JPH08221464A - Drawing editing device - Google Patents

Abstract

PURPOSE: To change the scales at a time in every drawing symbol showing a parts or in every 6-view drawings when the scales should be changed for the editing of a drawing or to set the defualt scales in every drawing symbol. CONSTITUTION: The drawing editing device is provided with an intra-drawing information storage means 107 which stores the management data on graphic elements consisting of drawing, parts, and projection drawing group hierarchy, a hierarchy specification means 210 which specifies the hierarchy whose scale is changed, an instruction input means 205 which receives the scale change value, a projection drawing group retrieval means 108 which retrieves the projection drawing group hierarchy belonging to the specified hierarchy, a projection drawing group scale updating means 106 which updates the scale of the retrieved projection drawing group, and a projection drawing group display means 109 which performs the scaling of the graphic elements belonging to the retrieved projection drawing group based on the received scale and the retrieved projection drawing group.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a CAD / CAE system and apparatus for supporting the design of industrial products.

[0002]

2. Description of the Related Art In a conventional two-dimensional CAD system, an operator creates a mechanical drawing by arranging two-dimensional graphic elements on a CAD drawing in combination and drawing a projected drawing of a product or a part. On the other hand, in the mechanical drawing method, the scale is changed so that the size of the projected view of the product or part is an appropriate size with respect to the paper surface. On the other hand, in the two-dimensional CAD system, a structure called a layer to which a graphic element belongs is provided in advance, and a scale is set for each layer. When the graphic elements are arranged and the drawing is advanced, the graphic elements are arranged according to the scale of layers. When the layer scale is changed, the image represented by the drawing element belonging to the layer is automatically changed to the size according to the layer scale.

The one adopting such a method is as follows.
For example: Hitachi, Ltd. Software application manual Drafting system HI
CAD / DRAFT / W (2) command edition 4th edition 3rd
See page 31.

[0004]

However, the management of the graphic elements by layers is left to the way of using the operator of the two-dimensional CAD system. For example, a layer is assigned to each projection drawing, a layer is assigned to each unit such as a 6-view drawing or a 3-view drawing drawn by trigonometry, or drawing elements are written in separate layers without such a rule. It is also possible.

Therefore, when it is attempted to change the scale of the image in the middle of drawing, it is necessary to know how the layers are used. Since projection views are usually drawn from a plurality of directions for one product or part such as a three-view or six-view, it is necessary to change the scale of the plurality of projection views. When multiple projections are represented by graphic elements belonging to one layer, the scale of that layer is changed. Further, when represented by graphic elements belonging to a plurality of layers, all scales of those layers must be changed. In this way, it is up to the operator who draws the drawing to decide in what unit the graphic elements that make up the image whose scale is to be changed are drawn in layers, unless rules are set in advance. To be done. Therefore, especially when a person other than the creator edits the drawing, it is necessary to confirm to which layer the graphic element belongs each time. Therefore, in such a case, the operation of layer confirmation must be performed when changing the scale.

On the other hand, it is an indirect operation such as a scale of a layer for changing the scale of a three-view drawing or a six-view drawing, and an intuitive operation cannot be performed.

Further, it may be considered that the scale is fixed because the specific image drawn in the drawing has been drawn up. It is desirable that the scales can be fixed at different levels such as those representing a specific part or a specific 6-view or detailed view.

Further, in a multi-item one-leaf drawing, a plurality of parts or products are drawn in one drawing, but projection drawings and sectional views are often drawn on a common scale for each part. Therefore, it is desirable to set a default scale for each graphic that represents a product or part.

The object of the present invention is to change the scale at a time in a unit called a symbol representing an arbitrary part when it is necessary to change the scale during editing of a drawing, or a three-view drawing or a six-view drawing. Is to change the scale in units called. In addition, if necessary, the scale of the unit that represents a specific arbitrary part or the unit of the three-view or six-view is fixed and cannot be changed.

It is also possible to set a default scale in units of a figure in the drawing or a figure representing an arbitrary part.

[0011]

In order to achieve the above object, the present invention is based on the drawings shown in the drawings, or the drawings showing the solids for each solid drawn in the drawings, or the six-view drawing and the three-view drawing. Change the interval of the units of the figure of one or more projection views, such as 6 or 3 views, for the units of the figure that represent one or more projection views, such as the plan view. Instead, the scale change process is performed, and a projection diagram group layer that represents one or more projection diagrams on which a solid image is drawn, and an upper layer of the projection diagram group layer that represents the image created for one solid item. Parts hierarchy, hierarchy management data of the hierarchy higher than the parts hierarchy, which represents the entire drawing, graphic element affiliation data that makes graphic elements belong to the projection drawing group, scaling origin for each projection drawing group, projection In-drawing information record that stores scale data for each figure group Means and a hierarchy specifying means for specifying the operation target hierarchy, an instruction input means for inputting the change value of the scale, from the hierarchical data stored in the figures in the information storage means,
A projection diagram group search means for searching the projection diagram group hierarchy according to the specified hierarchy; and a scale of the searched projection diagram group,
Based on the projection drawing group scale updating means for changing to the input scale and the retrieved projection drawing group, the scale of the projection drawing group for each projection drawing group and the scaling origin are used to display the graphic elements belonging to the projection drawing group. A drawing editing apparatus comprising: a projection drawing group display means for outputting a scaled result as a drawing.

Further, the present invention provides a diagram depicted in the drawings, a diagram representing a solid for each solid depicted in the drawings, or one or more projection views such as a six-view or a three-view. In addition to the means constituting the invention of claim 1, the scale is changed with a designated coordinate as a center in a unit called a symbol, and coordinate input means for inputting a coordinate point to be the center of the scale change, The drawing editing apparatus further comprises projection drawing group scaling origin updating means for updating the scaling origin of the retrieved projection drawing group by a predetermined method based on at least the input coordinate points. It is composed.

Further, the present invention represents an image depicted in the drawings, an image representing each solid in the drawings, or one or more projection views such as a six-view and a three-view. A projection diagram hierarchy for registering a graphic element representing a projection diagram and a projection diagram hierarchy in which a scale change process is performed for a unit called a diagram, without changing the interval between the units representing a projection diagram A projection diagram group layer that is an upper layer of the diagram group layer and that represents one or more projection diagrams on which a solid is drawn, and a component that is an upper layer of the projection diagram group layer and that represents the image drawn for one solid A hierarchy, hierarchy management data of a drawing hierarchy that is an upper hierarchy of the parts hierarchy and represents the entire drawing, and graphic element belonging data that makes the graphic elements belong to the projection drawing group,
A drawing storing a scaling origin of a projection drawing obtained by projecting a scaling origin arbitrarily set in the three-dimensional space in which the solid exists on the projection drawing according to the projection direction of the projection drawing, and scale data for each projection drawing group According to the specified hierarchy, the information storage means, the hierarchy specifying means for specifying the hierarchy to be operated, the instruction input means for inputting the change value of the scale, and the hierarchy data stored in the in-drawing information storage means, Projection drawing search means for searching the projection drawing hierarchy, projection drawing group scale updating means for changing the scale of the projection drawing group hierarchy higher than the searched projection drawing hierarchy to the input scale, and the searched projection Regarding the drawing, based on the scale of the projection drawing group hierarchy higher than the projection drawing hierarchy and the scaling origin of the projection drawing, the result of scaling the graphic elements belonging to the projection drawing is output as a drawing. It is obtained by constituting the drawing editing apparatus and a shadow diagram display unit.

Further, according to the present invention, when the hierarchy lower than the hierarchy designated to change the scale has a fixed scale, the scale changing process of the fixed hierarchy is not performed. Or the drawing editing apparatus according to 3, wherein the figure editing apparatus has scale fixed hierarchy storage means for storing data defining a hierarchy with a fixed scale, and the projection drawing group search means stores in-drawing information storage. From the hierarchy management data stored in the means, except the projection drawing group hierarchy below the scale fixed hierarchy stored in the scale fixed hierarchy storage means, search the projection view group hierarchy below the hierarchy specified by the hierarchy specifying means. The drawing editing apparatus is characterized by that.

Further, the present invention is the drawing editing apparatus according to claim 1 or 3, wherein, even if the scale designated as a scale change has a fixed scale, the scale change is processed. The graphic editing apparatus has scale fixed hierarchy storage means for storing data defining a hierarchy with a fixed scale, and the projection drawing group search means uses the hierarchy management data stored in the in-drawing information storage means. It is assumed that the hierarchy specified by the hierarchy specifying means does not have a fixed scale, and the hierarchy specified by the hierarchy specifying means is excluded, except for the projection group groups below the scale fixed hierarchy stored in the fixed scale hierarchy storage means. The drawing editing apparatus is configured to search the following projection drawing group hierarchy.

The present invention is also a drawing editing apparatus according to claims 1 and 3, wherein the projection drawing group hierarchy, the parts hierarchy, the hierarchy management data of the drawing hierarchy, and the graphic element belong to the projection drawing group. The drawing editing apparatus is configured to have means for creating and editing management data of graphic element belonging data.

Further, the present invention is a drawing editing apparatus according to claims 10 and 11, wherein a projection drawing hierarchy, a projection drawing group hierarchy, a parts hierarchy, hierarchy management data of a drawing hierarchy, and a graphic element are displayed. Create graphic element affiliation data to be assigned to the projection drawing group,
The drawing editing apparatus is characterized by having a means for editing.

According to the present invention, in the drawing editing device according to the first, third, tenth or eleventh aspect, the layer to be scaled is selected from the type of the layer to be operated and the graphic element belonging to the layer. As a means for specifying, when a graphic element belonging to a hierarchy and a classification of the hierarchy are inputted, the hierarchy specifying device stores a hierarchy of the specified classification to which the inputted graphic element belongs and the specified classification. The drawing editing apparatus is characterized in that the hierarchy searched by the means is specified and the searched hierarchy is specified as the hierarchy to be operated.

Further, the present invention is provided with means for setting a default scale in a unit called an image drawn in the drawings or an image representing each solid drawn in the drawings. A projection diagram group hierarchy generating means for generating projection diagram group hierarchy data for registering a graphic element representing one or more projection diagrams on which a three-dimensional image is drawn, and an upper layer of the projection diagram group hierarchy for drawing one solid A component hierarchy generating means for generating component hierarchy data for registering a graphic element representing a figure, and a drawing hierarchy generating means for generating drawing hierarchy data for registering a graphic element in a drawing, which is an upper hierarchy of the component hierarchy. Hierarchy specifying means for inputting the hierarchy to be operated and default scale data that becomes the default in the hierarchy below it according to the operator's instruction And scale setting means for setting inherits the data, and the figure element data, a projection view group hierarchy data,
Projection for displaying graphic elements belonging to the projection drawing group based on the part hierarchy data, the drawing hierarchy data, the in-drawing information storage means for storing the default scale data, the default scale data of the projection drawing group hierarchy, and the scaling origin. The drawing editing apparatus is provided with a drawing group display means.

[0020]

According to the drawing editing apparatus of the present invention, when one or more projected views of one or more parts or products are displayed as images according to the graphic data stored in the in-drawing information storage means, the hierarchy specifying means is provided. On the other hand, when the drawing hierarchy is specified as the hierarchy for changing the scale, the graphic element belonging to the drawing hierarchy for changing the scale is specified, and the scale for changing is input by the instruction inputting means, the projection drawing group searching means lowers the drawing hierarchy. All the projected view group hierarchies of are searched. In response to this, the scale of the retrieved projection diagram group is changed to the input scale by the projection diagram group scale updating means. Then, the projection diagram group display means displays the graphic elements belonging to the projection diagram group based on the projection diagram group scaling origin and the updated scale of the projection diagram group. As a result, the scale of the figure drawn in the drawing can be scaled without substantially changing the distance between the figures representing the projection figure group.

Further, to the hierarchy specifying means, a projection drawing group hierarchy is designated as a hierarchy for changing the scale, graphic elements belonging to the projection drawing group hierarchy for changing the scale are designated, and the scale to be changed is inputted by the instruction inputting means. Then, the projection diagram group searching means searches all the projection diagram group layers lower than the projection diagram group layer. In response to this, the scale of the retrieved projection diagram group is changed to the input scale by the projection diagram group scale updating means.
Then, the projection diagram group display means displays the graphic elements belonging to the projection diagram group based on the projection diagram group scaling origin and the updated scale of the projection diagram group. This makes it possible to change all the scales of a plurality of projection views represented by a specified projection view group.

Further, according to the drawing editing apparatus of the present invention, coordinate points are input by the coordinate input means in each of the scale changing processes in which the hierarchy is designated. Then, the scaling origin of the projection drawing group is changed by the projection drawing group scaling origin updating means so that the graphic elements belonging to the retrieved projection drawing group are scaled around the input scaling origin. Further, the projection drawing group display means displays the graphic elements belonging to the projection drawing group based on the updated projection drawing group scaling origin and the scale. As a result, the image representing the specified layer is scaled around the specified coordinate point.

Further, according to the drawing editing apparatus of the present invention, in each of the scale changing processes in which the hierarchy is designated, the projection drawing display means has the projection drawing scaling origin defined for each projection drawing and the updated projection drawing. Since the graphic elements belonging to the projection view are displayed based on the scale of the group, it is possible to perform scaling without changing the distance between the figures representing the projection view.

Further, according to the drawing editing apparatus of the present invention, in each of the scale changing processes in which the hierarchy is designated, the projection drawing group search means searches except the subordinate projection drawing group hierarchy of the hierarchy having the fixed scale. Therefore, it is possible to perform scaling except for the hierarchy whose scale is fixed.

Further, according to the drawing editing apparatus of the present invention, in each of the scale changing processes in which the hierarchy is specified, the hierarchy specifying means selects the object of scaling from the kind of the specified hierarchy and the graphic element belonging to the hierarchy. Can be specified.

Further, according to the drawing editing apparatus of the present invention, it is possible to input the hierarchy in which the scale is not changed, that is, the scale is fixed by the scale fixed hierarchy specifying means. Then, the scale-fixed hierarchy storage means stores the data defining the scale-fixed hierarchy in the scale-fixed hierarchy storage means.

Further, according to the drawing editing apparatus of the present invention, the projection drawing hierarchy, the projection drawing group hierarchy, the component hierarchy, the hierarchy management data of the drawing hierarchy, and the graphic element affiliation that makes the graphic element belong to the projection drawing group. You can create and edit data.

Further, according to the drawing editing apparatus of the present invention, it is possible to provide a default scale in the designated drawing hierarchy and parts hierarchy by the scale setting means. This makes it possible to set the default scale of the graphic drawn in the drawing and also set the default scale of the graphic representing the product or part corresponding to the part hierarchy. On the other hand, at the time of default setting of the part hierarchy, if the scale value is omitted, the default scale of the drawing hierarchy can be referred to and used as the default scale of the part. Further, when setting the scale of the projection view group, if the value of the scale is omitted, the default scale of the component hierarchy is referred to and the scale of the projection view group can be used. As a result, it is possible to set a default scale in a unit called a figure representing an arbitrary part.

[0029]

Embodiments of the drawing editing apparatus of the present invention will be described below.

First, an explanation will be given of an overall configuration common to the present invention, generation of a hierarchy, and registration of a graphic element in a hierarchy.

FIG. 5 is an overall configuration diagram showing an embodiment of the present invention. 5, the drawing editing device includes a mouse 2, a keyboard 3, an external device interface circuit 10, a bus 12, a CPU 13, a ROM 14, a RAM 15, an external storage device 16, a frame buffer 11, and a display device 9.
It has.

The mouse 2 is used for pointing a graphic element on the drawing image-displayed on the display 9. The keyboard 3 is used for inputting characters and commands such as graphic element generation command, scale change, drawing hierarchy generation, part hierarchy generation, projection drawing group hierarchy generation, projection drawing hierarchy generation command. That is, the mouse 2 and the keyboard 3 are configured as input means for inputting commands and the like according to the operation of the operator, and signals from the mouse 2 and the keyboard 3 are input to the CPU 13 and the like via the external interface circuit 10 and the bus 12. It is supposed to be done. CP
U13 performs various calculations based on the data input from the mouse 2 and the keyboard 3 and the data stored in the ROM 14, the RAM 15 and the external storage device 16, and transfers the image data to the display device 9 via the frame buffer 11. It is supposed to do.

Next, the registration of the graphic element in the drawing by the drawing hierarchy, the parts hierarchy, the projection drawing group hierarchy, and the projection drawing hierarchy will be described.

The hierarchical structure will be described with reference to the drawing 52 of FIG. In the drawing 52, the drawing hierarchy, the component hierarchy, the projection drawing group hierarchy, and the graphic elements registered in the projection drawing hierarchy are surrounded by rectangles of a solid line, a broken line, a one-dot chain line, and a two-dot chain line, respectively. Further, in the drawing 52, the L-shaped solid 50 and the convex solid 51 of FIG. 6 are drawn. The projections 58, 59, 60, 61, 62, 6 drawn from six directions are shown on the solid 50.
3 and a detailed view 64 in which the scale indicated by A in the front view is shown. The solid 51 has projection views 65, 66, 67, 68 drawn from four directions.

Here, the drawing hierarchy, the component hierarchy, the projection drawing group hierarchy, and the projection drawing hierarchy will be described. These hierarchies constitute a structure for registering graphic elements to be scaled and referring to the graphic elements belonging to the hierarchy when performing scale changing processing for each hierarchy. FIG.
FIG. 7 shows a state in which the graphic elements depicted in the drawing of FIG. 7 are registered by hierarchy. The graphic elements are the drawing hierarchy 502, the component hierarchy 503, 504, the projection diagram group hierarchy 505, 506.
507, projection view hierarchy 508, 509, 600, 601,
602, 603, 604, 605, 606, 607, 6
It is registered by the tree structure of 08. The drawing hierarchy 52 of FIG. 7 corresponds to the drawing hierarchy 502 of FIG. The drawing hierarchy is the highest hierarchy and is a hierarchy in which all the graphic elements in the drawing are registered. That is, it is possible to refer to the graphic element in the drawing by referring to the graphic element registered in the projection drawing hierarchy three floors below the drawing hierarchy. Next, there is a parts hierarchy as a child hierarchy of the drawing hierarchy. A parts hierarchy is provided for each product, subassembly, and part depicted in the drawing.
In the actual drawing, the solid 50 and the solid 51 are parts,
It corresponds to a part, and in that sense, a part hierarchy is provided corresponding to a solid. The component hierarchies 53 and 54 shown by the broken line rectangles in FIG. 7 correspond to the solid 50 and the solid 51, and correspond to the component hierarchies 503 and 504 in FIG. Next, there is a projection drawing group hierarchy as a hierarchy below it. The projection diagram group layer is a layer in which projection diagrams depicting the same solid are registered. However, when viewed from a plurality of directions, the projection views drawn at the positions according to the trigonometry or the one-angle method are grouped by one projection view group hierarchy. That is, a left side view 58, a front view 59, a right side view 60, which is a six-sided view of the solid 50,
The rear view 61, the top view 62, and the bottom view 63 are registered as one group in the projection view group layer 55, and the detailed view 64 is registered in another projection view group layer 57. Also, regarding the solid 51, 4
A front view 65 showing a plan view, a right side view 66, a top view 67,
The bottom view 68 is registered in the projection view group 56. The projection diagram group layers 55, 57, and 56 in FIG. 7 correspond to the projection diagram groups 505, 507, and 506 in FIG. 8, respectively. The reason why the projection drawings are divided into groups in this way is that a common scale is set for each group in the drawings by the trigonometric method or the one-angle method.

Further, a projection diagram hierarchy is provided below the projection diagram group hierarchy. The projection diagram layer is a layer literally provided corresponding to the projection diagram, and is a layer in which a graphic element representing the projection diagram is directly registered. Left side view 58, front view 59,
Right side view 60, rear view 61, top view 62, bottom view 63,
Detailed view 64, front view 65, right side view 66, top view 67,
The bottom view 68 is a left side view 50 in FIG.
8, front view 509, right side view 600, rear view 601, top view 602, bottom view 603, detailed view 604, front view 60
5, corresponding to the right side view 606, the top view 607, and the bottom view 608.

However, in the above description, it has been stated that the projection drawing hierarchy is provided, but it is preferable to use the projection drawing hierarchy.
And only the inventions dependent on claims 9 and 12, and in the inventions dependent on claims 1, 2 and 22 and claims 1 and 2, the projection drawing hierarchy is not provided, and the graphic element is directly registered in the projection drawing group hierarchy. To do. FIG. 9 shows the management of graphic elements by the hierarchy in that case. As mentioned above, the registration of the graphic element by the drawing hierarchy, the component hierarchy, the projection drawing group hierarchy, and the projection drawing hierarchy has been described.
By searching this hierarchical structure, it becomes possible to refer to the graphic elements belonging to each hierarchy.

Here, FIG. 10 shows the attributes of each layer and the graphic element. The following attributes are used to express the parent-child relationship between each layer and the graphic element, and are stored in the in-drawing information storage means 107. The drawing hierarchy has a pointer to the child part hierarchy. The component hierarchy has a pointer to the parent drawing hierarchy, a pointer to the sibling component hierarchy, and a pointer to the projection drawing group hierarchy that is a child. The projection diagram group hierarchy has a pointer to a parent component hierarchy, a pointer to a sibling projection diagram group hierarchy, and a pointer to a child projection diagram hierarchy. The projection view hierarchy has a pointer to a projection view group hierarchy that is a parent, a pointer to a projection view hierarchy that is a sibling, and a pointer to a graphic element that is a child. A graphic element has a pointer to the parent projection diagram hierarchy and a pointer to a sibling graphic element.

However, as described above, it is only the inventions subordinate to claims 2 and 10 and claims 2 and 10 that provide the projection drawing hierarchy, and the claims 1, 2, 22 and 1 In the inventions subordinate to 3 and 3, the projection drawing hierarchy is not provided, and the graphic element is directly registered in the projection drawing group hierarchy. In this case, the attributes of the drawing hierarchy and the component hierarchy do not change, but the projection drawing group hierarchy has a pointer to a graphic element instead of a pointer to a projection drawing to be a child. The graphic element has not a pointer to the parent projection diagram hierarchy but a pointer to the parent projection diagram group hierarchy.

Next, the hierarchy generation procedure will be described with reference to FIG.
The case will be specifically described as an example. The generation processing of the layers is performed interactively by the generation command 13 for each layer shown in FIG.
This is executed when the operator inputs 01, 1302, 1303, and 1304. Of course, batch processing can also be performed, but an interactive processing will be described as an example. Further, the process of generating the drawing, the part, and the projection drawing group is performed by the means described in claim 8 or claim 20.

Further, in the block diagram of the present invention, claim 1 is shown in FIG.
Claim 2 is FIG. 2, Claim 9, Claim 2 is FIG. 3, Claim 2
2 corresponds to FIG.

First, the drawing hierarchy generation command 130
Input 1 to generate a drawing hierarchy. When the drawing hierarchy generation command 1301 is input, the drawing hierarchy generation processing 1351
Is done.

An example of FIG. 52 will be described. The drawing hierarchy generated by the command is shown as a drawing hierarchy 502 in FIG. In addition, a marker associated with the hierarchy in a one-to-one relationship is generated so that the drawing hierarchy can be designated later on the display screen. Reference numeral 1401 in FIG. 12 is an example of a marker in the drawing hierarchy. Further, a correspondence relationship is provided between the graphic element representing the marker and the hierarchy so that the hierarchy can be traced from the marker. FIG. 13 also shows the correspondence between markers and layers. 6
Reference numeral 09 is a graphic element representing a marker associated with the drawing hierarchy.

Next, the component hierarchy generation command 1302 is input to generate a component hierarchy. Part hierarchy generation command 13
When 02 is input, a component hierarchy generation process 1352 is performed. In order to specify the parent of the component hierarchy to be generated, the mouse of the command is used to input a graphic element belonging to the marker of the parent drawing hierarchy to the operand of the command.

In the example of the drawing 52, the component hierarchy corresponding to each of the solid 50 and the solid 51 is generated. The command hierarchy specifies the parent hierarchy, so the drawing hierarchy 5
The graphic element belonging to the marker 02 is input. In FIG. 13, the generated component hierarchies are shown as a component hierarchy 503 and a component hierarchy 504, respectively.

When the operand of the command is input, the hierarchy specifying unit 210 refers to the data regarding the marker stored in the in-drawing information storage unit 107, and identifies the graphic element representing the marker input as the operand and the drawing hierarchy. By tracing the correspondence relationship, the parent drawing hierarchy 502 is specified. In addition, the generated component hierarchy 503 and component hierarchy 504 have a one-to-one correspondence with the hierarchy so that instructions can be given later on the display screen.
A marker associated with is generated. Reference numeral 1402 in FIG. 12 is an example of a marker in the component drawing hierarchy. Further, a correspondence relationship is provided between the graphic element representing the marker and the hierarchy so that the hierarchy can be traced from the marker. 610 and 611 in FIG.
Is a graphic element representing a marker associated with the component drawing hierarchy 503, 504.

Furthermore, the projection diagram group hierarchy generation command 130
By inputting 3, the projection diagram group hierarchy is generated.
When the projection diagram group hierarchy generation command 1303 is input, the projection diagram group hierarchy generation processing 1353 is performed. A graphic element belonging to the parent component hierarchy marker is input to the command operand.

In the example of the drawing 52, a projection diagram group layer 505 having a component layer 503 as a parent, a projection diagram group layer 507, and a projection diagram group layer 506 having a component layer 504 as parents are generated. However, when generating the projection diagram group layers 505 and 507,
A graphic element representing a marker associated with the component hierarchy 503 is input to the command operand. On the other hand, when the projection diagram group hierarchy 506 is generated, the graphic element representing the marker associated with the component hierarchy 504 is input. Layer identifying means 21
0 specifies the parent component hierarchy 503 and the component hierarchy 504 from the data stored in the in-drawing information storage means 107. Further, a marker is generated and associated with the generated projection diagram group hierarchy so that it can be designated later. 14 of FIG.
Reference numeral 03 is an example of a marker of the projection diagram group hierarchy. In addition, FIG.
612, 613, and 614 are the projection diagram group hierarchy 5 respectively.
Graphical elements representing the markers 05, 507, and 506.

Next, a projection diagram layer is generated as a layer below the projection diagram group layer.

The projection diagram hierarchy is generated by inputting the projection diagram hierarchy generation command 1304. When the projection diagram hierarchy generation command 1304 is input, the projection diagram hierarchy generation means performs a projection diagram hierarchy generation process 1354. In order to specify the parent projection diagram group hierarchy, a graphic element representing a marker associated with the projection diagram group hierarchy is input to the operand of the command.

Generation of a projection view hierarchy will be described with reference to the example of the drawing 52 in FIG. First, the projection group group 505 is used as a parent,
The left side view 508 and the front view 5 which are the projection view layers depicting 0
09, right side view 600, rear view 601, top view 602
A bottom view 603 is generated. When generating these projection views, a graphic element representing a marker associated with the projection view group hierarchy 505 is input to the command operand. on the other hand,
Having the projection diagram group layer 507 as a parent, a projection diagram layer 604 which is a detailed diagram showing a portion A of the solid 50 is generated. In this case, a graphic element representing a marker associated with the projected view group hierarchy 507 is input to the command operand. Furthermore, the parent has the projection diagram group hierarchy 506, and
A front view 605, a right side view 606, a top view 607, and a bottom view 608 of a projection drawing depicting the above are generated. In this case, a graphic element representing a marker associated with the parent projection diagram group hierarchy 506 is input to the command operand. When a graphic element belonging to a marker of the parent projection drawing group hierarchy is input, the hierarchy specifying means 210 causes the in-drawing information storage means 107.
From the data stored in
07,506 is specified.

Before describing the process of registering the graphic element in the hierarchy, the description of the positional information of the graphic element in the conventional CAD system will be described. The position information of the graphic element is described by the coordinate system of the layer to which it belongs.
Further, the layer coordinate system has a relative positional relationship and scale with the paper coordinate system of the drawing, and the positional information of the graphic element on the drawing can be referred to via the layer coordinate system. Therefore, the drawing of the graphic element is performed based on the positional information of the graphic element on the drawing referenced through the layer coordinate system. On the other hand, in claims 1, 2 and 22 and inventions dependent on claims 1 and 2, the coordinate system of the projection drawing group is provided instead of the coordinate system of the layer, and the position information of the graphic element is the coordinates of the projection drawing group. Describe by system. Further, the relative positional relationship between the coordinate system of the projection diagram group and the drawing coordinate system is determined by setting the origin of the coordinate system of the projection diagram group on the paper coordinate system of the drawing to the attribute of the projection diagram group hierarchy shown in FIG. 12
It has the scaling origin shown in 03 and also has a scale for each projection drawing group in the attribute 1203 of the projection drawing group hierarchy. According to this, the graphic elements belonging to the projection drawing group are drawn. The following expression is an expression representing the conversion of the points in the projection view group coordinate system into the drawing paper coordinate system. P is a point coordinate on the projection diagram group coordinate system, S is a scale, Op is a scaling origin of the projection diagram group, and D is a point coordinate on the drawing coordinate system.

[0053]

D = SP + Op (Equation 1) On the other hand, in the inventions dependent on claims 9 and 12 and claims 9 and 12, the coordinate system of the projection diagram is provided instead of the coordinate system of the layer, and the position of the graphic element is set. Information is described by the coordinate system of the projected view. In addition, the relative positional relationship between the coordinate system of the projected view and the drawing coordinate system is the origin of the coordinate system of the projected view on the paper coordinate system of the drawing,
It has the scaling origin shown in the attribute 1204 of the projection diagram hierarchy shown in FIG. However, since the scales have a common value in the projection views within one projection view group hierarchy, the attribute 1203 of the projection view group hierarchy has the scale. According to this, the graphic elements belonging to the projection drawing group are drawn. The following equation is an equation representing the conversion of a point on the projection drawing coordinate system into the drawing paper coordinate system. P is a point coordinate on the projected view coordinate system, S is a scale, Opr is a scaling origin of the projected view, and D is a point coordinate on the drawing coordinate system.

[0054]

[Formula 2] D = SP + Opr (Formula 2) Next, the registration process of the graphic element in the hierarchy will be described.
The process of registering the graphic element in the projection view hierarchy is performed in the case of claims 9 and 12 of the present invention and the invention subordinate to claims 9 and 12. In the case of claims 1, 2 and 22 and the invention subordinate to claims 1 and 2, the registration process is not the projection view registration process but the projection view group hierarchy, but the registration destination is the projection view group hierarchy. It just changes. There are several possible commands for registering the graphic element in the hierarchy, and three commands are given here as examples. One is to specify the projection drawing of the registration destination again for the generated graphic element without specifying the projection drawing of the registration destination and perform the registration processing. The second is to specify the projection drawing of the registration destination when the graphic element is generated, and to perform the registration processing at the time of generation. Third, the projection map of the registration destination at that time is declared, and the graphic element generated after that is assumed to belong to the projection map declared earlier, even if the projection map of the registration destination is not specified at the time of generation. The registration process is performed. In the third registration process, it is necessary to store the identification data of the declared projection view in the in-drawing information storage means. When registering the generated graphic element, it is registered in the projection view stored as the registration destination. It is done by

Next, the scale changing process of the drawing hierarchy, the component hierarchy, and the projection drawing group hierarchy will be described. The scaling process of each layer is
Drawing scale change 5910 and parts scale change 591 of FIG.
2. The command for changing the scale of projection diagram group 5914 is input to perform. That is, the command is input corresponding to the hierarchy intended to change the scale. The following will describe claims 2 and 10 and inventions subordinate to claims 2 and 10. The contents of the operand for each of the three commands are the layer to be executed, the scaling origin, and the scale to be changed. On the other hand, in the case of the invention of claim 21 which is dependent on claims 2 and 10, it is a graphic element, a scaling origin, and a scale that belong to the hierarchy to be executed. The graphic element belonging to the hierarchy to be executed and the scaling origin are designated on the drawing displayed on the screen using the mouse 2 or the like, and the scale is input using the keyboard 3 or the like. Further, among the operands, the graphic element belonging to the layer to be executed is input by the layer specifying unit 210, and the coordinate point is the coordinate input unit 2.
Input by 11. The scale to be changed is input by the instruction input means 205.

According to the twenty-first aspect of the invention, when the operand of the command is input, the hierarchy specifying means 210 is used by the hierarchy specifying means 210 to specify the hierarchy to be executed.
As shown in FIG.
964 is performed. That is, the drawing hierarchy specifying process 59
At 60, the drawing hierarchy to which the input graphic element belongs is specified from among the plurality of drawings displayed on the screen. Specifically, when a plurality of drawings are displayed on the screen for editing, a plurality of hierarchical structures shown as an example in FIG. 13 are stored in the in-drawing information storage unit 107 corresponding to the drawings, and The specifying unit 210 searches the drawing hierarchy to which the input graphic element belongs. Similarly, also in the component hierarchy specifying process 5962 and the projection view group hierarchy specifying process 5964, the component hierarchy and the projection view group hierarchy to which the input graphic element belongs are specified from the hierarchical structure.

When the hierarchy whose scale is to be changed is specified as described above, as shown in FIG.
961, 5963, 5965 are performed. FIG. 15 and FIG. 1 showing the scale change processing of the drawing hierarchy, the component hierarchy, and the projection drawing group hierarchy.
6, shown in FIG. The scale change processing of the hierarchy performs the scale change processing of the child hierarchy, and the scale change processing is inherited by the lower hierarchy. That is, in the scale change process of the drawing hierarchy, the scale change process 2201 of the part hierarchy is performed for the part hierarchy that the drawing has designated as a child. The part drawing hierarchy scale changing process 2201 further performs a scale changing process 2301 on the projection drawing group hierarchy that the part drawing hierarchy has as a child. Further, as shown in FIG. 17, the scale change process 2301 of the projection diagram group hierarchy is a projection diagram group scaling origin movement process 2401.
And a scale update process 2402 for the projection diagram group and a scaling process 240 for the graphic element that the projection diagram group has as a child.
Do 3. Projection group scaling origin movement processing 240
1, the projection diagram group scale updating process 2402 and the scaling process 2403 are performed by the projection diagram group scaling origin updating means 110, the projection diagram group scale updating means 106, and the projection diagram group displaying means 109, respectively.

FIG. 18 shows an example of the scale change processing 2301 of the projection drawing group. This is an example in which C2505 is input as the center point of scaling and the scale of the projection drawing group to which the line segment 2501 belongs is changed from 2 to 4. The line segment 2501 is displayed like a line segment 2502 after the scale change. However, Op2510 is the scaling origin of the projection group coordinate system before the scale change. Further, h2507 and v2506 are the horizontal direction and the vertical direction in the paper plane coordinate of the drawing, and ph2508 and pv2
Reference numeral 509 represents the horizontal and vertical directions of the projected view group coordinate system.

On the other hand, the scaling origin of the projection group is Op25.
From 10, move to Op'2511. In accordance with this, the projection diagram group scaling origin movement processing 2401 calculates the coordinate values of the projection diagram group scaling origin stored in the attributes of the projection diagram group,
This is a process of changing to the coordinate value of the destination. The scaling origin of the moving destination is shown in the following formula. However, P2503 is a point on the graphic element in the projected view group coordinate system before the scale change,
D'2504 is a point on the graphic element in the paper coordinates of the drawing after the scale change. S is the scale of the projection diagram group before the scale change, and S'is the scale after the scale change.

[0060]

(Equation 3)

As described above, when the coordinate value of the projection drawing group scaling origin is changed to the coordinate value of the movement destination, the projection drawing group scaling origin moving processing 2401 is completed.

Next, the scale update processing 2402 of the projection drawing group is performed. This is a process of updating the scale of the projection drawing group stored as the attribute of the projection drawing group to the changed value.

Next, scaling processing 2403 is performed on the graphic elements that the projection drawing group hierarchy has as children. Also, a conversion formula of the point coordinates on the graphic element to the drawing coordinates is shown. In accordance with this, the positional information of the graphic element described in the projected view group coordinates is converted into the drawing coordinates to draw the graphic element.

[0064]

## EQU00004 ## D '= S'P + Op' (Equation 4) As described above, when the scaling process 2403 is applied to all the graphic elements belonging to the projection drawing group, the scaling changing processing 2 of the projection drawing group is performed.
301 ends.

Below, an example of scale change of the drawing hierarchy, an example of scale change of the parts scale, and an example of scale change of the projection drawing group are respectively shown in FIG.
21 and 22. An example of scale change is shown in FIG.
It is a modification of 01. Drawing 2601 includes a projection view of an L-shaped solid drawn on a scale 4, a detailed view drawn on a scale 5, and a projection drawing of a convex solid drawn on a scale 4. As shown by the dashed-dotted rectangle, a plurality of projection views of the L-shaped solid, a detailed view of the scale 5, and a plurality of projections of the convex solid drawn by the scale 4 are respectively included in the projection diagram hierarchy 55. , 57,
56 have been generated. Also, the projection diagram group layers 55 and 57
A component hierarchy 53 for registering the
The component hierarchy 54 for registering is generated. Further, FIG. 9 shows the management of the graphic element by the hierarchy.

FIG. 20 shows an example of changing the scale of the drawing hierarchy. As an operand of the drawing scale changing command, a line segment 2703 is designated as a graphic element belonging to the drawing hierarchy, the drawing scale is set to 2, and the center point of the scaling is set. Point 2702
Is specified. The scale of all graphic elements on the drawing has changed. Further, FIG. 21 is an example of changing the scale of the component hierarchy, in which the line segment 2803 is designated as the graphic element belonging to the component hierarchy 53, the scale of the component hierarchy is set to 2, and the point 2802 is designated as the center point of scaling. .
All the scales of the graphic elements belonging to the parts hierarchy 53 have been changed. Further, FIG. 22 shows an example of scale change of the projection diagram group hierarchy.
03 is designated, the scale of the projection diagram group hierarchy is set to 2, and the point 2902 is designated as the center point of scaling.
All the scales of the graphic elements belonging to the projection diagram group hierarchy 55 have been changed.

Next, the scale changing process of claim 1 and the invention according to claim 1 will be described. Claim 1 and the invention dependent on Claim 1 are Claim 2 and Claim 2.
The difference from the invention subordinate to is in the scale change processing 2301 of the projection drawing group. That is, in claim 1, since the scaling origin is defined using the scaling origin defined in advance in the attributes of the projection group, the scaling origin of the projection group does not move, and the scaling origin of the projection group does not move. is there. Therefore, the scaling origin is not input to the operand, but only the hierarchy and scale to be executed are input.

On the other hand, FIG. 23 shows an example of changing the scale of the projection drawing group. In this example, the scale of the projection drawing group to which the line segment 2101 belongs is changed from 2 to 4. Op2110 is the scaling origin of the projection group coordinate system. In addition, the scale change process 23 of the projection diagram group hierarchy
The contents of 01 are shown in FIG. The scaling origin of the projection drawing group hierarchy is not moved, and the scale update processing 1601 for the projection drawing group is performed.
Then, only the scaling processing 1602 of the graphic element is performed.
Also, a conversion formula for converting the point coordinates on the graphic element into the drawing coordinates is shown. However, P2103 in FIG. 23 is a point on the graphic element in the projected view group coordinate system before the scale change, and D'2104 is a point on the graphic element in the paper coordinate system of the drawing after the scale change. In accordance with this, the positional information of the graphic element described in the projected view group coordinates is converted into the drawing coordinates to draw the graphic element.

[0069]

D ′ = S′P + Op (Equation 5) Here, the definition of the projection drawing group scaling origin according to claim 5 will be described. The definition of the projection drawing group scaling origin is defined by the projection drawing group scaling origin definition command 1 in FIG.
It is performed by inputting 311. As the operand, first, a graphic element belonging to the projection diagram group hierarchy that defines the scaling origin is input, and secondly, the projection diagram group scaling origin is input. When the command is input, the coordinate input means of the fifth aspect executes the projection group scaling origin registration processing 1361. The input of coordinate data is
Use the mouse device 2 to give an instruction on the drawing display screen,
This is done by inputting coordinate values with the keyboard 3. FIG. 2 shows the contents of the projection drawing group scaling origin registration processing 1361.
5 shows. In the projection drawing group hierarchy specifying processing 1701, the projection drawing group hierarchy defining the scaling origin is specified from the graphic element designated by the first operand. When the projection diagram group hierarchy is specified, the projection diagram group scaling origin attribute input processing 1
702 is executed. In the projection drawing group scaling origin attribute input processing 1702, the coordinate value of the projection drawing group scaling origin input to the second operand is stored as the attribute of the specified projection drawing group hierarchy.

27, 28, and 29 show examples of scale change of the drawing hierarchy, examples of scale change of parts scale, and examples of scale change of projection drawing group in the case of claim 1, respectively. The scale change example is a modification of the drawing 3001 of FIG. A drawing 3001 includes a projection view of an L-shaped solid drawn on a scale 4, a detailed view drawn on a scale 5, and a projection drawing of a convex solid drawn on a scale 4. As shown by the dashed-dotted rectangle,
Projection diagram group layers 55, 57, and 56 are generated for each of the plurality of projection views of the L-shaped solid, the detailed view of the scale 5, and the plurality of projection views of the convex solid drawn on the scale 4. Also,
A component layer 53 for registering the projection diagram group layers 55 and 57 is generated, and a component layer 54 for registering the projection diagram group layer 56 is generated. Further, FIG. 9 shows the management of graphic elements by hierarchy. On the other hand, in the drawing 3001, the scaling origin is defined in advance for each projection diagram group hierarchy. Point 300
2, point 3003 and point 3004 are projection diagram group hierarchy 5 respectively
The scaling origins are 5, 57 and 56.

FIG. 27 shows an example of changing the scale of the drawing hierarchy. As an operand of the drawing scale changing command, a line segment 3102 is designated as a graphic element belonging to the drawing hierarchy, and the drawing scale is set to 2. The scale of graphic elements on the drawing is based on the scaling origin of each projection group,
All of them have been changed, and the distances between the projection drawing groups belonging to the drawings are processed without being changed. Also,
FIG. 28 is an example of changing the scale of the component hierarchy, in which a line segment 3202 is designated as a graphic element belonging to the component hierarchy 53, and the scale of the component hierarchy is set to 2. All the scales of the graphic elements belonging to the parts hierarchy 53 have been changed. Further, FIG. 29 is an example of scale change of the projection view group hierarchy, in which a line segment 3302 is designated as a graphic element belonging to the projection view group hierarchy 55, and the scale of the projection view group hierarchy is set to 2. All the scales of the graphic elements belonging to the projection diagram group hierarchy 55 have been changed.

Next, the scale changing process of claim 9 and the invention according to claim 9 will be described. Claim 9 and inventions subordinate to claim 9 are claim 2 and claim 2.
The difference from the invention subordinate to is that the scaling processing 2301 of the graphic element does not perform the scaling processing based on the scaling origin specified in the command operand, but uses the scaling origin defined in advance in the attribute of the projection diagram hierarchy. To perform scaling processing. Therefore, the scaling origin is not input to the operand, but only the hierarchy and scale to be executed are input.

Here, the scaling origin of the projection view will be described. The scaling origin of the projection view is set on the assumption that the solid drawn in common for each projection is on a three-dimensional space, and the scaling origin provided near the solid is projected to the projection. 30 and 31 show examples of the scaling origin in the three-dimensional space and the scaling origin projected on the drawing. Coordinate axis 1801, coordinate axis 1
Reference numeral 802 faces the normal direction of the front view 1903 and the right direction of the right side view 1904 in the drawing 1901, respectively. At this time, the scaling origin 1804 in the three-dimensional space is indicated by a black circle on the projection diagram.

Before describing the scale changing process, the definition of the projection drawing scaling origin according to claim 16 will be described. The projection drawing scaling origin is defined by inputting the projection drawing scaling origin definition command 1312 in FIG. As the operand, first, a graphic element belonging to the projection drawing hierarchy that defines the scaling origin is input, and secondly, the projection drawing scaling origin is input. When the command is input, the projection drawing scaling origin registration processing 1362 is performed by the projection drawing scaling origin updating means of claim 16. The input of the coordinate data is performed by instructing on the display screen of the drawing by using the mouse device 2 or by inputting the coordinate value by the keyboard 3. The contents of the projection drawing scaling origin registration processing 1362 are shown in FIG. In the projection drawing layer identification processing 1501, the projection drawing layer defining the scaling origin is specified from the graphic element designated by the first operand. When the projection view hierarchy is specified, the projection view scaling origin attribute input processing 1502 is executed. Projection group scaling origin attribute input processing 15
In 02, the coordinate value of the projection drawing scaling origin input to the second operand is stored as an attribute of the specified projection drawing hierarchy.

The scale changing process will be described below. As described above, the ninth aspect of the invention and the invention dependent on claim 9 are different from the second aspect and the invention according to claim 2 in the scale change processing 2301 of the projection diagram group hierarchy. FIG. 33 shows the projection diagram group scale changing process 2301. The scale change process 2301 of the projection view group hierarchy performs a scale update process 801 of the projection view group and a scale change process 802 for the projection view hierarchy that the projection view group hierarchy has as a child. By the scale updating process 801 of the projection drawing group, the scale of the projection drawing group is updated to the changed value, so that the changed value is input as the attribute of the projection drawing group.
FIG. 34 shows an example of the scale change process 802 of the projection view hierarchy.
In this example, the scale of the projection drawing group to which the line segment 1001 belongs is changed from 2 to 4. The line segment 1001 is the line segment 1002 after the scale change.
Is displayed. However, h2507, v2506
Are the horizontal and vertical directions in the drawing paper coordinates. Also, ph1008 and pv1009 are in the horizontal and vertical directions of the projection drawing coordinate system, and Opr1010 is the scaling origin of the projection drawing coordinate system. Here, the scale changing process 802 of the projection diagram hierarchy is performed as shown in FIG.
Shown in The scale change process 802 of the projection view hierarchy performs a scaling process 3501 of the graphic element for the graphic element belonging to the projection view hierarchy. Also, a conversion formula for converting the point coordinates on the graphic element into the drawing coordinates is shown. However, P1003 in FIG.
Is the point on the figure element in the projected view coordinate system before scaling,
D'1004 is a point on the graphic element in the paper plane coordinates of the drawing after the scale change. According to this, the position information of the graphic element described in the projected view coordinates is converted into the drawing coordinates to draw the graphic element.

[0076]

[Equation 6] D ′ = S′P + Opr (Equation 6) Hereinafter, a scale change example of the drawing hierarchy, a scale change example of the component scale,
Examples of changing the scale of the projection drawing group are shown in FIGS. 37, 38, and 3, respectively.
9 shows. The scale change example is a modification of the drawing 3601 of FIG. Drawing 3601 includes a projection view of an L-shaped solid drawn on a scale 4, a detailed view drawn on a scale 5, and a projection drawing of a convex solid drawn on a scale 4. As shown by the two-dot chain line rectangle, a projection of the L-shaped solid, a detailed view of the scale 5,
A projection diagram hierarchy is generated for each of the projections of the convex solid drawn on the scale 4. Further, as indicated by the dashed-dotted rectangle, a plurality of projection views of the L-shaped solid, a detailed view of the scale 5, and a plurality of projection views of the convex solid drawn by the scale 4 are respectively provided. Hierarchies 55, 57 and 56 have been generated. Further, a component layer 53 for registering the projection diagram group layers 55 and 57 is generated, and a component layer 54 for registering the projection diagram group layer 56 is generated. FIG. 8 shows the management of graphic elements by hierarchy. On the other hand, in the drawing 3601, the scaling origin is previously defined for each projection diagram hierarchy. Points 3602 to 3610 are scaling origins defined in the projection diagram hierarchy.

FIG. 37 shows an example of changing the scale of the drawing hierarchy. As an operand of the drawing scale changing command, a line segment 3702 is designated as a graphic element belonging to the drawing hierarchy and the drawing scale is set to 2. The scale of all graphic elements on the drawing has changed. However, the scaling process of the graphic element is performed based on the scaling origin defined for each projection diagram hierarchy, and the process is performed without changing the distance of the projection diagram belonging to the drawing. Also,
FIG. 38 is an example of changing the scale of the component hierarchy, in which a line segment 3802 is designated as a graphic element belonging to the component hierarchy 53, and the scale of the component hierarchy is set to 2. All the scales of the graphic elements belonging to the parts hierarchy 53 have been changed. Further, FIG. 39 is an example of scale change of the projection view group hierarchy, in which a line segment 3902 is designated as a graphic element belonging to the projection view group hierarchy 55, and the scale of the projection view group hierarchy is set to 2. All the scales of the graphic elements belonging to the projection diagram group hierarchy 55 have been changed.

Next, the eleventh aspect and the invention subordinate to the eleventh aspect will be described. The drawings obtained from the processing results of both claim 11 and the invention dependent on claim 11 and claim 2 and the invention dependent on claim 2 are similar in appearance and the effect is the same in that sense. However, the different point is that in the former invention, a projection diagram hierarchy is provided and processing is performed. Regarding the contents of the process, the drawing scale changing process 5961, the parts scale changing process 5963 and the claim 2 are described.
Also, the present invention is the same as the invention according to claim 2, and the projection view group scale changing processing 2301 is different. Projection group change processing 2
301 is shown in FIG. First, the scale changing process 5301 of the projection drawing hierarchy is performed for the projection drawing hierarchy belonging to the projection drawing group hierarchy. FIG. 41 shows the scale change process 5301 of the projection view hierarchy. Here, the projection drawing scaling origin movement processing 540
1 and the graphic element scaling process 5402 for the graphic elements belonging to the projected view.

Before explaining each process, FIG. 42 shows an example of the scale change process 5301 of the projection diagram hierarchy. C55
Enter 05 as the center point for scaling and
This is an example in which the scale of the projection view group to which 1 belongs is changed from 2 to 4. The line segment 5501 is displayed as a line segment 5502 after the scale change. However, Opr5510 is the scaling origin of the projection coordinate system before scaling. In addition, h2507 and v2506 are the horizontal and vertical directions, respectively, in the paper plane of the drawing.
08 and pv5509 are the horizontal and vertical directions of the projected coordinate system.

On the other hand, the scaling origin of the projected view is Opr551.
From 0, move to Opr'5511. In the projection drawing scaling origin movement processing 5401, the scaling origin among the attributes of the projection drawing is updated accordingly. The formula for calculating the scaling origin after moving is shown below. However, S is the scale of the projection diagram group before the scale change, and S ′ is the scale after the scale change.

[0081]

(Equation 7)

As described above, when the coordinate value of the projection drawing scaling origin is changed to the coordinate value of the movement destination, the projection drawing scaling origin moving process 5401 is completed.

Next, the graphic element scaling process 5402 is performed on the graphic elements belonging to the projection drawing. Also, a conversion formula of the point coordinates on the graphic element to the drawing coordinates is shown. According to this, the position information of the graphic element described in the projected view coordinates,
Convert to drawing coordinates and draw a graphic element. However, P5
Reference numeral 503 is a point on the graphic element in the projected view group coordinate system before the scale change, and D'5504 is a point on the graphic element in the paper coordinate of the drawing after the scale change.

[0084]

D ′ = S′P + Opr ′ (Equation 8) As described above, when the scaling process 5402 is applied to all the graphic elements belonging to the projection view, the scale changing process 530 of the projection view is performed.
1 ends.

When the scale changing process 5301 of the projection diagram is completed, the scale updating process 5302 of the projection diagram group is performed. this is,
Among the attributes 1203 of the projection diagram group, the scale is updated to the changed value. As described above, when the updating of the attributes is completed, the projection diagram group scale changing process 2301 is completed. Further, as described above, the drawings obtained by claim 12 and the invention subordinate to claim 12 are similar to those obtained as a result of claim 3 and the invention subordinate to claim 3, Item 1
The scale change example of the drawing hierarchy, the scale change example of the component scale, and the scale change example of the projection drawing group according to the invention according to claim 1 and claim 11 are the same as those in FIG. 20, FIG. 21, and FIG. 22, respectively.

Next, the fourteenth aspect and the invention subordinate to the fourteenth aspect will be described. The drawings obtained from the results of the processing of both claim 14 and the invention subordinate to claim 14 and claim 1 and the invention subordinate to claim 1 are similar in appearance and have the same effect in that sense. However, the different point is that in the former invention, a projection diagram hierarchy is provided and processing is performed. Regarding the contents of the processing, the drawing scale changing processing 5961, the parts scale changing processing 5963, and
Also, the present invention is the same as the invention according to claim 1, and the projection view group scale changing process 2301 is different. Projection group change processing 2
301 is shown in FIG. First, the scale changing process 5601 of the projection drawing hierarchy is performed for the projection drawing hierarchy belonging to the projection drawing group hierarchy. FIG. 44 shows the scale change process 5601 of the projection view hierarchy. Here, projection drawing scaling origin movement processing 570
1 and the graphic element scaling process 5702 for the graphic elements belonging to the projection view.

Before explaining each processing, FIG. 45 shows an example of the scale changing processing 5601 of the projection drawing hierarchy. Line segment 5
This is an example in which the scale of the projection diagram group to which 801 belongs is changed from 2 to 4. The line segment 5801 is displayed as a line segment 5802 after the scale is changed. However, Op5805 is the scaling origin of the projection drawing group, and Opr5810 is the scaling origin of the projection drawing coordinate system before scaling. Also, h2507 and v2506 are the horizontal and vertical directions in the plane of the drawing, respectively, and ph5808 and pv
5809 is the horizontal and vertical directions of the projection map coordinate system.

On the other hand, the scaling origin of the projection view is Opr581.
From 0, move to Opr'5811. In the projection drawing scaling origin movement processing 5701, the scaling origin among the attributes of the projection drawing is updated accordingly. The formula for calculating the scaling origin after moving is shown below. However, S is the scale of the projection diagram group before the scale change, and S ′ is the scale after the scale change.

[0089]

[Equation 9]

When the coordinate value of the projection drawing scaling origin is changed to the coordinate value of the moving destination based on the above equation, the projection drawing scaling origin moving processing 5701 is completed.

Next, a graphic element scaling process 5702 is performed on the graphic elements belonging to the projection drawing. Also, a conversion formula of the point coordinates on the graphic element to the drawing coordinates is shown. According to this, the position information of the graphic element described in the projected view coordinates,
Convert to drawing coordinates and draw a graphic element. However, P5
Reference numeral 803 is a point on the graphic element in the projection drawing coordinate system before the scale change, and D′ 5804 is a point on the graphic element in the paper coordinate of the drawing after the scale change.

[0092]

[Equation 10] D ′ = S′P + Opr ′ (Equation 8) As described above, when the scaling process 5702 is applied to all the graphic elements belonging to the projection view, the scale changing process 560 of the projection view is performed.
1 ends.

When the scale changing process 5601 of the projection diagram is completed, the scale updating process 5602 of the projection diagram group is performed. this is,
Among the attributes 1203 of the projection diagram group, the scale is updated to the changed value. As described above, when the updating of the attributes is completed, the projection diagram group scale changing process 2301 is completed. Further, as described above, the drawings obtained by claim 14 and the invention subordinate to claim 14 are similar to those obtained as a result of claim 1 and the invention subordinate to claim 1. Item 1
The scale change example of the drawing hierarchy, the scale change example of the component scale, and the scale change example of the projection drawing group according to the invention according to claim 4 and claim 14 are the same as those in FIGS. 27, 28, and 29, respectively.

On the other hand, in the inventions of claims 7, 8, 17 and 18, even if the scale of the hierarchy is fixed and the scale of the upper hierarchy is changed, the scale changing process of the lower hierarchy with the fixed scale is performed. You can turn it off. However, before describing the scale changing process when the scale is fixed, the hierarchical scale fixing process that is implemented in the invention of claim 19 for setting a scale with a fixed scale will be described. The layer scale fixing process 1360 is performed by the scale fixing command 13 shown in FIG.
This is done by entering 10. As the operand of the command, enter the hierarchy whose scale is fixed. The hierarchy to which the scale is fixed is input by the scale-fixed hierarchy specifying means of claim 19. In the layer scale fixing process 1360, data is input to the scale fixing flag which is an attribute of the layer shown in FIG. 10 with respect to the layer whose scale is input to the operand. That is, the information for identifying the layer to which the scale is fixed is input to the attribute of the layer. Therefore, for example, 0 is input as an initial value to the scale fixing flag of the hierarchy, and 1 is input when the scale fixing command 1310 is executed.

Next, the scale changing process when the scale is fixed will be described. As the scale change command, as shown in FIG. 14, the command of drawing hierarchy scale change 5910, the component hierarchy scale change 5912, and the projection view group hierarchy scale change 5914 are input as in the case where the scale is not fixed. Done by. The operand specifications are also defined in claim 3.
In the case of the invention dependent on the invention of claim 3, as in the case where the scale is not fixed, the hierarchy of the scale change target, the scaling origin, and the value of the scale to be changed are input, and In the case of the invention dependent on the inventions of claims 1 and 9, the hierarchy of the scale change target and the value of the scale to be changed are input. Further, the layer identification processing 5960, 5962, 5964 for identifying the layer of the scale change target is similarly performed after the command is input. The difference from the case where the scale is not fixed lies in the scale changing process described below. In the drawing hierarchy scale change command 5910, the drawing hierarchy specifying process 5
When 960 is executed, the drawing scale change processing 5961 is executed. First, the scale changing process according to claims 6 and 17 will be described. FIG. 46 shows the drawing scale change processing 5961.
It is the figure which showed. First, the scale change flag is referred to in the attribute 1201 of the drawing. If the referenced flag is 1, that is, if the scale is fixed, the command ends without performing any processing. That is, in other words, it is determined whether the scale is fixed by the flag, and the scale changing process is performed. On the contrary, when the referenced flag is 0, that is, when the scale is not fixed, the scale fixed flag is referred to for the child part hierarchy of the drawing hierarchy.
If the referenced flag is 0, that is, if the scale is not fixed, scale change processing 5004 of the component hierarchy is executed. On the contrary, when the referenced flag is 1, that is, when the scale is fixed, the scale change flag is referred to for the next part hierarchy. Next, the scaling process of the component hierarchy 50
04 is shown in FIG. Also in this case, in order to determine whether the scale is fixed by the flag, the scale fixed flag is referred to for the component hierarchy that is the target of the scale changing process.
If the referenced flag is 1, that is, the scale is fixed, the scale change process 5004 of the component hierarchy is not performed. On the contrary, when the referenced flag is 0, that is, when the scale is not fixed, the scale fixed flag is referred to for the projection diagram group hierarchy that is a child of the component hierarchy. If the referenced flag is 1, that is, the scale is fixed, the scale changing process 5104 of the projection diagram group hierarchy is not performed. On the contrary, when the flag referred to is 0, that is, when the scale is not fixed, the scale changing process 51 of the projection diagram group hierarchy is performed.
Execute 04. Next, the scale changing process of the projection diagram group hierarchy 51
04 is shown in FIG. Also in this case, in order to determine whether the scale is fixed by the flag, the scale fixed flag is referred to for the projection diagram group hierarchy that is the target of the scale changing process. If the referenced flag is 1, that is, the scale is fixed, the scale changing process is not performed. On the contrary, when the referenced flag is 0, that is, when the scale is not fixed, scale change processing 2301 of the projection diagram group hierarchy is performed. Further, the component hierarchy scale change command 5912 will be described. When the component hierarchy specifying process 5962 is executed, a component scale changing process 5963 is executed. As described above, the scale change process 5963 of the component hierarchy refers to the scale fixed flag as described above with reference to FIG. 47, and when it is not fixed, the scale change process is performed. As described above, the scale changing process is not performed for the hierarchy whose scale is fixed.

Next, the scale changing process in the case of claims 8 and 18 will be described. FIG. 49 shows the drawing scale change processing 596.
1 was shown. The difference from the inventions of claims 7 and 17 is that the scale fixed flag is not referred to for the drawing hierarchy.
That is, with respect to the hierarchy designated as the scale change, even if the scale is fixed, the process is performed by intentionally changing the scale. In the case of claims 8 and 17, the processing is judged by assuming that the scale is completely fixed, but in the case of claims 8 and 18, when the scale change of the hierarchy with the fixed scale is designated. The processing is performed assuming that the operator intends to change the scale. Further, FIG. 50 shows the component scale change processing 3902. Also in this case, the processing is performed without referring to the scale change flag of the component hierarchy. The same applies to the scale changing process of the projection diagram group hierarchy.

Now, the drawing hierarchy according to the invention of claim 22,
The default scale setting processing in the component hierarchy, the component hierarchy, the default scale reference processing when generating the projection drawing group hierarchy, and the scale reference processing when generating the projection drawing hierarchy will be described.

FIG. 4 shows a block diagram of the invention of claim 22.
Also in the present invention, in order to generate a drawing, a part, and a projection drawing group hierarchy, a hierarchy is created by the drawing hierarchy, parts hierarchy, and projection drawing group hierarchy creating commands 1301, 1302, and 1303 shown in FIG.

The processing when the drawing hierarchy generation command 1301 is input will be described below. A drawing hierarchy default scale is input to the operand of the drawing hierarchy generation command 1301. The drawing default scale is a scale that is the default of the figure drawn in the drawing. FIG. 51 shows the drawing hierarchy generation processing by the drawing hierarchy generation means 102. First, a drawing hierarchy is created by the drawing hierarchy creation / registration processing 4001,
The generated drawing hierarchy data is stored in the in-drawing information storage means 107. Next, the scale setting means 701 performs default scale input processing 4002. When the default scale is input to the operand, this value becomes the default scale of the drawing hierarchy that generated it. On the other hand, when the input of the default scale is omitted, -1, etc., which cannot be used as a scale as a scale unset flag, is input as the scale value. Then, the drawing default scale is stored in the in-drawing information storage means 107 as an attribute of the drawing hierarchy.

Further, the processing when the component hierarchy generation command 1302 is input will be described. A graphic element belonging to the parent drawing hierarchy is input to the first operand of the parts hierarchy generation command 1302, and a parts hierarchy default scale is input to the second operand. FIG. 52 shows the parts hierarchy generating means 1.
2 shows a component hierarchy generation process by 02. First, the layer identifying means 210 performs a drawing layer identifying process 4101. This specifies the drawing hierarchy from the graphic element belonging to the parent drawing hierarchy input to the first operand. Next, a component hierarchy is generated by the component hierarchy generation / registration processing 4102, and the generated component hierarchy data is stored in the in-drawing information storage means 107. Next, the scale setting means 701 performs default scale input processing 4203. When the default scale is input to the second operand, this value is used as the default scale of the generated component hierarchy. On the other hand, when the input of the default scale is omitted, the scale setting means 701 refers to the default scale of the parent drawing hierarchy. If the default scale is set, the set scale is referred to as the default scale of the part hierarchy. Then, the default scale of the component hierarchy is stored in the in-drawing information storage means 107 as an attribute of the component hierarchy.

Furthermore, the projection diagram group hierarchy generation command 130
The processing when 3 is input will be described. In the first operand of the projection diagram group hierarchy generation command 1303, the graphic element belonging to the parent component hierarchy is input, and the projection diagram hierarchy scale is input in the second operand. FIG. 53 shows the projection diagram group hierarchy generation means 10
4 shows a process of generating a projected view group hierarchy according to FIG. First, the layer identifying means 210 performs a component layer identifying process 4201. This specifies the component hierarchy from the graphic element belonging to the parent component hierarchy input to the operand. Next, the projection diagram group hierarchy is created and registered by the projection diagram group hierarchy registration processing 4202,
The generated projection drawing group hierarchical data is the drawing information storage unit 10.
Stored in 7. Next, the scale setting means 701 performs default scale input processing 4203. When the scale is input to the second operand, this value is used as the scale of the generated projection diagram group hierarchy. On the other hand, when the input of the scale is omitted, the scale setting means 701 refers to the default scale of the parent component hierarchy. If the default scale is set and it is not an omitted value such as -1, the set scale is used as the default scale of the generated projection diagram group hierarchy. If the default scale is omitted, a message indicating that the scale cannot be omitted is displayed on the monitor, and the operator is prompted to enter the scale, or 1 is entered as the scale of the projection group hierarchy as a convenient scale. . Then, the generated scale of the projected view group hierarchy is stored in the in-drawing information storage means 107 as an attribute of the projected view group hierarchy. The reason why the scale is not omitted in the projection diagram group hierarchy is that the projection diagram must be drawn with some scale. In addition, since different scales cannot be set for the projection drawings of children in the projection drawing group due to the drafting rules, it is desirable to set the scale of the child projection drawing in the projection drawing group hierarchy.

By the above processing, if the scale input as the operand is omitted when the command for generating the component / projection diagram group hierarchy is input, the scale defined as the attribute of the higher hierarchy is referred to and defined as the scale of the generated hierarchy. To be done. Accordingly, when the user inputs the graphic element generation command 1305 after the scale of the projection view group is set, the projection view group display means 702 displays the graphic element according to the value.

[0103]

According to the present invention, the drawing hierarchy is designated as the hierarchy for changing the scale, and only by designating the scale to be changed and the scaling origin, all drawing elements belonging to the drawing hierarchy are searched and the designated scale is specified. And scaling the graphic element based on the scaling origin. This makes it possible to change all the scales of the figures depicted in the drawing.

Further, the part hierarchy is specified as the hierarchy for changing the scale, and only by specifying the scale and the scaling origin to be changed, all drawing elements belonging to the parts hierarchy are searched, and the figure is drawn based on the specified scale and the scaling origin. Scale the element. This makes it possible to change all the scales of the images representing the products and parts represented by the specified part hierarchy.

Further, the projection drawing group hierarchy is designated as the hierarchy for changing the scale, and only by designating the scale and the scaling origin to be changed, all drawing elements belonging to the projection drawing group are searched, and the designated scale and the scaling origin are specified. Scale the graphic elements based on. As a result, it is possible to change all the scales of the images belonging to the specified projection drawing group.

Further, according to the drawing editing apparatus of the present invention, it is possible to provide a default scale in the designated drawing hierarchy and component hierarchy. This makes it possible to set the default scale of the graphic drawn in the drawing, and to set the default scale of the graphic representing the product or part represented by the component hierarchy. On the other hand, at the time of default setting of the part hierarchy, if the scale value is omitted, the default scale of the drawing hierarchy can be referred to and used as the default scale of the part.
Further, when setting the scale of the projection view group, if the value of the scale is omitted, the default scale of the component hierarchy is referred to and the scale of the projection view group can be used. As a result, a default scale can be set in a unit called an image representing an arbitrary part.

[Brief description of drawings]

FIG. 1 is a block diagram of the invention of claim 1.

FIG. 2 is a block diagram of the invention of claim 2;

FIG. 3 is a block diagram of the invention of claims 9 and 12.

FIG. 4 is a block diagram of the invention of claim 22.

FIG. 5 is a block diagram of a drawing editing apparatus showing an embodiment of the present invention.

FIG. 6 is a three-dimensional perspective view.

FIG. 7 is a block diagram showing an example of a drawing.

FIG. 8 is a block diagram of an example showing registration of a graphic element in a hierarchy.

FIG. 9 is a block diagram showing registration of a graphic element in a hierarchy when there is no projection view hierarchy.

FIG. 10 is a block diagram showing attributes of hierarchies and graphic elements.

FIG. 11 is a PAD showing processing according to command input processing.
Fig.

FIG. 12 is an explanatory diagram of an example of a marker of a layer.

FIG. 13 is an explanatory diagram of an example showing registration of a graphic element including a marker in a hierarchy.

FIG. 14 is a PAD showing processing according to command input processing.
Fig.

FIG. 15 is a PAD diagram showing a drawing scale changing process.

FIG. 16 is a PAD diagram showing a component scale changing process.

FIG. 17 is a PA showing the projection diagram group scale changing process of claim 2;
Figure D.

FIG. 18 is an explanatory diagram showing a scale changing process according to claim 2;

FIG. 19 is an explanatory view showing before execution of a scale change command of the invention of claim 2;

FIG. 20 is an explanatory view showing after the drawing scale change command of the invention of claim 2 is executed.

FIG. 21 is an explanatory diagram showing a state after the part scale change command of the invention of claim 2 is executed.

FIG. 22 is an explanatory diagram showing a state after the projection diagram group scale changing command of the invention of claim 2 is executed.

FIG. 23 is an explanatory diagram showing a scale changing process according to claim 1;

FIG. 24 is a PA showing the projection diagram group scale changing process of claim 1;
Figure D.

FIG. 25 is a PAD diagram showing the contents of a projection group scaling origin storage process.

FIG. 26 is an explanatory view showing before execution of a scale change command of the invention of claim 1;

FIG. 27 is an explanatory view showing after the drawing scale change command of the invention of claim 1 is executed.

FIG. 28 is an explanatory diagram showing a state after the part scale change command of the invention of claim 1 is executed.

FIG. 29 is an explanatory diagram showing a state after the projection diagram group scale changing command of the invention of claim 1 is executed.

FIG. 30 is an explanatory diagram of a projection drawing scaling origin provided in a three-dimensional space.

FIG. 31 is an explanatory view of a projection drawing scaling origin provided in the drawing.

FIG. 32 is a PAD diagram showing the contents of projection drawing scaling origin storage processing.

FIG. 33 is a PAD diagram showing a projection diagram group scale changing process according to the invention of claim 9;

FIG. 34 is an explanatory diagram of the drawing showing the scale changing process of claim 9;

FIG. 35 is a PAD diagram showing a projection diagram scale changing process according to the invention of claim 9;

FIG. 36 is an explanatory diagram showing before execution of a scale change command of the invention of claim 9;

FIG. 37 is an explanatory diagram showing a state after the drawing scale change command of the invention of claim 9 is executed.

FIG. 38 is an explanatory diagram showing the state after executing the parts scale change command of the invention of claim 9;

FIG. 39 is an explanatory diagram showing a state after the projection diagram group scale changing command of the invention of claim 9 is executed.

FIG. 40 is a PAD diagram showing a projection diagram group scale changing process according to the invention of claim 11;

FIG. 41 is a PAD diagram showing projection drawing scale changing processing of the invention of claim 11;

FIG. 42 is an explanatory view of the drawing showing the scale changing process of claim 11;

FIG. 43 is a PAD diagram showing a projection diagram group scale changing process according to the invention of claim 14;

FIG. 44 is a PAD diagram showing a projection diagram scale changing process of the invention of claim 14;

FIG. 45 is an explanatory diagram showing a scale changing process according to claim 14;

FIG. 46 is a P showing the drawing scale change processing of claims 6 and 17;
AD diagram.

FIG. 47 is a P showing the parts scale change processing of claims 6 and 17;
AD diagram.

FIG. 48 is a PAD diagram showing a projection diagram group scale changing process according to claims 6 and 17;

FIG. 49 is a P showing the drawing scale change processing of claims 7 and 18;
AD diagram.

FIG. 50 is a P showing the parts scale change processing of claims 7 and 18;
AD diagram.

FIG. 51 is a PAD showing a drawing default scale setting process.
Fig.

FIG. 52 is a PAD showing a part default scale setting process.
Fig.

FIG. 53 is a PA showing a projection map group default scale setting process.
Figure D.

[Explanation of symbols]

106 ... Projection diagram group scale updating means, 107 ... Drawing information storage means, 108 ... Projection diagram group searching means, 109 ... Projection diagram group displaying means, 110 ... Projection diagram group scaling origin updating means, 205 ... Instruction input means, 210 ... Hierarchical identification means.

Claims (22)

[Claims] 1. A drawing editing apparatus having a function of generating and editing graphic data relating to a two-dimensional graphic element, wherein a projection drawing group hierarchy representing one or more projection drawings on which a solid is drawn, and a projection drawing group hierarchy. The upper layer, which is a component layer representing the image drawn for one solid, and the layer management data of the layer which is the upper layer of the component layer and which represents the entire drawing, and the graphic element are assigned to the projection drawing group. The in-drawing information storage means for storing the graphic element belonging data, the scaling origin for each projection drawing group, and the scale data for each projection drawing group, the hierarchy specifying means for specifying the hierarchy to be operated, and the scale change value An instruction input unit for inputting, a projection drawing group searching unit for searching a projection drawing group hierarchy according to the specified hierarchy from the hierarchy data stored in the in-drawing information storage unit, and the searched projection drawing group Scale To the input scale, and a figure belonging to the projection group based on the scale of the projection group for each projection group and the scaling origin for the retrieved projection groups. A drawing editing apparatus comprising: a projection drawing group display means for outputting a result of scaling an element as a drawing. 2. A drawing editing device having a function of generating and editing graphic data relating to a two-dimensional graphic element, wherein a projection view hierarchy for registering a graphic element representing a projection view and an upper hierarchy of the projection view group hierarchy. In addition, a projection diagram group hierarchy representing one or more projection diagrams on which a solid is drawn, a component hierarchy that is a higher hierarchy of the projection diagram group hierarchy and represents a figure drawn on one solid, and a component hierarchy. Hierarchical management data of a drawing hierarchy that represents the entire drawing, upper-layer hierarchy data, graphic element belonging data that makes a graphic element belong to a projection drawing group, and a scaling origin arbitrarily set in the three-dimensional space in which the solid exists, A scaling origin of the projection drawing projected on the projection drawing according to the projection direction of the projection drawing, a scaling origin for each projection drawing group, an in-drawing information storage unit that stores scale data, and a hierarchy of an operation target are specified. Projection drawing search means for searching the projection drawing hierarchy according to the specified hierarchy from the hierarchy specifying means for setting, the instruction inputting means for inputting the changed value of the scale, and the hierarchy data stored in the in-drawing information storage means. And a projection diagram group scale updating means for changing the scale of a projection diagram group higher than the retrieved projection diagram hierarchy to the input scale.
Regarding the retrieved projection views, a projection view display that outputs the result of scaling the graphic elements belonging to the projection view as a drawing based on the scale of the projection view group hierarchy higher than the projection view hierarchy and the scaling origin of the projection view And a drawing editing device. 3. The drawing editing apparatus according to claim 1 or 2, wherein the drawing editing device determines a coordinate input means for inputting coordinate points and a scaling origin of the retrieved projection drawing group based on at least the input coordinate points. A drawing editing apparatus having projection drawing group scaling origin updating means for updating by the method described in 1. 4. The projection origin scaling origin updating means according to claim 2 or 3, wherein the scaling origin of the retrieved projection assembly is input so that the graphic element is scaled around the input coordinate point. Based on the coordinate points, the input scale, and the scale before the change,
A drawing editing device that changes the scaling origin of a projection drawing group. 5. The drawing editing apparatus according to claim 1, wherein the projection diagram group searching means searches for a projection diagram group hierarchy lower than the specified hierarchy. 6. The drawing editing apparatus according to claim 2, wherein the projection drawing group scaling origin updating means stores the coordinate point input from the coordinate input means in the drawing information storage means as the projection drawing group scaling origin. . 7. The graphic editing device according to claim 1, further comprising scale fixed layer storage means for storing data defining a scale fixed layer, and the projection drawing group retrieval means storing in-drawing information storage. From the hierarchy management data stored in the means, except the projection drawing group hierarchy below the scale fixed hierarchy stored in the scale fixed hierarchy storage means, search the projection view group hierarchy below the hierarchy specified by the hierarchy specifying means. Drawing editing device. 8. The graphic editing apparatus according to claim 1, further comprising scale fixed layer storage means for storing data defining a scale fixed layer, and the projection diagram group search means storing in-drawing information storage. According to the hierarchy management data stored in the means, the hierarchy specified by the hierarchy specifying means is not fixed in scale, except for the projection group groups below the scale fixed hierarchy stored in the scale fixed hierarchy storage means. A drawing editing apparatus, which searches a projection drawing group hierarchy below a hierarchy specified by the hierarchy specifying means. 9. The drawing editing apparatus according to claim 1 or 3, comprising: projection drawing group hierarchy, parts hierarchy, hierarchy management data of drawing hierarchy, and graphic element affiliation data for assigning a graphic element to the projection drawing group. A drawing editing device having means for creating and editing management data. 10. A drawing editing apparatus having a function of generating and editing graphic data relating to a two-dimensional graphic element, which is a projection view hierarchy for registering a graphic element representing a projection view and an upper hierarchy of the projection view group hierarchy. , A projection diagram group hierarchy representing one or more projection views on which a solid is drawn, a higher hierarchy of the projection view group hierarchy, which is a component hierarchy representing the image created for one solid, and a higher hierarchy of the component hierarchy. The hierarchical management data of the drawing hierarchy representing the entire drawing, the graphic element belonging data for making the graphic elements belong to the projection drawing group, and the scaling origin arbitrarily set in the three-dimensional space in which the solid exists In-drawing information storage means for storing the scaling origin of the projection drawing projected on the projection drawing according to the projection direction of the drawing and scale data for each projection drawing group, and hierarchy specifying means for specifying the hierarchy of the operation target An instruction input means for inputting a change value of the scale; a projection drawing search means for searching a projection drawing hierarchy according to the specified hierarchy from the hierarchy data stored in the in-drawing information storage means; The projection diagram group scale updating means for changing the scale of the projection diagram group hierarchy higher than the projection diagram hierarchy to the input scale and the projection diagram group hierarchy higher than the projection diagram hierarchy for the retrieved projection diagram. Scale and
A drawing editing device, comprising: a projection drawing display means for outputting a result of scaling a graphic element belonging to the projection drawing as a drawing based on a scaling origin of the projection drawing. 11. The drawing editing apparatus according to claim 2 or 10, wherein the drawing input device sets a coordinate input means for inputting coordinate points and a scaling origin of the retrieved projection drawing at least based on the input coordinate points. A drawing editing apparatus having projection drawing scaling origin updating means for updating by a method. 12. The projection drawing scaling origin updating means according to claim 11, wherein the scaling origin of the retrieved projection drawing and the input coordinates are arranged so that the graphic element is scaled around the input coordinate point. A drawing editing device that changes a scaling origin of a projection drawing group based on a point, the input scale, and the scale before the change of the projection drawing group hierarchy of the retrieved projection drawing. 13. The drawing editing apparatus according to claim 2, further comprising projection drawing scaling origin updating means for updating a scaling origin of the retrieved projection drawing by a predetermined method based on at least the input coordinate points. Drawing editing device. 14. The projected view scaling origin updating means according to claim 13, wherein the retrieved projections are arranged such that graphic elements are scaled around a scaling origin of a higher projected view group hierarchy of the retrieved projection views. The scaling origin of the projection drawing is changed based on the scaling origin of the drawing, the scaling origin of the projection drawing group, the input scale, and the scale before the change of the hierarchy of the projection projection group higher than the retrieved projection view. Drawing editing device. 15. The drawing editing device according to claim 2, 10 or 11, wherein the projection drawing search means searches for a projection drawing hierarchy lower than the specified hierarchy. 16. The drawing editing apparatus according to claim 2, wherein the projection drawing scaling origin updating means stores the coordinate point input from the coordinate input means in the drawing information storage means as a projection drawing scaling origin. 17. The scale editing apparatus according to claim 2, 10 or 11, wherein said graphic editing apparatus has a scale fixed hierarchy storage means for storing data defining one of a drawing, a part and a projection drawing group. The projection drawing search means excludes the projection drawing hierarchy below the scale fixed hierarchy stored in the scale fixed hierarchy storage means from the hierarchy management data stored in the in-drawing information storage means, and the hierarchy specified by the hierarchy specifying means A drawing editing device that searches the following projection drawing hierarchy. 18. The graphic editing apparatus according to claim 2, further comprising scale fixed hierarchy storage means for storing data defining any hierarchy among a group of drawings, parts, and projection drawings. The projection drawing search means determines that the scale specified by the hierarchy specifying means is not fixed based on the hierarchy management data stored in the in-drawing information storage means and that the scale fixed in the scale fixed hierarchy storage means is fixed. A drawing editing apparatus which searches for a projection drawing hierarchy below the hierarchy specified by the hierarchy specifying means, except for the projection drawing hierarchy below the hierarchy. 19. The scale editing apparatus according to claim 1, 2, 3, 10 or 11, further comprising: scale fixed layer specifying means for inputting a scale fixed layer; and data defining the inputted scale fixed layer. A drawing editing apparatus having a scale fixed layer storage means for storing the scale fixed layer storage means. 20. The projection drawing hierarchy, the projection drawing group hierarchy, the parts hierarchy, the hierarchy management data of the drawing hierarchy, and the graphic element affiliation that causes the graphic element to belong to the projection drawing group according to claim 2, 10 or 11. A drawing editing apparatus having means for creating and editing data. 21. In claim 1, 2, 3, 10 or 11, when the graphic element belonging to a hierarchy and the type of hierarchy are inputted, the inputted graphic element belongs to the hierarchy specifying device,
A drawing editing apparatus that searches the in-drawing information storage unit for a specified type of hierarchy and identifies the searched hierarchy as an operation target hierarchy. 22. In a drawing editing apparatus having a function of generating and editing graphic data relating to a two-dimensional graphic element, projection drawing group hierarchical data for registering graphic elements representing one or more projection drawings on which a solid is drawn. Projection diagram group hierarchy generating means for generating, component hierarchy generating means for generating component hierarchy data which is a higher hierarchy of the projection diagram group hierarchy and which registers a graphic element representing a figure drawn for one solid, and a component hierarchy Which is the upper hierarchy of the drawing, the drawing hierarchy generation means for generating the drawing hierarchy data for registering the graphic element in the drawing, the hierarchy specifying means for inputting the hierarchy to be operated, and the default for the hierarchy below it according to the operator's instruction. Scale setting means for setting the default scale data for each layer by inheriting the default scale data of each layer or the upper layer, graphic element data, and projection drawing group Hierarchical data, part hierarchical data, drawing hierarchical data, in-drawing information storage means for storing default scale data, default scale data of the projection diagram group hierarchy, and the scaling origin, based on the figure elements belonging to the projection diagram group. A drawing editing apparatus comprising: a projected view group display means for displaying.