JP4071420B2 - CAD system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a CAD system for setting and managing attributes of a plurality of layers for creating graphic elements.
[0002]
[Prior art]
Generally, when drawing with a CAD system, graphic elements such as points, lines, arcs, characters, and dimension lines are called and placed at predetermined positions on the display, and processing such as enlargement, reduction, movement, and copying is performed. By doing so, a plurality of graphic elements are combined to create a desired drawing. In this case, attributes such as color, line type, and character size are given to each graphic element, and by selecting this attribute according to the usage, even if the same graphic element is displayed, A wide variety of drawings can be created.
[0003]
On the other hand, as one of conventionally known CAD systems, there is one that includes a plurality of layers and creates a drawing by arranging graphic elements for each layer. In such a CAD system having a plurality of layers, drawings in various modes are displayed by selecting and displaying desired layers in a state where the drawings are created independently for each layer. . In such a CAD system having a plurality of layers, since drawing is performed independently for each layer, a function for setting an attribute different from the other layers for the graphic elements processed in each layer is also provided. Have. That is, even for the same graphic element, its attributes (for example, line type, color, etc.) can be different if the layers are different.
[0004]
[Problems to be solved by the invention]
However, in the CAD system having the function of setting the attribute for each layer as described above, the attribute must be changed for each layer even when the attribute item common to all layers is changed. . For example, if the graphic element is a character and you want to change the character size and typeface used in all layers, call the layer one by one and change the character size and typeface for each layer. Was necessary.
Recently, it has also been proposed to connect a plurality of CAD systems using a network and share the drawing work in each CAD system. However, in such a plurality of CAD systems, graphic elements and layers are proposed. When setting attributes for, you must set the layer attribute items one by one, even though the settings are the same as the layer attributes used in other layers and CAD systems. did not become.
[0005]
The present invention has been proposed in order to solve the above-described problems of the prior art. The purpose of the present invention is not to set attributes common to all layers for each layer, and has already been set. The attribute of the layer is to provide a CAD system that can be used in another layer or CAD system as it is.
[0006]
[Means for Solving the Problems]
To achieve the above object, the drawings the invention according to claim 1, in a CAD system having a plurality of layers for drawing graphical elements in a CAD system having a plurality of layers for drawing graphical elements, created A drawing saving file for storing graphic elements, a graphic element file for storing graphic elements, an attribute file for storing information relating to attributes, and attribute processing means for assigning, changing, deleting, and copying attributes to graphic elements, drawings, and layers; In the attribute file, an attribute file for each purpose for storing the attributes suitable for the purpose of the drawing to be created is provided, and the attribute file for each purpose is provided for each layer according to the purpose of the drawing to be created. A common attribute file that stores common attributes that are set in common and a layer-specific attribute file that stores attributes set for each layer Vignetting, the said attribute processing means, characterized in that by application layer attribute setting means for setting the application-specific attributes for each common attribute file and layer-specific attribute file is provided.
In the invention according to claim 1, since it is possible to set both attributes common to all layers and attributes unique to each layer, all items common to all layers can be set as common attributes. Since it can be used in all layers, it is not necessary to perform the same setting for each layer, so that the layer attribute can be set efficiently. In addition, there are layer attributes for each drafting application, and attributes such as color, line type, and character size can be set according to each application, so when drawing a new specific drawing, existing layer attributes Can be used as is.
[0007]
According to a second aspect of the present invention, in the first aspect of the invention, a name setting unit for each layer that sets a name for the layer attribute, and a name recording unit for storing the layer attribute with the set name A layer-specific attribute file.
In the invention according to claim 2, by having an area for setting a name suitable for the application in the unique attribute of each layer, the layer attribute can be recognized by the name, or the layer attribute can be stored by the name. Therefore, the use of the layer attribute can be clarified from the name.
[0008]
The invention according to claim 3 is the invention according to claim 2, in order to identify the layer attribute display means for displaying the name and the attribute set for each layer, and the name and attribute of the layer to be displayed by the keyword. Display condition setting means.
In the invention according to the third aspect, only the attribute information having a specific condition can be displayed by searching using a keyword, so that only necessary layer attributes can be displayed.
[0010]
According to a fourth aspect of the present invention, in the first aspect of the invention, means for storing attributes set for each of a plurality of layers in a storage medium connected via a network, and a plurality of CAD systems connected to the network To the attribute stored in the storage medium. In the invention according to claim 4 , since the common attribute of all the layers stored in the storage medium and the attribute for each layer are connected by a network and the attribute can be referred to from a plurality of CAD systems, each CAD It is not necessary to set the same layer attribute for each system, and the layer attribute environment to be used can be unified.
[0011]
The invention according to claim 5 is the invention according to claim 1, wherein a part or all of the attributes of the graphic elements set for each layer are collectively copied to another layer or another CAD system. It has the means to move, It is characterized by the above-mentioned. In the invention according to claim 5 , since the attributes for each layer are stored, and all or some of the items for each layer can be copied between layers or between other CAD systems. Even if you do not set, you can use other layer settings.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
(1) First Embodiment Hereinafter, a CAD system according to a first embodiment of the present invention will be described in detail with reference to FIGS.
FIG. 1 is a block diagram showing a basic configuration of a CAD system according to the present embodiment.
In FIG. 1, 1 is a keyboard, 2 is a pointing device such as a mouse and a tablet, 3 is a display, 4 is a printer, and these are used to input data and commands to the CAD system and to output a drawing 1 shows an example of an input / output terminal device for performing the above. These input / output terminal devices are connected to a data processing device including a CPU and a main memory of a computer via an input / output interface 5. On this data processing device, a plotting processing unit 6 constituting the software part of the CAD system is mounted.
[0013]
The drawing processing unit 6 includes drawing editing means 7 for creating a drawing by performing processing such as generation, editing, deletion, and copying of graphic elements, and display, printing, and drawing of the created drawing and menu screen. Drawing input / output means 8 for saving, calling saved drawings, etc., layer management means 9 for processing such as layer generation, switching, deletion, copying, graphic elements, drawings, layers, etc. And attribute processing means 10 for assigning, changing, deleting, copying, and the like.
[0014]
An external storage device is connected to the data processing apparatus equipped with the drawing processing unit 6, and on this external storage device, a drawing saving file 11 for storing the created drawing, a point, a line, an arc, A graphic element file 12 storing graphic elements such as characters and dimension lines, and an attribute file 13 storing information related to attributes are provided.
[0015]
As shown in FIG. 2, the CAD system of the present embodiment having the basic configuration as described above includes a plurality of layers 0 to n managed by the layer management means 9 and accesses each layer. A layer-specific attribute setting unit 101 that can perform the same operation and a common attribute setting unit 102 that sets a common attribute for all layers are provided. The layer-specific attribute setting unit 101 and the common attribute setting unit 102 constitute a part of the attribute processing unit 10 in FIG. In addition, the attribute file 13 in FIG. 1 includes a layer-specific attribute file 131 that records attributes set for each layer and a layer common attribute file 132 that records attributes common to all layers. Is provided.
[0016]
In this case, the attribute recorded in each attribute file is a graphic element or a drawing that is a set thereof (including the entire drawing on the layer or a part that is a part of the drawing) or a layer that displays the graphic element or drawing. For example, it includes data such as color, line type, and character size suitable for the use such as graphic elements, and data such as the type and name of drawings and layers. In addition, a unique code number for associating the attribute and the graphic element for setting the attribute is given as an example. This code number is stored in the attribute file 13 in the corresponding data. The same number is assigned to each of the corresponding graphic elements at the same time as being stored together with the attribute data in the place.
[0017]
In the present embodiment having such a configuration, when drawing is performed on each layer, attributes are set using the layer-specific attribute setting unit 101 for the graphic elements displayed on the layer. For example, when a line is drawn on the layer 1 as a graphic element, the line thickness and line type (solid line, broken line, etc.) are set as attributes relating to the line. The attributes set for each graphic element on each layer in this way are recorded in the layer-specific attribute file 131, and when a predetermined layer is called and a drawing is displayed thereon, it corresponds to that layer. By calling the attribute recorded in the layer-specific attribute file 131, the set attribute can be given to each graphic element on the layer.
[0018]
On the other hand, in the state of FIG. 2, when setting common attributes for a plurality of layers, the common attribute setting unit 102 is used to set common attributes for the graphic elements on each layer by a single operation. Or an attribute for displaying the characteristics of the layer itself is set for each layer. For example, the common attribute setting unit 102 can set the attributes used when the types and sizes of characters used in all layers are unified or when grids and dimension lines are displayed in all layers. Attributes common to all layers set in this way are recorded in the common attribute file 132, and the contents of the common attribute file 132 are referred to when individual layers are called or all layers are called. Applied to the display of graphical elements and layers on the layer.
[0019]
As described above, according to the present embodiment, since it is possible to set both the attributes common to all layers and the unique attributes of each layer, the common attribute setting means 102 is used for items of attributes common to all layers. Since it can be applied to all layers by simply using and recording in the common attribute file 132, it is not necessary to set the same attribute for each layer, and the layer attribute can be set efficiently. it can.
[0020]
(2) Second Embodiment Next, a second embodiment of the CAD system according to the present invention will be described with reference to FIG. As shown in FIG. 3, the present embodiment is characterized in that layer-specific name setting means 103 is provided in addition to the configuration of the first embodiment. This layer-specific name setting means 103 constitutes a part of the attribute processing means 10 in FIG. The layer-specific attribute file 131 in the first embodiment is provided with a name recording unit 133 as an area for storing the file name.
[0021]
In the present embodiment having such a configuration, it is possible to set a name suitable for the application to the unique attribute of each layer using the layer-specific name setting unit 103, and recognize the layer attribute by the name, Can save layer attributes. For example, the state before moving the machine part is drawn on the first layer, and for this layer, the attribute of setting all lines as solid lines is set, and the state after moving the same part on the second layer Is drawn, and for this layer, when the attribute that all the lines are shown as alternate long and short dash lines (virtual lines) is set, the attribute of the first layer is “before moving” and the attribute of the second layer is “moving” By setting a name such as “after”, the use of the layer attribute can be clarified from the name.
[0022]
(3) Third Embodiment Next, a third embodiment of the CAD system according to the present invention will be described with reference to FIG. In the present embodiment, the attribute file 13 is provided with an element attribute file 134 in addition to the layer-specific attribute file 131 and the common attribute file 132. Further, the attribute processing means 10 is provided with element attribute setting means 104 for assigning attributes to each graphic element such as a point, line, arc, character, dimension line, etc. constituting the drawing in each layer. Yes.
[0023]
In this embodiment having such a configuration, the element attribute setting unit 104 assigns an attribute to the graphic element on the layer separately from the attribute to be given to the entire layer, and saves the attribute in the element attribute file 134. I can keep it. As a result, by having a layer attribute and an element attribute separately, even if the layer attribute is changed, it can be used as an attribute setting for a newly created element without changing the existing element attribute. Elements with different parts can be created in the same layer.
[0024]
(4) Fourth Embodiment Next, a CAD system according to a fourth embodiment of the present invention will be described with reference to FIG.
In the present embodiment, for each of a plurality of layers 0 to n for drawing elements such as points, lines, arcs, characters, and dimension lines constituting the drawing, the attribute for each type of component created on each layer The component-specific attribute setting unit 105 for setting the component and the type-specific layer attribute file 135 for storing the component-specific attribute set by the component-specific attribute setting unit 105. The type layer attribute file 135 includes, for example, files such as a part A attribute file 1351, a paper frame attribute file 1352, and a dimension attribute file 1353 corresponding to the parts on each layer. .
[0025]
In this embodiment having such a configuration, layer attributes can be saved for each type of part to be created, such as a part A attribute file 1351, a paper frame attribute file 1352, and a dimension attribute file 1353. By setting attributes such as color, line type, and character size suitable for each application for each layer, when creating a new specific part, the existing layer attributes can be used as they are. .
[0026]
(5) Fifth Embodiment Next, a fifth embodiment of the CAD system according to the present invention will be described with reference to FIG.
In the present embodiment, a usage-specific attribute file 136 is provided in the attribute file 13 shown in FIG. The attribute file 136 for each use stores, for example, attributes suitable for the purpose of the drawing to be created, such as a building attribute file 1361 and a machine attribute file 1362. Therefore, each attribute file for each purpose includes a common attribute file 132 that stores common attributes that are commonly set for each layer according to the purpose of the drawing to be created, and a layer-specific attribute file that stores attributes set for each layer. 131 is provided. The attribute processing unit 10 is provided with a use-specific layer attribute setting unit 106 for setting these application-specific attributes.
[0027]
In this embodiment having such a configuration, there are layer attributes for each purpose of drafting, such as for architecture or machinery, and attributes such as color, line type, and character size are set according to each application. Therefore, when drawing a new specific drawing, the existing layer attribute can be used as it is.
[0028]
(6) Sixth Embodiment Next, a sixth embodiment of the CAD system according to the present invention will be described with reference to FIG.
In the present embodiment, in the attribute processing means 10, a layer attribute display means 107 for displaying an arbitrary name given to each layer and a set attribute, and a layer name and attribute to be displayed by a keyword are specified. Display condition setting means 108 is provided.
[0029]
In the present embodiment having such a configuration, the layer display condition setting unit 108 can display only information on attributes having a specific condition, so that only necessary layer attributes can be displayed. For example, FIG. 7 shows an example in which only the layer number between 8 and 100 and the layer attribute name with “diagram” is displayed.
[0030]
(7) Seventh Embodiment Next, a CAD system according to a seventh embodiment of the present invention will be described with reference to FIG.
In this embodiment, a plurality of CAD systems 151 to 15n are connected to the network 14, and various files described in the above embodiments (for example, the common attribute file 132 and the layer attribute file 131 of the first embodiment) are used. The stored attribute file 13 is connected to the network 14 so that it can be commonly accessed from the CAD systems 151 to 15n.
[0031]
In the present embodiment having such a configuration, the common attribute file 132 of all layers in the attribute file 13 and the attribute file 131 for each layer are connected by a network or the like, and the attributes are referred to from a plurality of CAD systems 151 to 15n. Therefore, it is not necessary to set the same layer attribute for each CAD system, and the environment of the layer attribute to be used can be unified.
[0032]
(8) Eighth Embodiment Next, an eighth embodiment of a CAD system according to the present invention will be described with reference to FIG.
In the present embodiment, a plurality of layers 1 to n for drawing elements such as points, lines, arcs, characters, and dimension lines constituting the drawing, and a layer-specific attribute file 131 that records attributes for each layer, Inter-layer attribute copying / moving means for accessing this layer-specific attribute file 131 and copying or moving part or all of the attributes of the elements constituting the drawing set for each layer to other layers at once. 109.
[0033]
In the present embodiment having such a configuration, the attribute for each layer is stored in the attribute file 131 for each layer, and this is operated by the inter-layer attribute copy moving means 109, so that all the attributes for each layer or Some items can be copied between layers, and all attributes can be copied and moved directly between layers, so you can set other layers without setting new layer attributes. Can be used.
[0034]
(9) Ninth Embodiment Next, a CAD system according to a ninth embodiment of the present invention will be described with reference to FIG.
In the present embodiment, in the embodiment in which a plurality of CAD systems 151 to 15n are connected to the network 14 of FIG. 8, the attribute file 13 includes a first attribute file 13A used in a predetermined one or a plurality of CAD systems. The second attribute file 13B used in one or more other CAD systems is provided. In this case, a large number of attribute files may be provided according to the number of CAD systems, and the same attribute file can be used in common by a plurality of CAD systems. What is important here is that a plurality of types of files exist in the attribute file 13. In this embodiment, each of the plurality of types of attribute files is accessed, and some or all of the attributes of the elements constituting the drawing set for each layer in each attribute file are displayed. An inter-system attribute copying / moving means 110 for copying or moving to a layer of another CAD system in a lump is provided.
[0035]
In the present embodiment having such a configuration, for example, the attribute for each layer is stored in the first attribute file 13A, and this is stored in the second attribute file 13B using the inter-system attribute copy moving means 110. All or some of the attributes for each layer can be copied between CAD systems, such as copying, and the attributes for each layer can be copied and moved directly from a CAD system to another CAD system. Therefore, it is possible to use a layer setting of another existing CAD system without setting a new layer attribute.
[0036]
【The invention's effect】
As described above, according to the present invention, since there is a layer attribute for each purpose of drafting and an attribute suitable for each application can be set, when a new specific drawing is drawn, a layer that already exists Attributes can be used as they are.
[Brief description of the drawings]
FIG. 1 is a block diagram showing the overall configuration of a CAD system according to the present invention.
FIG. 2 is a block diagram showing a CAD system for setting common attributes according to the first embodiment of the present invention.
FIG. 3 is a block diagram of a CAD system for setting names in layer attributes according to the second embodiment of the present invention.
FIG. 4 is a block diagram of a CAD system that sets attributes for graphic elements in a layer according to a third embodiment of the present invention.
FIG. 5 is a block diagram of a CAD system for setting a component-specific layer attribute according to a fourth embodiment of the present invention.
FIG. 6 is a block diagram of a CAD system for setting use-specific layer attributes according to a fifth embodiment of the present invention.
FIG. 7 is a block diagram of a CAD system having layer display condition setting means according to a sixth embodiment of the present invention.
FIG. 8 is a block diagram of a CAD system having a function of referring to an attribute file from another CAD system according to a seventh embodiment of the present invention.
FIG. 9 is a block diagram of a CAD system having a function of copying and moving layer attributes to another layer according to an eighth embodiment of the present invention.
FIG. 10 is a block diagram of a CAD system having a function of copying and moving layer attributes to another CAD system according to the ninth embodiment of the present invention.
[Explanation of symbols]
1 ... Keyboard,
2 ... pointing device,
3. Display,
4 ... Attribute file,
5 ... I / O interface,
6 ... Drawing processor
7: Drawing editing means,
8. Drawing input / output means,
9: Layer management means,
10 ... attribute processing means,
11 ... Drawing save file,
12 ... graphic element file,
13 ... Attribute file,
14 ... Network,
101: Layer-specific attribute setting means,
102: Common attribute setting means,
103 ... name setting means by layer,
104: Element attribute assigning means,
105. Component-specific attribute setting means,
106: Application-specific layer attribute setting means,
107: Layer attribute display means,
108: Display condition setting means,
109 ... Inter-layer attribute copy moving means,
110 ... Inter-system attribute copy transfer means,
131: Layer-specific attribute file,
132 ... layer common attribute file,
133 ... name recording part,
134 ... element attribute file,
135 ... Layer attribute file by type,
136 ... attribute file according to use,
1361: Architectural attribute file,
1362: Machine attribute file,

Claims (5)

In a CAD system having a plurality of layers for drawing graphic elements,
Assign, change, delete, and copy attributes to graphic elements, drawings, and layers, drawing save files that store created drawings, graphic element files that store graphic elements, attribute files that store information about attributes Attribute processing means,
In the attribute file, there is provided an attribute file for each purpose for storing attributes suitable for the purpose of the drawing to be created.
This usage-specific attribute file includes a common attribute file that stores common attributes that are commonly set for each layer according to the purpose of the drawing to be created, and a layer-specific attribute file that stores attributes set for each layer. Provided,
The CAD system according to claim 1, wherein the attribute processing means is provided with usage-specific layer attribute setting means for setting attributes according to usage for each common attribute file and layer-specific attribute file .   The layer-specific attribute file having a name-specific setting unit for setting a name for the layer attribute and a name recording unit for storing the attribute of the layer with the set name is provided. The CAD system described.   3. The display device according to claim 2, further comprising: layer attribute display means for displaying a name set for each layer and set attributes; and a display condition setting means for specifying the name and attribute of the layer to be displayed by a keyword. CAD system.   A plurality of CAD systems connected to the network, and an attribute file connected to the network and accessible from each of the plurality of CAD systems, and a layer-specific attribute file and a common attribute file are provided in this attribute file The CAD system according to claim 1, wherein:   2. An attribute copy moving means for copying or moving part or all of the attributes of graphic elements set for each layer to another layer or another CAD system in a lump. The CAD system described.

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