JPS63285675A - Graphic processing system - Google Patents

Abstract

PURPOSE:To facilitate the application of a high-level graphic operation by providing each necessary object to the class objects including the graphic objects and the space relation objects and preparing the corresponding graphic operating procedures, etc., to those objects respectively. CONSTITUTION:An interface processing part 13 produces a desired window object 12 by the command information given from an input device 2 and uses this object 12 to execute the subsequent graphic operating instructions. Thus the graphic objects 10 and the space relation objects 11 are produced as desired. A graphic corresponding to the produced object 10 is displayed on a display device 3 as a composite graphic subject to the object 11 via the object 12. The object 12 identifies the indications of a cursor, etc., with respect to a displayed basic graphic and composite graphic based on the relative positions with areas and carries out a designating operation decided by an object to display this executing result on a display screen. Thus a high-level pattern processing system is obtained.

Description

[Detailed Description of the Invention] [Summary] This is a graphic processing system that is advanced by an object-oriented system.

When displaying and processing a drawing that combines basic figures and text information, a graphic object that defines the shape, arrangement, area, and operation of the basic figure, and a graphic element and area for the composite figure is defined. A window object that displays a graphic and holds correspondence information between the displayed graphic, spatially related objects, and graphical objects, and objects that correspond to graphical elements specified on the screen are identified by area. Then, a window object is provided to notify these objects of graphic operation instructions.

With this configuration, a system is obtained in which it is easy to recognize and manipulate a composite figure in which graphic elements are related.

[Industrial application field]

The present invention relates to a graphics processing system for an object-oriented information processing system, and more particularly to a graphics processing system that facilitates handling of complex graphics containing character information and manipulation of the graphics.

[Prior art and problems to be solved by the invention] FIG. 5 is a block diagram showing an example of the configuration of an information processing system.

The processing device 1 executes a program loaded into the memory, exchanges information with the input device 2 and display device 3 of the terminal, and performs specified processing based on command information input from the input device 2.

The input device 2 is, for example, a keyboard, and the display device 3 is, for example, a C.
It consists of an RT display device.

For example, computer-aided design in circuit design,
In an information processing system that handles figures, such as for so-called CAD, a user inputs necessary commands from an input device 2 to specify, for example, the type, shape, position, etc. of a figure on the display screen of a display device 3. A graphics processing system 4 executed by the processing device 1 interprets the command, sequentially displays specified graphics on the screen of the display device 3, and processes updates of the displayed graphics.

In this way, for example, figures constituting one drawing are generated, but in general, drawings include letters, numbers, symbols, etc. such as names, dimensions, explanations, etc. (in the following, these are collectively referred to as This information is also input sequentially and displayed at a position specified by a cursor on the screen, for example.

The figure data in the drawing data includes the figure type and its shape in the drawing for each basic figure that corresponds to the type of basic figures prepared by the system, such as straight lines, various polygons, circles, arcs, etc. It consists of the position of the figure's reference point, the specified value of the shape, and other specifications such as line type, area filling, etc.
Separately, the character information data consists of, for example, a code string to be superimposed on the drawing represented by the graphic data.

The above-mentioned drawing data is simply a collection of individual basic figures and character information data, and the basic figures or their combinations have meanings that indicate the correspondence with the real thing represented, and such figures It is difficult to express the relationship between the required character ↑ and the blue report, and therefore we need an advanced figure processing system that can recognize them as a complex figure and support figure operations according to the object represented by the figure. The problem is that it cannot be configured.

[Means for solving problems]

FIG. 1 is a block diagram showing the configuration of the present invention.

The figure shows the configuration of an information processing system, where 10 is a graphical object having data on the basic figure, arrangement and area data, figure operation procedures, etc. for each basic figure, 11 is a figure object that defines the configuration of a compound figure, and the area of the compound figure. 12 is a window object that displays a graphic and recognizes the correspondence between the displayed graphic, the graphic object, and the spatial relationship object.

[Operation] The interface processing unit 13 generates the required window object 12 according to the command information from the input device 2,
By executing subsequent graphic operation instructions using the window object 12, the desired graphic object 1 is
0 and spatial relation object 11 are generated.

A graphic corresponding to the generated graphical object 10 is displayed on the display device 3 by the window object 12 as a composite graphic according to the spatial relationship object 11.

The window object 12 identifies instructions by a cursor or the like for displayed basic figures and compound figures based on their position in relation to the area, sends a figure operation designation, etc. to the corresponding object, and causes the object to execute the specified operation. , and reflect the results on the screen display.

As described above, by providing various necessary objects in the class objects of graphical objects and spatially related objects, and preparing graphical manipulation procedures and the like according to each object, a graphical processing system that can easily utilize advanced graphical manipulation. can be configured.

〔Example〕

An object in an object-oriented information processing system is a unit of information in a predetermined form, consisting of data or procedures for processing required data, or both, as is known, and an object is often a form of well-known data representation. It is written in frame format.

A frame consists of a frame field that shows the frame name, a slot field that shows the type of data, a facet field that shows the type of data, and a value field that is data of a predetermined type.
In the case of an object, the object name is used as a frame name, data, data name, program name, etc. are shown in the field 1-, and the meaning and data type of the value in the value column are shown by slots and facets.

As is well known, various class objects are provided in an object-oriented system, and based on external specifications, necessary data values are materialized using the required class object as the original form and are described in the class object. Instance objects that inherit other information are generated, instance objects (hereinafter simply referred to as objects) are generated, and processes are executed by these objects.

The interface processing unit 13 shown in FIG. 1 generates a required window object 12 based on command information from the input device 2.

The WINDOW class object of the window object is, for example, a frame with slots as shown in Figure 2 (a). In the figure, the window name is written in string data (STRING) in the Name slot, and the upper left coordinates of the window on the screen are written. Top and Left
slot, window width -1dth, height)
Write it on the front and display it.
The odj slot describes a list of spatial relationship objects of the figure to be displayed.

Furthermore, an access table as shown in FIG. 2(b) showing the correspondence between displayed graphical objects and spatial relationship objects and rectangular areas covering the graphic on the window is generated and specified using the Access-table slot.

The Method slot indicates the operation procedure used by the window object. For example, Access determines the object of graphics and text information by referring to the access table from the position of the point specified by the user on the screen.
For example, a menu of graphical manipulation procedures for a graphical object, etc. is displayed on the screen, and when the user selects the necessary operation and inputs the required parameters, a message consisting of that information is sent to the corresponding graphical object, etc. Cause the operation to be performed.

For example, a LINE class object of the graphic object 10 is a frame having slots as shown in FIG. 3, and the start point X, start point y, end point This indicates the area for identifying the designation of this figure, and if there is no input, the coordinate values defining the minimum rectangular area that covers the figure are automatically set as default values when the instance object is generated.

Also, the Method slot specifies procedures for displaying, deleting, moving, and other graphic operations of a graphic, such as Dis.
play is a procedure that expands a figure to a specified coordinate position in the drawing space, displays the figure in a necessary window, and updates the area list of the window object accordingly. The Window slot shows a list of window object names indicating the window object 12 displaying the figure.

The spatially related object 11 corresponds to a simple map example as shown in FIG. 4(a), for example, and becomes a frame as shown in FIG. 4(b).

This graphical map O spatial relation object) 4 pieces u17, C
The 1ass slot indicates a relation number and a certain class object that inherits the necessary information, and the 5ubspace slot indicates the type of elemental figure of the composite figure, and for the various concave shapes shown there, each of the following slot G objects Name is written.

In addition, the window object name of the window that displays this figure on the window front is shown, and P
o5ition x, Po5ition y slot・
Ar
ea slot G The area of the composite figure here is indicated by the specified value or the default value of +i as above.

For example, the road figure O object, which is indicated by the above figure map 0 object, is again decomposed to the basic figure, which is a spatial relation object, as shown in Figure 4 (C), so the Data slot・A list of graphic object names of constituent elements is specified to the client.

Also, Po5ition x, Po5ition y
Slot, Area slot, etc. are indicated with the same meaning as above.

A graphic object of, for example, line 0 of the road graphic O is generated as an instance object of the LINE class object, as shown in FIG. 4(d).

In addition, the sentence O graphic object is described, for example, as shown in Figure 4(e), where the start point and the character content is specified in the string slot.

House figure 0, house figure 1 shown in figure map 0 object
For each, a spatial relationship object and a graphic object decomposed therefrom are generated in the same manner as described above.

As described above, by providing various necessary objects in class objects such as graphical objects and spatial relational objects, and preparing graphical manipulation procedures and other corresponding objects for each object, users can create meanings that correspond to real objects. It becomes possible to easily configure and use an advanced graphic processing system that can correctly identify and perform graphical operations on complex figures that have been recognized using the following methods.

〔Effect of the invention〕

As is clear from the above description, according to the present invention, in a graphic processing system of an object-oriented information processing system, a complex figure that a user recognizes by assigning a meaning corresponding to a real object can be directly copied. This has a significant industrial effect.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the configuration of the present invention, FIG. 2 is an explanatory diagram of a window object, FIG. 3 is an explanatory diagram of a graphical object, FIG. 4 is a diagram showing an example of an object, and FIG. 5 is an information processing diagram. FIG. 1 is a block diagram of an example configuration of a system. In the figure, ■ is a processing device, 2 is an input device, 3 is a display device, 4 is a graphic processing system, 10 is a graphical object, 11 is a spatial relationship object, 12 is a window object, and 13 is an interface processing unit

Claims (1)

[Scope of Claims] It has a screen that displays a drawing space consisting of a composite figure consisting of basic figures and character information consisting of letters, numbers, symbols, etc. as figure elements, An object-oriented information processing system that performs graphical processing in a drawing space, which has information for each basic figure that defines the shape of the basic figure, its arrangement in the drawing space, and its area; a graphical object (10) that executes a graphical manipulation procedure for a graphic; a spatial relationship object (11) that defines graphical elements constituting the required composite graphic and specifies the area of the composite graphic;
, and displaying a specified portion of the drawing space on a specified portion of the screen, and based on a graphic operation instruction instructing a graphic displayed on the screen, a graphic element determined by the area including the specified point. A window object (12) that identifies the corresponding spatial relationship object and graphic object, notifies the instruction, and causes the required graphic operation to be executed.
).