JP4386528B2 - Medium storing graphic element selection method and CAD processing program - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a CAD program having a graphic element selection method and a graphic element selection process for selecting a graphic element after specifying a graphic element that can be selected from a plurality of graphic elements and narrowing down editing objects in a CAD system. It relates to the medium which memorizes.
[0002]
[Prior art]
In a CAD system, when selecting a specific graphic element from among complicated graphic elements as an object to be edited, the selection operation is easy if the selectable graphic elements are limited in advance. For such a purpose, a CAD system having a selection filter function for specifying selectable graphic elements by designating attributes such as graphic element type, graphic color, line type, pen type, layer number, etc. It has been known.
[0003]
[Problems to be solved by the invention]
However, in a conventional CAD system having a selection filter function, selectable graphic elements can be limited, but it is not possible to determine which graphic elements are selectable elements, and the selection operation is somewhat confusing. There was a problem of coming.
[0004]
The present invention has been made in view of such a problem, and a graphic element selection method and a CAD program that can facilitate a selection operation after narrowing down selectable graphic elements are provided. The purpose is to provide.
[0005]
[Means for Solving the Problems]
The graphic element selection method according to the present invention is selected by the input means from a plurality of graphic elements displayed on the display screen of the display means of the CAD system having input means, CAD processing means, graphic element storage means and display means. In a graphic element selection method for selecting one or more graphic elements to be based on input information from an input means , the CAD processing means can position a cursor for instruction input based on the input information from the input means. A step of detecting information, a step in which a CAD processing means designates in advance a selection condition of a graphic element that can be selected by the input means from the plurality of graphic elements based on the input information from the input means ; CAD processing means, based on whether the graphic elements the cursor is captured is the designated selectable graphical elements to the selected condition A step of enabling miso selection operation when determination to selection operation by said input means with respect to the selectable graphical elements has been made, the selectable graphical elements when the cursor is captured, the CAD When the processing means determines that the selectable graphic element satisfies the selection condition, the display means displays the graphic element in a display form that is different from when the selection is confirmed and when it cannot be selected. And a step of displaying.
[0006]
The recording medium according to the present invention should be selected by the input means from a plurality of graphic elements displayed on the display screen of the display means of the CAD system having the input means, CAD processing means, graphic element storage means and display means. A recording medium in which a CAD program having a graphic element selection process for selecting one or more graphic elements based on input information from an input means is recorded in a computer-readable manner, the CAD program being a computer In addition, a process for detecting position information of an instruction input cursor based on input information from the input means, and a selection condition of graphic elements that can be selected by the input means from the plurality of graphic elements in advance are input. a process for specifying, based on the input information from the unit, CAD processing means, graphic elements before Symbol cursor is capture the finger Whether or not the selected graphic element is selected based on the selection condition and enabling the selection operation only when the selection operation by the input unit is performed on the selectable graphic element; and When the selectable graphic element is captured by the cursor and the CAD processing means determines that the selectable graphic element satisfies the selection condition, the display means displays the graphic element. The display form is displayed in a display form different from that when the selection is confirmed and when the selection is not possible.
[0008]
The selection condition is preferably given by an attribute common to selectable graphic elements.
[0010]
According to the present invention, a selectable graphic element designated in advance from among a plurality of graphic elements displayed on the display means is displayed in a display form different from when the graphic element is selected and when it cannot be selected. The graphic elements that can be selected can be easily confirmed, and the selection operation becomes extremely simple.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a functional block diagram showing a part of a basic configuration of a CAD system for realizing a graphic element selection method according to an embodiment of the present invention.
[0012]
This system includes an input unit 1 such as an input device such as a mouse or a keyboard as coordinate input means, a CAD processing unit 2 configured by a CPU and predetermined application software, an external disk device for storing graphic elements, A graphic element storage unit 3 such as a working memory and a display unit 4 such as a color CRT display device or a color liquid crystal display device are provided.
[0013]
The CAD processing unit 2 includes the following units. The cursor position information processing unit 5 detects the position information of the mouse cursor based on the input information from the input unit 1. The filter processing unit 9 selects only the graphic elements designated by the input operation by the input unit 1 among the plurality of graphic elements stored in the graphic element storage unit 3 as selectable graphic elements. The element selection unit 8 inputs information from the cursor position information processing unit 5, and when the graphic element selection operation in the input unit 1 is performed on the selectable graphic element designated by the filter processing unit 9, Enable the selection operation. The display control unit 6 performs control for causing the display unit 4 to display the selectable graphic element, the selected graphic element, and the non-selectable graphic element in different display forms. Further, the display control unit 6 inputs the cursor position information from the cursor position information processing unit 5 and information from each unit, and executes control for displaying various necessary information on the display unit 4. The program for realizing the function of each block of the CAD processing unit 2 is provided by being recorded on an appropriate medium such as a CD-ROM.
[0014]
Next, the operation of the system configured as described above will be described. FIG. 2 is a diagram showing an example of a screen displayed on the display unit 4 of the CAD system.
[0015]
The screen 10 includes a graphic display area 11, various menu display areas 12, and the like. First, for example, when the “select” command menu is selected from the menu display area 12 of the screen 10, the element selection unit 8 is activated, and the subcommand setting dialog 13 for the selected command is displayed on the screen 10 as shown in FIG. The Note that this “select” command is to set a specified element in a selected state, and it is assumed that the selected command is always executed in a command waiting state.
[0016]
By using the subcommand 13 of the “select” command, the operator can set the selection method of the selection element or the selection method of the graphic element. For example, as shown in FIGS. 4A and 4B, the graphic element selection method can be selected using a selection pull-down menu 14, and the element to be selected is set as a real element / virtual element. This can be set using the selection element setting pull-down menu 15.
[0017]
In this selection pull-down menu 14, selection and cancellation of “normal selection” and “cross selection” can be set, respectively, so that the method of designating selectable graphic elements can be changed. FIG. 5A shows a method of selecting a graphic element when the normal selection / cancellation is set as single. In this case, the graphic element to be selected on the screen can be selected by the cursor 19. FIG. 5B shows a method of selecting a graphic element when normal selection / cancellation is set in the area. In this case, a plurality of graphic elements on the screen are dragged with the cursor 19 and selected in the selection area 20. be able to. FIG. 5C shows a method for selecting a graphic element when cross selection / cancellation is set. By pointing the cursor 19 to any two points (P1, P2), the two points (P1) can be selected. , P2), the graphic element that intersects the straight line 23 can be selected.
[0018]
Furthermore, in this subcommand 13, the filter function 17 and the attribute filter function 18 of the filter processing unit 9 can be activated by checking the filter valid check box 16, and the selection conditions can be set in detail and selectable elements. Can be further limited.
[0019]
For example, when the filter function 17 is activated, a filter dialog 30 is opened as shown in FIG. 6, and various conditions can be set for selectable graphic elements. As for graphic elements, by checking each check box of the graphic element setting window 31, selectable graphic elements can be limited to designated graphic elements. The color can be limited by the color setting window 32, the pen by the pen number setting window 33, and the line type by the line type setting window. The group setting check box 37 sets that the symbol component selection check box 35 sets the selection of the symbol component selection target, and the layer setting check box 36 specifies the layer number and selects the layer. Group shapes can be selected. As a result, fine selection conditions can be set, so that the operator can select only a limited graphic element.
[0020]
Further, when the attribute filter function 18 is activated, an attribute filter dialog 40 is opened as shown in FIG. 7, and the attributes of selectable graphic elements can be selected and limited. In this attribute filter dialog 40, since all attributes set on the drawing can be displayed as a list and set as selection conditions, the selection conditions can be limited and selected by attribute names and values.
[0021]
Furthermore, by changing the display color of the selected selectable graphic element to a color different from the display color of other non-selectable graphic elements and the display color of the selected graphic element, which graphic element can be selected. It is possible to easily identify whether there is any. For example, in FIG. 8, assuming that the circular element 21 and the linear element 24 are selectable elements and the other ellipse element 22 and rectangular element 25 are non-selectable elements by the filter function, the circular element 21 and straight line Although the element 24 and the ellipse element 22 and the rectangular element 25 may be displayed in different display colors, in this embodiment, when these elements are not selected, they are all displayed in the same color, for example, black, and the cursor 19 As shown in FIG. 5A, when the circular element 21 which is a selectable graphic element is supplemented, its display color changes to blue. On the other hand, as shown in FIG. 5B, even when the cursor 19 captures an ellipse element 22 that is an unselectable element, the display color remains black. Thereby, it can be easily identified that the circular element 21 can be selected by the filter function and the elliptical element 22 cannot be selected, and the selection operation is not confused. Here, when the circle element 21 is selected, the display color changes to, for example, red.
[0022]
Here, it is assumed that the selectable element can be identified when the graphic element is selected, and when the graphic element is selected, by changing the display color of the graphic element. For example, not only the display color but also the selection and The display form may be changed by changing the luminance of the display color of the graphic element when the selection is impossible.
[0023]
【The invention's effect】
As described above, according to the present invention, a selectable graphic element designated in advance from among a plurality of graphic elements displayed on the display means is different from when the graphic element is selected and when it cannot be selected. Since the display is performed in the display form, it is easy to confirm a selectable graphic element, and the selection operation is extremely simple.
[Brief description of the drawings]
FIG. 1 is a functional block diagram showing a part of a basic configuration of a CAD system for realizing a graphic element selection method according to an embodiment of the present invention.
FIG. 2 is a diagram showing an example of a screen displayed on the display unit of the system.
FIG. 3 is a diagram showing a subcommand setting dialog for a selection command displayed on the same screen.
FIG. 4 is a diagram showing a selection pull-down menu and a selection element setting pull-down menu of the same dialog.
FIG. 5 is a diagram for explaining a method for designating a selectable graphic element set by the selection pull-down menu.
FIG. 6 is a diagram showing a filter dialog displayed on the screen.
FIG. 7 is a diagram showing an attribute filter dialog displayed on the same screen.
FIG. 8 is a diagram showing a state in which selectable graphic elements are identified by one of the methods set in the pull-down menu.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Input part, 2 ... CAD process part, 3 ... Graphic element memory | storage part, 4 ... Display part, 5 ... Cursor position information processing part, 6 ... Display control part, 8 ... Element selection part, 9 ... Filter process part

Claims (3)

Input means, CAD processing unit, an input one or more graphic elements to be selected by the input means from the graphic element memory means and a plurality of graphical elements displayed on the display screen of the display means of the CAD system having a display means In the graphic element selection method for selecting based on input information from the means ,
CAD processing means detects position information of an instruction input cursor based on input information from the input means;
CAD processing means , based on the input information from the input means, to specify a selection condition of the graphic elements that can be selected in advance by the input means from the plurality of graphic elements;
The CAD processing means determines whether the graphic element captured by the cursor is the designated selectable graphic element based on the selection condition, and the selection operation by the input means for the selectable graphic element is performed. Enabling the selection operation only when done,
When the selectable graphic element is captured by the cursor, when the CAD processing means determines that the selectable graphic element satisfies the selection condition, the display means displays the graphic element. And a step of displaying the display form in a display form different from when the selection is confirmed and when the selection is not possible. The selection conditions are graphic element selection method of claim 1, wherein the given by the attributes common to selectable graphical elements. Input one or more graphic elements to be selected by the input means from the plurality of graphic elements displayed on the display screen of the display means of the CAD system having the input means, CAD processing means, graphic element storage means and display means In a recording medium in which a CAD program having a graphic element selection process for selecting based on input information from a means is recorded in a computer-readable manner,
The CAD program is stored in a computer.
Processing for detecting position information of an instruction input cursor based on input information from the input means;
Processing for designating selection conditions for graphic elements that can be selected by the input means from the plurality of graphic elements in advance based on input information from the input means;
CAD processing means, selection by said input means whether graphic elements before hear Cursor is captured is the designated selectable graphical elements by discriminating on the basis of the selection conditions for the selectable graphical elements Processing to make the selection operation valid only when an operation is performed,
When the selectable graphic element is captured by the cursor, when the CAD processing means determines that the selectable graphic element satisfies the selection condition, the display means displays the graphic element. A CAD program having graphic element selection processing is recorded so as to be readable by a computer, wherein the display mode of the element is displayed in a display mode different from when the selection is confirmed and when selection is not possible. A recording medium.

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