JPH07271994A - Method and system for graphic selection - Google Patents

Abstract

PURPOSE:To select plural graphic elements equalizing specified conditions by an easy operation. CONSTITUTION:Graphic element data including the shape information and the attribute information of a graphic is stored in a graphic element storage part 3. A respresentative element selection part 21 selects the graphic element displayed on the location on the display screen designated by an input part 1 as a representative graphic element. The shape information and the attribute information of the representative element is displayed on a display part 1. A condition item selection part 22 selects the information which is not extracted as a condition item from the shape information and the attribute information of the displayed representative element based on the operation of the input part 1. A retrieval/selection processing part 23 retrieves and selects all the graphic elements matched with the established condition items from the graphic element storage part 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an efficient graphic element selection method and method for selecting an arbitrary graphic in a CAD system for correction, movement, copying, deletion, grouping and the like.

[0002]

2. Description of the Related Art When selecting a plurality of target elements when editing a drawing, conventionally, a rectangular area is designated to specify the inside / outside of the rectangular area, or a plurality of elements are grouped in advance, and if necessary, a group unit is used. Although there is a method of making a selection with, a complicated operation such as inputting a command including a search condition from the keyboard is required to select a graphic element having a specific attribute in common.

[0003]

As described above, conventionally, in the case of selecting a plurality of graphic elements having the same specific condition, a complicated operation is required for setting the condition at the time of selection. there were.

The present invention has been made to solve such a problem, and provides a graphic element selecting method and system capable of selecting a plurality of graphic elements that make specific conditions equal by a simple operation. The purpose is to do.

[0005]

A graphic element selection method according to the present invention selects an arbitrary graphic element displayed on a display means as a representative element according to a selection operation by an input means, and selects the shape of the selected representative element. Information and attribute information are displayed on the display means, and information not extracted as condition items from the shape information and attribute information of the displayed representative element is selected according to the selection operation by the input means, and the condition confirmed by this selection processing. All the graphic elements that match the item and the representative element are selected as selection elements.

The graphic element selection method according to the present invention is a graphic element storage means for storing graphic element information including shape information and attribute information of a graphic, and a graphic element based on the graphic element information stored in the graphic element storage means. Display means for displaying, an input means for designating an arbitrary position on the display screen in the display means, and a representative for selecting the graphic element displayed at the position on the display screen designated by the input means as a representative element. Element selection means, display control means for displaying the shape information and attribute information of the representative element selected by the representative element selection means on the display means, and condition information from the shape information and attribute information of the displayed representative element. It matches the condition item selecting means for selecting information not to be extracted based on the input information from the input means, and the condition item confirmed by the condition item selecting means. Characterized in that the graphic elements and a search / selection processing means for selecting a search and select elements from the graphic element memory means of Te.

[0007]

According to the present invention, when only one graphic element having shape information and attribute information as a specific condition to be selected is selected on the display screen, the shape information and attribute information of the graphic element is displayed on the display screen. Is displayed in. Then, when the condition item is determined by the selection process from the shape information and the attribute information, all graphic elements that match the condition item are selected as selection elements. Since the condition item selection process is a process of selecting information that is not extracted as a condition item from the shape information and attribute information of the representative element, when selecting a graphic element that has exactly the same condition as the representative element, No selection processing is required. As described above, according to the present invention, it is possible to easily select a plurality of graphic elements having the same specific condition by a simple operation of selecting one graphic element having a specific condition on the display screen. Become.

[0008]

Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a functional block diagram showing the configuration of a CAD system that realizes a graphic element selection method according to an embodiment of the present invention. This system includes an input unit 1 including a coordinate input device such as a mouse, a joystick, and a tablet device, a CAD processing unit 2 including a CPU and predetermined software, an external disk device, and a graphic element memory such as a working memory. It is configured to include a unit 3 and a display unit 4 such as a color CRT display device or a color liquid crystal display device.

The CAD processing unit 2 selects an element selecting unit 11 for selecting a plurality of graphic elements having the same specific condition based on the input information from the input unit 1, and a graphic element selected by the element selecting unit 11. Edit processing unit 1 for performing appropriate edit processing
2 and a display control unit 13 for displaying necessary information on the display unit 4 at the time of processing in each of these units.

The element selecting section 11 includes a representative element selecting section 21,
A condition item selection unit 22 and a search / selection processing unit 23 are provided. The representative element selection unit 21 selects the diagram name element displayed at the position on the display screen designated by the input unit 1 as a representative element. The condition item selection unit 22 controls the display control unit 13 to display the shape information and the attribute information of the representative element selected by the representative element selection unit 21 on the display unit 4 in the form of the selection condition panel. Based on the operator's selection operation for, the information that is not extracted as the condition item is selected from the shape information and the attribute information, and the process of determining the condition item is executed. The search / selection processing unit 23 searches and selects all the graphic elements that satisfy the condition item determined by the condition item selection unit 22, adds a selection flag to the selected graphic element and the representative element, and displays them. The control unit 13 is controlled to change the display form of the selected graphic element.

Next, the operation of the present system thus constructed will be described. FIG. 2 is a flowchart showing a process when the element selection unit 11 selects a figure. This process is started when the graphic selection mode is selected from the main menu (not shown) and a specific graphic element is selected by operating the input unit 1. For example, when the graphic element information 31 as shown in FIG. 3 is displayed on the display screen 32,
When the cursor 33 operated by the input unit 1 such as a mouse is hit near a specific graphic element 34, the representative element selection unit 21 is activated and the coordinates of the hit point are fetched from a mouse coordinate storage unit (not shown) (S1). A graphic element passing through (in the vicinity of) the captured point is selected from the graphic element storage unit 3 (S2). This graphic element is the representative element.

When the representative element is selected, the condition item selection unit 22 is activated, and the condition item selection unit 22 controls the display control unit 13 to set the position near the hit point as shown in FIG. The selection condition panel 35 is displayed (S
3). The selection condition panel 35 has, for example, the contents shown in FIG. That is, a reference window 36 is set in the selection condition panel 35, and the representative element 34 currently selected in the reference window 36 is displayed as a reference diagram. On the right hand side of the reference window 36, items specific to the shape of the representative element such as radius and angle are included in the shape information 37.
Is displayed as. Further, standard attributes such as the pen number, line type, color, and layer number of the representative element 34 are displayed as attribute information 38 below the reference window 36. A toggle switch 39 is displayed so as to correspond to each item of the shape information 37 and the attribute information 38.
The toggle switch 39 can be turned ON / OFF by hitting with the cursor 33. In this example, black is displayed when ON and white is displayed when OFF.

The condition item selection unit 22 turns on / off the toggle switch 39 according to the input information from the input unit 1.
The condition items are selected by FF inversion.
When the stop key 41 of the selection condition panel 35 is hit,
Although the selection process is stopped, when the execution key 42 is hit, the condition item at that time is confirmed and the process proceeds to the next process (S4). For example, the example of FIG. 5 is in a state immediately after selection of the representative element, and when the execution key 42 is hit in this state, all the shape information 37 and the attribute information 3 are set as condition items.
8 is selected. Further, as shown in FIG. 6, when the toggle switches for the items of radius and color are set to OFF, all circular elements having the same conditions only in pen number, line type and layer number are selected. In other words, the range of selection will be expanded accordingly.

When the condition item is confirmed, the search / selection processing unit 23 is activated to search the graphic element storage unit 3 for a graphic element that matches the condition item and select it (S5). That is, FIG.
As shown in, the graphic element data 5 in the graphic element storage unit 3
1 is classified and stored for each element type such as a straight line, a circle, an ellipse, and a free curve, and the information of each graphic element stores actual values such as viewpoint coordinates, end point coordinates, center coordinates, and radius. It is composed of a pointer 52 pointing to a storage area, attribute information 53 of the graphic element, and a selection flag 54 indicating whether or not the graphic element is a selected element.
In the storage area designated by the pointer 52, actual coordinate data 55, radius data 56, etc. are stored.

Therefore, the search / selection processing unit 23 uses the graphic element data 51 of the same element type as the representative element, for example, "circle".
From the set, all the graphic element data 51 whose attribute information 53 matches the condition item are searched, and the selection flag of the graphic element data 51 which matches the condition is rewritten to "1". As a result, all graphic elements that have the same specific condition are selected. Subsequently, the search / selection processing unit 23 controls the display control unit 13 to change the display mode of the selected graphic element (S6). As a result, for example, as shown in FIG. 8, all circle elements 6 having a radius of “4.00 mm”, a pen number of 1, a line type of standard, a color of 5, and a layer number of 1
1 is selected, and these are highlighted and it becomes possible to confirm on the display unit 4 that they have been selected.

The graphic element 61 selected by the above processing
On the other hand, when the edit processing unit 12 executes a process such as changing the radius, the radii of all the selected circular elements are collectively changed as shown in FIG.

According to this system, the elements on the display screen are designated and the selection conditions are set. Therefore, mistakes at the time of setting the conditions can be prevented and the operation procedure can be simplified. This system is used for changing processing when a mistake is made by drawing a solid line where it should be drawn with a broken line, or when performing operations such as extracting elements with the same diameter and grouping them in consideration of NC processing. Is extremely effective for

[0018]

As described above, according to the present invention, when only one graphic element having shape information and attribute information as a specific condition to be selected is selected on the display screen, the shape of the graphic element is selected. Information and attribute information are displayed on the display screen, and when the condition item is determined from the shape information and attribute information by the selection process, all graphic elements that match the condition item are selected as selection elements. It is possible to easily select a plurality of graphic elements having the same condition without making a mistake.

[Brief description of drawings]

FIG. 1 is a functional block diagram of a CAD system to which a graphic element selection method according to an embodiment of the present invention is applied.

FIG. 2 is a flowchart showing a process when the graphic element is selected by the system.

FIG. 3 is a diagram of a display screen for explaining a representative element selecting operation in the system.

FIG. 4 is a diagram of a display screen on which a selection condition panel in the system is displayed.

FIG. 5 is a diagram showing details of the selection condition panel.

FIG. 6 is a diagram showing another condition setting example of the selection condition panel.

FIG. 7 is a diagram showing a structure of a graphic element stored in a graphic element storage unit in the system.

FIG. 8 is a diagram showing a display example of graphic elements selected by the graphic selection processing.

FIG. 9 is a diagram showing a display example after an editing process is performed on the selected graphic element.

[Explanation of symbols]

1 ... Input unit, 2 ... CAD processing unit, 3 ... Graphic element storage unit,
4 ... Display unit, 11 ... Element selection unit, 12 ... Edit processing unit, 1
3 ... Display control unit, 21 ... Representative element selection unit, 22 ... Condition item selection unit, 23 ... Search / selection processing unit.

Claims (2)

[Claims] 1. An arbitrary graphic element displayed on a display means is selected as a representative element according to a selection operation by an input means, and shape information and attribute information of the selected representative element are displayed on the display means, and this display is performed. Information that is not extracted as a condition item from the shape information and attribute information of the selected representative element is selected according to the selection operation by the input means, and all the graphic elements and the representative element that match the condition item confirmed by this selection process are selected. A graphic element selection method characterized by selecting as a selection element. 2. A graphic element storage means for storing graphic element information including shape information and attribute information of the graphic, and a display means for displaying the graphic based on the graphic element information stored in the graphic element storage means. Input means for designating an arbitrary position on the display screen in the display means, representative element selecting means for selecting the graphic element displayed at the position on the display screen designated by the input means as a representative element, and the representative element Display control means for displaying the shape information and attribute information of the representative element selected by the selecting means on the display means, and information not extracted as condition items from the shape information and attribute information of the displayed representative element from the input means. Condition item selecting means for selecting based on the input information of, and all the graphic elements that match the condition items confirmed by the condition item selecting means A graphic element selection method comprising: a search / selection processing means for searching from a storage means and selecting as a selection element.