JPH0954792A - Interference part display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make an interference part easy to be found and to make the part easy to be confirmed even if the interference part is a very small. SOLUTION: A netting display is performed by an interference part confirmation propriety judgement part 3 judging whether the interference parts of plural article models are possible to be confirmed on a screen or not, an interference part area display part 6 selecting the centroid point of this interference part when the confirmation of the interference part is judged to be difficult by this judgment part and performing a halftone dot meshing display of the prescribed area surrounding the interference part with this centroid point as the center and this interference part area display means. This device is an interference part display device provided with slave screen preparation parts 22a to 22c preparing the slave screens of the interference part viewed in plural directions and a slave screen magnified display part 23 magnifying the plural slave screens prepared by this slave screen preparation part and simultaneously displaying the slave screens on the one screen of the display part.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an interference section display device used for design work when arranging and designing various members, parts, articles and the like (hereinafter collectively referred to as articles), and more particularly to a plurality of articles. The present invention relates to an interference unit display device capable of appropriately grasping the interference situation of a model.

[0002]

2. Description of the Related Art When a designer considers a three-dimensional shape of a plurality of article models, it is necessary to consider that the spaces occupied by the article models to be designed do not overlap each other. When it is judged that there is an interfering portion between a plurality of article models, it is necessary to consider what kind of interference situation the interfering portion is in.

Therefore, conventionally, the interference parts of a plurality of article models are displayed in the window in which the work is currently being performed. As a display method, a method of filling the interference parts of the plurality of article models with one color, or an interference article A method for highlighting the outline of a model, such that one article model interferes with another article model, or a location of one article model interferes with a location of another article model. There is a method of sequentially listing character data and displaying the list output in a text window.

[0004]

However, among the above-described methods of displaying the interference part, the method of filling the interference part of a plurality of article models with a single color is, for example, because the entire interference part is filled in on the screen. It is difficult to confirm the interference state, and when the interference portion is minute, it is simply displayed as a dot, so it is not possible to grasp what the interference state is. Moreover, when a plurality of interference points are scattered on the screen, it is difficult to find each interference point.

Further, in the method of highlighting the outline of the interference article model in a conspicuous manner, the periphery of the interference part has a very complicated shape, or a large number of article models are close to each other or completely interfere with each other. Sometimes it is difficult to judge the interference situation. Further, if a plurality of interference points are scattered on the screen as described above, it is difficult to find each interference point.

On the other hand, the method of displaying the article models in the interference relationship as a list output has a problem that it is difficult to grasp the relationship between the article model and the character data representing the interference state, and requires considerable skill of the designer.

Further, what can be said in common with all the display methods is an attempt to enlarge and display the interference part, or to change the observation direction of the interference part of the article model and display it. In this case, there is a problem that the operation is very complicated and time-consuming, and the design work becomes inefficient.

An object of the invention as set forth in claim 1 is to solve the above-mentioned problems, and it is an object of the present invention to provide an interference part display device which makes it easy to find a small interference part. .

The object of the invention described in claim 2 is to make it possible to automatically display the shape of the interference portion from a required direction, thereby facilitating easy finding of the interference portion, and appropriately determining the interference situation of the interference portion. Another object of the present invention is to provide an interfering section display device that can be grasped to improve the efficiency of design work.

An object of the invention described in claim 3 is to provide an interference part display device which makes it easy to find an interference part even when the interference parts are scattered. Claim 4
SUMMARY OF THE INVENTION An object of the invention described in (1) is to provide an interference part display device that can reliably and easily determine the mutual interference state of article models even when a large number of article models interfere with each other. .

An object of the invention described in claim 5 is to provide an interfering portion display device which accurately determines the congestion situation around the interfering portion and contributes to the efficiency of the work of designing an article model.

[0012]

In order to solve the above-mentioned problems, the invention according to claim 1 provides an interference display for displaying an interference part between article models when there is an interference part between the article models. In the partial display device, the interference part confirmation possibility judgment means for judging whether or not the interference part of the plurality of article models can be confirmed on the screen, and when it is difficult to confirm the interference part by this judgment means, An interference part region display means for selecting a representative point of the interference part, and halftone-displaying a predetermined region surrounding the interference part with the representative point as a center, and the interference part after the halftone display by the interference part region display means. It is an interference unit display device provided with a screen enlargement display means for enlarging and displaying the screen of the unit in a size that can be confirmed.

In the invention corresponding to claim 2, an interference part confirmation possibility judging means for judging whether or not the interference parts of a plurality of article models can be confirmed on the screen, and the interference part can be confirmed by this judging means. When it is determined that the interference is difficult, a representative point of the interference portion is selected, and a predetermined area surrounding the interference portion around the representative point is displayed as a mesh, and an interference portion area display means displays the mesh. After the overlaid display, a child screen creating means for creating a child screen of the interference section viewed from a plurality of directions and a plurality of child screens created by the child screen creating means are enlarged and simultaneously displayed on one screen of the display section. It is an interference part display device provided with a small screen enlarged display means.

The invention according to claim 3 relates to an interfering portion position specifying means for obtaining the positions of the interfering portions existing between a plurality of article models, and a positional relationship between the interfering portions obtained by the interfering portion position specifying means. Interference provided with balloon display position determination means for determining a balloon display position on the corresponding screen and interference part balloon display means for displaying a balloon at the balloon display position obtained by the balloon display position determination means from the interference part position It is a partial display device.

Next, in the invention corresponding to claim 4, when at least three article models interfere with each other, pair article model selecting means for setting a pair article model having an interference relationship, and this pair article. An interference part display device provided with an interference model pair display means for highlighting this paired article model differently from article models other than the paired article model according to the setting order of the paired article model selected by the model selection means. Is.

Further, the invention corresponding to claim 5 is to select a representative point of an interference part between article models, and to form a predetermined area frame surrounding the interference part around this representative point as a region frame creating means. And a congestion determination means for determining the congestion status of the interference part based on the number of intersecting sides of the area frame created by the area frame creation means and each article constituent side, and the interference part is enlarged and displayed based on the result of the determination. The interference unit display device is used as an index for determining whether or not to perform.

[0017]

Therefore, the invention according to claim 1 determines whether or not the interference parts of a plurality of article models can be confirmed on the screen by taking the above means, and the interference parts can be confirmed. Only when it is difficult, the representative point of the interference part is found and the predetermined area is shaded and displayed around the representative point.
It is easy to understand that the inside of the shaded part is the interference part, and since the interference part inside the shaded part is enlarged,
The interference state of the interference section can be easily confirmed.

In the invention corresponding to claim 2, only when it is difficult to confirm the interference portion, a representative point of the interference portion is found, a predetermined area is displayed in a shaded manner around the representative point, and further viewed from a plurality of directions. Since a child screen of the interference part is created and the shaded screen and multiple child screens are enlarged and displayed at the same time, for the interference part that is difficult to confirm, the current state and multi-direction interference do not require the operator's screen operation. You can check the interference state of the part,
It is possible to properly grasp the interference situation of the interference unit.

In the invention corresponding to claim 3, when there are a plurality of interference points between a plurality of article models, a leader line is drawn from each of the interference points to display a balloon, so that the interference portions are scattered. However, the number of interference points and the positions of interference can be surely confirmed.

In the invention corresponding to claim 4, when three or more article models interfere with each other, two article models are paired and, for example, article models other than the pair article model are displayed in dotted lines, hidden or not displayed. By using different color display, the paired article models are highlighted, and thereafter, the highlighting is repeated for each of the two article models in the same manner, so that the interference state between the article models can be displayed without bothering the operator. You can understand properly.

Further, in the invention according to claim 5, when the periphery of the interference portion is complicated, the interference is surrounded by a predetermined area frame surrounding the representative portion of the interference portion between the article models, and this area The congestion status of the interference part is determined based on the number of intersecting sides of the frame and each article configuration side, and the enlarged display is performed. It is possible to enlarge and display the situation of the interference section quickly and efficiently.

[0022]

Embodiments of the present invention will be described below with reference to the drawings. (First Embodiment) FIG. 1 is a functional block diagram showing an embodiment of an interference unit display device according to the first aspect.

In this display device, an interference check unit 1 for checking whether or not an interference unit exists between a plurality of article models, and a check result of the interference check unit 1 interferes between the plurality of article models. When a copy exists, a buffer memory 2 for storing, for example, two-dimensional screen data of a plurality of article models before interference check and after interference check sent from the interference check unit 1 side, and a buffer memory 2 Interference part confirmation availability determination unit 3 that determines whether or not the interference unit can be confirmed on the screen from the dimensional screen data, and is distinguished from other portions only when it is difficult to confirm the interference unit by the interference unit confirmation availability determination unit 3. An interfering portion area display unit 6 that is displayed on the display unit 5 via the image memory 4 after the required area surrounding the interfering portion is shaded so that
It is configured by a screen magnifying display unit 7 that magnifies and displays the interference units of the plurality of article models so that they can be easily confirmed.

The interference checking unit 1 draws the shape of a two-dimensional or three-dimensional article model as shown in FIG.
It is built into a drawing processing device such as a three-dimensional or three-dimensional CAD.

This drawing processing device converts three-dimensional screen (coordinates) data into two-dimensional screen (coordinates) data so that it can be used by the drawing processing unit 11, the interference checking unit 1, and other devices as needed. The coordinate conversion unit 12 and a data transmission interface 13 for transmitting two-dimensional or three-dimensional screen data of the article model based on data requests from other devices.

The drawing processing unit 11 positions the start point on the screen of the CRT display unit 15 by using the input device 14 such as a light pen or a mouse, and then moves the input device 14 in a desired direction to set the end point. Once positioned, the CAD database 16 data and shape processing program 1
7, x, y, z screen data of both end points can be acquired, and line segment data is acquired by calculating the distance connecting the both end points. If it is stored in the three-dimensional data buffer memory 18,
The shape of the two-dimensional or three-dimensional article model can be displayed on the screen of the CRT display unit 15.

The interference check unit 1 extracts x, y, z screen data of end points on the opposite surface side of a plurality of article models that are adjacent to each other from the data buffer memory 18, for example, and according to the interference check program 19, each article model. The values of the x, y, and z screen data can easily grasp the existence of the interference portion, and the interference check is performed using various conventionally known interference check methods. Then, when there is an interference part between a plurality of article models, the interference check part 1 performs the interference distinction data 20 that is predetermined in a memory area corresponding to the interference part, that is, a filling process with a predetermined color. To do.

The interfering portion confirmation propriety determining unit 3 compares the total number of pixels of the interfering portion filled in with a predetermined color with a threshold value set in advance for determining the interfering portion and confirms the interfering portion. It has a function of making it possible to confirm whether or not it is possible, that is, when the interference portion is a large area, and it is difficult to confirm when the interference portion is a small area.

The interference part area display part 6 has a representative point coordinate value calculation part 6a for calculating a representative point of the interference part when it is difficult to confirm the interference part and a representative point of the representative point coordinate value calculation part 6a. In order to identify the interference part, a predetermined area surrounding the interference part, for example, a circle is created, and halftone is shaded by gradation conversion of a predetermined density so that the interference part and other parts in the area can be identified. An area drawing section 6b is provided.

Next, the operation of the interference display device as described above will be described with reference to FIG. First, the interference check unit 1 retrieves x, y, z screen data of a plurality of adjacent article models from the data buffer memory 18 according to the interference check program 19 and performs an interference check (ST1). Then, for example, two-dimensional screen data of a plurality of article models in which the interference portion exists is extracted (ST2), and the interference portions are sequentially filled with the color data determined by the predetermined interference discrimination data 20 (ST3). Incidentally, the interference part of the two-dimensional screen data of a plurality of article models is in the circle A in the figure, and more specifically, the interference situation of the interference part in the circle A is interfered in a state like the circle B in the figure. It is assumed that

The two-dimensional screen data before the interference check and after the interference check sent from the drawing processing apparatus having the interference check unit 1 is temporarily stored in the buffer memory 2 and then stored in the interference unit confirmation availability judgment unit 3. Then, it is determined whether or not the interference part of the multiple article model can be easily confirmed.

Whether or not this interference portion can be confirmed is determined by
This is performed by calculating the total number of pixels occupied by the interference section (ST4). The calculation of the total number of pixels is performed as shown in FIG. 4, for example, the pixel value on the screen before the interference check stored in the buffer memory 2 or the image memory 4 having the bitmap display memory structure and the predetermined value after the interference check. The number of pixels having different pixel values is extracted from the pixel values on the screen filled with color, and this value is calculated as the total number of pixels occupied by the interference unit.

Thereafter, the total number of pixels calculated as described above is compared with a predetermined threshold value ε for determining interference portion confirmation (ST5), and when the total number of pixels of the interference portion is larger than the threshold value ε. , The two-dimensional screen data of the buffer memory 2 is transferred to the image memory 4 without performing the processing of the next step, and then displayed on the CRT display unit 5. In addition, the threshold value ε for determining the interference part confirmation is CR
100 to 1 depending on the resolution of the T display unit 5.
A value of around 000 is desirable.

On the other hand, when the total number of pixels in the interference portion is smaller than the threshold value ε in step ST5 and it is determined that the confirmation of the interference portion is very difficult, the interference portion area display portion 6 executes a predetermined process. . The interference area display 6 is
Any one of the barycentric point, the centroid point, and an arbitrary vertex of the interference part is selected as a representative point, and the coordinate value of the interference part representative point is calculated (ST6). Thereafter, the interference area display unit 6 draws an area of a predetermined shape surrounding the interference area with the interference area representative point as the center (ST7). Note that this area is, for example, a circle, a rectangular parallelepiped,
Polygons etc. can be considered.

Here, for example, when drawing a circle centered on the interference point representative point, the radius of the circle is first calculated. The radius of this circle is calculated by comparing the sizes of the vertical length a and the horizontal width b of the screen as shown in FIG. 5 (ST11). When the vertical length a is large, the horizontal radius b is A (the radius of the area circle relative to the screen size). Ratio of ×
(1 / scale of screen)} to obtain the radius r (ST1
2) Otherwise, the length a is multiplied by A to obtain the radius r (ST13). The ratio of the radius of the area circle to the size of the screen is preferably about 0.1. In addition, (1 / scale of screen) is the reciprocal of the scale of the screen multiplied when an actual size object is displayed on the screen. With this, the radius of the area circle in the actual size can be calculated (see FIG. 6).

Then, if a predetermined area surrounding the interference portion with the representative point of the interference portion as the center is drawn as described above,
Subsequently, in order to distinguish a predetermined drawing area surrounding the interference part from another area, gradation processing is performed within the predetermined drawing area to perform a halftone process so that the density becomes different from that of the other area, and a CRT is performed. It is displayed on the display unit 5 (ST8). After that, the screen enlargement display unit 7 enlarges and displays it at a required magnification so that the interference unit can be surely confirmed (ST9). 1 and 3B show the state of the two-dimensional screen data of the buffer memory 2 or the image memory 4 after the enlargement processing, and the interference state of the interference section is clearly expressed.

Therefore, according to the configuration of the above embodiment, when the interference part exists from the check result of the interference check part 1, whether or not the interference part can be confirmed on the screen by the interference part confirmation possibility determination part 3. If it is difficult to confirm on the screen if it is an interference part, the predetermined point surrounding the interference part is drawn around the representative point of the interference part and the area is shaded. Can easily confirm the position of the interference part. In addition, regarding the interference part that is difficult to confirm, the predetermined area surrounding the interference part is shaded and the area is enlarged and displayed at a predetermined scale, so the operator can see the small interference part that is difficult to check without bothering the operator. It can be easily found, and the work of the display operation of the designer can be eliminated to improve the efficiency of the design work. (Second Embodiment) FIG. 2 is a functional block diagram showing an embodiment of the interference section display device according to the second aspect.

This display device has an interference check unit 1, an interference unit confirmation propriety determination unit 3 and an interference unit area display unit 6 which have the same functions and configurations as in FIG. Is provided.

The screen enlarging display section 7'forms four or five window frames on the area forming at least the bit map dismemory on the buffer memory 2 according to the display frame forming program and each display frame coordinate designation data. Based on the child screen display frame creation unit 21 and the two-dimensional screen data shown in the figure (b) representing the interference part of the plurality of article models already stored in the buffer memory 2, each direction according to the drawing program for each direction. A front view, a side view, and a top view when the interference portion is viewed from are created, and the front view creation unit 22a, the side view creation unit 22b, and the top view creation unit 2 are set in the corresponding window frame created in the buffer memory 2.
2c and the two-dimensional screen data of each drawing stored in the buffer memory 2 are enlarged and transferred to the image memory 4, and the CRT display unit 5
And a small screen enlarged display unit 23 displayed on the screen.

The front view creating section 22a and the side view creating section 2
2b and the top view creating unit 22c create a front view, a side view and a top view in the corresponding direction by using individual drawing programs, and when the front view is specifically described, it is shown in FIG. From the coordinate data appearing on the front of the 3D screen data, set a certain coordinate position as a starting point, and from this starting point, modify the length of each side appearing on the front by a coefficient that is empirically and geometrically determined to modify it into a quadrangle. By doing so, a front view is created. The side view and the top view are also created by the same procedure.

The operation of the apparatus configured as in this embodiment will be described. First, the interference check unit 1, the interference unit confirmation availability determination unit 3, and the interference unit area display unit 6 perform the same processing as in FIG. 3 to obtain two-dimensional screen data in which a predetermined area surrounding the interference unit is shaded. It is stored in the buffer memory 2 or the image memory 4. After that, after arranging four or five window frames on at least the bit map memory area on the buffer memory 2 by using the display frame forming program and each display frame coordinate designating data by the child screen display frame creating section 21, Front view creation unit 22a, side view creation unit 2
Two-dimensional screen data of the interference part viewed from each direction is created by 2b and the top view creating part 22c. The screen data viewed from each direction is created by using the child screen data viewed from each direction by using the length of each side of the target line segment of the interference portion that appears when viewed from each direction and the coefficient determined geometrically in advance. Sequentially created,
It is sequentially stored in the corresponding window frame of the buffer memory 2 together with the screen data shown in (b) and the screen data after being shaded. Therefore, if the screen data of a plurality of child screens of this buffer memory 2 is enlarged and displayed, the CRT
An image as shown in FIG. 8 can be displayed on the screen of the display unit 5.

Therefore, according to the configuration of the above embodiment, in addition to the advantages obtained in the first embodiment, the screen enlargement display section 7'displays the screen in the current direction, as well as the front, side and top directions. Since the child screens viewed from above are created and each child screen is enlarged and displayed at the same time, it is possible to proceed with the screen display work without requiring the operator to operate the screens, and while checking the position of the entire interfering part. The interference state in the direction can be confirmed, and thus the interference state of the interference section can be accurately grasped in a short time.

In the above embodiment, the buffer memory 2 is used.
Although a plurality of window frames are formed on the upper side, and each child screen is created and stored in each of these window frames, for example, a plurality of window memories are prepared in advance, and the front view creating unit 22a and the side view creating unit are prepared. 22b and each child screen created by the top view creation unit 22c are sequentially stored in the corresponding window memory, and then the screen data of each window memory is stored in a predetermined arrangement on the buffer memory 2 having a bitmap memory according to the program data. After doing
The screen may be enlarged and displayed on the CRT display unit 5. (Third Embodiment) FIG. 9 is a functional block diagram showing an embodiment of the interference section display device according to the third aspect.

This interference part display device includes an interference check part 1 included in a drawing processing device and the like as in FIG. 1, and when there is an interference part between a plurality of article models by the interference check part 1, the interference check part 1 concerned. After storing the two-dimensional screen data of a plurality of models each having a copy in the buffer memory 2, a balloon display availability determination unit 31 that determines whether or not to display a balloon from the interference unit of the plurality of article models, and this determination unit 31. When it is determined that the balloon needs to be displayed by the interference unit, the interference unit balloon display unit 32 that displays the balloon from each interference unit, and the screen enlargement display units 7 and 7 ′ that enlarge and display the screen of the interference unit (Fig. 1, see FIG. 7).

The interference part balloon display part 32 includes an interference part position specifying part 32a for specifying the positions of the interference parts existing between a plurality of article models, and the position of the interference part specified by the interference part position specifying part 32a. The balloon display position specifying unit 32b for obtaining the balloon display position on the screen corresponding to the relationship and the interference unit balloon display unit 32c for drawing a leader line from the position of the interference unit to the balloon display position to draw a balloon such as a number are displayed. It is provided.

Next, the operation of the apparatus thus constructed will be described with reference to FIG. First, the interference check unit 1 checks whether or not there are a plurality of interference units between two or three or more article models (ST.
21) In the case where there are a plurality of interfering parts, in addition to the two-dimensional screen data before the interference check of a plurality of article models having an interfering relationship with each other, each interfering part is given a predetermined color as described above. The filled two-dimensional screen data after the interference check is output and stored in the buffer memory 2, respectively.

Here, the balloon display availability determination unit 31 calculates the number of interference points based on the difference between the pixel values on the screen before and after the interference check of the buffer memory 2 and the continuity of the pixel values (ST22). ), It is determined whether the number of interference points is greater than 1 (ST2
3) When the number of interference points is 1, the balloon display and the enlarged display as necessary are unnecessary, while the number of interference points is 2
If the number is one or more, it is determined that balloon display is necessary.

Therefore, the interference portion position specifying portion 32a of the interference portion balloon display portion 32 calculates the coordinate value of the representative point of each interference portion (ST24). It is desirable that this representative point be an arbitrary vertex of the interference section.

After that, the balloon display position specifying unit 32b
Finds a background portion where a certain number or more of obstruction figures do not exist from the positions of the interference parts of the plurality of article models stored in the buffer memory 2, and displays a balloon on the screen corresponding to the positional relationship of the interference parts. Position (ST25). The display position of the balloon may be anywhere on the screen, but it is desirable that the balloon lead line 32d, which will be described later, be in a direction in which it does not intersect the model as much as possible.

When the position of each interference portion and the display position of the balloon are specified as described above, the leader line 32d is derived from the position of each interference portion to the balloon display position according to the program data, and the leader line is drawn. At the end, a balloon, that is, a balloon 32e in which numbers 1, 2, 3, ... Are sequentially inserted in a circle is drawn (ST26) and displayed on the CRT display unit 5 via the image memory 4. In addition to the balloon, there is an example in which two article models that interfere with each other are displayed as a list on a screen or a text window, but the balloon display is most effective from the viewpoint of confirming the position of the interference portion. In the figure, C shows the state of the two-dimensional screen data on the buffer memory 2, and C'shows the interference state by enlarging the circled portion in the figure for convenience.

After the balloon screen is created as described above, thereafter, it is designated for each interference unit as needed, and the screen enlargement display unit 7 enlarges the screen to a desired size, or the screen enlargement display unit is displayed. A plurality of child screens are created at 7'and enlarged to a required size (ST27), and then displayed on the CRT display unit 5.

Therefore, according to the configuration of the above embodiment, when it is determined whether or not the balloon display is necessary and it is determined that the balloon display is necessary, the interference part balloon display unit 32 displays a plurality of article models to each other. Since the balloons 32e are displayed from the plurality of interfering portions, the number of interfering portions and the positions of the interfering portions can be surely and quickly confirmed even when the interfering portions are scattered over a plurality of locations on the screen. Further, when the balloons displayed in the respective interference portions are designated by the program with a mouse or tablet, the enlarged screen display portions 7 and 7 ′ of the designated interference portions are used to create child screens viewed from a plurality of directions and enlarged. It can be displayed, and the interference state of each interference unit can be accurately confirmed.

(Fourth Embodiment) FIG. 11 is a functional block diagram showing an embodiment of the interference section display device according to the fourth aspect.

This display device is, for example, to display the interference part while pairing the two models when the interference part exists between three or more article models. Specifically, the first embodiment is used. The interference check unit 1 as in the example and the second embodiment.
In addition to the interference section region display section 6 and the screen enlargement display sections 7 and 7 '(not shown), an interference article model for determining whether to display the interference section while newly pairing two article models A display availability determination unit 41 and a paired article model display control unit 42 are provided.

The pair article model display control unit 42, for example, when the three models A, B, and C interfere with each other, a pair of models, for example, AB, so that they do not overlap each other.
Pair article model selection unit 4 for sequentially setting B-C and C-A
2a and the paired article model highlighting section 42b for highlighting the paired article model selected by the paired article model selection section 42a and displaying the article model other than the pair in a color similar to the background color, hidden, or dotted line display. It is provided.

The operation of the apparatus thus configured will be described with reference to FIG. In the interference checking unit 1, it is checked whether or not there is an interfering portion between each of the three or more article models (ST31). In addition to the two-dimensional screen data of a plurality of article models before a certain interference check, as described above, two of the plurality of article models after the interference check, which are filled with a predetermined color in each interference part, are used.
The dimensional screen data is output and stored in the buffer memory 2 respectively.

Here, the interfering article model display availability determination unit 4
In No. 1, after calculating the number of interference points based on the difference between the pixel values on the screen before and after the interference check of the buffer memory 2 and the continuity of the pixel values (ST3
2) It is determined whether or not the number of interference points is larger than 1 (ST33), and when the number of interference points is 1, it is determined that the pair article model display and the enlarged display as necessary are unnecessary.
On the other hand, when the number of interference points is two or more, it is determined that it is necessary to display the interference section for each pair of article models.

Therefore, when the pair article model selection section 42a in the pair article model display control section 42 determines that the pair model display is necessary, each model name is assumed to be, for example, A, B, C, and the buffer memory 2 is used. Number of the item setting memory 2a model name A, B, C to the article model name A,
The characteristic coordinate data XXX of B and C is set. After a while
A pair article model is selected (ST34). The selection of the paired article model is performed by selecting a paired model, for example, A and B, based on the paired article model combination memory 2b of the buffer memory 2 as shown in FIG. 13B (ST34), and the selected paired model can be understood. Like, “0” of the corresponding area
Is set to "1". It should be noted that no data is set in the X area of FIG.

Thereafter, the paired article model highlight display section 42b specifies the article models A and B of the two-dimensional screen data from the characteristic coordinate data of the article models A and B according to the program data, and identifies the article models A and B. The other article models C are left to be hidden, changed to a dotted line display, or changed to a color close to the background color based on the preset program setting contents, thereby highlighting the article models A and B (ST35). On the contrary, a method in which the article models A and B are changed to a color different from that of the article model C and the highlight processing is performed may be used.

After highlighting the paired article models A and B as described above, the interference section representative points in the paired article models A and B are processed by the same processing as the interference section region display section 6 in FIGS. After obtaining the coordinate value of, the required area surrounding the interference area is drawn around the interference area representative point, and the predetermined area is shaded (ST36) to clarify the interference area. After that, the interference portion is enlarged to a required size by the screen enlargement display portions 7 and 7 ', and enlarged and displayed on the CRT display portion 5 (ST37).

Subsequently, the paired article model corresponding to the "0" area of the paired article model combination table 23b, for example, B and C, is selected, and the same processing is repeatedly executed (S).
T34 to ST37).

Therefore, according to the configuration of this embodiment, two paired article models are sequentially selected, highlighted, and enlarged in the interference portions of a plurality of article models. Even if a plurality of parts are scattered on the screen, the interference part can be easily found, and the paired article models can be sequentially selected and the interference parts can be efficiently displayed without the operator's hand. (Fifth Embodiment) FIG. 14 is a functional block diagram showing an embodiment of the interference section display device according to the fifth aspect.

This display device displays the interference part while determining the degree of congestion around the interference part between a plurality of article models. Specifically, the interference check part 1, the interference part area display part 6 and In addition to the screen enlargement display units 7 and 7 ', a congestion state determination unit 51 for determining the congestion state around the interference unit is newly provided between the interference check unit 1 and the interference region display unit 6.

The congestion situation judging section 51 uses the center of gravity of the interference section, the centroid point or an arbitrary vertex as a representative point, and a predetermined area frame such as a circle surrounding the interference section with the coordinate value of the representative point as the center. An area frame creating unit 51a, an intersection side number calculating unit 51b for obtaining the number of intersecting sides at which the area frame created by the region frame creating unit 51a intersects the constituent sides of each model, and the intersecting side number calculating unit It is configured by a congestion determination unit 51c that compares the number of intersecting sides obtained by 51b with a predetermined threshold value for determining the congestion degree around the interference section to determine the congestion degree.

Next, the operation of the apparatus of the above embodiment will be described with reference to FIG. First, the interference check unit 1 checks whether or not there is an interference portion between article models (ST41). If there is an interference portion between these article models, the interference portion of the two-dimensional screen data is checked. The filling process is performed with a predetermined color. Then, the two-dimensional screen data before the interference check and the two-dimensional screen data after the interference check filled in with the colors of the plurality of article models having the mutual interference relationship are output and stored in the buffer memory 2, respectively.

Here, in the area frame creating section 51a of the congestion situation judging section 51, the two-dimensional screen data after the interference check is read from the buffer memory 2 and displayed on the CRT display section 5 via the image memory 4, while a certain color is displayed. The coordinate value of the representative point of the filled interference portion is calculated, and the area frame 51d such as a circle surrounding the interference portion around the representative point is calculated in the same manner as described above (ST42) and stored in the buffer memory 2. .

Thereafter, the number of intersecting edges 51 at which the area frame and the constituent edges of each article model intersect in the intersecting edge number calculating unit 51b.
By sequentially counting d, the number of intersecting sides of the article model intersecting the area frame is obtained (ST43). Further, the number of intersecting edges calculated by the number of intersecting edges calculation unit 51b is compared with a predetermined threshold value ε for determining the degree of congestion around the interference section (ST44), and the number of intersecting edges is smaller than the threshold value ε. When it is judged that it is possible to check the interference part without displaying the interference part area or enlarged display, the congestion condition is severe when the number of intersecting sides is larger than the threshold value ε, and enlarged display is required. Judge that there is.

Therefore, in the interference part area display part 3, as shown in FIG.
After obtaining the coordinate value of the representative point of the interference part in the same manner as in FIG. 7, a required area surrounding the interference point with the representative point of the interference part as a center is drawn, and the predetermined area is shaded (ST4).
5) Clarify the interference part as shown in FIG. further,
The interference portion is enlarged to a desired size by the screen enlargement display portions 7 and 7'and is enlarged and displayed on the CRT display portion 5 (ST4).
6).

Therefore, according to the configuration of the above embodiment, even when the periphery of the interference portion is complicated and difficult to see, a region frame surrounding the interference portion is formed, and congestion is generated from the number of sides of the article model intersecting the region frame. When the situation is judged and it is judged that the congestion is severe, the image is enlarged and displayed, so that the operator can automatically check the interference part without being affected by the surroundings of the interference part without bothering the operator. . (Sixth Embodiment) FIG. 16 is a functional block diagram showing an embodiment of the interference part display device according to the fifth aspect.

This display device is a process for hiding the shape of a specified article model when the periphery of the interference section is complicated and difficult to see due to the shape of another article model. The interference check section 1 is shown in FIG. A congestion status determination unit 51, a volume clipping unit 61, and screen enlargement display units 7 and 7'are provided.

The volume clipping section 61 specifies, for example, an article model having a small number of interference parts among a plurality of article model interference sections and hides the model.
a, a representative point specifying unit 61b that obtains the coordinate value of the representative point of the interference section of the remaining plurality of article models that are hidden by the model non-display section 61a, and the interference section around the representative point A volume clipping processing unit 61c that performs volume clipping processing so as to surround the area.

Next, the operation of the apparatus configured as described above will be described with reference to FIG. First, the interference check unit 1 checks whether or not there is an interference portion between article models (ST51). If there is an interference portion between article models, the interference portion of the two-dimensional screen data is previously stored. Fill with the specified color. And 2 before the interference check of the multiple article models that have mutual interference relationship
The two-dimensional screen data and the two-dimensional screen data filled with the color after the interference check are output and stored in the buffer memory 2.

Here, in the congestion situation determination unit 51, the area frame creation unit 51a reads the two-dimensional screen data after the interference check from the buffer memory 2 and the C data via the image memory 4
While displaying on the RT display unit 5, the coordinate value of the representative point of the interference portion filled with a certain color is calculated, and the area frame such as a circle surrounding the interference portion is centered on the representative point in the same manner as described above. It is calculated (ST52) and stored in the buffer memory 2.

Thereafter, the number of intersecting sides 51 at which the area frame and the constituent sides of each article model intersect in the intersecting side number calculating unit 51b.
By sequentially counting d, the number of intersecting sides of the article model intersecting the area frame is obtained (ST53). Further, the number of intersecting sides calculated by the number of intersecting sides calculating section 51b is compared with a threshold value ε for determining the degree of congestion around the interference portion which is set in advance (ST54), and the number of intersecting sides is smaller than the threshold value ε. At this time, it is determined that there is little congestion and it is possible to check the interference part without volume clipping or enlarged display.On the other hand, when the number of intersecting sides is larger than the threshold value ε, the congestion is severe and enlarged display is required. to decide.

Therefore, the volume clipping unit 61 designates an article model that is not so important from the viewpoint of the confirmation of the interference section, and the screen data of the designated article model is selected from the two-dimensional screen data of a plurality of article models having an interference relationship. After erasing (ST55), the coordinate value of the representative point of the interference part among the remaining plurality of article models is calculated (ST5
6). Thereafter, the area drawing processing as shown in FIGS. 5 and 6 described above is used centering on the representative point of the interference portion between the plurality of article models, and the volume clipping processing is performed so as to surround these interference portions ( In ST57), as a result, the portion distant from the interference portion by a required distance is erased. The figure used for this volume clipping is preferably a cube. The length of one side of the cube in the depth direction is set to be twice the radius obtained by the region drawing processing of FIGS. 5 and 6 described above or a length obtained by adding a predetermined value to the length. X, y, z for the vertical and horizontal height directions of
It is desirable to make it parallel to the axis, and the cube by the dotted line is effective from the viewpoint of grasping the condition of the interference portion.

In the case of the CRT display section 5 having a mouse, a cube may be designated by the mouse and the volume clipping processing of the interference section may be performed. After performing the volume clipping processing of the interference section as described above, the interference section is enlarged to a required size by the screen enlargement display section 7 or 7'and stored in the image memory 4, and then the CRT display section 5 Is enlarged and displayed (ST58).

Therefore, according to the configuration of the above embodiment, since the volume clipping unit 61 volume-clips the periphery of the interference unit in the complicated and difficult-to-see interference unit, the state of the interfering unit can be easily confirmed. It can be made easier. (Embodiment 7) FIG. 18 is a functional block diagram showing an embodiment of the interference part display device according to the present invention.

This display device is an example of displaying the interference part while selecting the paired product when the periphery of the interference part is complicated and difficult to see due to the shape of another product model. Specifically, the interference check part 1, It is composed of a congestion status judging section 51 shown in FIG. 14, a pair article model display control section 42 and screen enlargement display sections 7 and 7'shown in FIG.

As shown in FIG. 14, the congestion situation judging section 51 sets the center of gravity, centroid or arbitrary vertex of the interference section as a representative point and surrounds the interference section with the coordinate value of the representative point as the center. As described above, an area frame creation unit 51a that creates a predetermined area frame, for example, a circle, and an intersection edge number calculation unit 51b that obtains the number of intersection edges at which the area frame created by this area frame creation unit 51a and the constituent edges of each model intersect. And the intersection side number calculation unit 51b
And the congestion determination section 51c for determining the congestion degree by comparing the number of intersecting sides obtained by the above with a predetermined threshold value for determining the congestion degree around the interference section, while the pair article model display control section 42 is , As shown in FIG. 11, for example, 3
When the individual models interfere with each other, the pair article model selection unit 42a that sequentially selects paired models so as not to overlap and the pair article model selected by the pair article model selection unit 42a are emphasized, A pair article model highlight display section 42b is provided which displays the article model other than the pair in a color similar to the background color and which is not displayed or is displayed in a dotted line.

In the display device of this embodiment, after the interference check (ST61), the two-dimensional screen data and the color before the interference check of the plural article models having the mutual interference relationship sent from the interference check section 1 side are displayed. The filled two-dimensional screen data after the interference check is stored in the buffer memory 2, and the two-dimensional screen data after the interference check is read from the buffer memory 2 and displayed on the CRT display unit 5 via the image memory 4. The coordinate value of the representative point of the interference part filled with a certain color is calculated, and the area frame such as a circle surrounding the interference part around the representative point is calculated (ST62) and stored in the buffer memory 2. Thereafter, the intersecting side number calculation unit 51b sequentially counts the number of intersecting sides 51d where the area frame and the constituent sides of each article model intersect, and obtains the number of intersecting sides of the article model that intersects the area frame (ST6).
3). Further, the number of intersecting edges calculated by the number of intersecting edges calculating section 51b is compared with a predetermined threshold value ε for determining the degree of congestion around the interference section (ST64), and the number of intersecting edges is smaller than the threshold value ε. At this time, it is determined that there is little congestion and it is possible to check the interference part without volume clipping or enlarged display.On the other hand, when the number of intersecting sides is larger than the threshold value ε, the congestion is severe and enlarged display is required. to decide.

After that, the pair article model display control unit 42
In the pair article model selection unit 42a, the model names are assumed to be A, B, and C, as described with reference to FIG. 13, and the model names A, B, and C of the number setting memory 2a of the buffer memory 2 are assumed.
Characteristic coordinate data of the article model name A, B, C
Set. Then, the pair article model is selected (ST65). The selection of this paired article model is shown in FIG.
As shown in (b), the pair model, for example, A, B, based on the pair article model combination memory 2b of the buffer memory 2 is used.
Is selected, and “0” of the corresponding area is changed to “1” so that the selected pair model can be understood.

Thereafter, the paired article model highlight display section 42b specifies the article models A and B of the two-dimensional screen data from the characteristic coordinate data of the article models A and B according to the program data, and identifies the article models A and B. The other article models C are left to be hidden, changed to a dotted line display, or changed to a color close to the background color on the basis of the preset program setting contents to perform highlight processing of the article models A and B (ST66). Screen enlargement display of two article models is performed (ST67). On the contrary, a method in which the article models A and B are changed to a color different from that of the article model C and the highlight processing is performed may be used.

Therefore, according to the structure of this embodiment, when the interference portion is difficult to see, the two article models having the interference relation are highlighted, so that the periphery of the interference portion has a complicated shape or a plurality of points are in close contact with each other. The interference situation can be reliably and easily confirmed.

[0084]

As described above, according to the present invention, the following various effects are exhibited. According to the invention of claim 1, even if the interference portion is minute, the interference portion is shaded, and
Since the display is enlarged, the interference portion can be easily found.

According to the invention of claim 2, the interference part is shaded,
And because it is enlarged, it is easy to find the interference part,
Further, since the shape of the interference portion is automatically displayed from the required direction, the interference situation of the interference portion can be appropriately grasped, and the efficiency of the design work can be improved.

According to the third aspect of the present invention, even if the interfering portions are scattered, the interfering points are displayed as balloons, so that the interfering points can be easily found. According to the invention of claim 4, even when a large number of article models interfere with each other,
Since the interference section is displayed for each article pair, the interference situation between article models can be determined reliably and easily.

According to the fifth aspect of the present invention, the congestion situation around the interference portion can be accurately determined and various displays can be made according to the interference state, which can greatly contribute to the efficiency of the work of designing the article model.

[Brief description of drawings]

FIG. 1 is a functional block diagram showing an embodiment of an interference unit display device according to the invention of claim 1.

FIG. 2 is a functional block diagram of a drawing processing apparatus for explaining the interference check unit shown in FIG.

FIG. 3 is a diagram for explaining the operation of the apparatus shown in FIG.

FIG. 4 is a diagram illustrating an example of calculating the number of pixels occupied by an interference unit.

5 is an explanatory diagram of a region drawing unit shown in FIG.

FIG. 6 is an explanatory diagram of the area drawing unit shown in FIG. 1.

FIG. 7 is a functional block diagram showing an embodiment of an interference section display device according to the invention of claim 2;

FIG. 8 is a diagram showing a screen display state of a CRT display unit.

FIG. 9 is a functional block diagram showing an embodiment of an interference unit display device according to the invention of claim 3;

FIG. 10 is a view for explaining the operation of the apparatus shown in FIG.

FIG. 11 is a functional block diagram showing an embodiment of an interference section display device according to the invention of claim 4;

FIG. 12 is a diagram for explaining the operation of the apparatus shown in FIG.

FIG. 13 is a diagram for explaining the operation of the device shown in FIG.

FIG. 14 is a functional block diagram showing an embodiment of an interference unit display device according to the invention of claim 5;

FIG. 15 is a diagram for explaining the operation of the apparatus shown in FIG.

FIG. 16 is a functional block diagram showing another embodiment of the interference unit display device according to the invention of claim 5;

FIG. 17 is a diagram for explaining the operation of the apparatus shown in FIG.

FIG. 18 is a functional block diagram showing still another embodiment of the interference section display device according to the invention of claim 5;

FIG. 19 is a view for explaining the operation of the device shown in FIG.

[Explanation of symbols]

1 ... Interference check unit, 3 ... Interference unit confirmation availability determination unit, 6 ...
Interference part area display part, 7 ... Screen enlargement display part, 21 ... Child screen display frame creation part, 22a to 22c ... Drawing creation part viewed from each direction, 32 ... Interference part balloon display part, 42 ... Pair article model display control Part, 51 ... Congestion status judging part, 61 ... Volume clipping part.

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Yusuke Komori No. 1 Toshiba-cho, Fuchu-shi, Tokyo Toshiba Corporation Fuchu factory

Claims (5)

[Claims] 1. An interference part display device for displaying an interference part between article models when there is an interference part between article models including a plurality of members, parts, articles, etc., Interference part confirmation possibility judgment means for judging whether or not the interference part can be confirmed on the screen, and when it is judged by this judgment means that the interference part is difficult to confirm, the representative point of this interference part is selected, Interference portion area display means for displaying a predetermined area surrounding the interference portion with a representative point as a mesh, and the interference portion area display means for displaying the mesh of the interference portion after the shaded display. An interference unit display device comprising: a screen enlargement display unit for displaying. 2. An interference part display device for displaying an interference part between article models when there is an interference part between article models including a plurality of members, parts, articles, etc., Interference part confirmation possibility judgment means for judging whether or not the interference part can be confirmed on the screen, and when it is judged by this judgment means that the interference part is difficult to confirm, the representative point of this interference part is selected, Interference portion area display means for displaying a predetermined area surrounding the interference portion with a representative point as a center, and after creating a halftone display by the interference portion area display means, creating a child screen of the interference portion viewed from a plurality of directions. An interfering section, comprising: a sub-screen creating unit for enlarging the sub-screen and a sub-screen enlarging display unit for enlarging and displaying a plurality of sub-screens created by the sub-screen creating unit on one screen of the display unit at the same time. Display . 3. An interference part display device for displaying an interference part between article models when there is an interference part between article models including a plurality of members, parts, articles, etc. Interference part position specifying means for obtaining the position of the interference part existing between, and balloon display position determining means for obtaining the balloon display position on the screen corresponding to the positional relationship of the interference parts obtained by the interference part position specifying means, An interference part balloon display device for displaying a balloon at the balloon display position obtained by the balloon display position determination device from the interference part position, and an interference part display device. 4. An interference part display device for displaying an interference part between article models when there are interference parts between article models including a plurality of members, parts, articles, etc., and at least three article models. Are interfering with each other,
According to a pair article model selecting means for selecting a pair article model having an interference relationship and a setting order of the pair article model selected by the pair article model selecting means, this pair article model is set as an article model other than the pair article model. An interference unit display device comprising: an interference model pair display means for differently highlighting. 5. An interference part display device for displaying an interference part between article models when there is an interference part between article models including a plurality of members, parts, articles, etc., A region frame creating unit that selects a representative point of the interference unit and creates a predetermined region frame surrounding the interference unit around the representative point, a region frame created by the region frame creating unit, and each article component side. And a congestion determination unit that determines the congestion status of the interference unit based on the number of intersecting sides of the interference unit display device, and uses the determination unit as a determination index whether or not to enlarge and display the interference unit based on the determination result. .