JP5034900B2 - Design support apparatus and design support program - Google Patents

Description

  The present invention relates to a design support apparatus and a design support program for supporting welding design work.

  As is well known, automobile manufacturers, etc. use welding equipment classified as CAD (hereinafter referred to as design support equipment) to provide welding design work (work for creating welding drawings, control data for automatic welding equipment). Work to create).

  As such a design support apparatus, there is an apparatus (for example, refer to Patent Documents 2 and 3) that can automatically design a welding location based on various numerical data. However, a general design support device “selects the edges to be welded one by one from the mesh model with a mouse”, “selects the continuous edges to be welded by a rectangle from the mesh model” It is configured as a device that requires this (for example, see Patent Document 1). A design support apparatus capable of automatic / manual design is also configured as an apparatus that requires the same operation during manual design.

  And general welding design objects (automobiles, etc.) have curved surfaces (the mesh model has many side groups representing curved lines) and existing design support The apparatus is also an apparatus that requires the operator to manage the total number and length of the selected sides. For this reason, the existing design support apparatus often fails in the designated work of the welding location (side selection work).

JP 2004-330212 A JP 2002-45965 A JP-A-11-291039

  Accordingly, an object of the present invention is to provide a design support apparatus that makes it easier to specify a welding location (side selection work), and a design support program that can operate a computer as such a design support apparatus. It is in.

  In order to solve the above-described problems, a design support apparatus according to the present invention includes a display control unit that displays on a display a mesh model that represents the shape of an object by a set of plate elements having a plurality of sides, and a distance condition. When a search processing start instruction operation including a distance condition specifying operation to be specified and an edge specifying operation for specifying any side of the mesh model is performed, each side including the side specified by the edge specifying operation is included. A group of sides connected in order at the end points, the angle between two adjacent sides satisfies a predetermined condition (for example, 165 ° to 180 °), and the total length of each side is a distance condition designation operation A means for specifying the edge group that satisfies the distance condition specified by the mesh model from among the edges of the mesh model, and a result of specifying the edge group by this specifying means for storing in a readable form Storage means Is provided.

That is, in the design support apparatus of the present invention, the operator simply performs a search process start instruction operation including a distance condition specifying operation for specifying a distance condition and an edge specifying operation for specifying any side of the mesh model. It has a configuration in which the designation of the welding location is completed. Therefore, if this design support apparatus is used, “sides to be welded are selected from the mesh model one by one with the mouse”, “continuous sides to be welded are selected from the mesh model to be rectangular with the mouse” As compared with the case of using an existing design support apparatus that requires complicated / complex side designating operations such as those described above, the designating operation (side selection operation) of the welding location can be performed easily.

  Various means can be adopted as the specifying means of the design support apparatus of the present invention. For example, “means for specifying a group of sides including the side designated by the side designation operation at one end thereof” can be employed as the specifying unit. Further, as the specifying means, “when one point on the mesh model displayed on the display is specified, a means for recognizing that the side specifying operation for specifying the side closest to the specified point as the start side has been performed. And a group of edges whose other ends are connected to the end of the starting edge that is closer to the point on the mesh model specified during the edge specification operation. "Means" can also be adopted.

  It should be noted that the “distance condition designating operation for designating the distance condition” according to the present invention only requires that the side group specified by the specifying unit is finally defined by the sum of their lengths. As long as it is anything. For example, the operation actually performed as the “distance condition designating operation for designating the distance condition” can be set as the “operation for designating the welding distance” (Claim 4).

  Further, as a specifying means, when a continuous edge search processing start instruction operation including a two edge designation operation for designating any two edges of the mesh model is performed, the two edges designated by the two edge designation operation are set at both ends. It is easier to carry out welding design work by adopting a means to identify a group of connected sides that are included in the mesh model from the sides of the mesh model where the angle between two adjacent sides satisfies a predetermined condition. A design support apparatus can be realized.

  In addition, it is desirable for this type of apparatus to show the processing result to the operator. Therefore, when realizing the design support apparatus of the present invention, the display form of each side specified by the specifying means of the mesh model displayed on the display is changed to a display form different from the normal one. It is desirable to add search result presentation means.

  The design support program of the present invention is capable of operating a computer as the design support apparatus of the present invention (claim 1). Therefore, even if this design support program is used, it is possible to realize a work environment in which the welding spot designation work (side selection work) is easier than in the prior art.

  According to the present invention, it is possible to realize a work environment in which a welding spot designation work (side selection work) is easier than in the prior art.

  Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to the drawings.

  As schematically shown in FIG. 1, a design support apparatus 10 according to an embodiment of the present invention is an apparatus having a mesh model display function, a weld design support function, a weld drawing output function, and a control data output function. .

The design support apparatus 10 is an apparatus configured by installing a newly developed design support program on a computer (with an OS or the like already installed) to which a display, a keyboard, a mouse, and the like are connected. For this reason, below, description of the specific hardware configuration of the design support apparatus 10 is abbreviate | omitted, and only the content of each function provided to the design support apparatus 10 by the design support program is demonstrated.

  The mesh model display function given to the design support apparatus 10 by the design support program is a function for displaying the mesh model related to the object on the display based on the mesh data related to a certain object. Here, the mesh model is a model that represents an object by a set of plate-like elements having a plurality of sides (in this embodiment, usually quadrilateral elements; hereinafter referred to as plate elements). . The mesh data is data including various data necessary for displaying the mesh model (such as coordinate data of each vertex of various plate elements).

  This mesh model display function is based on mesh data on various storage devices (portable recording media, HDDs in its own device / other devices, etc.), and an arbitrary size (arbitrary scaling ratio) from an arbitrary viewpoint position. The mesh model can be displayed. That is, the mesh model display function is a function that can display the mesh model in a form as shown in FIG. 2 (a form in which only a part of the object is displayed on the display), for example.

  The welding design support function (FIG. 1) is a function that can be used to perform welding design (designation of a welding location, etc.). This welding design support function is a function (function used together with the mesh model display function) that is used in a state where the mesh model of the weld design object is displayed on the display.

  More specifically, the welding design support function is a function implemented in the design support apparatus 10 in the following manner.

  When the operator performs an operation for using the welding design support function, the design support apparatus 10 first displays the arc creation dialog box 20 having the configuration shown in FIG. 3 on the display (in the window related to the design support program). To do.

  When the continuous edge radio button 22 on the arc creation dialog box 20 is selected, when the mouse picks one point on the mesh model (designation using the mouse), the design support apparatus 10 performs the continuous edge search process ( Details are items to be started later.

  The side radio button 21 is an item for causing the design support apparatus 10 to perform the first search process or the second search process. Although the contents of each search process will be described later, the first search process is a process that is started by mouse-picking a point on the mesh model that requires the welding distance to be specified in advance. On the other hand, the second search process is a process that is started by mouse-picking two points on the mesh model that do not require designation of the welding distance.

  The check box 23 is an item for designating whether the search process to be performed by the design support apparatus 10 is a first search process that requires designation of a welding distance or a second search process that does not require designation of a welding distance. It is. The text box 24 is an item for setting a welding distance when the design support apparatus 10 performs the first search process (when the check box 23 is checked). The check box 23 is an item that is valid only when the side radio button 21 is selected, and the text box 24 is an item that is valid only when the check box 23 is checked. ing.

After completing the display of the arc creation dialog box 20, the design support apparatus 10 performs a setting operation for the arc creation dialog box 20 and an operation for the mesh model being displayed (one-point or two-point mouse pick operation on the mesh model). It will be in the state which monitors what is done. The design support apparatus 10 starts the search process instructed to start when an operation for instructing the start of any of the search processes is performed by the operator.

  Hereinafter, the contents of each search process (the operation contents of the design support apparatus 10 during each search process) will be described in order.

<< First search process >>
When the start of the first search process is instructed (when the side radio button 21 is selected and the welding distance is input in the text box 24, the design support apparatus 10 selects a point on the mesh model with the mouse pick. When the first search process is started, the first search process of the procedure shown in FIG. 4 is started.

That is, in this case, the design support apparatus 10 first initializes Lsum to “0” and searches for the plate element under the mouse pick position from the displayed mesh model (mesh data to be processed). The process (step S101) to perform is performed. Note that Lsum is a variable (predetermined storage area on the RAM) for storing the total sum of the lengths of the sides for which the search has been completed.

  When the board element under the mouse pick position cannot be searched in the process of step S101 (step S102; NO), the design support apparatus 10 displays an error message indicating that on the display (not shown). The first search process is terminated.

  On the other hand, when the board element under the mouse pick position can be searched (step S102; YES), the design support apparatus 10 specifies the side of the searched board element closest to the mouse pick position (step S103). )I do. In addition, the design support apparatus 10 stores in step S103 that the specified side is a side to be processed thereafter (hereinafter referred to as a target side), and the specified side can be searched. A process of storing as a completed edge (hereinafter referred to as a search edge) is also performed.

  In step S103, the design support apparatus 10 actually performs processing for specifying the identification information of the edge of the searched plate element closest to the mouse pick position, and for storing the identification information of the attention edge. A process of setting identification information of a specified side in a variable, and a process of storing the identification information of the specified side as identification information related to a search side. However, if such a description is performed for each step, the description becomes complicated. Therefore, the following description of the operation content of the design support apparatus 10 is also performed in a form in which the description related to “identification information” is omitted. .

  The design support apparatus 10 that has finished the process of step S103 obtains the point closest to the mouse pick position on the attention side (step S104), and then the end point of the attention side closer to the obtained point It is stored that it is an end point to be processed (hereinafter referred to as an end point of interest) (step S105).

  Thereafter, the design support apparatus 10 performs a process of identifying all adjacent sides of the target side (step S106). Here, the adjacent side of the target side is a side of another plate element (a plate element having no target side) whose one end point coincides with the target end point.

  When one or more adjacent sides can be identified in the process of step S106 (step S107; YES), the design support apparatus 10 calculates an inclination angle of the identified adjacent sides with respect to the target side (step S108). In the present specification, the inclination angles of the adjacent sides with respect to the target side are the angles α and β in FIG. That is, the inclination angle of the adjacent side with respect to the target side is an angle between the line segment extending the target side and the adjacent side.

  The design support apparatus 10 that has completed the process of step S108 (FIG. 4) includes a preset common range (for example, 0 ° to 15 °) in the calculated inclination angle (hereinafter also referred to as a calculated angle). It is determined whether or not there is an inner angle (step S109).

If there is an angle within the common range among the calculated angles (step S109; YES), the design support apparatus 10 sets the target side as the adjacent side with the minimum inclination angle (the adjacent side with the minimum inclination angle calculated). The process to change (step S110) is performed. In step S110, the design support apparatus 10 also performs a process of adding the length L of the attention side (adjacent side with the smallest inclination angle) after the change to Lsum.

  Thereafter, the design support apparatus 10 determines whether or not Lsum (Lsum value) is less than a designated welding distance (hereinafter referred to as a designated distance) (step S111).

When Lsum is less than the specified distance (step S111; YES), the design support apparatus 10
Stores the target side as a search side, and changes the target end point to the end point of the target side that does not match the target end point (step S112). Then, the design support apparatus 10 returns to step S106, and starts a process of setting a side / end point different from the previous time to be the target side / end point.

If Lsum becomes greater than or equal to the specified distance while the processes of steps S106 to S112 are repeated (step S111; NO), the design support apparatus 10 subtracts L from Lsum when Lsum> specified distance. If Lsum = designated distance, a process of storing the target side as a search side is performed (step S113). Note that the process of step S113 is performed because the process of steps S106 to S112 is a process in which the value of Lsum and the sum of the lengths of the search sides do not match at the time of determination in step S111. Because.

  The design support apparatus 10 that has finished the process of step S113 starts a search result presentation process (step S114; details will be described later). In addition, the design support apparatus 10 fails to specify the adjacent side (step S107; NO), or can specify the adjacent side, but the inclination angle of any adjacent side is not within the common range ( Also in step S109; NO), the search result presentation process (step S114) is started.

  The design support apparatus 10 that has started the search result presentation process first displays each side stored as a search side of the displayed mesh model in a special display form (in this embodiment, red). Perform display processing.

  As is clear from the processing procedure described above, the first search process specifies the side and end point close to the mouse pick position as the first target side and target end point, and then sets the target side and target end point adjacent to the target side. By changing to an end point that is different from the current target end point of the side or the adjacent side, the side is searched. In other words, the first search process is a process of searching for an edge in the direction specified by the first mouse pick position, as schematically shown in FIGS. 6 (A) and 6 (B). ing.

  The search edge display process is a process of displaying each edge searched in such a form in a special display form, that is, a process of changing the display content of the display to the one shown in FIG. Yes. In the screen example shown in FIG. 7, a white arrow (white arrow) for indicating the mouse pick position and a black arrow for indicating the side search direction are added to the actual screen example. Is.

  The design support apparatus 10 that has finished the search side display processing waits for an operator to perform a length display instruction operation, a data storage instruction operation, and an end instruction operation (all of which have an operation procedure defined). Migrate to However, if the design support apparatus 10 starts the search result presentation process by branching to “NO” in step S107 or S109, the search result is set to the specified distance before the state is shifted to the state. A process of displaying a message indicating that it is not satisfied on the display is performed.

  When the length display instruction operation is performed, the design support apparatus 10 performs a process of displaying the Lsum value and the specified distance on the display. The reason why the Lsum value and the specified distance can be displayed is as follows. As is apparent from the processing procedure described above, the first search process is a process for searching for a group of edges whose length sum is not more than the specified distance and is closest to the specified distance and continuous at the end points. . Therefore, when searching for an edge by the first search process, as shown in FIG. 8, the value of Lsum (25 mm in the figure) may not match the specified distance (28 mm in the figure). For this reason, by enabling the display of the Lsum value and the specified distance, the operator can check the specified distance and the sum of the lengths of the searched sides (= Lsum value). It is.

When a data storage instruction operation is performed, the design support apparatus 10 stores data indicating a stored search side group, a specified distance, a value of Lsum, etc., and data for specifying one welding location (hereinafter referred to as “data”). Data storage processing to be stored on the HDD as the welding location data). This data storing process is a process of storing the welding location data in a form in which the correspondence with the mesh data is understood.

  When the end instruction operation is performed, the design support apparatus 10 ends the search result presentation process and ends the first search process (the process of FIG. 4).

《Continuous edge search processing》
When the start of the continuous edge search process is instructed (when the continuous edge radio button 22 is selected and one point on the mesh model is mouse-picked), the design support apparatus 10 is shown in FIG. Start the continuous edge search process.

  That is, in this case, the design support apparatus 10 first performs a process (step S201) of searching for a plate element under the mouse pick position from the displayed mesh model (mesh data to be processed).

  If the design support device 10 cannot find the plate element under the mouse pick position (step S202; NO), an error message indicating that fact is displayed on the display (not shown), This continuous edge search process is terminated.

  On the other hand, when the board element under the mouse pick position can be searched (step S202; YES), the design support apparatus 10 performs the processes of steps S103 to S105 already described in order to determine the first attention side and the attention end point. The same processing is performed (steps S203 to S205).

  Thereafter, the design support apparatus 10 performs a process of specifying all adjacent sides of the target side (step S206). When the design support apparatus 10 can identify one or more adjacent sides (step S207; YES), the design support apparatus 10 calculates an inclination angle (see FIG. 5) of the specified adjacent sides with respect to the target side (step S208). ).

The design support apparatus 10 that has calculated the tilt angle related to each adjacent side determines whether or not the calculated tilt angle includes an angle within a preset common range (for example, 0 ° to 15 °). (Step S209).

  If there is an angle within the common range among the calculated angles (step S209; YES), the design support apparatus 10 performs a process of storing the attention side as a search side in step S210. In step S210, the design support apparatus 10 changes the target side to the adjacent side with the minimum inclination angle, and sets the target end point to the target end point of the target side (adjacent side with the minimum tilt angle). A process of changing to the end point that is not done (the end point that is not connected to the attention side before the change) is also performed.

  Then, the design support apparatus 10 that has finished the process of step S210 returns to step S206, and starts a process of setting a side / end point different from the previous one to be the target side / target end point.

  The design support apparatus 10 performing the continuous edge search processing fails to specify such an adjacent edge (step S207; NO), or cannot find an adjacent edge whose inclination angle is within the common range (step S209). Repeat until NO).

  When the design support apparatus 10 is in any state (step S207; NO, step S209; NO), the design support apparatus 10 performs a search result presentation process (step S211).

The search result presentation process performed in step S211 is substantially the same as the search result presentation process (FIG. 4, step S114) performed during the first search process. That is, the search result presentation process performed in step S211 is a process in which the search edge display process for changing the display content on the display to, for example, the one shown in FIG. 11 is performed first. However, since the continuous edge search process is a process in which the search target is not limited by the welding distance (sum of the lengths of the edges), the search result presentation process in step S211 welds data that does not include the Lsum value and the specified distance. It is processing to save as location data. Further, the search result presentation process is a process that does not have a display function such as the sum of the lengths of the searched sides.

  Then, when the end instruction operation is performed, the design support apparatus 10 ends the search result presentation process and the continuous edge search process, and shifts to a state of waiting for various instruction operations by the operator.

<< Second search process >>
The design support apparatus 10 is instructed to start the second search process (when the radio button 21 is selected and the check box 23 is not checked and a point on the mesh model is picked by the mouse) First, the second search process of the procedure shown in FIG. 11 is started.

  In other words, in this case, the design support apparatus 10 first searches for a plate element (two plate elements) under each mouse pick position from the currently displayed mesh model (mesh data to be processed) ( Step S301) is performed.

  If the design support apparatus 10 cannot search for two plate elements (step S302; NO), an error message indicating that fact is displayed on the display (not shown), and then 2 The search process is terminated.

  On the other hand, when two plate elements can be searched (step S302; YES), the design support apparatus 10 firstly, in step S303, for each mouse pick position, is closest to the mouse pick position of the searched plate element. Perform processing to specify the edge. Next, the design support apparatus 10 performs a process of storing that the specified one side (in this embodiment, the side close to the first mouse pick position) is the start side and the other side is the end side.

  Thereafter, in step S304, the design support apparatus 10 has the start side as the target side, the end points closer to the end side of the start side are the start end point and the target end point, and is close to the start side of the end side. The process of memorizing that the other end point is the end end point is performed. Further, in step S305, the design support apparatus 10 determines that “the distance between the end point of the start side that is different from the start end point and the end side of the end point that is different from the end end point”. A distance is obtained, and 2 × distance between remote endpoints is stored as a search upper limit distance.

  In short, the design support apparatus 10 performs processing for setting values for various processing parameters (such as “start side”) so as to indicate the state shown in FIG.

  Thereafter, the design support apparatus 10 performs a process of specifying all adjacent sides of the target side (step S306).

  When one or more adjacent sides can be specified (step S307; YES), the design support apparatus 10 performs a process (step S308) of calculating an inclination angle (see FIG. 5) with respect to the target side of each specified adjacent side. . In addition, when the calculated inclination angle is an angle within the common range in step S308, the design support apparatus 10 stores the inclination angle in a form in which the correspondence relationship between the adjacent side and the target end point is known. Processing is also performed.

  Then, when the design support apparatus 10 finds one or more adjacent sides whose inclination angle with respect to the target side is within the common range in the process of step S308 (step S309; YES), the design support device 10 determines the target end point as the inclination angle. Is changed to the end point different from the current target end point, and the target side is changed to the adjacent side (step S310). In step S310, the design support apparatus 10 also performs a process of calculating the total length of each side (details will be described later) from the starting end point to the current target side as Lsum.

Thereafter, the design support apparatus 10 compares Lsum and the search upper limit distance (step S311). If Lsum is less than the search upper limit distance (step S311; YES), the target end point matches the end end point. It is determined whether or not (step S312). If the target end point does not coincide with the end end point (step S312; NO), the design support apparatus 10 returns to step S306 and sets a side / end point different from the previous one as the target side / target end point. Start the process.

  If the target end point coincides with the end end point while repeating the processing as described above (step S312; YES), the design support apparatus 10 performs search result presentation processing (step S313). This search result presentation process is substantially the same as the search result presentation process performed during the continuous edge search process. However, in the search result presentation processing performed in step S313, each side from the start end point to the current attention side (details will be described later), the start side, and the end side are handled as search sides.

  On the other hand, when the adjacent side fails to be identified before the end point of interest coincides with the end point (step S307; NO), the design support apparatus 10 backs the end point of interest in an unevaluated side (attention side A process of searching for an end point in which a side that has not been treated as a left) remains is performed (step S314).

For example, when the process performed in step 314 is executed under the condition that the end point 4 in FIG. 13A is the target end point, as shown in FIG. In this order (in the form of backing the end point of interest), it is checked whether or not there is an unevaluated side remaining at each end point, and the end point 2 where the unevaluated side remains is used as a search result. . This process
This is a process of determining the presence or absence of an unevaluated side based only on the side where the tilt angle is calculated and stored in the process of step S308 (the side where the tilt angle within the common range is calculated). Further, the process of step S312 is also a process of searching for an unevaluated side having the smallest inclination angle.

  Then, the processing in the above-described steps S310 and S313 is performed only on “each side from which the target end point has moved but the target point has not returned”, as “each side from the start end point to the current target side”. It is a process to handle as.

  If the end point or the like could not be searched for in the process of step S314 (step S315; NO), the design support apparatus 10 displays an error message to that effect on the display (not shown), and then performs this second search. The process ends.

  On the other hand, when the end point or the like can be searched (step S315; YES), the design support apparatus 10 changes the attention side to the searched unevaluated side in step S316, and changes the attention end point to the attention side ( A process of changing to an end point that does not coincide with the end point searched is performed. And the design support apparatus 10 which finished the process of step S316 starts the process after step S306.

  That is, for example, in the situation shown in FIG. 13B, the design support apparatus 10 changes the target side to the side between the end point # 5 and the end point # 2, and sets the target end point to the end point # 5. The process of changing to is performed in step S316. Then, the design support apparatus 10 starts the processing from step S306 onward in order to search the target side and the side connected by the end point # 5.

  Returning to FIG. 1, the contents of the welding drawing output function and the control data output function of the design support apparatus 10 will be described.

  The welding drawing output function possessed by the design support device 10 is connected to the design support device 10 by generating print data for welding drawings based on the above-mentioned welding location data and mesh data corresponding thereto. This is a function for transmitting to a printing apparatus (large format printer / plotter). This welding drawing output function can specify a portion to be printed as a welding drawing while confirming on the display.

  The control data output function is a function for generating and outputting control data for an automatic welding apparatus from welding location data and mesh data. This control data output function is a function capable of storing the generated control data on a designated storage device.

  As described above in detail, the design support apparatus 10 according to an embodiment of the present invention specifies the length of each side by mouse-picking a point on the display (mesh model) after specifying the welding distance. This is a device that starts searching for a continuous group of edges starting from the nearest edge of the mouse pick position where the sum of the values is almost equal to the specified welding distance. The design support apparatus 10 is also an apparatus (an apparatus for determining an edge search direction from a mouse pick position; see FIG. 6) that does not require the edge search direction to be specified separately.

  Therefore, it can be said that the design support device 10 is a device that makes it easier to specify a welding location (side selection operation) than an existing design support device that requires complicated / complex side specification operations. I can do it.

<Deformation>
The design support apparatus 10 described above can perform various modifications. For example, when the design support apparatus 10 is designated with a welding distance and a start side, a side group that includes the start side in the center portion and the total sum of the lengths of the sides substantially coincides with the designated welding distance. Can be transformed into a device that can also perform the process of searching. Further, the design support device 10 is a device that searches for a group of sides whose total length of each side matches the specified welding distance / a little longer than the specified welding distance (first search including the last target side in the search result). It can also be modified to a device that executes processing.

  Furthermore, the design support device 10 can be used to automatically store the edge search results, or to a device whose specific procedure for each search process is different from that described above (for example, two sides specified by the breadth-first search method). It can also be transformed into a device that searches for continuous edges included at both ends thereof. Further, the design support device 10 is changed to a device having a specific procedure for starting operation of each search process different from that described above, a device having a dialog box configuration for designating a welding distance different from that described above, or the like. It can also be transformed.

Explanatory drawing of the design support apparatus which concerns on embodiment. Explanatory drawing of the mesh model which the design support apparatus which concerns on embodiment displays on a display. Explanatory drawing of the arc creation dialog box which the design support apparatus which concerns on embodiment displays on a display. The flowchart of the 1st search process which the design support apparatus which concerns on embodiment performs. Explanatory drawing of an inclination angle. Explanatory drawing of the search direction of the edge | side in a 1st search process. The figure for demonstrating the processing result / processing content by a 1st search process. Explanatory drawing of the relationship between the search result by a 1st search process, and designated distance. The flowchart of the continuous edge search process which the design support apparatus which concerns on embodiment performs. The figure for demonstrating the processing result / processing content by a continuous edge search process. The flowchart of the 2nd search process which the design support apparatus which concerns on embodiment performs. Explanatory drawing of the various parameters used by a 2nd search process. Explanatory drawing of the process performed by step S314 during a 2nd search process.

Explanation of symbols

10 Design Support Device 20 Arc Creation Dialog Box 21 Side Radio Button 22 Continuous Side Radio Button 23 Check Box 24 Text Box

Claims (7)

Display control means for displaying a mesh model representing the shape of an object as a set of plate elements having a plurality of sides on a display;
When a search processing start instruction operation including a distance condition specifying operation for specifying a distance condition and an edge specifying operation for specifying one of the sides of the mesh model is performed, the edge specified by the edge specifying operation is A group of sides connected in sequence at the end points of each side, the angle between two adjacent sides satisfies a predetermined condition, and the total length of each side is designated by the distance condition designation operation Identifying means for identifying a group of sides satisfying the distance condition from among the sides of the mesh model;
A design support apparatus comprising: storage means for storing the result of specifying the side group by the specifying means in a readable form. The specifying means is
The design support apparatus according to claim 1, wherein the design support apparatus is a means for specifying a side group including a side designated by the side designation operation at one end thereof. The specifying means is
When one point on the mesh model displayed on the display is designated, the means for recognizing that the side designation operation for designating a side closest to the designated point as a start side has been performed,
Specify the side group in which the other side is connected to the end point side of the start side that is closer to the point on the mesh model specified at the side specifying operation and includes the start side at one end thereof The design support apparatus according to claim 1, wherein the design support apparatus is a means. The specifying means is
When the operation for designating the welding distance is performed, if one side is added, the condition that the total sum of the lengths of the respective sides exceeds the designated welding distance is designated as the distance condition. The design support apparatus according to claim 1, wherein the design support apparatus is a recognition unit. The specifying means is
When a continuous edge search processing start instruction operation including a two-side specifying operation for specifying any two sides of the mesh model is performed, connected edges including two sides specified by the two-side specifying operation at both ends The group according to any one of claims 1 to 4, wherein a group of sides in which an angle between two adjacent sides satisfies a predetermined condition is specified from the sides of the mesh model. Design support device. Search result presentation means for changing the display form of each side specified by the specifying means of the mesh model displayed on the display to a display form different from a normal one is further provided. The design support apparatus according to claim 1. Computer
Display control means for displaying on the display a mesh model representing the shape of the object as a set of plate elements having a plurality of sides;
When the welding distance and one side of any plate element of the mesh model are specified,
A side group that includes the specified side and is connected in order at the end points of each side, and the side group that constitutes the mesh model is a side group in which the angle between two adjacent sides satisfies a predetermined condition Identification means to identify from among,
A design support program which is operated as a device including storage means for storing a side group specification result by the specification means in a readable form.

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