JP2012118829A - Drawing creation support system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problem that, when automatically drawing a dimension line in a conventional drawing creation support system, it is necessary for a user to individually set a dimension line drawing rule in accordance with a target or kind of a drawing.SOLUTION: A drawing creation support system is provided which includes: dimension line drawing rule extraction means which captures a drawing in which a graphics and dimension lines of the graphics are drawn, and extracts a rule for drawing the dimension lines from the drawing; a dimension line drawing rule database which stores the dimension line drawing rule; dimension line drawing rule displaying/editing means which displays and corrects the dimension line drawing rule stored in the dimension line drawing rule database; and dimension line drawing means which reads a drawing in which drawing of dimension lines is desired and, on the basis of the dimension line drawing rule stored in the dimension line drawing rule database, draws dimension lines in the read drawing.

Description

  The present invention relates to a drawing creation support system having a function of automatically drawing dimension lines.

  As a prior art that supports drawing of a dimension line, there is an automatic dimension line creating apparatus described in Patent Document 1.

  In the prior art described in Patent Document 1, fuzzy inference is performed by a shape recognition device, and the shape of the drawing is recognized based on the given drawing information. The shape can be correctly recognized even if they are separated. In addition, the shape-recognized data is grouped for each drawing element that should be aligned on the same straight line by the grouping device. Furthermore, the drawing rule of the dimension line is defined for every shape by the fuzzy rule, and the dimension line is drawn according to these fuzzy rules.

  According to this prior art, there is a slight error in the shape information drawn in the drawing, and it is possible to draw a dimension line at an appropriate position even when the line segments are separated. Further, since the dimension lines are appropriately grouped, correction is easy. Furthermore, since the dimension line drawing rules are defined by specific fuzzy rules, it is easy to check and correct the dimension line drawing rules.

JP-A-7-98720

  However, when a dimension line is inserted into the shape on the drawing, there may be a specific rule depending on the object and type of the drawing. When drawing dimension lines using the prior art, it was necessary to modify and reconstruct fuzzy rules according to these unique rules. One of the objects of the present invention is to efficiently draw by applying a drawing rule as a model to a drawing having no dimension line.

  A feature of the present invention is that a dimension line drawing rule extracting unit extracts a rule for drawing a dimension line from a model drawing, and the dimension line drawing unit draws a dimension line using the extracted dimension line drawing rule. Draw a dimension line on the drawing you want.

  According to the present invention, it is possible to draw efficiently by applying a drawing rule as a model to a drawing having no dimension line.

The figure which shows the structure of the 1st Example of this invention. The figure which shows an example of a dimension line drawing rule. The figure which shows the algorithm of a normal drawing rule extraction means. The figure which shows the example of a shape and a dimension line. The figure which shows the example of an individual rule and a high-order rule. The figure which shows the example of a metarule. The figure which shows the example of a screen of a dimension line drawing rule display and edit means and a dimension line drawing means. The figure which shows the example which displayed only the high-order rule on the screen of FIG. The figure which shows the algorithm of the dimension line drawing means. The figure which shows the example of the result of having drawn the dimension line. The figure which shows the structure of the 2nd Example of this invention. The figure which shows the example of a screen of the dimension line rule comparison means 50. FIG.

  Hereinafter, it demonstrates using drawing.

  FIG. 1 shows an outline of a drawing creation support system according to the first embodiment of the present invention. The drawing creation support system is configured by a computer.

  The drawing creation support system according to this embodiment includes a dimension line drawing rule extraction unit 10, a dimension line drawing rule database 20, a dimension line drawing rule display / editing unit 30, and a dimension line drawing unit 40.

  The dimension line drawing rule extraction means 10 takes a figure and a drawing on which the dimension line of the figure is drawn, and extracts a dimension line drawing rule from the drawing data including the shape and the dimension line. There are two cases of drawing drawing: reading drawing data that has been converted to data, and drawing data of a paper drawing by a drawing reading device such as a scanner. The dimension line drawing rule database 20 stores the dimension line drawing rules extracted by the dimension line drawing rule extracting means 10. The dimension line drawing rule display / editing means 30 displays the dimension line drawing rules stored in the dimension line drawing rule database 20, and edits the dimension line drawing rules as necessary. The dimension line drawing means 40 reads the shape data drawn in the drawing in which the dimension line is to be drawn, and the drawing in which the dimension line is to be drawn from the read shape data information and the dimension line drawing rule stored in the dimension line drawing rule database 20. Draw a dimension line on

  Each of these means will be described in detail below.

  The dimension line drawing rule extraction means 10 extracts a dimension line drawing rule from the drawing data. An example of the dimension line drawing rule is shown in FIG. “Target 1” and “Target 2” indicate how long the dimension line is. Since the dimension line displays the length between two points, the two points are represented as “target 1” and “target 2”. “Dimensional direction” represents the length of “target 1” or “target 2”. For example, the horizontal direction, the vertical direction, and the diagonal direction. In general, software for drawing a drawing defines coordinate axes, and therefore may be expressed in the x-axis direction and the y-axis direction. “Display position” is a position where a dimension line is drawn. For example, in the case of a dimension line in the horizontal direction, the display position is represented by a vertical deviation. For example, in the case of “100”, the position is 100 away in the upward direction, and in the case of “−200”, the position is 200 away in the downward direction. The “rule pattern” is a rule pattern for drawing a dimension line. Examples of the “rule pattern” are “adjacent”, “both ends”, and the like. In the case of “adjacent”, the dimension lines of all “object 1” and “object 2” adjacent to each other are drawn. In the case of “both ends”, when “target 1” and “target 2” are arranged in a plurality of lines, dimension lines are drawn only on “target 1” and “target 2” at both ends.

  FIG. 3 shows an algorithm of the dimension line drawing rule extraction means. Each step will be described below.

  In Step 101, a dimension line drawn in the drawing is extracted. Here, the drawing is a drawing drawn using CAD software such as AutoCAD. In general, in such drawings, dimension lines are drawn as dimension line objects. Therefore, the dimension line extraction means 11 extracts dimension lines by extracting dimension line objects from the drawing. If the dimension lines are not drawn as dimension line objects but are drawn as figure data based on a certain definition, those figure data are extracted. In the following description, the dimension line is described only when it is a dimension line object.

  In Step 102, the shape data and the part thereof with the dimension line extracted by the dimension line extraction means 11 are extracted. In the example of FIG. 4, since a dimension line is drawn on the side AD of the rectangle ABCD, the shape data from which the dimension line is drawn is the rectangle ABCD. First, the coordinates of the end points 1 and 2 of the auxiliary line of the dimension line are acquired. When a dimension line is entered in a general drawing creation CAD, the coordinates of the end points can be easily obtained. Next, the graphic data to which the acquired coordinates are connected is extracted. From the relationship between the area of the graphic data and the end point coordinates, it is determined that the end points 1 and 2 are in contact with the rectangle ABCD, and the rectangle ABCD is extracted.

  In general, graphic data is drawn as graphic data such as line segments, circles, or a combination of them, or a user-defined block (a combination of a plurality of graphic data and Are drawn as graphic data (hereinafter referred to as graphic block data). The graphic data extracted in this step covers all these graphic data.

  Next, a “part” to which the dimension line is connected is extracted. In the example of FIG. 4, the “part” to which the end point 1 is connected is “upper left”, and the “part” to which the end point 2 is connected is “upper right”. Thus, the “part” is determined from the coordinates of the end point, the coordinates of the extracted shape, and the definition of the “part” of the shape. Note that the end point 1 is connected to the point A, but if the point A is defined as “upper right”, the “part” is defined as “upper right” and is defined as the “right end” having no upper and lower relationship. In this case, the “part” is the “right end”. That is, even at the same position, different “parts” are extracted by definition.

  In Step 103, “dimension direction” is acquired. In the example of FIG. 4, since it is parallel to the x-axis, it is “X-axis direction”.

  In Step 104, “display position” is acquired. In the example of FIG. 4, when the distance from the end point of the auxiliary line to the dimension arrow is 100, “100” is obtained. This distance can also be easily obtained by general drawing drawing software.

  In Step 105, a rule pattern is acquired. In the example of FIG. 4, since the width of one shape is displayed, the “same shape” is obtained. This is a rule that the dimension line of “part” “upper right” and “upper left” is drawn only in the same shape. This is a rule for distinguishing from the rule for drawing the “upper right” and “upper left” dimension lines of adjacent rectangles when a plurality of rectangles are arranged.

  Through the above steps, the rule of the dimension line can be extracted. The dimension line drawing rule extracting unit can efficiently and automatically extract the dimension line drawing rule from the drawing in which the dimension line of the model drawing is drawn.

  Next, the dimension line drawing rule database 20 will be described. In the dimension line drawing rule database 20, the dimension line drawing rule and the meta rule extracted by the dimension line drawing rule extracting means 10 are stored. Since the dimension line drawing rule has already been described, description thereof is omitted. A meta rule is a rule for creating and processing a dimension line drawing rule.

  The rule for creating the dimension line drawing rule is, for example, a rule for determining the “rule pattern” of the dimension line drawing rule. Whether the “rule pattern” is “adjacent” or “same shape” is determined by the dimension line drawing rule extraction means 10, but the rule that is the basis for the determination is stored in the dimension line drawing rule database 20. .

  The rule for processing the dimension line drawing rule is, for example, a rule for creating an upper rule from the extracted individual rule. The individual rules and the upper rules will be described with reference to FIG. FIG. 5 illustrates two examples of individual rules. The difference between Example 1 and Example 2 is whether “object 1” is “layer 1. part A1. Reference point” or “layer 1. part A2. Reference point”. That is, whether the part is the part A1 or the part A2 is different. On the other hand, in the example of the upper rule, “object 1” is “layer 1. part A. reference point”. In other words, there is no distinction as to whether the part is A1 or A2, and the rule is based on the superordinate concept of part A.

  FIG. 6 shows an example of a meta rule for creating a higher level rule from the individual rule in this way. Here, meta-rules relating to the inclusion relationship of “target” and the inclusion relationship of parts are shown as meta-rules. One example of the target inclusion relationship is “part A ← part A1, part A2, part A3”, which means that “part A1”, “part A2”, and “part A3” are all “part A”. It shows that it can be expressed by the higher level concept. Therefore, if this rule is used, it is possible to create a rule relating to the upper part A from the rules relating to the individual parts A1 and A2.

  As another example of the meta rule, an example of the meta rule related to “part” will be described. An example is the meta rule “Right end ← Upper right end, Lower right end”, which indicates that the “part” called “upper right end” and “lower right end” can be expressed by the superordinate concept “part” called “right end”. Yes. Therefore, when this rule is used, it is possible to create a rule that is included in the rule relating to the “part” such as the upper “right end” from the rule relating to the individual rules “upper right end” and “lower right end”.

  Next, the dimension line drawing rule display / editing means 30 will be described. The dimension line drawing rule display / editing means displays the extracted rules to check the contents of the rules, and corrects the rules as necessary. Also, a dimension line corresponding to the displayed rule is confirmed on the drawing.

  FIG. 7 shows a screen example of the dimension line drawing rule display / editing means 30. Although this screen is a screen common to the dimension line drawing means 40, only operations relating to the dimension line drawing rule display / editing means 30 will be described here.

  In FIG. 7, the dimension line drawing rules are displayed hierarchically. In the example of FIG. 7, four rules are displayed. Of the four rules, only the second rule is an upper rule, and the other rules are individual rules.

  When the displayed rule is an upper rule, that is, when there is a lower rule of the rule, an expansion button and a lower rule ratio are displayed at the head of the rule. Click the expand button to display or hide the subordinate rules. An example of a screen in which the lower rule is hidden is as shown in FIG. The lower rule ratio indicates how much the actually extracted rule is with respect to the upper rule. In the example of FIG. 7, a rule related to the part A is created as an upper rule from the rules of the lower part A1 and the part A2. Since it is known in the meta-rule that there are three parts A1, part A2, and part A3 in the category of part A, two of the individual rules are included. Therefore, the lower rule ratio is “2/3”. If the inclusion relation is defined by the meta rule, if the individual rule is 1, the higher-level rule can always be created. For example, in the example of FIG. 7, even if only the part A1 is used, the same upper rule can be created, and the lower rule ratio can be displayed as “1/3”. However, in actuality, it is unclear whether only one individual rule is an effective rule for drawing, so in this example, when the lower rule ratio is 1/2 or less, the upper rule Did not create. This standard is described as a meta rule in the dimension line drawing rule database 20 so that the user can edit it.

  When the edit button shown in FIG. 7 is pressed, the displayed rule can be edited. For example, in the example of FIG. 7, “layer 1” is added to all of “target 1” and “target 2” as layer information. This is because all of the target parts are on the level 1, but there are cases where it is desired to set a rule that is not actually related to the level. In this case, the portion of the layer can be blank and edited as “.part A. reference point”. Further, “100” as the “display position” is the position where the actual dimension line was drawn, but this can be corrected to “200” by the editing function. If it is desired to confirm the rule after editing, the changed rule is stored in the dimension line drawing rule database 20 when the confirm button is pressed.

  A check box is displayed in front of each rule in FIG. When the display button is pressed while at least one of the check boxes is checked, the dimension line drawn by the checked rule is highlighted on the drawing data. As shown in FIG. 7, if there is one check, only the dimension line drawn by that rule is highlighted. If there are two or more check boxes, all the dimension lines with check marks are highlighted. In addition, when the upper rule is checked, the lower rule is automatically checked. With this function, the validity of the extracted rules can be confirmed on the drawing. When it is desired to correct the automatically extracted rule, the dimension line drawing rule can be corrected by the dimension line drawing rule display / editing means as required.

  Finally, the dimension line drawing means 40 will be described. The dimension line drawing means 40 reads a drawing for drawing a dimension line, and draws the drawing of the dimension line to be drawn among the rules stored in the dimension line drawing rule database 20. The operation screen at this time is as shown in FIG. 7, and when the dimension line drawing button is pressed, a drawing process is executed. Drawing can be efficiently performed by applying the rules of a drawing as a model to a drawing having no dimension line.

  The algorithm of the dimension line drawing means 40 is shown in FIG.

  In Step 401, one of the dimension line rules to be drawn is selected from the dimension line drawing rules. All dimension line drawing rules are stored in the dimension line drawing rule database 20 and displayed on the screen shown in FIG. Check the top check box for the rule you want to draw. That is, in this step, one rule is selected from the checked rules.

  In Step 402, one “target 1” included in the selected dimension line drawing rule is selected. For example, in the example of FIG. 7, since “target 1” of the checked rule is “layer 1. part C 1 .reference point”, one part C 1 is selected.

  In Step 403, “Target 2” is selected according to the selected rule, and a dimension line is drawn. An example of the drawing is shown in FIG. In the example of the rule in FIG. 7, “target 2” is the part B, and the rule pattern is “adjacent”. Therefore, the adjacent part B is selected. In the example of FIG. 10, two parts B are drawn, but since there is one part B adjacent to the part C1, the lower part B is selected. Also, in the target dimension line drawing rule, the “part 1” of “target 1” and “target 2” are both “reference points”, the dimension orientation is “Y axis”, and the “display position” is “100”. is there. Since both the reference points of the parts C1 and B are the center, the dimension in the Y-axis direction of the center of each part is drawn at a position 100 away from the end point of the auxiliary line in the X-axis direction.

  In Step 404, it is searched whether “target 1” is in the drawing, and if the above steps are not executed for all “target 1”, the process returns to Step 402, and if all are executed, the process proceeds to Step 405.

  In Step 405, if the above steps are not executed for all the dimension line drawing rules to be dimension line drawn, the process returns to Step 401, and if all are processed, the process ends.

  With the above algorithm, it is possible to automatically draw a dimension line to be drawn.

  In addition, when a dimension line is added to the shape on the drawing, there may be a unique rule depending on the object and type of the drawing. When drawing dimension lines using the prior art, it was necessary to modify and reconstruct fuzzy rules according to these unique rules. However, if different types of drawings are read and processed in the drawing creation support system of the present embodiment, even if the drawing rule of the dimension line differs depending on the type of drawing, the rule can be changed efficiently and the dimension line can be automatically drawn. A drawing creation support system can be provided.

  FIG. 11 shows an outline of the second embodiment of the present invention. This embodiment comprises a dimension line drawing rule extracting means 10, a dimension line drawing rule database 20, a dimension line drawing rule display / editing means 30, a dimension line drawing means 40, and a dimension line rule comparing means 50. Among these means, except for the dimension line rule comparison means 50, is the same as that of the first embodiment, so that the description is omitted.

  The dimension line rule comparison unit 50 compares a plurality of dimension line drawing rules stored in the dimension line drawing rule DB and evaluates the conformity of the dimension line drawing rule.

  The operation of this embodiment will be described below. The present embodiment is a drawing creation support system having a function of checking whether dimension lines drawn in a plurality of drawings are drawn according to the same rule.

  First, the dimension line drawing rule is extracted by the dimension line drawing rule extracting means 10 from the reference drawing. The specific method of extraction is the same as in the first embodiment. The extracted dimension line drawing rules are stored in the dimension line drawing rule database 20 and edited by the dimension line drawing rule display / editing means 30 as necessary. Next, the drawing whose dimension line is to be checked is processed in the same procedure, and the extracted dimension line drawing rule is stored in the dimension line drawing rule database 20. However, at this time, the dimension line drawing rule display / editing unit 30 does not edit the dimension line drawing rule.

  Next, the dimension line rule comparison means 50 compares the reference dimension line drawing rule with the dimension line drawing rule of the drawing to be checked. FIG. 12 shows an operation screen of the dimension line rule comparison means 50. The operation screen is roughly divided into two. The reference dimension line drawing rule is displayed in the upper part, and the dimension line drawing rule to be checked is displayed in the lower part. The display method of the dimension line drawing rule is exactly the same as in FIG. Also, the contents of the rules shown at the top of FIG. 12 are exactly the same as the rules shown in the first embodiment. The rule-line drawing rule to be checked shown in the lower part is partially different from the rule shown in the upper part. There are two rules extracted as the dimension line drawing rules to be checked. Of these, the first rule is exactly the same as the first rule of the standard dimension line drawing rule. However, the second rule is a subordinate rule of the second rule of the standard dimension line drawing rule. That is, the reference drawing includes part A1 and part A2, and the upper rule is extracted. However, since only the part A1 is included in the drawing to be checked, the lower individual rule is extracted. However, considering that this lower rule is a part of the upper rule, it can be determined that the lower rule conforms to the standard dimension line drawing rule.

  In the relevance rate evaluation result, it is displayed how many percent of the rules to be checked conform to the standard rule. In the case of the present embodiment, since both of the two rules are matched, it becomes 100%.

  In addition, as a result of checking, if a part of the rule does not conform to the reference rule, the dimension line drawn by the rule that does not conform can be highlighted using the dimension line display button on this operation screen. . Therefore, when it is desired to delete the dimension line after confirming the dimension line, it is possible to efficiently correct the drawing by deleting it on the drawing creation software and drawing the new dimension line by the dimension line drawing means 40.

  In addition, this invention is not limited to an above-described Example, Various modifications are included. For example, the above-described embodiments have been described in detail for easy understanding of the present invention, and are not necessarily limited to those having all the configurations described. In addition, a part of the configuration of a certain embodiment can be replaced with the configuration of another embodiment, and the configuration of another embodiment can be added to the configuration of a certain embodiment. Further, it is possible to add, delete, and replace other configurations for a part of the configuration of each embodiment.

  Each of the above-described configurations, functions, processing units, processing means, and the like may be realized by hardware by designing a part or all of them with, for example, an integrated circuit. Further, each of the above-described configurations, functions, and the like may be realized by software by interpreting and executing a program that realizes each function by the processor. Information such as programs, tables, files, measurement information, and calculation information for realizing each function is stored in a recording device such as a memory, a hard disk, or an SSD (Solid State Drive), or a recording medium such as an IC card, an SD card, or a DVD. Can be put in. Therefore, each process and each configuration can realize each function as a processing unit, a processing unit, a program module, and the like.

  Further, the control lines and information lines indicate what is considered necessary for the explanation, and not all the control lines and information lines on the product are necessarily shown. Actually, it may be considered that almost all the components are connected to each other.

DESCRIPTION OF SYMBOLS 10 Dimension line drawing rule extraction means 20 Dimension line drawing rule database 30 Dimension line drawing rule display / editing means 40 Dimension line drawing means 50 Dimension line rule comparison means

Claims (10)

Dimension line drawing rule extracting means for taking in a drawing in which a figure and a dimension line of the figure are drawn, and extracting a rule for drawing the dimension line from the drawing;
A dimension line drawing rule database for storing dimension line drawing rules;
A drawing creation support system comprising dimension line drawing means for reading a drawing for drawing a dimension line and drawing the dimension line in the read drawing based on the dimension line drawing rule stored in the dimension line drawing rule database .   2. The dimension line drawing rule according to claim 1, further comprising dimension line drawing rule display / editing means for displaying / correcting the dimension line drawing rule stored in the dimension line drawing rule database, extracting the dimension line drawing rule from the drawing, A drawing creation support system for displaying a rule extracted by a display / editing means.   3. The drawing creation support system according to claim 1 or 2, wherein, by extracting the dimension line drawing rule, a superordinate dimension rule of a superordinate concept including the individual dimension rule is created from the individual dimension rule extracted from the drawing. A drawing creation support system wherein the individual dimension rule and the upper dimension rule are displayed by the dimension line drawing rule display / editing means.   4. The drawing creation support system according to claim 1, which is displayed when at least one dimension line drawing rule is selected by the dimension line drawing rule display / editing means. 5. A drawing creation support system that highlights only dimension lines drawn by a selected dimension line drawing rule in a drawing. In claim 1,
Dimension line rule comparison means for comparing a plurality of dimension line drawing rules stored in the dimension line drawing rule database;
By comparing the dimension line drawing rule extracted from the target drawing for which the dimension line drawing rule is to be checked by the dimension line rule comparing means with the reference dimension line rule, the validity of the dimension line drawing rule of the target drawing is compared. A drawing creation support system characterized by evaluating the above. In claim 5,
In the evaluation of the validity by the comparison, if the dimension line drawing rule of the target drawing is not valid, the dimension line drawing means for deleting the invalid dimension line and drawing the dimension line is stored in the dimension line drawing rule database. A drawing creation support system for drawing a dimension line based on a stored correct dimension line drawing rule.   7. The drawing creation support system according to claim 5 or 6, wherein, by extracting the dimension line drawing rule, a superordinate dimension rule of a superordinate concept including the individual dimension rule is created from the individual dimension rule extracted from the drawing. An individual dimension rule and a higher dimension rule are displayed by the dimension line drawing rule display / editing means and the dimension line rule comparing means.   8. The drawing creation support system according to claim 5, which is displayed when at least one dimension line drawing rule is selected by the dimension line drawing rule display / editing means. A drawing creation support system that highlights only dimension lines drawn by a selected dimension line drawing rule in a drawing. Dimension line drawing rule extracting means for taking in a drawing in which a figure and a dimension line of the figure are drawn, and extracting a rule for drawing the dimension line from the drawing;
A dimension line drawing rule database for storing dimension line drawing rules;
The dimension line drawing rule extracting means extracts dimension line data from the drawing, extracts a shape and a part from which the dimension line is drawn, acquires a direction of the dimension, acquires a position of the dimension line, and acquires the dimension line. A drawing creation support system that extracts a rule pattern that is a rule pattern for drawing the dimension line based on a drawing rule. Dimension line drawing rule extracting means for taking in a drawing in which a figure and a dimension line of the figure are drawn, and extracting a rule for drawing the dimension line from the drawing;
A dimension line drawing rule database for storing dimension line drawing rules;
Dimension line rule comparison means for comparing a plurality of dimension line drawing rules stored in the dimension line drawing rule database;
By comparing the dimension line drawing rule extracted from the target drawing for which the dimension line drawing rule is to be checked by the dimension line rule comparing means with the reference dimension line rule, the validity of the dimension line drawing rule of the target drawing is compared. A drawing creation support system characterized by evaluating the above.

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