CN110428479B - Method for adaptively adjusting dimension marking error correction of two-dimensional engineering drawing of Solid works - Google Patents
Method for adaptively adjusting dimension marking error correction of two-dimensional engineering drawing of Solid works Download PDFInfo
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Abstract
The invention discloses a size labeling error correction self-adaptive adjusting method in a Solid works two-dimensional engineering drawing, which comprises the following steps: 1) Acquiring a view object; 2) Judging whether the size quantity in the current view size object is empty or not; 3) Acquiring a midpoint coordinate of a current view and a diagonal point coordinate of a view envelope frame; 4) Obtaining the annotation, the initial arrow and the end arrow coordinates of the view labeling dimension labeling text; 5) Classifying the sizes according to arrow coordinates marked by the sizes, and dividing the sizes into horizontal sizes, vertical sizes and other sizes; 6) According to the middle point coordinates and the diagonal point coordinates, layering and adjusting the horizontal size and the vertical size; 7) Performing interference judgment on all size labels; 8) And adjusting the other sizes of the interference adaptively. The method realizes the re-layout of the size labels in the two-dimensional engineering drawing and the standard adjustment of the spacing, effectively solves the problem of size label position interference in the two-dimensional engineering drawing which is quickly generated after the variant design, and is beneficial to the standardization of the drawing.
Description
Technical Field
The invention relates to the field of two-dimensional engineering drawings, in particular to a size labeling error correction self-adaptive adjusting method in a Solid works two-dimensional engineering drawing.
Background
In recent years, in the field of mechanical design, although three-dimensional model design is increasingly widely used, two-dimensional engineering drawings are still important bases for final output and production and processing of enterprise product design, and labeling information such as surface roughness, form and position tolerance, matching and size tolerance and the like which can be expressed by the two-dimensional engineering drawings is difficult to express and label by three-dimensional models.
At present, due to technical reasons, enterprises often adopt a mode of coexistence of three-dimensional modeling and two-dimensional engineering drawings when designing products. In the manual drawing of the two-dimensional engineering drawing, the distance between the dimension lines cannot be accurately controlled, so that the distance between the dimension lines is not equal, and the generated two-dimensional engineering drawing is not standard. On the other hand, in order to obtain a two-dimensional engineering drawing meeting production requirements quickly and improve the design efficiency of the two-dimensional engineering drawing, a method and a theory of parameterization quick design become a hotspot of current CAD research, but in the aspect of size marking, the problems of interference, overlapping and unequal intervals exist among size lines after model parameters are changed on the basis of an engineering drawing generated by parameterization model driving at present.
As shown in fig. 8, the following problems occur in manual rendering or rapid generation of parameterization:
(1) misalignment between dimension lines;
(2) overlapping interference occurs between dimension lines;
(3) the spacing between the dimension lines is unequal;
(4) the dimensioning interferes with the contour overlap.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a dimension marking error correction self-adaptive adjustment method for a two-dimensional engineering drawing of a Solid works.
The technical scheme for realizing the purpose of the invention is as follows:
a dimension marking error correction self-adaptive adjustment method for a Solid works two-dimensional engineering drawing comprises the following steps:
1) Obtaining a view object in Solid works, judging whether the view is empty, if so, ending the process, and obtaining again; if not, acquiring the current view object;
2) Judging whether the size quantity in the current view size object is empty, if so, acquiring the next view object, and executing the step 1 again); if not, continuing to execute the step 3);
3) Acquiring a midpoint coordinate of a current view and a diagonal point coordinate of a view envelope frame;
4) Acquiring annotation coordinates, initial arrow coordinates and end arrow coordinates of the view annotation dimension annotation text;
5) Classifying the sizes according to arrow coordinates marked by the sizes, and dividing the sizes into horizontal sizes, vertical sizes and other sizes;
6) Layering and adjusting the horizontal size and the vertical size according to the midpoint coordinate and the diagonal point coordinate obtained in the step 3);
7) Performing interference judgment on all size labels;
8) And adjusting the other sizes of the interference adaptively.
In step 3), the acquiring of the midpoint coordinate of the current view and the diagonal point coordinate of the view envelope frame includes the following steps:
3-1) acquiring a Current activation drawing by using a Get Current Sheet function;
3-2) obtaining a First View in the engineering drawing by using a Get First View function;
3-3) defining an array Outline (), and obtaining the diagonal coordinates of the current view envelope frame by using a Get Outline function;
3-4) defining an array Midpoint (), and obtaining the point coordinates in the current view by using a Position function;
3-5) obtaining the Next View by using a Get Next View function until all sizes of the current View are adjusted.
In step 4), the obtaining of the annotation coordinate, the start arrow and the end arrow coordinate of the view annotation dimension annotation text includes the following steps:
4-1) defining a variable Display Dimension, and obtaining the size in the current view by using a Get Display Dimensions () function;
4-2) defining a variable Annotation, and obtaining an Annotation text with the current size by using a Get Annotation function;
4-3) defining a variable Position, and obtaining the annotation coordinate of the current annotation text by using a Get Position () function;
4-4) define the array Arrow Head () and acquire the Arrow coordinates using the Get Arrow Head AtIndex2 () function, where Get Arrow Head AtIndex2 (0) is the acquisition start Arrow coordinate and Get Arrow Head AtIndex2 (1) is the acquisition end Arrow coordinate.
In the step 5), the size labels are classified according to the coordinates of a start arrow and the coordinates of an end arrow in the obtained sizes, and if the Y coordinate values of the start arrow and the end arrow are equal, the size is a horizontal size; if the X coordinate values of the initial arrow and the end arrow are equal, the size is a vertical size; and if the Y coordinate value and the X coordinate value of the starting arrow and the end arrow are not equal, the coordinates are divided into other coordinates.
In step 6), the step of layering and adjusting the horizontal size and the vertical size comprises the following steps:
6-1) dividing the horizontal size and the vertical size into four regions based on the point coordinates in the view and the diagonal point coordinates of the envelope box,
6-2) determining the position of the minimum size according to the size layout rule of the minimum size at the first layer (innermost layer),
6-3) arranging the sizes from small to large by using an array bubbling method,
6-4) judging size interference in the array, determining the position of the first element (the minimum size) in the array, judging whether the size of the next element interferes with the size of the previous element or not until all elements in the array are judged, if not, setting the size position of the current element to be the same as the size position of the previous element, and if not, setting the size position of the current element to be delta added to the size position of the previous element, wherein:
the adjustment function for the horizontal dimension position coordinates is: setPosition2 (position (0), (Y + Delta)/1000, position (2));
the adjustment function for the vertical dimension position coordinates is: setPosition2 ((X + Delta)/1000, position (1), position (2));
Δ＝K*H
x is the abscissa of the size position of a previous element in the array; y is the ordinate of the last element size position; k is the default view proportion in the drawing; h is the height of the font in the annotation text.
In step 7), the interference judgment of all size labels is carried out by establishing a planar rectangular coordinate system with the midpoint coordinate as an origin according to the view midpoint coordinate acquired in step 3), connecting the start arrow coordinate and the end arrow coordinate according to the size label acquired in step 4), obtaining line segments representing each size in the coordinate system, and judging whether intersection points exist among the line segments in the planar coordinate system, wherein if the intersection points exist, the size labels have interference, otherwise, the size labels do not have interference.
In step 8), the self-adaptive adjustment of other interference sizes is specifically: after judging that the interference exists, carrying out micro-adjustment on other sizes with the interference, and after finishing the adjustment, circularly judging and adjusting again to obtain the final productWhen the current view is corrected and adjusted, acquiring the next view for correction and adjustment until all the views are adjusted, wherein the micro-adjustment function of the size position coordinate is as follows: setPosition2 (position (1) + Delta/2000, position (1) + { - (x) 2 -x 1 )/(y 1 -y 2 )×[Δ/2-(x 1 +x 2 )/2]+(y 1 +y 2 )/2}/1000，position(2))。
Has the advantages that: the size labeling error correction self-adaptive adjusting method for the two-dimensional engineering drawing provided by the invention effectively solves a series of problems of the drawing and the problem of size labeling position interference in the two-dimensional engineering drawing which is generated quickly after variant design, can effectively help the two-dimensional engineering drawing to generate quickly and automatically, replaces designers to adjust the size labeling position manually, shortens the product design period, improves the product design efficiency, and is beneficial to the standardization of the drawing. The method has universality, and all Solid works two-dimensional engineering part drawings can automatically adjust the dimension marks in the drawings by the method.
Drawings
FIG. 1 is a view envelope box and view midpoint illustration;
FIG. 2 is a rectangular plane coordinate system established with the view midpoint as the origin coordinate;
FIG. 3 is an explanatory drawing of the respective portions labeled in size;
FIG. 4 is a flow chart of the present invention;
FIG. 5 is a diagram illustrating dimensional layout rules;
FIG. 6 is a view illustrating horizontal size division;
FIG. 7 is a sectional explanatory view of the vertical dimension;
FIG. 8 is a problem-oriented illustration;
FIG. 9 is an example of a generic view;
fig. 10 is a graph of interference determination after processing of the dimension lines in fig. 9.
Detailed Description
The invention is further illustrated but not limited by the following figures and examples.
Example (b):
as shown in fig. 4, a size label adaptive adjustment method in a Solid works two-dimensional engineering drawing includes the following steps:
1) Obtaining a view object in Solid works, judging whether the view is empty, if so, ending the process, and obtaining again; if not, acquiring the current view object;
2) Judging whether the size quantity in the current view size object is empty, if so, acquiring the next view object, and executing the step 1) again; if not, continuing to execute the step 3);
3) The method for acquiring the midpoint coordinate of the current view and the diagonal point coordinate of the view envelope frame is shown in fig. 1, and specifically comprises the following steps:
3-1) acquiring a Current activation drawing by using a Get Current Sheet function;
3-2) obtaining a First View in the engineering drawing by using a Get First View function;
3-3) defining an array Outline (), and obtaining the diagonal point coordinates of the current view envelope frame by using a Get Outline function;
3-4) defining an array Midpoint (), and obtaining the point coordinates in the current view by using a Position function;
and 3-5) comparing the position coordinates of the dimension line with the midpoint coordinates of the View and the diagonal coordinates of the envelope frame, determining the relative position of the dimension in the View, and acquiring the Next View by using a Get Next View function until all the dimensions of the current View are adjusted.
4) The obtaining of the annotation coordinate, the start arrow coordinate and the end arrow coordinate of the view annotation dimension annotation text is shown in fig. 3, and specifically includes the following steps:
4-1) defining a variable Display Dimension, and obtaining the size in the current view by using a Get Display Dimensions () function;
4-2) defining a variable Annotation, and obtaining an Annotation text with the current size by using a Get Annotation function;
4-3) defining a variable Position, and obtaining the annotation coordinate of the current annotation text by using a Get Position () function;
4-4) define the array Arrow Head () and acquire the Arrow coordinates using the Get Arrow Head AtIndex2 () function, where Get Arrow Head AtIndex2 (0) is the acquisition start Arrow coordinates and Get Arrow Head AtIndex2 (1) is the acquisition end Arrow coordinates.
5) Classifying the sizes into horizontal sizes, vertical sizes and other sizes according to arrow coordinates marked by the sizes, specifically according to a start arrow coordinate and an end arrow coordinate in the obtained sizes, and if Y coordinate values of the start arrow and the end arrow are equal, the sizes are horizontal sizes; if the X coordinate values of the initial arrow and the end arrow are equal, the size is a vertical size; and if the Y coordinate value and the X coordinate value of the starting arrow and the end arrow are not equal, the coordinates are divided into other coordinates.
6) Layering and adjusting the horizontal size and the vertical size according to the midpoint coordinate and the diagonal coordinate obtained in the step 3), and specifically comprises the following steps:
6-1) dividing the horizontal size and the vertical size into four regions based on the point coordinates in the view and the diagonal point coordinates of the envelope box,
6-2) as shown in FIG. 5, the position of the minimum size is determined according to the size layout rule of the minimum size at the first layer (innermost layer),
6-3) arranging the sizes from small to large by using an array bubbling method,
6-4) judging size interference in the array, determining the position of the first element (the minimum size) in the array, judging whether the size of the next element interferes with the size of the previous element or not until all elements in the array are judged, if not, setting the size position of the current element to be the same as the size position of the previous element, and if not, setting the size position of the current element to be delta added to the size position of the previous element, wherein:
the adjustment function for the horizontal dimension position coordinates is: setPosition2 (position (0), (Y + Delta)/1000,position (2));
the adjustment function for the vertical dimension position coordinates is: setPositation 2 ((X + Delta)/1000, position (1), position (2));
Δ＝K*H
x is the abscissa of the size position of a previous element in the array; y is the ordinate of the last element size position; k is the default view proportion in the drawing; h is the height of the font in the annotation text.
Delamination in horizontal dimension: as shown in fig. 6, the size is divided into four areas I, ii, iii and iv from top to bottom, the Y coordinate of the size line is larger than Ymax and is the area I, the sizes in the area are stored in an array and bubble sorting is performed from small to large, and the position of the Y coordinate of the minimum size is set to Ymax + delta; the Y coordinate of the dimension line is larger than Ymid and smaller than Ymax, and is an area II, the dimensions in the area are stored in an array and bubble sorting is carried out from small to large, and the position of the Y coordinate of the minimum dimension is set to be Ymax-delta; the Y coordinate of the dimension line is larger than Ymin and smaller than Ymid, the Y coordinate is a III area, the dimensions in the area are stored in an array and bubble sorting is carried out from small to large, and the position of the Y coordinate of the minimum dimension is set to be Ymin + delta; and the Y coordinate of the dimension line is smaller than Ymin and is an IV area, the dimensions in the area are stored in an array and bubble sorting is carried out from small to large, and the position of the Y coordinate of the minimum dimension is set to be Ymin-delta.
Layering of vertical dimensions: as shown in fig. 7, the size is divided into four areas I, ii, iii and iv from left to right, the X coordinate of the size line is smaller than Xmin and is the area I, the sizes in the area are stored in an array and bubble-sorted from small to large, and the position of the X coordinate of the minimum size is set to be Xmin- Δ; the X coordinate of the dimension line is larger than Xmin and smaller than Xmid, the area II is formed, the dimensions in the area are stored in an array and bubble sorting is carried out from small to large, and the position of the X coordinate with the minimum dimension is set to be Xmin + delta; the X coordinate of the dimension line is larger than Xmid and smaller than Xmax, and is a III area, the dimensions in the area are stored in an array and bubble sorting is carried out from small to large, and the position of the X coordinate of the minimum dimension is set to be Xmax-delta; and the X coordinate of the dimension line is larger than Xmax and is an IV area, the dimensions in the area are stored in an array and bubble sorting is carried out from small to large, and the position of the X coordinate of the minimum dimension is set to be Xmax-delta.
Wherein: Δ = K × H; k-default view scale in the drawing; h- -height of font in annotation text.
Adjusting the residual size in the array: judging interference between the residual size and the previous size according to the sequence in the array, judging a Y coordinate by the horizontal size, if the residual size is not interfered, judging that the Y coordinate positions are the same, wherein the residual size comprises a plurality of interference areas, an odd-numbered area Y coordinate position + delta and an even-numbered area Y coordinate position + delta; and judging the X coordinate by the vertical dimension, wherein if the X coordinate is not interfered, the X coordinate is the same in position, and if the X coordinate is not interfered, the X coordinate is-delta in an odd number area, and the X coordinate is + delta in an even number area.
7) Performing interference judgment on all size labels, specifically, as shown in fig. 9 and 10, establishing a planar rectangular coordinate system by using a midpoint coordinate as an origin according to the view midpoint coordinate obtained in the step 3), marking a start arrow coordinate and an end arrow coordinate (a circle mark position) according to the size obtained in the step 4), as shown in fig. 2, connecting the start arrow coordinate and the end arrow coordinate in a planar rectangular coordinate system (a lower left corner origin) default in the Solid works two-dimensional engineering drawing to obtain line segments representing all sizes in a coordinate system, and judging whether intersection points exist among the line segments in the planar coordinate system, wherein if the intersection points exist, the size labels exist interference, otherwise, the size labels do not exist interference.
8) The other sizes of the interference are adaptively adjusted, specifically: after judging that the interference exists, performing micro adjustment on other sizes with the interference, after the adjustment is finished, circularly judging and adjusting again until no interference exists, and acquiring the next view for error correction adjustment until all the views are adjusted after the current view is adjusted;
fine adjustment of other dimensions of the interference: extracting coordinates of a start arrow and an end arrow of the interference size obtained before, and setting the coordinates of the start arrow as A (x) 1 ，y 1 ) The coordinate of the end point arrow is B (x) 2 ，y 2 ) Connecting the obtained A, B two points to obtain a line segment representing the dimension line, and obtaining a perpendicular bisector L of the line segment A, B as follows: y = - (x) 2 -x 1 )/(y 1 -y 2 )×[x-(x 1 +x 2 )/2]+(y 1 +y 2 )/2。
And if the increment of the X coordinate is adjusted to be delta/2 each time, the increment of the Y coordinate is substituted into a vertical bisector: - (x) 2 -x 1 )/(y 1 -y 2 )×[Δ/2-(x 1 +x 2 )/2]+(y 1 +y 2 )/2。
The fine tuning function of the dimensional position coordinates is: setPosition2 (position (1) + Delta/2000, position (1) + { - (x) 2 -x 1 )/(y 1 -y 2 )×[Δ/2-(x 1 +x 2 )/2]+(y 1 +y 2 )/2}/1000，position(2))。
Claims (1)
1. A size labeling error correction self-adaptive adjustment method for a Solid works two-dimensional engineering drawing is characterized by comprising the following steps:
1) Obtaining a view object in Solid works, judging whether the view is empty, if so, ending the process, and obtaining again; if not, acquiring the current view object;
2) Judging whether the size quantity in the current view size object is empty, if so, acquiring the next view object, and executing the step 1) again; if not, continuing to execute the step 3);
3) Acquiring a midpoint coordinate of a current view and a diagonal point coordinate of a view envelope frame;
4) Acquiring annotation coordinates, initial arrow coordinates and end arrow coordinates of the view annotation dimension annotation text;
5) Classifying the sizes according to arrow coordinates marked by the sizes, and dividing the sizes into horizontal sizes, vertical sizes and other sizes;
6) Layering and adjusting the horizontal size and the vertical size according to the midpoint coordinate and the diagonal coordinate obtained in the step 3);
7) Performing interference judgment on all size labels;
8) Adjusting other interference sizes in a self-adaptive manner;
the method is characterized in that in the step 3), the obtaining of the midpoint coordinate of the current view and the diagonal point coordinate of the view envelope frame comprises the following steps:
3-1) acquiring a Current activation drawing by using a Get Current Sheet function;
3-2) obtaining a First View in the engineering drawing by using a Get First View function;
3-3) defining an array Outline (), and obtaining the diagonal coordinates of the current view envelope frame by using a Get Outline function;
3-4) defining an array Midpoint (), and obtaining the point coordinates in the current view by using a Position function;
3-5) obtaining the Next View by using a Get Next View function until all sizes of the current View are adjusted;
the method is characterized in that in the step 4), the obtaining of the annotation coordinate, the start arrow and the end arrow coordinate of the view dimension marking text comprises the following steps:
4-1) defining a variable Display Dimension, and obtaining the Dimension in the current view by using a Get Display Dimensions () function;
4-2) defining a variable Annotation, and obtaining an Annotation text with the current size by using a Get Annotation function;
4-3) defining a variable Position, and obtaining the annotation coordinate of the current annotation text by using a Get Position () function;
4-4) defining an array Arrow Head () and acquiring Arrow coordinates by using a Get Arrow Head AtIndex2 () function, wherein the Get Arrow Head AtIndex2 (0) is the coordinates of an acquisition start Arrow, and the Get Arrow Head AtIndex2 (1) is the coordinates of an acquisition end Arrow;
in the step 5), the size labels are classified according to the coordinates of a start arrow and the coordinates of an end arrow in the obtained sizes, and if the Y coordinate values of the start arrow and the end arrow are equal, the size is a horizontal size; if the X coordinate values of the initial arrow and the end arrow are equal, the size is a vertical size; if the Y coordinate value and the X coordinate value of the starting arrow and the end arrow are not equal, the coordinates are divided into other coordinates;
in step 6), the step of layering and adjusting the horizontal size and the vertical size comprises the following steps:
6-1) dividing the horizontal size and the vertical size into four regions based on the point coordinates in the view and the diagonal point coordinates of the envelope box,
6-2) determining the position of the minimum size according to the size layout rule of the minimum size at the first layer, the first time being the innermost layer,
6-3) arranging the sizes from small to large by using an array bubbling method,
6-4) judging size interference in the array, namely judging the first element in the array, wherein the first element is the determined minimum size position, judging whether the size of the next element is interfered with the size of the previous element or not until all elements in the array are judged, if not, setting the size position of the current element to be the same as the size position of the previous element, and if not, setting the size position of the current element to be delta added to the size position of the previous element, wherein:
the adjustment function for the horizontal dimension position coordinates is: setPosition2 (position (0), (Y + Delta)/1000,position (2));
the adjustment function for the vertical dimension position coordinates is: setPositation 2 ((X + Delta)/1000, position (1), position (2));
Δ＝K*H
x is the abscissa of the size position of a previous element in the array; y is the ordinate of the last element size position; k is the default view proportion in the drawing; h is the height of the font in the annotation text;
the method is characterized in that in the step 7), interference judgment is carried out on all size labels, a plane rectangular coordinate system is established by taking the midpoint coordinate as an origin according to the view midpoint coordinate acquired in the step 3), a starting arrow coordinate and an end arrow coordinate are labeled according to the size acquired in the step 4), the starting arrow coordinate and the end arrow coordinate are connected to obtain line segments representing all sizes in a coordinate system, whether intersection points exist among line segments in the plane coordinate system is judged, if the intersection points exist, interference exists among the size labels, otherwise, interference does not exist among the size labels;
in step 8), the other interference size self-adaptive adjustment specifically includes: after the interference is judged to exist, performing micro adjustment on other sizes with the interference, after the adjustment is finished, circularly judging and adjusting again until no interference exists, after the current view error correction adjustment is finished, acquiring the next view for error correction adjustment until all the views are adjusted, wherein the micro adjustment function of the size position coordinate is as follows:
SetPosition2(position(1)+Δ/2000，position(1)+{-(x 2 -x 1 )/(y 1 -y 2 )×[Δ/2-(x 1 +x 2 )/2]+(y 1 +y 2 )/2}/1000，position(2))。
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| CN110428479A (en) | 2019-11-08 |
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