CN110503727A - A kind of quick joining method of any multi-section-line batch of CAD - Google Patents
A kind of quick joining method of any multi-section-line batch of CAD Download PDFInfo
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- CN110503727A CN110503727A CN201910734689.3A CN201910734689A CN110503727A CN 110503727 A CN110503727 A CN 110503727A CN 201910734689 A CN201910734689 A CN 201910734689A CN 110503727 A CN110503727 A CN 110503727A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T19/00—Manipulating 3D models or images for computer graphics
- G06T19/20—Editing of 3D images, e.g. changing shapes or colours, aligning objects or positioning parts
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/30—Computing systems specially adapted for manufacturing
Abstract
The present invention provides a kind of any multi-section-line batch of CAD quick joining method, step 1, the reading of multi-section-line to be spliced, select and read in batches each straight line, multi-section-line, on two-dimentional multi-section-line and three dimensional poly-lines each vertex XY coordinate and Z elevation；Step 2, the inspection of the multi-section-line of reading, delete weight and label；Step 3, two endpoints of head and the tail of any multi-section-line to be spliced are looped through, the head and the tail endpoint for the splicing multi-section-line that successively the detection range endpoint Z attribute is identical, distance is nearest, and mark；Step 4, it according to splicing multi-section-line and apart from nearest multi-section-line and its head and the tail endpoint to be spliced, judges automatically using sequence or backward connecting method, and spliced and marked；Step 5, step 3,4 are circuited sequentially, splicing is completed, and carries out the drafting of splicing multi-section-line based on former multistage line attribute.The technology of the present invention principle is simple, easily operated, has great superiority compared with art methods, is worth promoting and applying in a large amount of CAD engineering drawing from now on.
Description
Technical field
The present invention relates to be related to CAD engineering drawing field, and in particular to a kind of any quick splicing side of multi-section-line batch CAD
Method.
Background technique
CAD engineering drawing field often relates to the splicing of a large amount of multi-section-lines.Especially fairway depth figure or river
In the processing of road topographic map data.There is straight line, multi-section-line, the two-dimentional multiple types such as multi-section-line and three dimensional poly-lines in CAD
Object.Wherein, straight line is the line of two endpoints of first and last, only two endpoints of first and last in CAD；Multi-section-line is two or more
Line between endpoint is an entirety, and is all disconnected from each other using the line segment that straight line order is drawn.In addition, there are also two
Tie up multi-section-line, three dimensional poly-lines etc..The difference of two-dimentional multi-section-line and multi-section-line is that the data of two-dimentional multi-section-line are more complex, each
There are figure layer, space, a handle attribute in vertex, and all vertex figure layer having the same, space and handle attribute of multi-section-line etc..
As multi-section-line, the Z coordinate of two-dimentional multi-section-line each point is identical；And three dimensional poly-lines can be with rendering space curve, the Z of each point is sat
Mark can be different.
Because CAD multi-section-line has multiple types, and data structure is all different, although CAD provides multistage splicing
Order, but there are many problems when a variety of multistage splicings of progress: and 1. different types of multistage splicing time step is suddenly very complicated
Complexity is very easy to splicing failure；2., even more can not direct splicing when comprising not three dimensional poly-lines in one plane；③
It cannot achieve the Auto-matching splicing of a large amount of different elevation multi-section-lines.
In fairway depth figure or river topography figure, due to software for drawing, the various aspects such as mode and post-processing are drawn
The reason of, isobath, contour or flowage line for drawing out etc. be often it is discrete, to the later period extract and editor bring compared with
It is big difficult.As shown in fig. 1, many isopleth are interrupted by elevational point, there are also some isopleth seemingly one it is continuous
Line has actually been broken into multiple multi-section-lines, so that it selects, extracts and edit extremely difficult.Conventional method is one by one
Object is selected, and intricate operation and heavy workload, very time-consuming and laborious, efficiency is lower, and the later period edits still need again
Largely repeat cumbersome work.When the multi-section-line of especially a large amount of different Z attributes needs automatic Mosaic, traditionally there are no quickly have
The method of effect, there is a large amount of discrete different Z attribute value (height value) isopleth as shown in figure 1, how to belong to closely located Z
Property the identical multi-section-line automatic Mosaic of value, conventional method can only be selected and be spliced one by one, be taken time and effort very much, efficiency pole
It is low.
Summary of the invention
The present invention is some present in the multistage splicing of existing CAD engineering drawing field to solve the problems, such as, proposes one kind
The quick joining method of any multi-section-line batch of CAD, technical principle is simple, easily operated, has compared with art methods great
Superiority is worth promoting and applying in a large amount of CAD engineering drawing from now on.
Technical solution of the present invention:
A kind of quick joining method of any multi-section-line batch of CAD, comprising steps of
Step 1, the reading of multi-section-line to be spliced selects in batches and reads each straight line, multi-section-line, two-dimentional multi-section-line and three-dimensional
The XY coordinate and Z elevation on each vertex on multi-section-line；
Step 2, the inspection of the multi-section-line of reading, delete weight and label；
Step 3, two endpoints of head and the tail of any multi-section-line to be spliced are looped through, successively detection range endpoint Z belongs to
Property identical, splicing multi-section-line that distance is nearest head and the tail endpoint, and mark；
Step 4, according to splicing multi-section-line and apart from nearest multi-section-line and its head and the tail endpoint to be spliced, use is judged automatically
Sequence or backward connecting method, and spliced and marked；
Step 5, step 3,4 are circuited sequentially, completes splicing, and drawing for splicing multi-section-line is carried out based on former multistage line attribute
System.
The specific method step of the step 2 is,
(1) it is directed to every multi-section-line, checks each apex coordinate of its endpoint containing head and the tail with the presence or absence of repetition, by duplicate top
Point or extreme coordinates are deleted；
(2) all multi-section-lines are directed to, the multi-section-line being completely coincident is checked for, completely duplicate multi-section-line is carried out
It deletes；
(3) it is directed to every multi-section-line, checks whether the multi-section-line is closed, is labeled as closure multi-section-line to be not involved in splicing
Multi-section-line set, by non-closed multi-section-line labeled as the multi-section-line set for participating in splicing.
The specific method step of the step 3 is,
1) for any multi-section-line to be spliced in the multi-section-line set for participating in splicing, using the method for searching loop, from ginseng
With nearest splicing multistage line endpoints are searched in the multi-section-line set of splicing；
2) it is directed to any multi-section-line to be spliced, when searching for nearest splicing multistage line endpoints, from endpoint Z attribute value, endpoint
Two aspects of distance compare, and select within endpoint Z attribute the same terms lower threshold value, apart from nearest splicing multistage line endpoints；
3) the splicing multistage line endpoints that distance is nearest in 2), main mark multi-section-line to be spliced and splicing multi-section-line are directed to
Number, distance nearest two endpoint numbers, minimum distances.
The specific method step of the step 4 is,
A. the head and the tail endpoint location according to multi-section-line to be spliced and apart from nearest splicing multi-section-line, judges using positive sequence also
It is each vertex that inverted order loops through splicing multi-section-line, completes splicing；
B. after the completion of splicing, splicing is completed into the new multi-section-line generated labeled as the multi-section-line set for participating in splicing, and
The multi-section-line for having participated in splicing is labeled as to be not involved in the multi-section-line set of splicing, is no longer participate in subsequent splicing, to improve search
Splice efficiency.
The specific method step of the step 5 is to create figure layer, for multi-section-line after preservation splicing, and according to splicing
Spliced multi-section-line is carried out Automatic Drawing by color attribute, the line style attribute of preceding multi-section-line.
The step 1~step 5 is programmed realization using VBA module in CAD software.
Compared with prior art, the beneficial effects of the present invention are: program also have the advantages that automation, it is intelligentized, for
In high volume different types of line segment, program can judge automatically adjacent segments and adjacent endpoint, with not collinear apart from Minimal Realization
Splicing between section；Solve conventional method one by one object carry out selection editor, intricate operation, time-consuming and laborious, efficiency compared with
Low problem is especially that by the automatic Mosaic of the different Z attribute values of high-volume, has even more greatly saved manpower and material resources,
It improves work efficiency；Using two direct-connected threshold value, search radius parameters, for end-point distances be less than direct-connected threshold value can be straight
It connects and is attached, without continuing searching, the multi-section-line that otherwise only selection end-point distances are less than search radius is attached, Ke Yi great
Efficiency when big raising high-volume multi-section-line automatic Mosaic；Connecting method is very flexible, and it is more that straight line, multi-section-line, 2D may be implemented
Splicing between any different type multi-section-line of section line and 3D multi-section-line etc. can also realize that Z attribute value is same or different etc.
The splicing of a variety of multi-section-lines；Using visualization interface, inputted compared with traditional commands row, technical staff is highly susceptible to understanding, grasp and
Operation.The technology of the present invention principle is simple, easily operated, has great superiority compared with art methods, is worth big from now on
It is promoted and applied in the CAD engineering drawing of amount.
Detailed description of the invention
Fig. 1 is CAD multi-section-line schematic diagram to be spliced.
Fig. 2 is flow diagram of the present invention.
Fig. 3 is that the present invention is based on the interface schematic diagrams that VBA is developed.
Fig. 4 is that the AC point of multi-section-line AB, CD splice schematic illustration.
Fig. 5 is that the AD point of multi-section-line AB, CD splice schematic illustration.
Fig. 6 is that the BC point of multi-section-line AB, CD splice schematic illustration.
Fig. 7 is that the BD point of multi-section-line AB, CD splice schematic illustration.
Fig. 8 is spliced CAD multi-section-line schematic diagram.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The present invention realizes the method that any multi-section-line batch of CAD quickly splices using VBA programming, below in conjunction with attached drawing
The present invention will be further described with specific embodiment.
Step 1, the reading of multi-section-line to be spliced selects in batches and reads each straight line, multi-section-line, two-dimentional multi-section-line and three-dimensional
The XY coordinate and Z elevation of each vertex (including head and the tail endpoint) on multi-section-line.
This step specific implementation method are as follows: the median surface Fig. 3 program is run in CAD, selects multi-section-line type to be spliced, it can
It, can also be a variety of with final election to select one of which；Then relevant parameter is set, " multistage splicing " button is clicked, according to prompt
Frame selects multi-section-line to be spliced, program can automatic screening read the multi-section-line type of check box selection.
Step 2, it carries out the inspection of multi-section-line, delete weight and label, which is that program is being automatically performed from the background, without artificial
Interaction.Concrete principle and step are as follows:
The each vertex (two endpoints of head and the tail comprising every multi-section-line) for looping through every multi-section-line first, checks it
Each apex coordinate deletes duplicate apex coordinate with the presence or absence of repetition；
Secondly it is directed to every multi-section-line, loops through other multi-section-lines, checks for and whether is completely coincident therewith
Multi-section-line deletes duplicate multi-section-line；
It is finally directed to every multi-section-line, checks whether the multi-section-line is closed, is i.e. the coordinate of two endpoints of multi-section-line head and the tail is
It is no the same, the multi-section-line is not involved in the multi-section-line set of splicing labeled as closure multi-section-line if the same；Otherwise it is closed non-
Multi-section-line is closed labeled as the multi-section-line set for participating in splicing.
Step 3 and step 4, for two steps of one cycle traversal, which is that program is being automatically performed from the background, is not necessarily to
Man-machine interactively.Concrete principle and step are as follows:
First against the head and the tail of any multi-section-line (multi-section-line is denoted as AB) to be spliced in the multi-section-line set for participating in splicing
Two endpoints, head and the tail endpoint are denoted as A point, B point respectively, using the method for searching loop, calculate in the multi-section-line set for participating in splicing
Splice the distance of two endpoints of head and the tail of multi-section-line (multi-section-line is denoted as CD), head and the tail endpoint is denoted as C point, D point respectively, then exists
Four distance values dAC, dAD, dBC, dBD, wherein dAC be A point to the distance of C point, the rest may be inferred by analogy.For multi-section-line to be spliced
Other every multi-section-line traverses one time and is denoted as one cycle traversal in the multi-section-line set that AB and participation are spliced.
During this is looped through, if existed in dAC, dAD, dBC, dBD less than direct-connected threshold value, stops this and follow
Ring traversal, corresponding two endpoints are directly connected to and are marked.If there is no be less than this end-point distances value looped through
Direct-connected threshold value, but exist and be less than search radius, then it chooses the smallest two multi-section-lines of end-point distances and endpoint is marked
And connection.Otherwise, if there is no search radius is less than, then without marking and connecting.
During this is looped through, such as when multi-section-line AB, CD are spliced, there is different situations: 1. if
When AC point splices, then need first by each vertical array of CD multi-section-line (comprising head and the tail endpoint) backward, then AB multi-section-line is respectively pushed up
Points spelling is connected to below, generates new multi-section-line DB, and DB is added in the multi-section-line set for participating in splicing and is marked,
As shown in Figure 4；2. if directly each vertical array of AB multi-section-line can be spliced to each number of vertex of CD multi-section-line when AD point splices
After group, new multi-section-line CB is generated, CB is added in the multi-section-line set for participating in splicing and is marked, as shown in Figure 5；③
If BC point splices, new multi-section-line AD can be generated, by AD directly by AB and each vertical array sequential concatenation of CD multi-section-line
It is added in the multi-section-line set for participating in splicing and is marked, as shown in Figure 6；4. if BD point splice when, CD multi-section-line
Each vertical array backward, then splice to each vertical array of AB multi-section-line, new multi-section-line AC is generated, AC is added to participation and is spelled
It in the multi-section-line set connect and is marked, as shown in Figure 7.After the completion of above-mentioned 1.~4. four kind of situation, needing simultaneously will
AB, CD multi-section-line spliced is carried out to remove and be marked from the multi-section-line set for participating in splicing.If circulation time every time
There is no end-point distances to be less than search radius in going through, and when without splicing, being retained in for former AB, CD multi-section-line participates in splicing
In multi-section-line set.
In addition, such as scheming the present invention also provides whether the different connecting methods such as each vertex Z attribute value difference of multi-section-line is different are considered
Shown in " different Z values are individually spliced " and " not considering that Z value difference is different " radio box, embody in step 3 search endpoint most
When short distance, the former closely considers the identical endpoint of search Z value when searching for the minimum distance of endpoint, that is, has identical Z value attribute
Endpoint could splice；The latter does not consider the difference of endpoint Z value when searching for the minimum distance of endpoint, and all endpoints each may participate in
Distance calculates and splicing.
Specific implementation method of the present invention is extremely simple, in addition to step 1 needs human-computer interaction to be selected in CAD,
Remaining step is in the later automatic running of program.The median surface Fig. 3 program is run in CAD as previously described, selects multi-section-line to be spliced
Then relevant parameter is arranged in type, click " multistage splicing " button, multi-section-line to be spliced is selected according to prompting frame, program is
Can automatic screening read check box selection multi-section-line type.Spliced multi-section-line effect is as shown in Figure 8 as shown in figure 1.In figure
The case where also showing click one multi-section-line of selection, it can be seen that multiple multi-section-lines have been spliced into a multi-section-line after splicing,
There are multiple objects to become an object, the selection and processing in very convenient later period.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (6)
1. a kind of quick joining method of any multi-section-line batch of CAD, which is characterized in that comprising steps of
Step 1, the reading of multi-section-line to be spliced selects in batches and reads each straight line, multi-section-line, two-dimentional multi-section-line and three-dimensional multistage
The XY coordinate and Z elevation on each vertex on line；
Step 2, the inspection of the multi-section-line of reading, delete weight and label；
Step 3, two endpoints of head and the tail of any multi-section-line to be spliced are looped through, successively the detection range endpoint Z attribute phase
The head and the tail endpoint of the splicing multi-section-line same, distance is nearest, and mark；
Step 4, it according to splicing multi-section-line and apart from nearest multi-section-line and its head and the tail endpoint to be spliced, judges automatically using sequence
Or backward connecting method, and spliced and marked；
Step 5, step 3,4 are circuited sequentially, splicing is completed, and carries out the drafting of splicing multi-section-line based on former multistage line attribute.
2. a kind of quick joining method of any multi-section-line batch of CAD according to claim 1, which is characterized in that described
The specific method step of step 2 is,
(1) be directed to every multi-section-line, check each apex coordinate of its endpoint containing head and the tail with the presence or absence of repeating, by duplicate vertex or
Person's extreme coordinates are deleted；
(2) all multi-section-lines are directed to, the multi-section-line being completely coincident is checked for, complete duplicate multi-section-line is deleted
It removes；
(3) it is directed to every multi-section-line, checks whether the multi-section-line is closed, multi-section-line will be closed and be labeled as being not involved in the multistage of splicing
Line set, by non-closed multi-section-line labeled as the multi-section-line set for participating in splicing.
3. a kind of quick joining method of any multi-section-line batch of CAD according to claim 1, which is characterized in that described
The specific method step of step 3 is,
1) it is spelled using the method for searching loop from participation for any multi-section-line to be spliced in the multi-section-line set for participating in splicing
Nearest splicing multistage line endpoints are searched in the multi-section-line set connect；
2) it is directed to any multi-section-line to be spliced, when searching for nearest splicing multistage line endpoints, from endpoint Z attribute value, end-point distances
Two aspects compare, and select within endpoint Z attribute the same terms lower threshold value, apart from nearest splicing multistage line endpoints；
3) the splicing multistage line endpoints that distance is nearest in 2), the volume of main mark multi-section-line to be spliced and splicing multi-section-line are directed to
Number, nearest two endpoint numbers, the minimum distances of distance.
4. a kind of quick joining method of any multi-section-line batch of CAD according to claim 1, which is characterized in that described
The specific method step of step 4 is,
A. the head and the tail endpoint location according to multi-section-line to be spliced and apart from nearest splicing multi-section-line, judges still to fall using positive sequence
Sequence loops through each vertex of splicing multi-section-line, completes splicing；
B. after the completion of splicing, splicing is completed into the new multi-section-line generated labeled as the multi-section-line set for participating in splicing, and will
The multi-section-line for participating in splicing is labeled as being not involved in the multi-section-line set of splicing, is no longer participate in subsequent splicing, to improve search splicing
Efficiency.
5. a kind of quick joining method of any multi-section-line batch of CAD according to claim 1, which is characterized in that described
The specific method step of step 5 is to create figure layer, for multi-section-line after preservation splicing, and according to the color of multi-section-line before splicing
Spliced multi-section-line is carried out Automatic Drawing by attribute, line style attribute.
6. -5 quick joining method of any any multi-section-line batch of a kind of CAD according to claim 1, which is characterized in that
The step 1~step 5 is programmed realization using VBA module in CAD software.
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| CN115481475A (en) * | 2022-09-21 | 2022-12-16 | 金鹏装配式建筑有限公司 | Multi-segment line overlapping judgment method for non-area-localization in CAD |
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| CN115481475B (en) * | 2022-09-21 | 2023-09-19 | 金鹏装配式建筑有限公司 | Multi-section line superposition judging method for incapability of surface localization in CAD |
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