CN107194885A - A kind of CAD diagram Intelligent Portable Correcting System and method - Google Patents
A kind of CAD diagram Intelligent Portable Correcting System and method Download PDFInfo
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- 238000012546 transfer Methods 0.000 claims description 18
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- 238000012937 correction Methods 0.000 claims description 14
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T5/00—Image enhancement or restoration
- G06T5/80—Geometric correction
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
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Abstract
The invention provides a kind of CAD diagram Intelligent Portable Correcting System and method, belong to field of computer technology.It is low so as to the problem of influenceing output result that it solves existing CAD diagram quality.This CAD diagram Intelligent Portable Correcting System, including the CAD diagram with coordinate information and dimension information, stitching on the CAD diagram is formed by the arrangement of multiple CAD points, and each CAD points contain CAD point information, and the update the system includes insmoding, identification module, correcting module and reconstructed module.This CAD diagram Intelligent Portable Correcting System, which has, carries out intelligent amendment to former CAD diagram, the advantage for the high quality results for reconstructing satisfactory high-quality CAD diagram to ensure its output.
Description
Technical field
The invention belongs to field of computer technology, it is related to a kind of CAD diagram Intelligent Portable Correcting System and method.
Background technology
CAD (CAD), refers to help designer to be designed work using computer and its graphics device
Make.CAD diagram is by the drawing based on CAD.Machining center can be processed according to the CAD diagram of importing to product.Its product
Machining accuracy is influenceed very big by CAD diagram quality, therefore improves CAD diagram quality, that is, reduces the Actual path chi of CAD diagram and product
Very little error, as necessary problems faced.In existing, in order to improve CAD diagram quality, people take many mode sides
Method, such as disclosed patent name is the reverse method based on CAD model amendment and measurement path planning, patent application publication number
For CN101702087A Chinese patent, designer is according to existing part prototype in the technical scheme, using certain measurement
Equipment is digitized processing to it, and its CAD model is obtained further according to measurement data reverse, produces numerical control code, processes new
The process of part.CAD diagram quality is improved by the method for reverse engineering, so as to reach the effect of high-precision converted products.But this
Individual scheme is operated on the basis of having part prototype, in the case where only CAD diagram does not have actual product, such as cutting root
Cloth is cut according to CAD diagram, its CAD diagram is corresponding mostly in kind without the section of actual cloth, therefore can not use the party
Method improves CAD diagram quality.
The content of the invention
The purpose of the present invention is there is above mentioned problem for existing technology, it is proposed that a kind of CAD diagram to loading is carried out
Intelligence amendment is so as to improve the CAD diagram Intelligent Portable Correcting System of CAD diagram quality.
Another goal of the invention of the present invention is to propose a kind of CAD diagram to loading to carry out intelligence amendment to improve
The CAD diagram intelligent correction method of CAD diagram quality.
The purpose of the present invention can be realized by following technical proposal：A kind of CAD diagram Intelligent Portable Correcting System, including with seat
The stitching marked on the CAD diagram of information and dimension information, the CAD diagram is formed by the arrangement of multiple CAD points, and each CAD points contain CAD
Point information, it is characterised in that：The update the system includes insmoding, identification module, correcting module and reconstructed module, the loading
Module is used to be loaded into above-mentioned CAD diagram and reads CAD point information in order, and CAD point information is transferred into identification mould in order
Block, the identification module is used to identify the curve and straight line stitching in CAD diagram stitching according to above-mentioned CAD point information, and will
The curve-straight line CAD point information transfers of curve and straight line stitching are constituted to correcting module, and will be used to constitute except curve and straight line line
The non-curve-straight line CAD points information transfer of other stitchings outside mark is to reconstructed module, and the correcting module is used for curve-straight line stitching
In curve-straight line CAD points information carry out bad point identification and reject bad point, and interpolation carried out by fit approach add some points to form complete
Curve-straight line stitching, it is described and by curve-straight line CAD point information transfers after the amendment for constituting complete curve-straight line stitching to reconstructed module
Reconstructed module is used to curve-straight line CAD point signal reconstructs after non-Curve CAD point information and amendment forming revised complete CAD diagram
And export.
In a kind of above-mentioned CAD diagram Intelligent Portable Correcting System, it is additionally provided between described correcting module and reconstructed module close
Collect point deletion module, the point off density removing module, which is used to receive curve-straight line CAD points after the amendment that above-mentioned correcting module is transmitted, to be believed
Breath, and curve-straight line CAD points information after amendment is identified and point off density is deleted, the point off density is judged by threshold value, when
Adjacent two CAD points distance is determined as point off density when being less than given threshold, the given threshold is to be preset in intensive point deletion mould
In block.
In a kind of above-mentioned CAD diagram Intelligent Portable Correcting System, described point information is point coordinates.
In a kind of above-mentioned CAD diagram Intelligent Portable Correcting System, described CAD diagram stitching includes curve, straight line, turning and cut
Mouthful, the turning and clip are other above-mentioned stitchings.
In a kind of above-mentioned CAD diagram Intelligent Portable Correcting System, described bad point is to cause curve, straight line little groove occur
CAD points.
In a kind of above-mentioned CAD diagram Intelligent Portable Correcting System, described fit approach is Ferpenticular multinomial curve fit side
One of which in formula, least squares fit approach, Gauss curve fitting mode and Logistic curve matching modes.
On a kind of CAD diagram intelligent correction method, including the CAD diagram with coordinate information and dimension information, the CAD diagram
Stitching is formed by the arrangement of multiple CAD points, and each CAD points contain CAD point information, it is characterised in that with following several steps：
There is provided one to insmod, above-mentioned CAD diagram and reading CAD point information, and CAD points are believed in order for being loaded into
Breath is transferred to identification module in order；
An identification module is provided, for identifying curve and straight line in CAD diagram stitching according to above-mentioned CAD point information
Stitching, and by the curve-straight line CAD point information transfers of composition curve and straight line stitching to correcting module, and will be used to constitute except curve
Non- curve-straight line CAD points information transfer with other stitchings outside straight line stitching is to reconstructed module；
A correcting module is provided, for carrying out bad point identification to the curve-straight line CAD points information in curve-straight line stitching and picking
Add some points to form complete curve-straight line stitching except bad point, and by fit approach progress interpolation, and complete curve-straight line stitching will be constituted
Amendment after curve-straight line CAD point information transfers to reconstructed module；
There is provided a reconstructed module, for by non-curve-straight line CAD point information and amendment after curve-straight line CAD point signal reconstruct shapes
Into revised complete CAD diagram and export.
In a kind of above-mentioned CAD diagram intelligent correction method, described one correcting module step of offer and offer one
Also there is the step of providing a kind of point off density removing module, the point off density removing module is used to receive between reconstructed module step
Curve-straight line CAD point information after the amendment of above-mentioned correcting module transmission, and curve-straight line CAD points information after amendment is identified and deleted
Except point off density, the point off density is judged by threshold value, is determined as when adjacent two CAD points distance is less than given threshold intensive
Point, the given threshold is set to be preset in point off density removing module.
In a kind of above-mentioned CAD diagram intelligent correction method, described point information is point coordinates.
In a kind of above-mentioned CAD diagram intelligent correction method, the CAD diagram line in described one identification module step of offer
Mark includes curve, straight line, turning and clip, and the turning and clip are other above-mentioned stitchings.
In a kind of above-mentioned CAD diagram intelligent correction method, the bad point in described one correcting module step of offer is
Curve, straight line is caused the CAD points of little groove occur.
In a kind of above-mentioned CAD diagram intelligent correction method, the fitting side in described one correcting module step of offer
Formula is Ferpenticular multinomial curve fit mode, least squares fit approach, Gauss curve fitting mode and Logistic curve matchings
One of which in mode.
A kind of cutting, it is characterised in that with above-mentioned CAD diagram Intelligent Portable Correcting System.
Compared with prior art, this CAD diagram Intelligent Portable Correcting System and method have following several advantages：
1st, Intelligent Recognition is carried out to the key factor bad point for influenceing CAD diagram quality and rejected, to exclude to CAD diagram quality shadow
Maximum key factor is rung, so as to improve CAD diagram quality；
2nd, interpolation is carried out after bad point is rejected to CAD diagram by modes such as Ferpenticular multinomial curve fit modes to add some points plan
Close, its original CAD point is distributed sparse CAD diagram, (distribution of CAD points is sparse, and to make to cut out the curve come sufficiently oily, so as to drop
Low cutting quality) reconstruct forms the rational high-quality CAD diagram of CAD dot densities, and these fit approach are added some points by interpolation to be more conformed to
Actual requirement, overall CAD diagram quality is improved with this；
3rd, intelligent deletion is carried out to point off density, with the overstocked influence CAD diagram quality of the new CAD points for avoiding fitting from being formed.
Brief description of the drawings
Fig. 1 is the theory diagram of this CAD diagram Intelligent Portable Correcting System.
Fig. 2 is the flow chart of this CAD diagram intelligent correction method.
Embodiment
The following is specific embodiment of the invention and with reference to accompanying drawing, technical scheme is further described,
But the present invention is not limited to these embodiments.
As shown in figure 1, this CAD diagram Intelligent Portable Correcting System is by the intelligence amendment to CAD diagram, remove to CAD diagram quality shadow
Larger some factors are rung, then more meet actual high-quality by curve matching and the regulation of CAD dot densities so as to regenerate
CAD diagram is measured, can be applied in all equipment higher to the dependence of CAD diagram quality and field.
The present embodiment is applied to cutting and cut, and cutting its cutting quality in actually cutting is influenceed by CAD diagram quality
It is larger, therefore raising CAD diagram quality has greater significance for improving cutting cutting quality.This CAD diagram Intelligent Portable Correcting System bag
Include insmod, identification module, correcting module, point off density removing module, reconstructed module and with coordinate information and dimension information
CAD diagram.
Stitching on CAD diagram is formed by the arrangement of multiple CAD points, and each CAD points contain CAD point information, and CAD diagram carries size
And coordinate, therefore each CAD points are for a unique coordinate value, and the point on the basis of the point in the origin of coordinates, other
CAD position and coordinate value are sequentially formed in order, CAD diagram be loaded into or read when, start to be loaded into order with the datum mark or
Other CAD points are read, the position of each CAD points is converted into the point coordinates value of each CAD points of correspondence.
Insmod for being loaded into CAD diagram and being successively read whole CAD point information in order using datum mark as starting point,
And each CAD points information is transferred to identification module in order, CAD points information is CAD point coordinates.
Identification module is used to identify the curve and straight line stitching in CAD diagram stitching, CAD diagram stitching according to CAD point information
Including curve, straight line, turning and clip, turning and clip will not typically produce bad point, therefore in order to improve recognition efficiency, without
The identification and rejecting of bad point are carried out to it；Bad point is generally present in curve, and straight line is a kind of special circumstances of curve, therefore only
Bad point identification need to be carried out to curve and straight line and rejected, the generation of bad point mapping software relevant with mapping software, different
Different degrees of bad point can be produced.When recognizing curve and straight line stitching, we are remaining to be exactly by recognizing turning and clip
The mode of curve and straight line is carried out.How to judge turning and clip, turning identification parameter has been previously set in identification module
With clip identification parameter, identification parameter correspondence in turning is turning identification angle, and clip identification parameter correspondence is clip identification angle,
Institute between the CAD points and adjacent both sides CAD points is calculated by the coordinate information for the CAD points for analyzing CAD points and adjacent peripheral
Whether the corner of formation meets turning identification angle or clip identification angle, and the CAD is judged if turning identification angle is met
Point belongs to a turning part, judges that the CAD points belong to a clip part if clip identification angle is met, successively to each
CAD points carry out analysis judgement, and each CAD points are judged not having omission according to the method described above, judgement will not be also produced
Error, is conducive to improving the accuracy of identification turning and clip.Then the turning and clip part in CAD diagram are identified, then
Remaining stitching is exactly curve or straight line.Finally reconstruct mould is given by all CAD points information transfers for constituting turning and clip stitching
Block, will constitute all CAD points information transfers of curve and straight line stitching to correcting module.
Correcting module receives all CAD points information for constituting curve and straight line stitching, then carries out bad point knowledge to this part
Not, lower bad point is defined first, and so-called bad point just refers to the CAD points for causing curve, straight line little groove occur.In curve and straight line
Stitching in easily produce bad point, and above-mentioned turning and clip will not produce bad point, therefore above-mentioned turning and clip
Part directly allows it to be output in follow-up reconstructed module and waited after curve and straight line amendment with regard to that need not carry out bad point identification
High-quality CAD diagram is reconstructed together.These bad points curve, straight line actual path due to it deviate from where, are exactly briefly position
It deviate from, then the quality influence on CAD diagram is very big, therefore is recognized that rejecting is clean, will if identification rejects unclean
Little groove effect can be caused to be exaggerated during the interpolation in later stage is added some points, this will greatly reduce CAD diagram quality, so as to influence
Final cutting quality.Rejecting bad point so how is recognized, changing a judgement has determination module, and decision model is according to surrounding
The distribution of CAD points is set up, and is specifically：Corner at the left and right sides adjacent C AD points of CALCULATION CAD point is exterior angle or interior angle, and
Corner at CALCULATION CAD point is interior angle or exterior angle, and CALCULATION CAD point is respectively less than setting with left and right sides adjacent C AD points distance
During threshold value, then the CALCULATION CAD point is judged as bad point, wherein exterior angle is that its angle of the angle to be formed is pointed on the outside of cut-parts, and interior angle is shape
Into its angle of angle point to cut-parts on the inside of.This method can extremely accurate recognize all bad points, and the rejecting that then will break down is clean,
To exclude the influence to CAD mass, CAD mass is improved.The present embodiment after the Outlier rejeetion on curve to passing through orthogonal polynomial
Curve matching mode is fitted, and the CAD points rejected on each curve after bad point is all fitted into polynomial function, when for intending
When the CAD points of conjunction are more than enough, on the basis of guarantee is ageing, increase fitting number of times, to meet last interpolation need as much as possible
Ask.On each curve is obtained after the polynomial function of CAD points, take the uniform mode of adding some points to carry out interpolation and add some points.The present embodiment
Fit approach is not limited only to above-mentioned Ferpenticular multinomial curve fit mode, can also intend for least squares fit approach, Gauss
One of which in conjunction mode and Logistic curve matching modes.The above-mentioned fit approach for curve, straight line is the one of curve
Special circumstances are planted, fitting can use similar mode.Finally, the CAD points information for constituting curve and straight line being fitted is passed
It is defeated by point off density removing module.
Point off density removing module, the CAD point information for the composition curve to being fitted and straight line is identified and deleted
Point off density, point off density is judged by threshold value, and point off density is determined as when adjacent two CAD points distance is less than given threshold, if
Determine threshold value and set to be preset in point off density removing module.Deletion to point off density, to prevent the too high influence CAD diagram stitching of density
Quality.If it is determined that there is point off density, then to remaining CAD points are transferred into reconstructed module after intensive point deletion.If it is determined that not yet
There is point off density, then CAD points are transferred to reconstructed module without processing.
Reconstructed module sends all CAD point information and point off density removing module that constitute turning and clip stitching of reception
The composition curve and the CAD point information of straight line after point off density processing are reconstructed to form complete, high-quality CAD diagram,
It is then output in cutting control unit, cutting control unit carries out high-quality cut according to the high-quality CAD diagram, it is ensured that cut out
Cut quality.
As shown in Fig. 2 this CAD diagram intelligent correction method, for cutting, including with coordinate information and dimension information
Stitching on CAD diagram, CAD diagram is formed by the arrangement of multiple CAD points, and each CAD points contain CAD point information, with following several steps
Suddenly：
S1, provide one and insmod, above-mentioned CAD diagram and CAD point information is read in order for being loaded into, and by CAD
Point information is transferred to identification module in order；Point information is point coordinates；
S2, one identification module of offer, for identifying curve and straight line line in CAD diagram stitching according to CAD point information
Mark, and the curve-straight line CAD point information transfers of curve and straight line stitching will be constituted to correcting module, and will be used to constituting except curve and
The non-curve-straight line CAD points information transfer of other stitchings outside straight line stitching is to reconstructed module；The CAD diagram stitching of the present embodiment includes
Curve, straight line, turning and clip, turning and clip are other above-mentioned stitchings, and wherein bad point is small to cause curve, straight line to occur
The CAD points of groove；
S3, one correcting module of offer, for carrying out bad point identification simultaneously to the curve-straight line CAD points information in curve-straight line stitching
Bad point is rejected, and interpolation is carried out by fit approach and adds some points to form complete curve-straight line stitching, and complete curve-straight line line will be constituted
Curve-straight line CAD point information transfers give point off density removing module after the amendment of mark；Fit approach is Ferpenticular multinomial curve fit side
One of which in formula, least squares fit approach, Gauss curve fitting mode and Logistic curve matching modes；
S4, a kind of point off density removing module of offer, point off density removing module are used to receive repairing for above-mentioned correcting module transmission
Curve-straight line CAD point information after just, and curve-straight line CAD points information after amendment is identified and point off density is deleted, then will be intensive
Curve-straight line CAD point information transfers are to reconstructed module after amendment after point processing；Point off density is judged by threshold value, when adjacent two
CAD points distance is determined as point off density when being less than given threshold, the given threshold sets to be preset in point off density removing module
Put；
S5, provide a reconstructed module, for will non-curve-straight line CAD point information and point off density processing after amendment after it is right and wrong
Line CAD point signal reconstructs, which form revised complete high-quality CAD diagram and exported, gives cutting control unit.
Cutting quality is greatly reduced to the dependence of CAD diagram quality using CAD intelligent correction method technologies, is solved
CAD diagram is in the case of excessively sparse, overstocked comprising bad point or point distribution, the problem of cutting quality caused is not good.Also keep away simultaneously
Exempt from the waste in terms of manpower and materials caused by CAD diagram quality problems, production capacity is improved to a certain extent, promote the intelligence of machine
Energyization develops.
Specific embodiment described herein is only to spirit explanation for example of the invention.Technology neck belonging to of the invention
The technical staff in domain can be made various modifications or supplement to described specific embodiment or be replaced using similar mode
Generation, but without departing from the spiritual of the present invention or surmount scope defined in appended claims.
Claims (10)
1. the line on a kind of CAD diagram Intelligent Portable Correcting System, including the CAD diagram with coordinate information and dimension information, the CAD diagram
Mark is formed by the arrangement of multiple CAD points, and each CAD points contain CAD point information, it is characterised in that：The update the system includes being loaded into mould
Block, identification module, correcting module and reconstructed module, it is described to insmod for being loaded into above-mentioned CAD diagram and reading CAD in order
Point information, and CAD point information is transferred to identification module in order, the identification module is used for according to above-mentioned CAD point information
Identify the curve and straight line stitching in CAD diagram stitching, and the curve-straight line CAD point information transfers that curve and straight line stitching will be constituted
To correcting module, and by for constitute the non-curve-straight line CAD point information transfers of other stitchings in addition to curve and straight line stitching to
Reconstructed module, the correcting module is used to carry out bad point identification to the curve-straight line CAD points information in curve-straight line stitching and rejected bad
Point, and add some points to form complete curve-straight line stitching by fit approach progress interpolation, and repairing for complete curve-straight line stitching will be constituted
Curve-straight line CAD point information transfers are to reconstructed module after just, and the reconstructed module is used for will be bent after non-Curve CAD point information and amendment
Straight line CAD point signal reconstructs form revised complete CAD diagram and exported.
2. a kind of CAD diagram Intelligent Portable Correcting System according to claim 1, it is characterised in that described correcting module and again
Point off density removing module is additionally provided between structure module, the point off density removing module is used to receive repairing for above-mentioned correcting module transmission
Curve-straight line CAD point information after just, and curve-straight line CAD points information after amendment is identified and point off density is deleted, the point off density
Judged by threshold value, be determined as point off density when adjacent two CAD points distance is less than given threshold, the given threshold is pre-
It is located in point off density removing module.
3. a kind of CAD diagram Intelligent Portable Correcting System according to claim 1 or 2, it is characterised in that described CAD diagram stitching
Including curve, straight line, turning and clip, the turning and clip are other above-mentioned stitchings.
4. a kind of CAD diagram Intelligent Portable Correcting System according to claim 3, it is characterised in that described fit approach is just
Hand in polynomial curve fitting mode, least squares fit approach, Gauss curve fitting mode and Logistic curve matching modes
One of which.
5. a kind of CAD diagram Intelligent Portable Correcting System according to claim 4, it is characterised in that described bad point is to cause song
There are the CAD points of little groove in line, straight line.
6. the line on a kind of CAD diagram intelligent correction method, including the CAD diagram with coordinate information and dimension information, the CAD diagram
Mark is formed by the arrangement of multiple CAD points, and each CAD points contain CAD point information, it is characterised in that with following several steps：
There is provided one to insmod, above-mentioned CAD diagram and reading CAD point information, and CAD point information is pressed in order for being loaded into
Sequential delivery is to identification module；
An identification module is provided, for identifying curve and straight line line in CAD diagram stitching according to above-mentioned CAD point information
Mark, and the curve-straight line CAD point information transfers of curve and straight line stitching will be constituted to correcting module, and will be used to constituting except curve and
The non-curve-straight line CAD points information transfer of other stitchings outside straight line stitching is to reconstructed module；
A correcting module is provided, for carrying out bad point identification to the curve-straight line CAD points information in curve-straight line stitching and rejecting bad
Point, and add some points to form complete curve-straight line stitching by fit approach progress interpolation, and repairing for complete curve-straight line stitching will be constituted
Curve-straight line CAD point information transfers are to reconstructed module after just；
A reconstructed module is provided, for curve-straight line CAD points signal reconstruct formation after non-curve-straight line CAD point information and amendment to be repaiied
Complete CAD diagram after just is simultaneously exported.
7. a kind of CAD diagram intelligent correction method according to claim 6, it is characterised in that described one amendment of offer
Also there is the step of providing a kind of point off density removing module between one reconstructed module step of module step and offer, it is described intensive
Point deletion module is used to receive curve-straight line CAD point information after the amendment that above-mentioned correcting module is transmitted, and to curve-straight line CAD after amendment
Point information is identified and deletes point off density, and the point off density is judged by threshold value, when adjacent two CAD points distance is less than setting
It is determined as point off density during threshold value, the given threshold is set to be preset in point off density removing module.
8. a kind of CAD diagram intelligent correction method according to claim 6 or 7, it is characterised in that described one knowledge of offer
CAD diagram stitching in other module step includes curve, straight line, turning and clip, and the turning and clip are other above-mentioned lines
Mark.
9. a kind of CAD diagram intelligent correction method according to claim 8, it is characterised in that described one amendment of offer
Fit approach in module step is Ferpenticular multinomial curve fit mode, least squares fit approach, Gauss curve fitting mode
With the one of which in Logistic curve matching modes.
10. a kind of cutting, it is characterised in that with the CAD diagram Intelligent Portable Correcting System any one of above-mentioned power 1~5.
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| CN201710301298.3A CN107194885B (en) | 2017-05-02 | 2017-05-02 | Intelligent CAD (computer-aided design) drawing correction system and method |
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| CN109583070A (en) * | 2018-11-23 | 2019-04-05 | 拓卡奔马机电科技有限公司 | A kind of method and system, computer readable storage medium, terminal optimizing trimmed curve quality |
| CN110244920A (en) * | 2019-06-18 | 2019-09-17 | 中铁工程装备集团有限公司 | Cad file bulk print device and method with intelligent clipping function |
| CN110298336A (en) * | 2019-07-11 | 2019-10-01 | 何活恩 | A kind of CAD Intelligent Portable Correcting System and application |
| CN110309623A (en) * | 2019-07-11 | 2019-10-08 | 段亚斌 | A kind of method of environmental monitoring track laying |
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