CN107240137A - A kind of Gerber graphics rasterizations method and system - Google Patents
A kind of Gerber graphics rasterizations method and system Download PDFInfo
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- CN107240137A CN107240137A CN201710388771.6A CN201710388771A CN107240137A CN 107240137 A CN107240137 A CN 107240137A CN 201710388771 A CN201710388771 A CN 201710388771A CN 107240137 A CN107240137 A CN 107240137A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/30—Circuit design
- G06F30/39—Circuit design at the physical level
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/30—Circuit design
- G06F30/39—Circuit design at the physical level
- G06F30/398—Design verification or optimisation, e.g. using design rule check [DRC], layout versus schematics [LVS] or finite element methods [FEM]
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T11/00—2D [Two Dimensional] image generation
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T9/00—Image coding
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Abstract
The invention discloses a kind of method and system of Gerber graphics rasterizations, methods described includes：According to Gerber syntax rules, Gerber files are parsed, Gerber file data information is drawn；The Gerber file data information drawn according to parsing, calculates the parameter information of image, calls the rasterization algorithm of preset pattern；Finally giving needs the image and data message of preview.The present invention can be obtained by two pixels by performing once to calculate, and have aobvious advantage than single-point generating algorithm, and the formation speed of double step can double arithmetic speed faster.Orderly side table filling algorithm is improved, with the orderly side table filling algorithm based on threshold value, shortens the execution time of algorithm, improves the efficiency of Gerber rasterisations.
Description
Technical field
The present invention relates to inkjet technology field, specifically, more particularly to a kind of Gerber graphics rasterizations method
And system.
Background technology
Gerber graphics rasterizations are exactly the form for vector graphics being converted into bitmap, and follow during conversion one
Individual basic principle：Original vector graphics is represented most preferably to approach the pixel set of Ideal graph.In the process of rasterisation
In, the technology used is exactly graphics rasterization technology, and due to constitute figure each pixel have the color of oneself and
Gray level, so rasterisation can not possibly can always have deviation completely with bitmap statement vector graphics true to nature, this and rasterisation
During use graphics rasterization algorithm it is fine or not relevant.For simple, graphics rasterization be exactly by geometric data or
The vector graphics that mathematic(al) representation is represented is converted into the bitmap format that pixel is represented according to rasterization algorithm.
The existing Gerber graphics rasterizations time is long, influences operating efficiency, there is to be hoisted.
The content of the invention
In order to solve problem of the prior art, the embodiments of the invention provide a kind of method of Gerber graphics rasterizations and
System.The technical scheme is as follows：
On the one hand there is provided a kind of method of Gerber graphics rasterizations, including：
According to Gerber syntax rules, Gerber files are parsed, Gerber file data information is drawn；
The Gerber file data information drawn according to parsing, calculates the parameter information of image, calls the light of preset pattern
Gated algorithm；
Finally giving needs the image and data message of preview.
Alternatively, it is described that Gerber files are parsed according to Gerber syntax rules, draw Gerber file datas
The step of information, is specific as follows：
Data message useful in Gerber files is extracted, is stored according to rasterisation call format in internal memory；
Gerber document analysis obtains the information of Gerber files in terms of four：Gerber file functions code analysis,
The parsing of Gerber file AD codes, the parsing of Gerber file AM codes, Gerber file coordinate resolutions.
Alternatively, the rasterization algorithm of the preset pattern includes fundamental figure rasterization algorithm；
The fundamental figure rasterization algorithm is on central point pair using straightway when line light gated is carried out
The property of title improves the speed of the generation of straight line；Two pixels of the generation on straight central point symmetry in computing each time
Point；When the rasterisation justified, to improve generation circular velocity, introduce the two-step in graphics and draw circle algorithm.
Alternatively, the rasterization algorithm of the preset pattern includes region-filling algorithm；The region-filling algorithm is used
Orderly side table filling algorithm based on threshold value, shortens the execution time of algorithm.
Alternatively, the rasterization algorithm of the preset pattern includes：Circle and the rasterizing of circular arc, oval rasterisation, just
Polygonal rasterisation, the rasterisation of self-defined figure, the rasterisation of straight line, the rasterisation of area filling.
On the other hand there is provided a kind of Gerber graphics rasterizations system, including：
GerBer document analysis modules, for according to Gerber syntax rules, parsing, drawing to Gerber files
Gerber file data information；
Graphics rasterization module, for the Gerber file data information drawn according to parsing, calculates the parameter letter of image
Breath, calls the rasterization algorithm of preset pattern；
Graphic preview module, the image and data message of preview are needed for finally giving.
Alternatively, the GerBer document analysis module is specifically for data message useful in Gerber files is carried out
Extract, be stored according to rasterisation call format in internal memory；
The GerBer document analysis module includes：
GerBer file morphology resolution units, extraction and processing for GerBer file data information；
GerBer file syntax resolution units, for the analysis of GerBer body of an instrument；
Gerber file function code analysis units, the various parameters for Gerber files are pre-processed；
AD codes in Gerber file AD code resolution units, record PCB design, for rasterizing；
Gerber file AM code resolution units, extend AD codes, iris shape are redefined.
Alternatively, the graphics rasterization module includes：Fundamental figure rasterization unit, for circle and the grating of circular arc
Change, oval rasterisation, the rasterisation of regular polygon, the rasterisation of straight line；
The fundamental figure rasterization unit, be additionally operable to carry out line light gated when, using straightway be on
The property of central point improves the speed of the generation of straight line；In computing each time, generation is on straight central point symmetry
Two pixels；When the rasterisation justified, to improve generation circular velocity, introduce the two-step in graphics and draw circle calculation
Method.
Alternatively, the graphics rasterization module includes：Area filling rasterization unit；
The area filling rasterization unit is used for the rasterisation of area filling, is filled with the orderly side table based on threshold value
Algorithm, shortens the execution time of algorithm.
Alternatively, the graphics rasterization module includes self-defined figure rasterization unit, the light for self-defined figure
Gated.
The beneficial effect that technical scheme provided in an embodiment of the present invention is brought is：
(1) the different pels of Gerber files are directed to, specific rasterization algorithm is designed, maximum degree to the greatest extent reduces redundancy
Operation；(2) orderly side table filling algorithm is used, and merges the data characteristicses of Gerber file filling informations, it is proposed that is based on
The adaptive filling algorithm of threshold value, while PCB making accuracy requirements are met, greatly shortens Gerber files rasterisation
Time.
The invention provides a kind of method and system of Gerber graphics rasterizations, it can just be obtained by performing once to calculate
To two pixels, there is aobvious advantage than single-point generating algorithm, the formation speed of double step can double arithmetic speed
Faster.Orderly side table filling algorithm is improved, with the orderly side table filling algorithm based on threshold value, shortens the execution of algorithm
Time, improve the efficiency of Gerber rasterisations.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, makes required in being described below to embodiment
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for
For those of ordinary skill in the art, on the premise of not paying creative work, other can also be obtained according to these accompanying drawings
Accompanying drawing.
Fig. 1 is a kind of method flow diagram of Gerber graphics rasterizations of the embodiment of the present invention one；
Fig. 2 is the Gerber document analysis program flow diagrams of the embodiment of the present invention one；
Fig. 3 is a kind of schematic diagram of Gerber graphics rasterizations system of the embodiment of the present invention two.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing to embodiment party of the present invention
Formula is described in further detail.
The invention provides there is provided a kind of method of Gerber graphics rasterizations, referring to Fig. 1, including：
S100：According to Gerber syntax rules, Gerber files are parsed, Gerber file data information is drawn；
S200：The Gerber file data information drawn according to parsing, calculates the parameter information of image, calls preset pattern
Rasterization algorithm；
S300：Finally giving needs the image and data message of preview.
Alternatively, it is described according to Gerber syntax rules referring to Fig. 2, Gerber files are parsed, Gerber is drawn
The step of file data information, is specific as follows：
Data message useful in Gerber files is extracted, is stored according to rasterisation call format in internal memory；
Gerber document analysis obtains the information of Gerber files in terms of four：Gerber file functions code analysis,
The parsing of Gerber file AD codes, the parsing of Gerber file AM codes, Gerber file coordinate resolutions.
Alternatively, the rasterization algorithm of the preset pattern includes fundamental figure rasterization algorithm；
The fundamental figure rasterization algorithm is on central point pair using straightway when line light gated is carried out
The property of title improves the speed of the generation of straight line；Two pixels of the generation on straight central point symmetry in computing each time
Point；When the rasterisation justified, to improve generation circular velocity, introduce the two-step in graphics and draw circle algorithm.
Specifically, in the present embodiment, pattern rasterization algorithm basic to Gerber is improved：
The basic pattern rasterisations of Gerber include rasterization algorithm (four kinds of the Gerber files main definitions of Gerber points
Point, such as rectangular dots, round dot, elliptical point, regular polygon point) and Gerber straight lines the rasterization algorithm (straight line in graphics
It is the optimal pixel set for approaching ideal line).The rasterisation of fundamental figure is mainly by improved in the project
Bresenham algorithms are completed.It is the property on central point using straightway when line light gated is carried out
Come the speed of the generation that improves straight line.By introducing the Central Symmetry thought of straight line based on the Bresenham algorithms after improvement,
Two pixels on straight central point symmetry are generated during computing each time, that is to say, that the generation of straight line is on center pair
Claim what point was carried out simultaneously so that the circulation of algorithm performs number of times and reduced, the formation speed of straight line is accelerated.In the rasterisation justified
When, to improve generation circular velocity, introduce the two-step in graphics and draw circle algorithm.This algorithm is once calculated by performing
Two pixels are can be obtained by, there is aobvious advantage than single-point generating algorithm, the formation speed of double step can be doubled
Arithmetic speed is faster.
Alternatively, the rasterization algorithm of the preset pattern includes region-filling algorithm；The region-filling algorithm is used
Orderly side table filling algorithm based on threshold value, shortens the execution time of algorithm.
Specifically, in the present embodiment, Gerber region-filling algorithm is improved：
Region-filling algorithm is mainly whether each pixel checked on grating screen is located in polygonal region, that is, determines
Pixel set to be filled.And for the region that curve is surrounded, the method that polygonal segments curved boundary can be used, therefore discuss many
The filling problem for the closed area that side shape border is surrounded, mainly there is following four fill method：In order while table algorithm, while fill calculation
Method, seed fill algorithm, Line Seed Fill Algorithm.In PCB printing manufacture, because user prints essence to various PCB
The requirement of degree is different, and needs to improve production efficiency to greatest extent.So herein according to user to PCB print resolution
Difference is required, orderly side table filling algorithm is improved, and with the orderly side table filling algorithm based on threshold value, shortens algorithm
The execution time, improve the efficiency of Gerber rasterisations.
Alternatively, the rasterization algorithm of the preset pattern includes：Circle and the rasterizing of circular arc, oval rasterisation, just
Polygonal rasterisation, the rasterisation of self-defined figure, the rasterisation of straight line, the rasterisation of area filling.
Embodiment two
The invention provides a kind of Gerber graphics rasterizations system, referring to Fig. 3, Gerber graphics rasterizations system 10 is wrapped
Include：
GerBer document analysis module 100, for according to Gerber syntax rules, parsing, obtaining to Gerber files
Go out Gerber file data information；
Graphics rasterization module 200, for the Gerber file data information drawn according to parsing, calculates the parameter of image
Information, calls the rasterization algorithm of preset pattern；
Graphic preview module 300, the image and data message of preview are needed for finally giving.
Alternatively, the GerBer document analysis module is specifically for data message useful in Gerber files is carried out
Extract, be stored according to rasterisation call format in internal memory；
The GerBer document analysis module 100 includes：
GerBer file morphology resolution unit 110, extraction and processing for GerBer file data information.
GerBer file syntax resolution unit 120, for the analysis of GerBer body of an instrument.
Gerber file function code analysis unit 130, the various parameters for Gerber files are pre-processed.
AD codes in Gerber file AD codes resolution unit 140, record PCB design, for rasterizing.
Gerber file AM codes resolution unit 150, extends AD codes, iris shape is redefined.
Alternatively, the graphics rasterization module 200 includes：Fundamental figure rasterization unit 210, for circle and circular arc
Rasterisation, oval rasterisation, the rasterisation of regular polygon, the rasterisation of straight line；
The fundamental figure rasterization unit 210, is additionally operable to when line light gated is carried out, and is to close using straightway
The speed of the generation of straight line is improved in the property of central point；In computing each time, generation is on straight central point symmetry
Two pixels；When the rasterisation justified, to improve generation circular velocity, the two-step introduced in graphics draws circle
Algorithm.
Alternatively, the graphics rasterization module 200 includes：Area filling rasterization unit 220；
The area filling rasterization unit 220 is used for the rasterisation of area filling, with the orderly side table based on threshold value
Filling algorithm, shortens the execution time of algorithm.
Alternatively, the graphics rasterization module includes self-defined figure rasterization unit 230, for self-defined figure
Rasterisation.
The beneficial effect that technical scheme provided in an embodiment of the present invention is brought is：
(1) the different pels of Gerber files are directed to, specific rasterization algorithm is designed, maximum degree to the greatest extent reduces redundancy
Operation；(2) orderly side table filling algorithm is used, and merges the data characteristicses of Gerber file filling informations, it is proposed that is based on
The adaptive filling algorithm of threshold value, while PCB making accuracy requirements are met, greatly shortens Gerber files rasterisation
Time.
The invention provides a kind of method and system of Gerber graphics rasterizations, it can just be obtained by performing once to calculate
To two pixels, there is aobvious advantage than single-point generating algorithm, the formation speed of double step can double arithmetic speed
Faster.Orderly side table filling algorithm is improved, with the orderly side table filling algorithm based on threshold value, shortens the execution of algorithm
Time, improve the efficiency of Gerber rasterisations.
Presently preferred embodiments of the present invention is these are only, is not intended to limit the invention, it is all in the spirit and principles in the present invention
Within, any modification, equivalent substitution and improvements made etc. should be included in the scope of the protection.
Claims (10)
1. a kind of method of Gerber graphics rasterizations, it is characterised in that including：
According to Gerber syntax rules, Gerber files are parsed, Gerber file data information is drawn；
The Gerber file data information drawn according to parsing, calculates the parameter information of image, calls the rasterisation of preset pattern
Algorithm；
Finally giving needs the image and data message of preview.
2. the method as described in claim 1, it is characterised in that described according to Gerber syntax rules, enters to Gerber files
Row parsing, the step of drawing Gerber file data information is specific as follows：
Data message useful in Gerber files is extracted, is stored according to rasterisation call format in internal memory；
Gerber document analysis obtains the information of Gerber files in terms of four：Gerber file functions code analysis,
The parsing of Gerber file AD codes, the parsing of Gerber file AM codes, Gerber file coordinate resolutions.
3. method as claimed in claim 2, it is characterised in that the rasterization algorithm of the preset pattern includes fundamental figure light
Gated algorithm；
The fundamental figure rasterization algorithm is on central point using straightway when line light gated is carried out
Property improves the speed of the generation of straight line；Two pixels of the generation on straight central point symmetry in computing each time；
When the rasterisation justified, to improve generation circular velocity, introduce the two-step in graphics and draw circle algorithm.
4. method as claimed in claim 3, it is characterised in that the rasterization algorithm of the preset pattern is calculated including area filling
Method；The region-filling algorithm uses the orderly side table filling algorithm based on threshold value, shortens the execution time of algorithm.
5. method as claimed in claim 4, it is characterised in that the rasterization algorithm of the preset pattern includes：Circle and circular arc
Rasterize, the rasterizing of oval rasterisation, regular polygon, the rasterisation of the rasterisation of self-defined figure, straight line, region are filled out
The rasterisation filled.
6. a kind of Gerber graphics rasterizations system, it is characterised in that including：
GerBer document analysis modules, for according to Gerber syntax rules, being parsed to Gerber files, drawing Gerber
File data information；
Graphics rasterization module, for the Gerber file data information drawn according to parsing, calculates the parameter information of image, adjusts
With the rasterization algorithm of preset pattern；
Graphic preview module, the image and data message of preview are needed for finally giving.
7. system as claimed in claim 6, it is characterised in that the GerBer document analysis module is specifically for by Gerber
Useful data message is extracted in file, is stored according to rasterisation call format in internal memory；
The GerBer document analysis module includes：
GerBer file morphology resolution units, extraction and processing for GerBer file data information；
GerBer file syntax resolution units, for the analysis of GerBer body of an instrument；
Gerber file function code analysis units, the various parameters for Gerber files are pre-processed；
AD codes in Gerber file AD code resolution units, record PCB design, for rasterizing；
Gerber file AM code resolution units, extend AD codes, iris shape are redefined.
8. system as claimed in claim 7, it is characterised in that the graphics rasterization module includes：Fundamental figure is rasterized
Unit, for circle and the rasterizing of circular arc, oval rasterisation, the rasterisation of regular polygon, straight line rasterisation；
The fundamental figure rasterization unit, is additionally operable to when line light gated is carried out, is on center using straightway
The property of point symmetry improves the speed of the generation of straight line；Two on straight central point symmetry are generated in computing each time
Pixel；When the rasterisation justified, to improve generation circular velocity, introduce the two-step in graphics and draw circle algorithm.
9. system as claimed in claim 8, it is characterised in that the graphics rasterization module includes：Area filling is rasterized
Unit；
The area filling rasterization unit is used for the rasterisation of area filling, fills and calculates with the orderly side table based on threshold value
Method, shortens the execution time of algorithm.
10. system as claimed in claim 9, it is characterised in that the graphics rasterization module includes self-defined graphic raster
Change unit, the rasterisation for self-defined figure.
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Cited By (5)
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| CN109683833A (en) * | 2018-12-19 | 2019-04-26 | 森大（深圳）技术有限公司 | Image enchancing method, system, equipment and storage medium to be printed |
| CN109683834A (en) * | 2018-12-19 | 2019-04-26 | 森大（深圳）技术有限公司 | Gerber file converts precision processing method, system, equipment and storage medium |
| CN109710264A (en) * | 2018-12-19 | 2019-05-03 | 森大（深圳）技术有限公司 | Gerber file method for transformation, system, equipment and storage medium |
| CN113256764A (en) * | 2021-06-02 | 2021-08-13 | 南京芯瞳半导体技术有限公司 | Rasterization device and method and computer storage medium |
| CN114862987A (en) * | 2022-05-27 | 2022-08-05 | 苏州天准科技股份有限公司 | Method for improving reliability of data link |
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| CN109683833A (en) * | 2018-12-19 | 2019-04-26 | 森大（深圳）技术有限公司 | Image enchancing method, system, equipment and storage medium to be printed |
| CN109683834A (en) * | 2018-12-19 | 2019-04-26 | 森大（深圳）技术有限公司 | Gerber file converts precision processing method, system, equipment and storage medium |
| CN109710264A (en) * | 2018-12-19 | 2019-05-03 | 森大（深圳）技术有限公司 | Gerber file method for transformation, system, equipment and storage medium |
| CN109683833B (en) * | 2018-12-19 | 2022-04-15 | 森大（深圳）技术有限公司 | Method, system, device and storage medium for enhancing image to be printed |
| CN109683834B (en) * | 2018-12-19 | 2022-05-17 | 森大（深圳）技术有限公司 | Gerber file conversion precision processing method, system, equipment and storage medium |
| CN109710264B (en) * | 2018-12-19 | 2022-06-14 | 森大（深圳）技术有限公司 | Gerber file conversion method, system, device and storage medium |
| CN113256764A (en) * | 2021-06-02 | 2021-08-13 | 南京芯瞳半导体技术有限公司 | Rasterization device and method and computer storage medium |
| CN114862987A (en) * | 2022-05-27 | 2022-08-05 | 苏州天准科技股份有限公司 | Method for improving reliability of data link |
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