CN115544289A - Web end processing method of large PCB vector diagram - Google Patents
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- CN115544289A CN115544289A CN202211229010.3A CN202211229010A CN115544289A CN 115544289 A CN115544289 A CN 115544289A CN 202211229010 A CN202211229010 A CN 202211229010A CN 115544289 A CN115544289 A CN 115544289A
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Abstract
The invention relates to a PCB vector diagram processing, in particular to a Web end processing method of a large-scale PCB vector diagram, which comprises the steps of dividing a vector diagram file into pixel diagrams by adopting different zoom levels when browsing the vector diagram file, forming picture matrixes of different zoom levels, loading the picture matrixes onto canvas and rendering the canvas; when the vector graph file is dragged, only local vector graphs are rendered, and the vector graphs are moved through dragging operation, so that the overall effect of local browsing is realized; when the vector diagram file is marked, manually framing feature information in the rendering diagram, mutually converting a coordinate system of a feature information area to obtain a PCB coordinate, picking up related data from the vector diagram file by the server based on the PCB coordinate, mutually converting the coordinate system and re-rendering the vector diagram file to a screen canvas; the technical scheme provided by the invention can overcome the defects of low browsing speed and high requirement on professional level of personnel in the prior art when a large-scale PCB vector diagram is browsed.
Description
Technical Field
The invention relates to PCB vector diagram processing, in particular to a Web end processing method of a large-scale PCB vector diagram.
Background
In the laser direct-write lithography equipment, most of circuit diagrams to be printed are vector diagrams, a large number of vector diagrams are contained in the circuit diagrams, the number of the vector diagrams is large and can reach tens of millions, and the storage size of uncompressed graphic files also reaches several GB. For such large vector diagram data, in order to achieve an operation effect in the industry, local drawing applications such as genisis, cad and the like are mostly used when the data are processed; when the web mode is used, only needed scripts and instructions are sent to the application, and the script and the instructions are actually processed or locally processed by the drawing application.
The above method is too dependent on specific local drawing applications, and the use cost of the professional software is high, and the requirement on the professional level of a user is also high. Before the equipment prints a circuit diagram, the equipment operator needs to perform some preprocessing according to actual materials, such as marking targets, adding additional characters and the like, but the personnel are weak in professional level, so that effective operation processing is difficult to perform. In addition, the "Web" of data management has been a great trend, and has the advantages of easy deployment, centralized data management, centralized data processing, and the like.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects in the prior art, the invention provides the Web-end processing method of the large PCB vector diagram, which can effectively overcome the defects of the prior art that the browsing speed is slow when the large PCB vector diagram is browsed and the requirement on the professional level of personnel is high.
(II) technical scheme
In order to realize the purpose, the invention is realized by the following technical scheme:
a Web end processing method of a large-scale PCB vector diagram, while browsing the vector diagram file, use different zoom levels to cut apart the vector diagram file into the pixel map, form the picture matrix of different zoom levels, load the picture matrix on the canvas and carry on the canvas to render;
when the vector graph file is dragged, only local vector graphs are rendered, and the vector graphs are moved through dragging operation, so that the overall effect of local browsing is realized;
when the vector diagram file is marked, feature information in the rendering diagram is manually selected in a frame mode, the feature information area is subjected to coordinate system interconversion to obtain a PCB coordinate, the server picks up relevant data from the vector diagram file based on the PCB coordinate, and the data are re-rendered into a screen canvas after the coordinate system interconversion.
Preferably, the dividing the vector map file into pixel maps with different zoom levels to form a picture matrix with different zoom levels includes:
s1, dividing a vector diagram into pixel diagrams with the same size by using a group of fixed number of scaling levels to form a 0 th-layer picture matrix;
s2, on the basis of the picture matrix of the layer 0, after pixel synthesis is carried out according to a method of synthesizing one pixel by pixels with set size, the picture matrix is divided into picture matrices with the same size as the picture matrix of the layer 0 to form a picture matrix of the layer 1;
and S3, repeating the S2 until an N-1 layer picture matrix is formed, and forming picture matrixes with different zoom levels.
Preferably, the dividing of the vector map into pixel maps of the same size in S1 forms a layer 0 picture matrix, including:
and (3) from the upper left corner of the vector diagram, dividing the vector diagram into pixel diagrams with the same size according to the sequence from left to right and from top to bottom to form a layer 0 picture matrix.
Preferably, the loading the picture matrix onto the canvas comprises:
and the loading of the picture matrix is carried out in a parallel mode, and meanwhile, the loaded picture matrix is cached in a three-level caching mode.
Preferably, before the loading the picture matrix to the canvas, the method includes:
based on the fact that the pixel size in the display content of the Web browser is stable, the canvas is divided into areas with the same size from the left to the right and from top to bottom from the upper left corner of the canvas.
Preferably, the performing canvas rendering comprises:
and splicing from the left upper corner of the picture matrix according to the sequence from left to right and from top to bottom, and rendering a spliced pixel map.
Preferably, browsing the vector graphics file comprises, before:
vectorization processing is carried out on a circuit diagram which describes the ASCII format of the binary image and needs to be printed, a corresponding vector diagram file is obtained, and the vector diagram file is irrelevant to circuit diagram drawing software and a system.
Preferably, when the vector diagram file is marked, manually framing feature information in the rendering graph, performing coordinate system interconversion on the feature information region to obtain PCB coordinates, the server picking up relevant data from the vector diagram file based on the PCB coordinates, performing coordinate system interconversion, and re-rendering to a screen canvas, the method includes:
s1, drawing a selection box by a mouse in a canvas, and framing feature information in a rendering;
s2, processing the framed feature information area by a screen coordinate system, and processing by a canvas coordinate system to obtain a PCB coordinate;
s3, performing effect rendering in the canvas on one hand, and transmitting the PCB coordinates to a server on the other hand;
s4, the server picks up geometric figure data and attribute information from the vector diagram file based on the PCB coordinates after the framed feature information area mapping;
and S5, the picked geometric figure data and the attribute information are re-rendered into a screen canvas after mutual conversion of coordinate systems.
(III) advantageous effects
Compared with the prior art, the method for processing the Web end of the large-scale PCB vector diagram has the following beneficial effects:
1) The method does not depend on specific local drawing application, has low requirement on the professional level of users, and has low use threshold;
2) The operation of the equipment operator is simple when the pretreatment is carried out according to the actual materials, the requirement on the professional level of the equipment operator is not high, and the operation threshold is low;
3) When browsing the vector diagram file, the vector diagram file is divided into pixel diagrams by adopting different zoom levels to form picture matrixes of different zoom levels, and the picture matrixes are loaded on canvas and rendered by the canvas, so that the browsing speed basically same as that of the vector diagram file with the general size can be obtained.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
Fig. 1 is a schematic flow diagram illustrating a process of caching a loaded picture matrix by using a three-level caching manner according to the present invention;
FIG. 2 is a schematic flow chart of the present invention when a vector map file is marked.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.
A Web end processing method of a large-scale PCB vector diagram, (1) when browsing vector diagram files, adopting different zoom levels to divide the vector diagram files into pixel diagrams, forming picture matrixes with different zoom levels, loading the picture matrixes onto canvas and rendering the canvas.
1) Before loading the picture matrix to the canvas, the method comprises the following steps:
based on the fact that the pixel size in the display content of the Web browser is stable, the canvas is divided into areas (X rows and Y columns) with the same size from the left to the right and from top to bottom from the upper left corner of the canvas.
2) Before browsing the vector map file, the method comprises the following steps:
vectorizing a circuit diagram which describes a binary image in an ASCII format and needs to be printed to obtain a corresponding vector diagram file, wherein the vector diagram file is irrelevant to circuit diagram drawing software and a system.
3) Dividing the vector graph file into pixel graphs by adopting different zoom levels to form picture matrixes with different zoom levels, wherein the picture matrixes comprise:
s1, dividing a vector diagram into pixel diagrams with the same size (such as 148 pixels by 148 pixels) by using a group of fixed number of scaling levels (the highest scaling level corresponds to a 0-layer picture matrix) to form a 0-layer picture matrix;
s2, on the basis of the picture matrix of the layer 0, carrying out pixel synthesis according to a method for synthesizing one pixel by pixels with set sizes (2 x 2 pixels), and then dividing the picture matrix into picture matrixes with the same size as the picture matrix of the layer 0 to form a picture matrix of the layer 1;
and S3, repeating the S2 until an N-1 layer picture matrix is formed, and forming picture matrixes with different zoom levels.
Wherein, divide the vector diagram into the pixel map of the same size, form 0 th floor picture matrix, include:
and (3) from the upper left corner of the vector diagram, dividing the vector diagram into pixel diagrams with the same size according to the sequence from left to right and from top to bottom to form a 0-layer picture matrix.
4) Loading a picture matrix onto a canvas, comprising:
the loading of the picture matrix is performed in a parallel manner, so that the generation speed is increased, and meanwhile, the loaded picture matrix is cached in a three-level caching manner (as shown in fig. 1), so that the data transmission speed is increased.
5) Performing canvas rendering, comprising:
and splicing from the left upper corner of the picture matrix according to the sequence from left to right and from top to bottom, and rendering a spliced pixel map.
(2) When the vector graph file is dragged, only local vector graphs are rendered, and the vector graphs are moved through dragging operation, so that the effect of locally browsing the whole body is achieved.
The dragging operation is used for locally browsing the vector diagram file, and the canvas rendering speed and the browsing fluency are improved. The higher the zoom level is, the more the spliced matrix pictures are, the slower the generation speed is, the larger the transmission data amount is, the lower the canvas rendering efficiency is, and the display exceeds the whole screen. At the moment, the screen only renders local vector graphics, and the vector graphics are moved up and down and left and right through dragging operation, so that the overall effect of local browsing is realized.
(3) When the vector diagram file is marked, manually framing feature information in the rendering diagram, mutually converting a coordinate system of a feature information area to obtain a PCB coordinate, picking up related data from the vector diagram file by a server based on the PCB coordinate, mutually converting the coordinate system and then re-rendering the vector diagram file to a screen canvas, and specifically comprising the following steps of:
s1, drawing a selection box by a mouse in a canvas, and framing and selecting feature information (such as a target) in a rendering;
s2, processing the framed feature information area by a screen coordinate system, and processing by a canvas coordinate system to obtain a PCB coordinate;
s3, on one hand, effect rendering is carried out in the canvas, and on the other hand, the PCB coordinates are transmitted to a server;
s4, the server picks up geometric figure data and attribute information from the vector diagram file based on the PCB coordinates after the framed feature information area is mapped;
and S5, the picked geometric figure data and the attribute information are re-rendered into a screen canvas after mutual conversion of coordinate systems, and dynamic processing is carried out during printing.
The image matrixes with different zoom levels have different resolutions, and each resolution needs to establish a corresponding canvas coordinate system which is mapped to a PCB coordinate system through image matrix calculation.
In the technical scheme, all the user-defined information is processed independently, the vector graph file is not operated, and the user-defined information can be processed independently during printing.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions.
Claims (8)
1. A Web end processing method of a large PCB vector diagram is characterized in that: when browsing the vector graphic file, adopting different zoom levels to divide the vector graphic file into pixel maps to form picture matrixes with different zoom levels, loading the picture matrixes onto canvas and rendering the canvas;
when the vector graph file is dragged, only local vector graphs are rendered, and the vector graphs are moved through dragging operation, so that the overall effect of local browsing is realized;
when the vector diagram file is marked, feature information in the rendering diagram is manually selected in a frame mode, the feature information area is subjected to coordinate system interconversion to obtain a PCB coordinate, the server picks up relevant data from the vector diagram file based on the PCB coordinate, and the data are re-rendered into a screen canvas after the coordinate system interconversion.
2. The Web-end processing method of large PCB vector graphics of claim 1, characterized by: the dividing of the vector map file into pixel maps by adopting different zoom levels to form picture matrixes of different zoom levels comprises the following steps:
s1, dividing a vector diagram into pixel diagrams with the same size by using a group of fixed number of zoom levels to form a 0 th-layer picture matrix;
s2, on the basis of the picture matrix of the layer 0, after pixel synthesis is carried out according to a method of synthesizing one pixel by pixels with set size, the picture matrix is divided into picture matrices with the same size as the picture matrix of the layer 0 to form a picture matrix of the layer 1;
and S3, repeating the S2 until an N-1 layer picture matrix is formed, and forming picture matrixes with different zoom levels.
3. The Web-end processing method of large PCB vector graphics of claim 2, characterized in that: in S1, dividing the vector diagram into pixel diagrams with the same size to form a 0 th layer picture matrix, wherein the pixel diagrams comprise:
and (3) from the upper left corner of the vector diagram, dividing the vector diagram into pixel diagrams with the same size according to the sequence from left to right and from top to bottom to form a 0-layer picture matrix.
4. The Web-end processing method of large PCB vector graphics of claim 2, characterized in that: the loading of the picture matrix onto the canvas comprises:
the loading of the picture matrix is carried out in a parallel mode, and meanwhile, the loaded picture matrix is cached in a three-level caching mode.
5. The Web-end processing method of large PCB vector graphics of claim 4, characterized in that: before the picture matrix is loaded to the canvas, the method includes:
based on the fact that the pixel size in the display content of the Web browser is stable, the canvas is divided into areas with the same size from the left to the right and from top to bottom from the upper left corner of the canvas.
6. The Web-end processing method of large PCB vector graphics of claim 4, characterized in that: the performing canvas rendering comprises:
and starting from the upper left corner of the picture matrix, splicing from left to right and from top to bottom, and rendering a spliced pixel map.
7. The Web-end processing method of large PCB vector graphics of claim 1, characterized by: before browsing the vector graph file, the following steps are included:
vectorization processing is carried out on a circuit diagram which describes the ASCII format of the binary image and needs to be printed, a corresponding vector diagram file is obtained, and the vector diagram file is irrelevant to circuit diagram drawing software and a system.
8. The Web-end processing method of large PCB vector graphics of claim 1, characterized by: when the vector diagram file is marked, manually selecting the feature information in the rendering diagram, mutually converting the feature information region through a coordinate system to obtain a PCB coordinate, picking up related data from the vector diagram file by the server based on the PCB coordinate, and re-rendering the vector diagram file to a screen canvas after mutually converting the coordinate system, wherein the method comprises the following steps:
s1, drawing a selection box by a mouse in a canvas, and framing feature information in a rendering graph;
s2, processing the framed feature information area through a screen coordinate system, and processing through a canvas coordinate system to obtain a PCB coordinate;
s3, performing effect rendering in the canvas on one hand, and transmitting the PCB coordinates to a server on the other hand;
s4, the server picks up geometric figure data and attribute information from the vector diagram file based on the PCB coordinates after the framed feature information area is mapped;
and S5, the picked geometric figure data and the attribute information are re-rendered into a screen canvas after mutual conversion of coordinate systems.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116974671A (en) * | 2023-07-20 | 2023-10-31 | 北京爱特拉斯信息科技有限公司 | Vector surface pickup method and device, electronic equipment and storage medium |
| CN117993347A (en) * | 2024-04-07 | 2024-05-07 | 上海合见工业软件集团有限公司 | Target positioning method and device for canvas of printed circuit board, electronic equipment and medium |
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- 2022-10-09 CN CN202211229010.3A patent/CN115544289A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116974671A (en) * | 2023-07-20 | 2023-10-31 | 北京爱特拉斯信息科技有限公司 | Vector surface pickup method and device, electronic equipment and storage medium |
| CN116974671B (en) * | 2023-07-20 | 2024-02-23 | 北京爱特拉斯信息科技有限公司 | Vector surface pickup method and device, electronic equipment and storage medium |
| CN117993347A (en) * | 2024-04-07 | 2024-05-07 | 上海合见工业软件集团有限公司 | Target positioning method and device for canvas of printed circuit board, electronic equipment and medium |
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