CN101159065A - Computer automatic drafting method of complicated map symbol - Google Patents
Computer automatic drafting method of complicated map symbol Download PDFInfo
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- CN101159065A CN101159065A CNA200710053790XA CN200710053790A CN101159065A CN 101159065 A CN101159065 A CN 101159065A CN A200710053790X A CNA200710053790X A CN A200710053790XA CN 200710053790 A CN200710053790 A CN 200710053790A CN 101159065 A CN101159065 A CN 101159065A
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Abstract
The invention relates to a computer automatically-drawing method for complex map symbols. The method includes the following steps: setting map symbols model module in a computer system, and establishing an image unit parameter model based on the map symbols model module, wherein the image unit parameter model is composed of basic image unit types and set parameters thereof; providing a symbol data file for drawing and outputting, wherein the symbol data of the complex map symbols is obtained by the following steps: resolving complex map symbols into basic image units based on the image unit parameter model, setting the set parameters based on the image unit parameter model obtained by resolution, and storing the basic image unit types and the set parameter results in the symbol data file; and setting an automatic drawing module for the map symbols in the computer system, wherein the module reads correspondent basic image units and the set parameters in the symbol data file based on the drawing target to realize drawing and outputting. The invention promotes describing system of the map symbols and can realize computer automatic drawing of all map symbols, which has important application in geographic information field.
Description
Technical field
The invention belongs to the geographical information technology field, particularly a kind of computer automatic drafting method of complicated map symbol.
Background technology
The Map Expression of spatial information is an important output function in existing Geographic Information System and the map making system, is one of essential characteristic of map and use special graphical symbol performance geographic element and phenomenon.Therefore, the automatic drafting of the various map symbols of realization is keys of the visual expression of geography information in Geographic Information System and map making system.Existing map symbol automatic drafting method can be divided into two kinds: function method and configuration parameter method.Function method is the special drafting function of each map symbol design, make the characteristics that can take into full account each symbol in this way, the symbol of drawing out is comparatively meticulous, but, because map symbol is of a great variety, the realization of function method need design a large amount of drafting functions, and exists bulk redundancy between the drafting function of similar symbol, is difficult for sharing.The configuration parameter method is on the function method basis configuration rule of map symbol to be summarized and parametric description, and same class map symbol uses identical drafting function to add that different configuration parameters can generate corresponding map symbol.This method has unified denotational description mechanism, can use identical symbol plotting mode to draw a class map symbol automatically.Yet the point, line, surface symbol that existing map symbol configuration parameter can only description rule can't use existing symbol configuration parameter to carry out unified description for complex symbol (as: stone matter collapses map symbols such as precipice, stone matter cliff).Therefore, this class symbol all can't be realized automatic drafting, makes existing map symbol drafting system automatically have incompleteness, has reduced the function of the visual expression of geography information of Geographic Information System and map making system.
Summary of the invention
The object of the invention is to provide a kind of computer automatic drafting method with complicated map symbol of versatility, can draw the complicated map symbol that is difficult to draw in existing Geographic Information System and the map making system automatically.
Technical scheme of the present invention may further comprise the steps:
Step 1 is provided with the map symbol model module in computer system, the map symbol model module is set up the pel parameter model, and the pel parameter model is made up of element figure type and configuration parameter;
Step 2 is provided for drawing the symbol data file of output, and the symbol data of complicated map symbol is obtained by following steps,
According to the pel parameter model complicated map symbol is resolved into element figure;
For decomposing the element figure that obtains configuration parameter is set according to the pel parameter model;
Element figure and configuration parameter are saved in the symbol data file;
Step 3 is provided with the automatic drafting module of map symbol in computer system, the automatic drafting module of map symbol reads corresponding element figure and configuration parameter in the symbol data file according to render target, realizes drawing output.
And, the table of comparisons of spatial data and map symbol is set, be converted to the render target map symbol according to the table of comparisons after the render target spatial data input computer system, the automatic drafting module of input map symbol.
And the element figure type in the pel parameter model comprises ellipse, circular arc, fan-shaped, triangle, rectangle, broken line, curve and polygon.
And the configuration parameter in the pel parameter model comprises that the anglec of rotation, repeated configuration, fixed point dispose, could be out of shape, could extend, vertical direction repeated configuration, the configuration of vertical direction fixed point, vertical direction could be out of shape, vertical direction could be extended, the face symbol is filled type and the function hachure is filled.
And the symbol data file adopts binary format or XML form.
Method provided by the invention can be decomposed into element figure with the complicated map symbol in the render target, the ingenious complicated map symbol Task Switching of will drawing is for drawing a plurality of simple element figure tasks, and map symbol configuration parameters such as the configuration of vertical direction repeated configuration, vertical direction fixed point, vertical direction could be out of shape, vertical direction could be extended have been increased, perfect map symbol description system, thus make computer program can accurately realize the automatic drafting of complicated map symbol according to these configuration parameters.And the present invention set up the pel parameter model of map symbol, makes the pel setting of map symbol and configuration parameter setting be separated, more easily the description of schematic symbol and computer realization.Technical scheme of the present invention is easy to implement, and has outstanding dirigibility and versatility, can strengthen the function of map visualization in Geographic Information System and the map making system.
Description of drawings
The map symbol pel parameter model of Fig. 1 embodiment of the invention;
The stone matter of Fig. 2 embodiment of the invention collapses the automatic drawing result of precipice symbol;
The automatic drawing result of sandy cliff symbol of Fig. 3 embodiment of the invention;
The automatic drawing result of stone matter cliff symbol of Fig. 4 embodiment of the invention;
The automatic drawing result of steep bank symbol of Fig. 5 embodiment of the invention.
Embodiment
The present invention is directed to the composition characteristics of the complicated map symbol in the map making system, set up a cover and can describe the element figure type and the configuration parameter of these characteristics, the map symbol pel parameter model that is made of element figure type and configuration parameter thereof is the basis of realizing the computer automatic drafting of complicated map symbol.Because it is that the composition of complicated map symbol is resolved and summed up that the element figure type in the pel parameter model is set, during concrete enforcement, the technician can set according to concrete needs, the invention provides one and be enclosed within the more complete element figure type of proof in the experiment, comprising ellipse, circular arc, fan-shaped, triangle, rectangle, broken line, curve, polygon.Cooperate configuration parameter, this cover element figure type can satisfy the needs of drawing complicated map symbol commonly used substantially.When drawing a kind of complicated map symbol, often need be out of shape convergent-divergent or position adjustment to its corresponding element figure, the present invention is on the basis of drawing common configuration parameter, consider the composition characteristics of complicated map symbol, it is more accurate that configuration parameter is expanded so that draw effect, presses close to national drafting standard.Comprise the configuration parameter provided by the invention anglec of rotation, repeated configuration, fixed point dispose, could be out of shape, could extend, vertical direction repeated configuration, the configuration of vertical direction fixed point, vertical direction could be out of shape, vertical direction could be extended, the face symbol is filled type, the function hachure is filled.During concrete enforcement, configuration parameter is set can be different, map symbol pel parameter model referring to the embodiment of the invention among Fig. 1, the content of in the configuration parameter complicated line signal being carried out conversion comprises that conventional repeated configuration, fixed point disposes, could be out of shape, could extend, and vertical direction repeated configuration, vertical direction fixed point dispose, vertical direction could be out of shape, vertical direction could be extended, line width variation rate, stochastic distribution.
The computer automatic drafting method of complicated map symbol provided by the invention may further comprise the steps: step 1, the map symbol model module is set in computer system, the map symbol model module is set up the pel parameter model, and the pel parameter model is made up of element figure type and configuration parameter;
Step 2 is provided for drawing the symbol data file of output, and the symbol data of complicated map symbol is obtained by following steps: according to the pel parameter model complicated map symbol is resolved into element figure; For decomposing the element figure that obtains configuration parameter is set according to the pel parameter model; Element figure type and configuration parameter result are saved in the symbol data file;
Step 3 is provided with the automatic drafting module of map symbol in computer system, the automatic drafting module of map symbol reads corresponding element figure and configuration parameter in the symbol data file according to render target, realizes drawing output.
Because in the map making field, map symbol has its national standard or industry standard, therefore after the present invention sets up the pel parameter model, according to complicated map symbol is also stored for the symbol data of conversion element figure and configuration parameter composition, only need to call the corresponding data that meet according to render target when needing to draw and get final product, the symbol data of complicated map symbol can repeatedly use.During concrete enforcement, can realize that one overlaps the visual auxiliary system that is provided with of map symbol element figure and configuration parameter thereof by software, be used to the element figure and the configuration parameter thereof that make things convenient for the user that map symbol is set, can also carry out the automatic drafting and the test of map symbol simultaneously.It should be noted that, except complicated map symbol, simple map symbol also can adopt this method to draw automatically, more simple when difference is only just resolved into element figure and configuration parameter is set in the step 2, therefore in fact method provided by the invention can be used for complete realization mapping task.
In order directly to be converted to map to the spatial data that Geographic Information System obtains, the present invention further provides the robotization processing scheme: the table of comparisons that spatial data and map symbol are set, after render target spatial data input computer system, spatial data is converted to the render target map symbol according to the table of comparisons, the automatic drafting module of render target map symbol input map symbol, read corresponding element figure and configuration parameter in the symbol data file, realize drawing output.This scheme has realized measuring in the geographical mapping slitless connection of drafting.
The present invention need set up the data file of stored symbols data, and this symbol data file can adopt two kinds of forms: binary format or XML form.This dual mode can be stored in the element figure type and the configuration parameter thereof of map symbol in the symbol data file according to structurized mode.
Referring to Fig. 2～5, understand the effect of automatic drafting method provided by the present invention for the ease of image, the invention provides the automatic drawing result that the stone matter of embodiment collapses precipice symbol, sandy cliff symbol, stone matter cliff symbol and steep bank symbol.Can see clearly that the result of these computer automatic draftings has fully finished the visual expression task of corresponding geography information, meets geography information field digitizing needs.
Claims (5)
1. the computer automatic drafting method of complicated map symbol is characterized in that may further comprise the steps:
Step 1 is provided with the map symbol model module in computer system, the map symbol model module is set up the pel parameter model, and the pel parameter model is made up of element figure type and configuration parameter;
Step 2 is provided for drawing the symbol data file of output, and the symbol data of complicated map symbol is obtained by following steps,
According to the pel parameter model complicated map symbol is resolved into element figure;
For decomposing the element figure that obtains configuration parameter is set according to the pel parameter model;
Element figure type and configuration parameter result are saved in the symbol data file;
Step 3 is provided with the automatic drafting module of map symbol in computer system, the automatic drafting module of map symbol reads corresponding element figure and configuration parameter in the symbol data file according to render target, realizes drawing output.
2. computer automatic drafting method according to claim 1, it is characterized in that: the table of comparisons that spatial data and map symbol are set, be converted to the render target map symbol according to the table of comparisons after the render target spatial data input computer system, the automatic drafting module of input map symbol.
3. computer automatic drafting method according to claim 1 and 2 is characterized in that: the element figure type in the pel parameter model comprises ellipse, circular arc, fan-shaped, triangle, rectangle, broken line, curve and polygon.
4. computer automatic drafting method according to claim 1 and 2 is characterized in that: the configuration parameter in the pel parameter model comprises that the anglec of rotation, repeated configuration, fixed point dispose, could be out of shape, could extend, vertical direction repeated configuration, the configuration of vertical direction fixed point, vertical direction could be out of shape, vertical direction could be extended, the face symbol is filled type and the function hachure is filled.
5. computer automatic drafting method according to claim 1 and 2 is characterized in that: the symbol data file adopts binary format or XML form.
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Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101916297A (en) * | 2010-08-30 | 2010-12-15 | 东南大学 | Method for quickly mapping by batch symbolization |
| CN102157001A (en) * | 2011-04-14 | 2011-08-17 | 中国测绘科学研究院 | Method and system for drawing electronic map |
| CN101799933B (en) * | 2010-02-03 | 2012-01-11 | 南京师范大学 | Conversion method of TrueType symbol and spotted map symbol based on path |
| CN101667193B (en) * | 2009-09-28 | 2012-03-28 | 北京师范大学 | Surface layer rendering method and device of geographic information application system |
| CN101751682B (en) * | 2009-12-31 | 2012-11-14 | 武汉大学 | Preparation method of universal map |
| CN101782400B (en) * | 2010-02-03 | 2012-11-28 | 南京师范大学 | Planar map symbol model based on path and sharing method based on same |
| CN103176990A (en) * | 2011-12-21 | 2013-06-26 | 方正国际软件(北京)有限公司 | Spatial data storage and spatial data storage reading method and spatial data storage reading system |
| CN103268626A (en) * | 2013-04-11 | 2013-08-28 | 江苏省在这里数字科技有限公司 | Map linear symbol drawing method and system based on graphics processing unit (GPU) |
| CN103593402A (en) * | 2013-10-16 | 2014-02-19 | 广东电网公司电力科学研究院 | Grid equipment graphic element allocation method |
| CN104081439A (en) * | 2012-01-31 | 2014-10-01 | 三菱电机株式会社 | Map drawing device, navigation device and map drawing method |
| CN104094316A (en) * | 2012-01-31 | 2014-10-08 | 三菱电机株式会社 | Map drawing device, navigation device and map drawing method |
| CN105513110A (en) * | 2016-01-11 | 2016-04-20 | 南京师范大学 | GPU-based method for drawing linetype map symbol with gradually-varied width |
| CN111028353A (en) * | 2019-12-26 | 2020-04-17 | 南京师范大学 | Vector map line symbol dovetail arrow drawing method considering line width consistency |
| CN111127589A (en) * | 2019-12-26 | 2020-05-08 | 南京师范大学 | Vector map circular dotted line symbol drawing method considering line width consistency |
| CN111145297A (en) * | 2019-12-26 | 2020-05-12 | 南京师范大学 | Vector map line symbol diamond-shaped arrow drawing method considering line width consistency |
| CN111145296A (en) * | 2019-12-26 | 2020-05-12 | 南京师范大学 | Vector map line symbol circular arrow drawing method considering line width consistency |
| CN111145298A (en) * | 2019-12-26 | 2020-05-12 | 南京师范大学 | Vector map fence dotted line symbol drawing method considering line width consistency |
| CN111324403A (en) * | 2020-01-17 | 2020-06-23 | 中国人民解放军战略支援部队信息工程大学 | Visualization method and device for relation edges of static relation network |
-
2007
- 2007-11-08 CN CNA200710053790XA patent/CN101159065A/en active Pending
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101667193B (en) * | 2009-09-28 | 2012-03-28 | 北京师范大学 | Surface layer rendering method and device of geographic information application system |
| CN101751682B (en) * | 2009-12-31 | 2012-11-14 | 武汉大学 | Preparation method of universal map |
| CN101799933B (en) * | 2010-02-03 | 2012-01-11 | 南京师范大学 | Conversion method of TrueType symbol and spotted map symbol based on path |
| CN101782400B (en) * | 2010-02-03 | 2012-11-28 | 南京师范大学 | Planar map symbol model based on path and sharing method based on same |
| CN101916297A (en) * | 2010-08-30 | 2010-12-15 | 东南大学 | Method for quickly mapping by batch symbolization |
| CN101916297B (en) * | 2010-08-30 | 2012-05-23 | 东南大学 | Method for quickly mapping by batch symbolization |
| CN102157001A (en) * | 2011-04-14 | 2011-08-17 | 中国测绘科学研究院 | Method and system for drawing electronic map |
| CN103176990A (en) * | 2011-12-21 | 2013-06-26 | 方正国际软件(北京)有限公司 | Spatial data storage and spatial data storage reading method and spatial data storage reading system |
| CN104081439A (en) * | 2012-01-31 | 2014-10-01 | 三菱电机株式会社 | Map drawing device, navigation device and map drawing method |
| CN104094316A (en) * | 2012-01-31 | 2014-10-08 | 三菱电机株式会社 | Map drawing device, navigation device and map drawing method |
| CN104094316B (en) * | 2012-01-31 | 2017-11-21 | 三菱电机株式会社 | Map drawing device, guider and method for drawing map |
| CN103268626A (en) * | 2013-04-11 | 2013-08-28 | 江苏省在这里数字科技有限公司 | Map linear symbol drawing method and system based on graphics processing unit (GPU) |
| CN103593402A (en) * | 2013-10-16 | 2014-02-19 | 广东电网公司电力科学研究院 | Grid equipment graphic element allocation method |
| CN105513110A (en) * | 2016-01-11 | 2016-04-20 | 南京师范大学 | GPU-based method for drawing linetype map symbol with gradually-varied width |
| CN111028353A (en) * | 2019-12-26 | 2020-04-17 | 南京师范大学 | Vector map line symbol dovetail arrow drawing method considering line width consistency |
| CN111127589A (en) * | 2019-12-26 | 2020-05-08 | 南京师范大学 | Vector map circular dotted line symbol drawing method considering line width consistency |
| CN111145297A (en) * | 2019-12-26 | 2020-05-12 | 南京师范大学 | Vector map line symbol diamond-shaped arrow drawing method considering line width consistency |
| CN111145296A (en) * | 2019-12-26 | 2020-05-12 | 南京师范大学 | Vector map line symbol circular arrow drawing method considering line width consistency |
| CN111145298A (en) * | 2019-12-26 | 2020-05-12 | 南京师范大学 | Vector map fence dotted line symbol drawing method considering line width consistency |
| CN111324403A (en) * | 2020-01-17 | 2020-06-23 | 中国人民解放军战略支援部队信息工程大学 | Visualization method and device for relation edges of static relation network |
| CN111324403B (en) * | 2020-01-17 | 2024-02-27 | 中国人民解放军战略支援部队信息工程大学 | Visualization method and device for relationship edges of static relationship network |
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