Printing method of cross-panel pagination based on geographic pdf map

A geography and map technology, applied in digital output to printing unit, input/output process of data processing, electrical digital data processing, etc. splicing printing and other problems, to achieve the effect of high pagination and edge precision, improved pagination and edge precision, and a large printing range

A geography and map technology, applied in digital output to printing unit, input/output process of data processing, electrical digital data processing, etc. splicing printing and other problems, to achieve the effect of high pagination and edge precision, improved pagination and edge precision, and a large printing range

CN108491173BActive Publication Date: 2021-07-16中国人民解放军61540部队
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  • Printing method of cross-panel pagination based on geographic pdf map
  • Printing method of cross-panel pagination based on geographic pdf map
  • Printing method of cross-panel pagination based on geographic pdf map

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Experimental program
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Embodiment Construction

[0038] The present invention will be described in detail below in combination with specific embodiments.

[0039] Existing geographic PDF map products are mostly used by non-professional users, and it is difficult to meet the professional needs of the GIS field for printing across maps and pages. The present invention is based on the plane coordinate system in the geographical PDF map, and through preprocessing such as the rotation of the geographical PDF map, the spatial references of the geographical PDF maps of different maps are kept consistent, and the map grid is planned in a unified page layout, aiming at the set grid Extract the content corresponding to the geographical PDF map of different map frames, and finally output it on the printer that has been planned by paging.

[0040] The idea of ​​the present invention is to preprocess the geographical PDF map data, so that the content of the adjacent map geographical PDF map surface maintains the spatial reference consist...

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Abstract

The invention relates to a cross-frame paging printing method based on a geographic PDF map. The geographic PDF map data is preprocessed, so that the content of the geographic PDF map of adjacent map frames maintains the spatial reference consistency, and is selected based on the connection chart to be printed. The geographic PDF map data range, retrieve the geographic PDF map file, according to the set geographic PDF map printing layout and pagination printing parameters, use the set grid to extract the content corresponding to the geographic PDF map of different map sheets, supplemented by necessary elements , and paginate the output directly on the printer. This method has a large printing range, supports selecting a large range of map content across the map within the effective range of geographic PDF map data in the same projection zone, and prints it out, and it improves the efficiency of making large wall charts or paper atlases for later stitching and gluing. Page margin accuracy.

Description

technical field [0001] The invention belongs to the technical field of geographical PDF map drawing, and in particular relates to a method for printing cross-map pages and pages based on geographical PDF maps. Background technique [0002] Geographic PDF map is a new type of map product between traditional electronic map and paper map. It not only has the characteristics of stable and reliable surface effects of paper maps, but also has the characteristics of free zooming and query analysis of traditional electronic maps, and it can be independent of GIS system, and can be applied to professional and non-professional users at the same time. [0003] Ordinary geographic PDF maps are usually produced by frame, and each frame corresponds to a geographic PDF map file. For non-professional applications, any commercial software that can browse PDF files can basically print map pages directly, but it can't do anything for cross-frame printing of adjacent frames. As the scope of a...

Claims

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Application Information

Patent Timeline
16 Jul 2021
Publication
CN108491173B
IPC
G06F3/12
CPC
G06F3/125; G06F3/1253
Inventors
何列松; 周校东