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Method for processing pipeline census data diagram-forming character avoidance

A processing method and text technology, applied in image data processing, data processing applications, image analysis, etc., can solve problems such as static avoidance, framing errors, low efficiency, etc., and achieve the effect of improving efficiency and accuracy

Active Publication Date: 2017-04-26
中国电建集团市政规划设计研究院有限公司
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Problems solved by technology

[0003] In order to make up for the low efficiency of existing text avoidance methods, the inability to static avoidance, and the existence of framing errors, etc., the present invention provides a processing method for text avoidance of pipeline census data, which realizes fast and effective text avoidance of two-dimensional drawings. Static avoidance processing of the whole image, and the avoidance result will not lead to wrong cutting of text in the framed image, improving the efficiency and accuracy of pipeline data into image text trimming

Method used

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  • Method for processing pipeline census data diagram-forming character avoidance
  • Method for processing pipeline census data diagram-forming character avoidance
  • Method for processing pipeline census data diagram-forming character avoidance

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Embodiment Construction

[0031] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0032] (1) In the urban pipeline census database system, input the census content according to the format requirements of the system, the format includes the position of dots and lines and display text, check the basic correctness of the data obtained by the system, and generate the basic two through the built-in functions of the system Vitu;

[0033] (2) Carry out rectangular framing of the basic two-dimensional map obtained in step (1) according to the required drawing scale and framing size, and number them in sequence from left to right and from top to bottom, such as figure 2 As shown, the framed image is obtained;

[0034] (3) According to the spatial containment relationship, query and use the order from left to right and from upper left to lower right to traverse the text labels in each frame obtained in step (2), set the frame number of each ...

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Abstract

The invention discloses a method for processing pipeline census data diagram-forming character avoidance. The method comprises the steps of: inputting census data, carrying out basic correctness checking on the data and generating a basic two-dimensional diagram; framing the two-dimensional diagram according to a diagram-making scale and a framing size; calculating character-labeled boundaries and polygonal overlapping areas in framed diagrams; calculating avoidance priority according to the overlapping areas, and carrying out superposed pushing avoidance based on a sliding model in combination with a divide-and-conquer algorithm according to character objects; carrying out boundary constraint avoidance and local optimization according to the framed boundaries and character polygons; and carrying out integration and splicing on the framed data, storing new labeled position information to complete avoidance processing. According to the method, the character avoidance of a two-dimensional drawing is realized rapidly and effectively, the whole drawing is processed through static avoidance, the avoidance result does not cause error segmentation of characters in the framed diagrams, the efficiency and the accuracy of urban pipeline data diagram-forming character decoration.

Description

technical field [0001] The invention relates to a processing method for pipeline census data in urban underground space, in particular to a processing method for pipeline census data into graphics and text avoidance. Background technique [0002] Urban underground pipelines are an important infrastructure of the city, including water supply, drainage, heat, gas, electricity, telecommunications, industrial and comprehensive pipelines (corridors), etc. These pipelines are constructed and managed by multiple units. Two-dimensional drawings are important archives for the planning and design, approval, construction, completion, operation and maintenance of urban underground pipelines. Due to the large amount of data and the complexity of the situation, the text labels in the two-dimensional drawings are overlapped and squeezed, making it difficult to read. The existing text avoidance methods are based on local dynamic avoidance, and there are cases where the labels are incorrectl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F9/44G06Q50/26G06T7/60
Inventor 高才坤吴学明孙继鹏徐辉张志清徐智勇
Owner 中国电建集团市政规划设计研究院有限公司
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