A method and device for constructing a trend analysis graph

A technology of trend analysis and construction method, applied in the direction of structured data retrieval, extraction from basic elements, geographic information database, etc., can solve problems such as slow calculation speed and inability to apply electronic map vector graphics to improve calculation efficiency and reduce The effect of the number of draws

Active Publication Date: 2019-03-05
AGRICULTURAL BANK OF CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In electronic map technology, geographic data needs to be displayed and analyzed in real time with vector trend analysis graphics, but the traditional Marching Square method cannot be applied to vector graphics drawing in electronic map technology due to its slow calculation speed

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  • A method and device for constructing a trend analysis graph
  • A method and device for constructing a trend analysis graph
  • A method and device for constructing a trend analysis graph

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Embodiment 1

[0057] See figure 1 , which shows a flow chart of the method for constructing a trend analysis graph provided by the present application, which may include the following steps:

[0058] Step S11: Obtain a vector input parameter as an input matrix, and the vector input parameter is a set of a series of input scattered points.

[0059] In this embodiment, the vector input parameters are data with magnitude and direction, and the vector input parameters are related to the type of trend analysis diagram to be constructed. If the type of trend analysis diagram to be constructed is a temperature trend analysis diagram, then the vector input The parameter is the air temperature vector input parameter.

[0060] Wherein, each input scatter point includes coordinate position and attribute value. For example, if the vector input parameter is an air temperature vector input parameter, the set of a series of input scattered points is the set of a series of air temperature input scattered...

Embodiment 2

[0093] Corresponding to the above method embodiment, this embodiment provides a device for constructing a trend analysis graph, please refer to Figure 6 , the device for constructing the trend analysis graph includes: an acquisition module 61 , an interpolation module 62 , a simplification module 63 and a generation module 64 .

[0094] The obtaining module 61 is configured to obtain a vector input parameter as an input matrix, and the vector input parameter is a set of a series of input scattered points.

[0095] The interpolation module 62 is configured to interpolate the input matrix to obtain a dense matrix.

[0096] A simplification module 63, configured to simplify the dense matrix into a sparse matrix.

[0097] The generation module 64 is used to generate a trend analysis diagram by using the Marching Square algorithm and the sparse matrix obtained by the simplification.

[0098] The interpolation module 62 may specifically include: an establishment unit 621 and an i...

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Abstract

The application provides a construction method and device of a trend analysis graph. The construction method of the trend analysis graph comprises the following steps of acquiring vector input parameters as an input matrix, wherein the vector input parameters are a set of a series of input scattered points; interpolating the input matrix, so as to obtain a dense matrix; simplifying the dense matrix into a sparse matrix; generating the trend analysis graph by a Marching Square algorithm and the sparse matrix obtained by simplification. In the application, a vector trend analysis graph can be generated by adopting the manner.

Description

technical field [0001] This application relates to the field of software, in particular to a method and device for constructing a trend analysis graph. Background technique [0002] An electronic map is a digital map, which is a map that is stored and consulted digitally using computer technology. Electronic maps are widely used by the public because of the convenience they bring to users. [0003] In electronic map technology, geographic data needs to be displayed and analyzed in real time with vector trend analysis graphics, but the traditional Marching Square method cannot be applied to vector graphics drawing in electronic map technology due to its slow calculation speed. Contents of the invention [0004] In order to solve the above technical problems, the embodiment of the present application provides a method and device for constructing a trend analysis diagram to achieve the purpose of generating a vector trend analysis diagram. The technical solution is as follow...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T11/20G06F16/29
CPCG06F16/29G06T11/20
Inventor 秦岳白建武
Owner AGRICULTURAL BANK OF CHINA
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