Thermodynamic diagram generating method, thermodynamic diagram generating device, thermodynamic diagram generating equipment and computer readable storage medium
A heat map and map technology, applied in the field of image processing, can solve the problems of high computational complexity, difficult to achieve interaction-level response, and reduce user experience, so as to reduce complexity, achieve interaction-level response, and improve practicability. Effect
Active Publication Date: 2020-01-10
BAIDU ONLINE NETWORK TECH (BEIJIBG) CO LTD
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[0004] The present invention provides a method, device, device and computer-readable storage medium for generating a heat map, which are used to solve the problems in the prior art that the calculation complexity is very high, and it is almost difficult to achieve an interactive level response, thereby reducing the user experience. The problem
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[0033] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present invention. Rather, they are merely examples of apparatuses and methods consistent with aspects of the invention as recited in the appended claims.
[0034] figure 1 A schematic flowchart of a method for generating a heat map provided by an embodiment of the present invention; figure 2 A schematic flow chart of another method for generating a thermodynamic map provided in an embodiment of the present invention; refer to the attached Figure 1-2 As shown, this embodiment provides a method for generating a heat map, which is applicable to LB...
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The invention provides a thermodynamic diagram generating method, a thermodynamic diagram generating device, thermodynamic diagram generating equipment and a computer readable storage medium. The method comprises the following steps of obtaining a plurality of discrete longitude and latitude data points in a preset regional range; mapping the longitude and latitude data points onto a map display region; installing a plurality of geographic rasters on the map display region in advance; determining the weight of each geographic raster according to the longitude and latitude data points; mappingthe geographic raster onto the pixel point positions of a screen map; for the geographic rasters with different weights, giving different colors to the pixel points according to a preset drawing strategy; and generating a thermodynamic diagram. By using the technical scheme, the weights of the geographic rasters can be directly determined through the longitude and latitude data points; and for thegeographic rasters with different weights, different colors are given to the pixel points according to the preset drawing strategy, so that the thermodynamic diagram is generated. The complication degree of the weight calculation of the geographic rasters in the thermodynamic diagram is effectively reduced; and the interaction level response during the real-time thermodynamic diagram calculationcan be favorably realized.
Description
technical field [0001] The present invention relates to the technical field of image processing, in particular to a method, device, equipment and computer-readable storage medium for generating a thermal map. Background technique [0002] A heat map is essentially a density distribution map of target elements and is widely used in the field of data visualization. Map heat maps are used to display the geographical density distribution of target elements (such as people), and are often one of the core functions of LBS services such as geographic information systems (GIS) and online map applications. The interactive map heat map can be further dynamically drawn based on data distribution and user operations such as dragging, circle selection, zooming in and out, etc., which can be used to realize rich business needs such as crowd flow monitoring and site selection planning. [0003] In the prior art, a heat map can be generated using a kernel density analysis method, wherein t...
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IPC IPC(8): G09B29/00
CPCG09B29/007
Inventor 吴秋彬欧阳显雅汤金华陈炜于
Owner BAIDU ONLINE NETWORK TECH (BEIJIBG) CO LTD