Geographic space region data multi-scale visualization method based on variable coefficient
A technique of coefficient of variation, area data, applied in the field of information
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[0035] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0036] Such as figure 1 As shown, the multi-scale visualization method of geospatial regional data based on the coefficient of variation, the specific steps are:
[0037] Step (1) Delaunay triangulation and hierarchical clustering are performed on the original geospatial area data to generate Voronoi diagrams and hierarchical clustering trees, which are used to guide the optimal scale selection in the next step. In most cases, the hierarchical relationship of geographic space is determined by the division of administrative regions. However, due to the actual geographical relationship, the hierarchical relationship of administrative regions cannot effectively express and reflect the hierarchical relationship of actual data. According to the attribute information reflected by different regional nodes, the present invention adopts a hierarchic...
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