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Build convex hull algorithms
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Using the c # language, developed from the convex hull of scattered points generated in the program. The convex hull algorithm used in this procedure consists of several steps: 1. retrieve xmin, xmax, ymin, and ymax;2. sequential insert other convex hull points.
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Point cloud border generation algorithm
4.0
Given a set of n points, build its borders (not necessarily convex boundary) is commonly used in graphics processing method. This procedure using a rolling ball, and connecting points boundaries, and generates an enclosing polygon containing all the points.
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OSM data download
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OSM is the world's largest database of open maps, allow anyone to freely upload, identity map data, also allows users to freely download the map, is the world's fastest-updated site map vector data. Download OSM data for scientific research, production, and are of great use. This program uses c # and HTTP protocols, enables the automatic download of OSM data.
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Compact ARCGIS map data reading program
4.0
ARCGIS publish map services, generates compact map tile data. Read the compact tile data, is of great use. This program gives the compact tiling, tile data index file structure, file structure, as well as read and display methods.
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DBSCAN algorithm
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Spatial cluster analysis, spatial data mining and knowledge discovery in space and has a very important purpose, which is one of the most classical clustering algorithm DBSCAN algorithm. DBSCAN algorithm by nearby RADIUS and minimum number of adjacent points to two parameters, thus the point set is divided into several clusters, cluster point as close as possible, between clusters of points as far away as possible.
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Map tile map service
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Map tile service is the map tile data have been generated according to a certain URL to be released, one way to share maps. This procedure completed the map tile files of sample program, for your reference.
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GOOGLE maps tiles merge tool
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Google map tile data can be downloaded freely from the Google Web site, merge it into the map, has a good use. The program automatically specifies the directory of tile, merged into a single map.
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