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gvSIG-Desktop 1.9. User manual
Envolvente convexa
Envolvente convexa
This geoprocess calculates the “Convex hull”, or the smallest convex polygon which surrounds all the vector elements in an “input layer”.
It only works with an “input layer” whose geometry type can be any type (point, line or polygon). There are different types of applications for this geoprocess: Determining the coverage area for a specific geographical phenomenon.
Calculating the diameter of the area covered by a series of geometries, etc.
Creación de una 'Envolvente convexa' (Convex Hull)
If you select the “Convex hull” geoprocess, the following dialogue appears:
After selecting the layer whose “Convex Hull” you wish to calculate and specifying an shp result file, you can run the geoprocess and generate a new result layer.
The following image shows the convex hull created which surrounds all the points in the input layer.
