1v.hull(1) Grass User's Manual v.hull(1)
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6 v.hull - Uses a GRASS vector points map to produce a convex hull vec‐
7 tor map
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10 vector, geometry
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13 v.hull
14 v.hull help
15 v.hull [-a] input=string output=string [--overwrite]
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17 Flags:
18 -a Use all vector points (do not limit to current region)
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20 --overwrite
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22 Parameters:
23 input=string
24 name of a vector points map to be input
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26 output=string
27 name of a vector area map to be output
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30 v.hull computes the convex hull of a vector points map and outputs the
31 convex hull polygon as a vector area map. The convex hull, or convex
32 envelope, for an object or a set of objects is the minimal convex set
33 containing the given objects. This module creates a vector polygon con‐
34 taining all vector points of the input map.
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36 Example of v.hull output: | Convex hull polygon created with v.hull
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39 M. de Berg, M. van Kreveld, M. Overmars, O. Schwarzkopf, [4m(2000). Com‐
40 putational geometry, chapter 1.1, 2-8.
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43 v.delaunay
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46 Andrea Aime, Modena, Italy
47 Markus Neteler, ITC-irst (update to 5.7)
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49 Last changed: $Date: 2006/05/30 09:05:19 $
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51 Full index
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55GRASS 6.2.2 v.hull(1)