convhull - Convex hull
Syntax
K = convhull(x,y)
[K,a] = convhull(...)
Description
K = convhull(x,y) returns
indices into the x and y vectors
of the points on the convex hull.
K = convhull(x,y,options) specifies a cell
array of strings options that were previously used by Qhull. Qhull-specific
options are no longer required and are currently ignored.
[K,a] = convhull(...) also
returns the area of the convex hull.
convhull uses CGAL, see http://www.cgal.org.
Visualization
Use plot to plot the
output of convhull.
Examples
Example 1
xx = -1:.05:1; yy = abs(sqrt(xx));
[x,y] = pol2cart(xx,yy);
k = convhull(x,y);
plot(x(k),y(k),'r-',x,y,'b+')
See Also
DelaunayTri/convexHull, DelaunayTri/voronoiDiagram, convhulln, delaunay, polyarea, voronoi
 | conv2 | | convhulln |  |
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