File: //opt/alt/python27/lib64/python2.7/site-packages/matplotlib/tri/triangulation.pyo
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An unstructured triangular grid consisting of npoints points and
ntri triangles. The triangles can either be specified by the user
or automatically generated using a Delaunay triangulation.
Read-only attributes:
*x*: array of shape (npoints).
x-coordinates of grid points.
*y*: array of shape (npoints).
y-coordinates of grid points.
*triangles*: integer array of shape (ntri,3).
For each triangle, the indices of the three points that make
up the triangle, ordered in an anticlockwise manner.
*mask*: optional boolean array of shape (ntri).
Which triangles are masked out.
*edges*: integer array of shape (?,2).
All edges of non-masked triangles. Each edge is the start
point index and end point index. Each edge (start,end and
end,start) appears only once.
*neighbors*: integer array of shape (ntri,3).
For each triangle, the indices of the three triangles that
share the same edges, or -1 if there is no such neighboring
triangle. neighbors[i,j] is the triangle that is the neighbor
to the edge from point index triangles[i,j] to point index
triangles[i,(j+1)%3].
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Create a Triangulation object.
The first two arguments must be:
*x*, *y*: arrays of shape (npoints).
Point coordinates.
Optional arguments (args or keyword args):
*triangles*: integer array of shape (ntri,3).
For each triangle, the indices of the three points that make
up the triangle. If the points are ordered in a clockwise
manner, they are converted to anticlockwise.
If not specified, matplotlib.delaunay is used to create a
Delaunay triangulation of the points.
*mask*: optional boolean array of shape (ntri).
Which triangles are masked out.
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Return the underlying C++ Triangulation object, creating it
if necessary.
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Return an array of triangles that are not masked.
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Return a Triangulation object from the args and kwargs, and
the remaining args and kwargs with the consumed values removed.
There are two alternatives: either the first argument is a
Triangulation object, in which case it is returned, or the args
and kwargs are sufficient to create a new Triangulation to
return. In the latter case, see Triangulation.__init__ for
the possible args and kwargs.
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Set or clear the mask array. This is either None, or a boolean
array of shape (ntri).
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