anyway to color 2D triangular plot with "CData"

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Yu Li
Yu Li 2020-12-13
评论： KSSV 2020-12-14
Hi:
I have a 2D triangulation data including vertices and connectivity, I want to color it with the value at its geometry center. I tried to add a "CData" but it is not recognized by "triplot" function:
Tri=triplot(DT.ConnectivityList,DT.Points(:,1),DT.Points(:,2),'CData',cm);
where DT is the triangulation objective, and cm is the color at each triangle center.
is there anyway in Matlab can do this?
Thanks!
Yu

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回答（1 个）

KSSV
KSSV 2020-12-13
编辑：KSSV 2020-12-13
Read about trisurf. Also have a look on patch. You can use any of the two to achieve what you want.
  2 个评论
Yu Li
Yu Li 2020-12-13
Hi:
thanks for your reply.
"patch" seems works but by assigning "FaceVertexCData", but "trisurf" not.
I tried to use command:
Tri=trisurf(DT,DT.Points(:,1),DT.Points(:,2));
and below is the error messange:
Error using trisurf (line 65)
The triangulation must reside in 3D space.
do you have any further suggestions?
Thanks!
Yu
KSSV
KSSV 2020-12-14
Tri=trisurf(DT.ConnectivityList,DT.Points(:,1),DT.Points(:,2),cm);
I am assuming that cm is a column array with same number of rows present in Dt.Points.

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