Contour from mesh or grid

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Mortis
Mortis 2016-5-9
评论： Yamina chbak 2023-11-24
I'm doing some work using FEM (Finite Element Method) with triangular elements.
Questions will remain simple for those who have no clue what FEM is.
I got a m*2 matrix "Nodes" with x,y (for each point/node), a n*3 matrix "Elements" each line representing a triangle (element) referencing 3 points from previous matrix and finally i got a m*1 vector "U" that refers to z index of each node.
With "Nodes" and "Elements" i triplot the mesh, adding "U" i can trisurf it and i'd like to show that data with contour() too. But i get an error saying that Z must be a m*2. Any way arround this?
  2 个评论
KSSV
KSSV 2016-5-10
Attach the data in a mat file.....
Mortis
Mortis 2016-5-10
Data may vary in number depending on user input but its always stored in this matrices structure. WS.mat file attached to original post.
Thank you

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KSSV
KSSV 2016-5-11
  2 个评论
Mortis
Mortis 2016-5-11
I'll accept this answer as it pointed me in the right direction although the similar approach by Duane Hanselman is working better. At least for my data structure.
Thank you
Yamina chbak
Yamina chbak 2023-11-24
@KSSV If I have function z defined on quadrilateral element meshes, what I do ?. Thank you

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