Structure mesh: plot different regions with different colors

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Xiaohan Du
Xiaohan Du 2017-9-27
评论： Xiaohan Du 2017-9-28
Hi all,
I have a 2D mesh with different regions, like this:
I generated a mesh for this beam
Is there a way to highlight the 2 circles with different colors?
Many thanks!
  2 个评论
Xiaohan Du
Xiaohan Du 2017-9-28
Please see the .mat file for data. data.node is the nodal info, data.elem is connectivity, data.region1 is the coordinates for the left circular region, data.region2 is the coordinates for the right circular region. I'd like to use different color to denote these regions. Thank you!

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KSSV
KSSV 2017-9-28
load data.mat ;
tri = data.elem ;
coor = data.node ;
x = coor(:,1) ; y = coor(:,2) ; z = coor(:,3) ;
patch('faces',tri(:,2:4),'vertices',coor , ...
'facevertexcdata' , z, ...
'facecolor','interp', ...
'edgecolor','none') ;
hold on
c1 = data.region1 ;
c2 = data.region2 ;
patch(c1(:,1),c1(:,2),c1(:,3),'r')
patch(c2(:,1),c2(:,2),c2(:,3),'b')
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KSSV
KSSV 2017-9-28
编辑：KSSV 2017-9-28
tri = data.elem ;
coor = data.node ;
x = coor(:,1) ; y = coor(:,2) ; z = coor(:,3) ;
trisurf(tri(:,2:4),coor(:,2),coor(:,3),coor(:,3))
view(2) ;
c1 = data.region1 ;
c2 = data.region2 ;
ylim([-20 40])
patch(c1(:,2),c1(:,3),c1(:,3),'r')
patch(c2(:,2),c2(:,3),c2(:,3),'b')
It can be fine tuned to get all elements of circles and plot them in our own color....

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