I have some data to plot in 2D contour mode with matlab and it seems to be a little tricky to plot. I have a 2D unstructured triangular mesh with x and y coordinates of centers of triangles and and lets say velocity and these centers of triangle;
x(:)=[x(1), x(2), ..., x(N)]
y(:)=[y(1), y(2), ..., y(N)]
u(:)=[u(1), u(2), ..., u(N)]
The first picture below is the original meshgrid with the coordinates of vertices rather than the coordinates of centers of cells which what I want to useoriginal mesh using vertices coordinates
And with my try using Delaunay triangulation, I obtained this meshgrid meshgrid I obtained
clearly, It's very different and at the boundary is badly triangulated boundary problem and also boundary problem 2
