Triangular mesh plot
h = trimesh(...)
trimesh(Tri,X,Y,Z,C) displays triangles defined in the m-by-3 face matrix Tri as a mesh. Each row of Tri defines a single triangular face by indexing into the vectors or matrices that contain the X, Y, and Z vertices. The edge color is defined by the vector C.
trimesh(Tri,X,Y) displays the triangles in a 2-D plot.
trimesh(TR) displays the triangles in a triangulation representation.
Create vertex vectors and a face matrix, and then create a triangular mesh plot.
[x,y]=meshgrid(1:15,1:15); tri = delaunay(x,y); z = peaks(15); trimesh(tri,x,y,z)
If the surface is already a triangulation representation, then you can pass the triangulation to trimesh:
tr = triangulation(tri,x(:),y(:),z(:)); trimesh(tr)