`trimesh`

Plots a triangular mesh as wireframe edges.

Category: Mathematics > Computational Geometry

Syntax

trimesh(T, x, y, z)

Draws the triangles listed in T as a 3-D mesh, with vertex coordinates x, y and heights z.

trimesh(T, x, y)

Draws the triangles in the plane.

trimesh(TR)

Draws the mesh of a triangulation object.

h = trimesh(___)

Also returns the handle of the mesh.

Description

trimesh draws only the edges of each triangle, with the faces left transparent, which makes it a quick way to inspect a mesh. For shaded faces, use trisurf. For a flat 2-D mesh, triplot is the usual choice.

When z is given, the vertices are lifted to those heights and the axes switch to a 3-D view.

Input arguments

T: m-by-3 matrix; each row holds three vertex indices.
x, y, z: Vectors with the coordinates of the vertices.

Output arguments

h: Handle to the patch object that draws the mesh.

Example

A mesh lifted into 3-D

x = [0 1 0 1]';
y = [0 0 1 1]';
z = [0 1 1 2]';
T = [1 2 3; 2 4 3];
trimesh(T, x, y, z);

trimesh