trimesh (2024)

Syntax

h = trimesh(tri, x, y, z)

h = trimesh(tri, x, y, cdata)

h = trimesh(tri, x, y)

h = trimesh(..., property, value, ...)

h = trimesh(hAxes, ...)

Inputs

tri

An Mx3 matrix, where M is the number of triangles. Each row contains the indices of a triangle in the x, y and z matrices. Usually, tri is the output of the delaunay function.

Type: integer

Dimension: vector | matrix

x, y, z

Coordinates of the vertices.

Type: double | integer

Dimension: vector | matrix

cdata

Color data for each vertex or triangle. cdata can be:

1. a vector that contains a scalar value for each vertex
2. a vector that contains a scalar value for each triangle
3. an Mx3 matrix that contains an rgb color for each triangle

Type: double | integer

Dimension: vector | matrix

property

Properties that control the appearance or behavior of the graphics object.

Type: string

Dimension: scalar

value

Value of the properties.

Type: double | integer | string

Dimension: scalar | vector

hAxes

Axis handle.

Type: double

Dimension: scalar

Outputs

h

Handle of the trimesh graphics object.

Examples

Simple trimesh example:

See Also

Defining complex geometries using trimesh Flexcompute

[x, y] = meshgrid([0:0.2:2]);z = sin(x)'*cos(y);tri = delaunay (x(:), y(:));figure;h = trimesh(tri, x, y, z);

Set trimesh edgecolor:

[x, y] = meshgrid([0:0.4:2*pi]);z=sin(x')*cos(x);tri = delaunay (x(:), y(:));figure;h = trimesh(tri, x, y, z);set(h,'edgecolor','r')

Set cdata per vertex:

[x, y] = meshgrid([0:0.2:2]);z = sin(x)'*cos(y);tri = delaunay (x(:), y(:));figure;% cdata is a scalar per vertexcdata = x(:);h = trimesh(tri, x, y, z, cdata);figure;h = trimesh(tri, x, y, z, cdata);% the edge color is interpolatedset(h, 'edgecolor','interp');

Set cdata per triangle:

[x, y] = meshgrid([0:0.5:2]);z = cos(y)'*sin(x);tri = delaunay (x(:), y(:));figure;% cdata is a scalar per trianglecdata = 1:size(tri)(1);h = trimesh(tri, x, y, z, cdata);colormap(jet(12))colorbar;figure;% cdata is an rgb color per trianglecdata = plasma(size(tri)(1));h = trimesh(tri, x, y, z, cdata);

Comments

If there are no axes, they will be created first.

If z is omitted, a triplot will be created instead.