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GraphicsComplex—Wolfram Language Documentation

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• See Also
  • GraphicsGroup
  • Plot3D
• Related Guides
  • Symbolic Graphics Language
  • 3D Geometry & Modeling Formats
  • Combining Graphics
  • Graphics Objects
  • Polygons
  • Polyhedra

GraphicsComplex[{pt₁,pt₂,…},data]

represents a graphics complex in which coordinates given as integers i in graphics primitives in data are taken to be pt_i.

• GraphicsComplex works in both 2D and 3D.
• GraphicsComplex[{pt₁,pt₂,…},data] effectively replaces integers i that appear as coordinates in data by the corresponding pt_i.
• GraphicsComplex provides a convenient way to build up meshes or simplicial complexes in which vertices of polygons are shared.
• GraphicsComplex is treated like a single primitive in Graphics and Graphics3D.
• In GraphicsComplex[pts,data], data can be any nested list of graphics primitives and directives.
• The following options can be given:
• GraphicsComplex[{pt₁,pt₂,…},data,VertexColors->{c₁,c₂,…}] replaces Polygon[{i,j,…}] by Polygon[{pt_i,pt_j,…},VertexColors->{c_i,c_j,…}].
• The VertexNormals and VertexTextureCoordinates option works the same way.
• Normal[GraphicsComplex[pts,data]] substitutes coordinates to give an ordinary list of graphics primitives and directives.

No individual object is selectable; the graphics complex appears as one object:

Allow the individual objects in the graphics complex to be selectable by a single click:

The first click selects the whole complex, and subsequent clicks select individual objects:

Specify colors for each vertex:

Specify vertex colors for 3D polygons:

Define vertices and face indices of a cylindrical model:

Without surface normals, the shading is constant or flat for each polygon face:

With surface normals, the shading is interpolated or smooth across each polygon face:

Texture mapping with 2D polygons:

Texture mapping with 3D polygons:

Most surface and region plots produce GraphicsComplex:

You can use GraphicsComplex to transform the coordinates in this simple rotation:

The same idea applies to 3D surfaces:

Set up a graphics complex with shared coordinates:

Applying Normal will split a complex into primitives with duplicated coordinates:

Both forms produce the same image:

Graphics complexes can be built up from integrated PolyhedronData:

Or, get a graphics complex directly:

ExampleData contains a number of 3D graphics complex models:

Many Import formats produce GraphicsComplex:

In this case the surface has about 35000 vertices:

A random selection of index coordinates:

Cows with random gradients:

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