vtk.femgrid

Visualize FEM unstructured grid

Syntax

vtk.femgrid(nodes, elements, elementTypes)
vtk.femgrid(nodes, elements, elementTypes, scalars)

Description

Creates a VTK unstructured grid visualization for finite element meshes. Nodes is an Nx3 matrix of coordinates. Elements defines cell connectivity. ElementTypes specifies VTK cell types (10=tetra, 12=hex, 5=tri, 9=quad).

Parameters

Name	Description
nodes	Nx3 matrix of node coordinates
elements	Cell connectivity in VTK format [npts, n1, n2, ...]
elementTypes	Array of VTK cell type codes for each element
scalars(optional)	Per-node or per-cell scalar field (e.g., stress, temperature)

Returns

null (renders FEM mesh inline)

Examples

Try It

>> % Create a simple tetrahedral mesh
nodes = [0 0 0; 1 0 0; 0.5 1 0; 0.5 0.5 1];
elements = [4 0 1 2 3];  % one tetrahedron
types = [10];  % VTK_TETRA
vtk.femgrid(nodes, elements, types)

Equana