Use Convert () to convert quads to triangles in 2D (see Figure 8-35) and on boundaries in 3D. In 3D domains, you can also use the operation to convert hexahedra, prisms, and pyramids to tetrahedra.

To add a Convert node, select one or several entities in the mesh, then choose one of the following:

Enter the properties for the Convert node using the following sections:

First define the geometric entities where you want to convert the mesh elements. You choose the level of the geometry from the Geometric entity level list:

From the Element split method list, select Insert diagonal edges (the default setting) to split each quadrilateral element into two triangular elements and each hexahedral element into five tetrahedral elements, or select Insert centerpoints to split each quadrilateral element into four triangular elements and each hexahedral element into 28 tetrahedral elements. The conversion also affects quadrilateral elements on the boundaries of the specified domains in 3D.