Mesh

Synopsis

Defines the coordinate and structural information for a field.



Grid + Cells + Xform Mesh;

 

Description

Mesh is the blanket definition of all coordinate and structural mesh data in the Field data type. It is defined as the merge (V "+" operator) of the definitions of Grid and Cells. In object-oriented terminology, it uses multiple inheritance to acquire all of the characteristics of its specified types.

Subobjects

Grid
Cells

See references below.

Xform

A DefaultXform transformation matrix. Meshes contain coordinates of nodes. The coordinates extend from min_vec to max_vec in space.

But there is another set of data you could apply to the Mesh--how this Mesh is to be rotated, translated, and scaled in space when it is displayed in an output viewer. This is the function of Xform.

This is useful when the Meshes of different objects are being displayed together in a viewer window. The viewers use it to keep them in the correct orientation and scale with each other. For example, many modules will append the xform of their input Mesh to their output Mesh to keep the object at the same place in space.