Empty Layers in 3D

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Empty Layers in 3D

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In three dimensional problems, it is sometimes necessary to define holes or excluded regions in the extruded domain.  This may be done using the VOID qualifier. VOID has the syntax of a parameter redefinition.

For example, the following descriptor fragment defines a 3-unit cube with a 1-unit cubical hole in the center:

EXTRUSION  Z=0,1,2,3

BOUNDARIES

REGION 1

START(0,0) LINE TO (3,0) TO (3,3) TO (3,0) TO CLOSE

REGION 2

LAYER 2 VOID

START(1,1) LINE TO (2,1) TO (2,2) TO (1,2) TO CLOSE

 

Examples:

Samples | Usage | 3D_Domains | 3D_Void.pde