The MESH_ISSOLID function computes various mesh properties and enables IDL to determine if a mesh encloses space (is a solid). If the mesh can be considered a solid, routines can compute the volume of the mesh.

Syntax

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Result = MESH_ISSOLID (Conn)

Return Value

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Returns 1 if the input mesh fully encloses space (assuming no polygonal interpenetration) or 0 otherwise. A mesh is defined to fully enclose space if each edge in the input mesh appears an even number of times in the mesh.

Note: The input polygonal mesh is assumed to contain only planar, convex polygons.

Arguments

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Conn

This is an integer or longword array that represents a series of polygon descriptions. Each polygon description takes the form [n, i₀, i₁, ..., i_n-1], where n is the number of vertices that define the polygon, and i₀...i_n-1 are indices into the vertex array.

Keywords

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None.

Version History

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5.5	Introduced

See Also

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MESH_CLIP, MESH_DECIMATE, MESH_MERGE, MESH_NUMTRIANGLES, MESH_OBJ, MESH_SMOOTH, MESH_SURFACEAREA, MESH_VALIDATE, MESH_VOLUME