CAMpolygonEntity

Include file: campoly.h

A CAMpolygonEntity instance is a closed polygon whose boundary is parameterized by arc-length. The indexing for the vertices starts at 1 and the indexing of the sides starts at 1.

Constructors
Inherited member functions (from base class)
Entity specific member functions:

double getVertexCoordinate ( long vertexIndex )

long getSegmentIndex ( double s )

double getGlobalParametricCoord (double s, long segIndex )

Chris Anderson © UCLA 6/27/97

Constructors

Creates a CAMpolygonEntity instance of Nsides whose vertices are the points (xVertex[i], yVertex[i]) for i = 1 to Nsides.

Entity Specific Member Functions

This routine returns the parametric coordinate of the vertex with index vertexIndex. The indexing of the vertices starts at 1.

This routine Computes the index of the segment (or side) containing the point whose parametric coordinate is s.

This routine transforms the local parametric s coordinate (a value in [0,1]) for the side segment with index segIndex into the parametric coordinate for the complete polygon.