Geometry Objects

The Geometry Data consist of four objects, shown below along with the header files in which the objects are declared. The toplevel definition of the Geometry is in dataset.h

• Points point.h
• Edges edge.h
• Regions region.h
• Boundaries boundary.h

The Geometry Objects are created when the input file is read by calling the following IPlotDataSet functions.

• CreateGeomPointList( numpoints );
• CreateGeomEdgeList( numedges );
• CreateGeomBoundaryList( numboundaries );
• CreateGeomRegionList( numregions );

The above functions allocate space for the various lists. The lists are then filled in with data from input file by the following functions.

• FillGeomPointList( pi, pj );
• FillGeomEdgeList( edge );
• FillGeomBoundaryList( boundary, boundarynoofedges );
• FillGeomRegionList( region, regionnoofboundaries, regiontype );

The Point List and Edge List functions basically just dump the data straight in. The Boundary List function creates room for a list of Edge Pointers and then fills them in with pointers to the edges made above.

The Region List function looks up and sets the proper color for a region, extracts a smaller name from the given name, sets the region type and finally creates space for a list of Boundary Pointers and fills it in with the a pointer to the appropriate Boundary made above

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