For an overview, see Primitives and Attributes.
The edge attributes include:
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Edge Bundle Table RA Edge Bundle Table (LUT) and
Edge Bundle Table (Renderer)
Surface Edge Bundle Index OC PEXOCCSetEdgeBundleIndex
Surface Edge Color OC (ASF) PEXOCCSetSurfaceEdgeColor
Surface Edge Color Index OC (ASF) PEXOCCSetSurfaceEdgeColorIndex
Surface Edge Flag OC (ASF) PEXOCCSetSurfaceEdgeFlag
Surface Edge Type OC (ASF) PEXOCCSetSurfaceEdgeType
Surface Edge Width OC (ASF) PEXOCCSetSurfaceEdgeWidth
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The PEXlib primitives affected by the above edge attributes include:
--------------------------------------------------------------------------------------------- Arc Areas PEXOCCArcAreas Fill Area Set PEXOCCFillAreaSet Indexed Fill Area Sets PEXOCCIndexedFillAreaSets Indexed Triangles PEXOCCIndexedTriangles Non-uniform B-spline Surface PEXOCCNURBSurface PolyTriangle PEXOCCPolyTriangle Quadrilateral Mesh PEXOCCQuadrilateralMesh Triangle Fan PEXOCCTriangleFan Triangles PEXOCCTriangles Triangle Strip PEXOCCTriangleStrip ---------------------------------------------------------------------------------------------
See the sections referenced above for information about each of the primitives and the edge attributes that affect them.