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IndexE3d_PolygonFlatten E3d_PolygonFlattenScaled E3d_PolygonTriangulate E3d_PolygonTestTriangulate E3d_PolygonFlattenRotate a Polygon, so it's aligned with the X-Y planeSyntax E3d2DPosition* E3d_PolygonFlatten(E3dPolygon* LPolygon, unsigned int LVertexNodeSize, E3dVertex* LVertices)Arguments E3dPolygon* LPolygon Pointer to the Polygon E3dVertex* LVertices The Vertex array of the Mesh containing this PolygonDescription Aligns the Polygon with the X-Y plane, making it a 2D Polygon. This is useful for many Polygon operations, such as determining Edge intersections, triangulating etc. Return value Pointer to an array of 2DPositions, corresponding to each VertexNode of the Polygon, or NULL in case of an error. This array must be freed by the caller when not used any more See also E3d_PolygonFlattenScaled() E3d_PolygonFlattenScaledScale and rotate a Polygon, so it's aligned with the X-Y planeSyntax E3d2DPosition* E3d_PolygonFlattenScaled(E3dPolygon* LPolygon, unsigned int LVertexNodeSize, E3dVertex* LVertices, E3dCoordinate LScale)Arguments E3dPolygon* LPolygon Pointer to the Polygon E3dVertex* LVertices The Vertex array of the Mesh containing this Polygon E3dCoordinate LScale Scaling factorDescription Aligns the Polygon with the X-Y plane, making it a 2D Polygon. Before being rotated, the Polygon will be uniformly scaled around its center by LScale. Return value Pointer to an array of 2DPositions, corresponding to each VertexNode of the Polygon, or NULL in case of an error. This array must be freed by the caller when not used any more See also E3d_PolygonFlatten() E3d_PolygonTriangulateTriangulate a PolygonSyntax int E3d_PolygonTriangulate(E3dPolygon* LPolygon, unsigned int LVertexNodeSize, E3dVertex* LVertices, EBool LDoConvex)Arguments E3dVertex* LVertices The array of vertices this Polygon is indexing in its VertexNodes E3dPolygon* LPolygon Pointer to the E3dPolygon structure EBool LDoConvex Should we try to triangulate convex Polys or just concave onesDescription Triangulates a Polygon and stores the resulting triangles in the Polygon structure. The Polygon's normal must be correct before calling this function. Return value The number of resulting triangles, or 0 if the triangulation was unsuccessful. See also E3d_TestTriangulatePolygon, E3d_PolygonTriangulateForRendering, E3d_PolygonUpdateNormal, E3dM_PolygonUpdateNormal E3d_PolygonTestTriangulateTest-triangulate a PolygonSyntax int E3d_PolygonTestTriangulate(E3dPolygon* LPolygon, unsigned int LVertexNodeSize, E3dVertex* LVertices, EBool LDoConvex)Arguments E3dVertex* LVertices The array of Vertices this Polygon is indexing in its VertexNodes E3dPolygon* LPolygon Pointer to the E3dPolygon structure EBool LDoConvex Should we try to triangulate convex Polys or just concave onesDescription Triangulates a Polygon, but it doesn't store the resulting triangles in Polygon structure. This function can be useful to determine whether a Polygon can be triangulated (if not, it is usually considered "degenerate" and could be thrown out, ignored etc.) Return value The number of resulting triangles, or 0 if the triangulation was unsuccessful. See also E3d_PolygonTriangulate, E3d_PolygonTriangulateForRendering |