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File: [local] / OpenXM_contrib / PHC / Ada / Root_Counts / Dynlift / triangulations_and_subdivisions.ads (download)
Revision 1.1.1.1 (vendor branch), Sun Oct 29 17:45:28 2000 UTC (23 years, 10 months ago) by maekawa
Import the second public release of PHCpack. OKed by Jan Verschelde. |
with Standard_Integer_Vectors; use Standard_Integer_Vectors; with Simplices,Triangulations; use Simplices,Triangulations; with Integer_Mixed_Subdivisions; use Integer_Mixed_Subdivisions; package Triangulations_and_Subdivisions is -- DESCRIPTION : -- This package offers conversion operations from triangulations -- into mixed subdivisions and vice versa. function Deep_Create ( n : natural; s : Simplex ) return Mixed_Cell; function Shallow_Create ( n : natural; s : Simplex ) return Mixed_Cell; -- DESCRIPTION : -- Creates a mixed cell from the given simplex. A deep create makes -- a copy of the points in the simplex, whereas a shallow create only -- copies the points to the points in the simplex. function Deep_Create ( n : natural; t : Triangulation ) return Mixed_Subdivision; function Shallow_Create ( n : natural; t : Triangulation ) return Mixed_Subdivision; -- DESCRIPTION : -- Creates a mixed subdivision from a given triangulation. function Deep_Create ( n : natural; flatnor : Vector; t : Triangulation ) return Mixed_Subdivision; function Shallow_Create ( n : natural; flatnor : Vector; t : Triangulation ) return Mixed_Subdivision; -- DESCRIPTION : -- Stops the conversion as soon as the flattening normal is encountered. -- Cells with the same inner normal are merged. function Non_Flat_Deep_Create ( n : natural; t : Triangulation ) return Mixed_Subdivision; function Non_Flat_Shallow_Create ( n : natural; t : Triangulation ) return Mixed_Subdivision; -- DESCRIPTION : -- Converts only the cells in the triangulation that are not flat. function Deep_Create ( n : natural; mixsub : Mixed_Subdivision ) return Triangulation; function Shallow_Create ( n : natural; mixsub : Mixed_Subdivision ) return Triangulation; -- DESCRIPTION : -- Creates a triangulation from the mixed subdivision. -- REQUIRED : -- The subdivision must be a triangulation! end Triangulations_and_Subdivisions;