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occt/src/StlTransfer/StlTransfer.cdl
akz b9c1e44004 0025357: STL writer does not check the given shape for existing triangulation and remeshes shape using BRepMesh in force mode.
StlTransfer.cxx, function StlTransfer::BuildIncrementalMesh(...) fills the StlMesh_Mesh. Before this fix the StlTransfer always force meshing of the passed shape.

Now meshing is completely removed from the StlTransfer. StlWriter can return error status now, for example, if a mesh of the passed shape is empty. In this case file will be not created.

Added test case bugs/xde/bug25357

Avoid the warning on gcc compiler.
Test scripts were modified according to the fix.
     1) bug23192, bug22670, bug23193: removed "isParallel" flag from the command
         arguments. Manually meshing of the shape (as far as meshing was removed
         from STL writer).
     2) bug22898: before the fix writestl always remeshes the shape with a
         deflection, related to the boundery box of the shape. For "hammer" shape
         there is a 38.9076 deflection for mesh. Differences between before writing
         and after reading are dedicated to fact that stl writes triangulation as
         an elements of the spahe (like faces, edges etc.)
2015-02-05 14:40:24 +03:00

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-- Created on: 1994-11-14
-- Created by: Jean Claude VAUTHIER
-- Copyright (c) 1994-1999 Matra Datavision
-- Copyright (c) 1999-2014 OPEN CASCADE SAS
--
-- This file is part of Open CASCADE Technology software library.
--
-- This library is free software; you can redistribute it and/or modify it under
-- the terms of the GNU Lesser General Public License version 2.1 as published
-- by the Free Software Foundation, with special exception defined in the file
-- OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
-- distribution for complete text of the license and disclaimer of any warranty.
--
-- Alternatively, this file may be used under the terms of Open CASCADE
-- commercial license or contractual agreement.
package StlTransfer
---Purpose: The package Algorithm for Meshing implements
-- facilities to retrieve the Mesh data-structure from a shape of package
-- TopoDS. The triangulation should be computed before.
-- The result is stored in the mesh
-- data-structure Mesh from package StlMesh.
--
uses
StlMesh,
TopoDS
is
RetrieveMesh (Shape : in Shape from TopoDS;
Mesh : Mesh from StlMesh);
---Purpose: Retrieve a Mesh data-structure from the Shape, convert and store it into the Mesh.
end StlTransfer;