131 lines
4.1 KiB
C++
131 lines
4.1 KiB
C++
/****************************************************************************
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** gmio
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** Copyright Fougue (2 Mar. 2015)
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** contact@fougue.pro
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**
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** This software is a reusable library whose purpose is to provide complete
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** I/O support for various CAD file formats (eg. STL)
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**
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** This software is governed by the CeCILL-B license under French law and
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** abiding by the rules of distribution of free software. You can use,
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** modify and/ or redistribute the software under the terms of the CeCILL-B
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** license as circulated by CEA, CNRS and INRIA at the following URL
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** "http://www.cecill.info/licences/Licence_CeCILL-B_V1-en.html".
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****************************************************************************/
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#include <gmio_support/stl_occ.h>
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#include <cstring>
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#include <StlMesh_Mesh.hxx>
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#include <StlMesh_MeshTriangle.hxx>
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#include <StlMesh_SequenceOfMeshTriangle.hxx>
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#include <TColgp_SequenceOfXYZ.hxx>
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namespace internal {
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/* Common */
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static StlMesh_Mesh* occMeshPtr(const Handle_StlMesh_Mesh& mesh)
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{
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return mesh.operator->();
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}
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static void occmesh_add_triangle(void* cookie,
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uint32_t tri_id,
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const gmio_stl_triangle_t* tri)
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{
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StlMesh_Mesh* mesh = static_cast<StlMesh_Mesh*>(cookie);
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if (tri_id == 0)
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mesh->AddDomain();
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mesh->AddTriangle(mesh->AddOnlyNewVertex(tri->v1.x, tri->v1.y, tri->v1.z),
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mesh->AddOnlyNewVertex(tri->v2.x, tri->v2.y, tri->v2.z),
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mesh->AddOnlyNewVertex(tri->v3.x, tri->v3.y, tri->v3.z),
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tri->normal.x, tri->normal.y, tri->normal.z);
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}
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static void occmesh_get_triangle(
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const void* cookie, uint32_t tri_id, gmio_stl_triangle_t* triangle)
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{
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const gmio_occ_stl_mesh_domain_t* mesh_domain =
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static_cast<const gmio_occ_stl_mesh_domain_t*>(cookie);
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const StlMesh_SequenceOfMeshTriangle& occTriangles =
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mesh_domain->mesh->Triangles(mesh_domain->domain_id);
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const Handle_StlMesh_MeshTriangle& occTri =
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occTriangles.Value(tri_id + 1);
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int v1;
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int v2;
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int v3;
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double xN;
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double yN;
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double zN;
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occTri->GetVertexAndOrientation(v1, v2, v3, xN, yN, zN);
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triangle->normal.x = float(xN);
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triangle->normal.y = float(yN);
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triangle->normal.z = float(zN);
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const TColgp_SequenceOfXYZ& vertices =
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mesh_domain->mesh->Vertices(mesh_domain->domain_id);
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const gp_XYZ& coordsV1 = vertices.Value(v1);
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const gp_XYZ& coordsV2 = vertices.Value(v2);
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const gp_XYZ& coordsV3 = vertices.Value(v3);
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triangle->v1.x = float(coordsV1.X());
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triangle->v2.x = float(coordsV2.X());
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triangle->v3.x = float(coordsV3.X());
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triangle->v1.y = float(coordsV1.Y());
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triangle->v2.y = float(coordsV2.Y());
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triangle->v3.y = float(coordsV3.Y());
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triangle->v1.z = float(coordsV1.Z());
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triangle->v2.z = float(coordsV2.Z());
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triangle->v3.z = float(coordsV3.Z());
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}
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} // namespace internal
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gmio_stl_mesh_t gmio_stl_occmesh(const gmio_occ_stl_mesh_domain_t* mesh_domain)
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{
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gmio_stl_mesh_t mesh = { 0 };
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mesh.cookie = mesh_domain;
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if (mesh_domain != NULL && mesh_domain->mesh != NULL) {
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mesh.triangle_count =
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mesh_domain->mesh->NbTriangles(mesh_domain->domain_id);
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}
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mesh.func_get_triangle = internal::occmesh_get_triangle;
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return mesh;
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}
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gmio_stl_mesh_creator_t gmio_stl_occmesh_creator(StlMesh_Mesh* mesh)
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{
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gmio_stl_mesh_creator_t creator = { 0 };
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creator.cookie = mesh;
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creator.func_add_triangle = internal::occmesh_add_triangle;
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return creator;
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}
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gmio_stl_mesh_creator_t gmio_stl_hnd_occmesh_creator(const Handle_StlMesh_Mesh &hnd)
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{
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return gmio_stl_occmesh_creator(internal::occMeshPtr(hnd));
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}
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gmio_occ_stl_mesh_domain::gmio_occ_stl_mesh_domain()
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: mesh(NULL),
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domain_id(0)
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{
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}
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gmio_occ_stl_mesh_domain::gmio_occ_stl_mesh_domain(
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const StlMesh_Mesh *msh, int dom_id)
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: mesh(msh),
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domain_id(dom_id)
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{
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}
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gmio_occ_stl_mesh_domain::gmio_occ_stl_mesh_domain(
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const Handle_StlMesh_Mesh &hndMesh, int dom_id)
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: mesh(internal::occMeshPtr(hndMesh)),
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domain_id(dom_id)
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{
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}
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