05ea032f3d
Make use of gmio_support for OpenCascade less error-prone and easier to maintain. Ugly const_cast<> have also been eradicated.
102 lines
3.2 KiB
C++
102 lines
3.2 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_meshvs.h>
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#include "stl_occ_utils.h"
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#include <MeshVS_DataSource.hxx>
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#include <TColStd_MapIteratorOfPackedMapOfInteger.hxx>
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#include <TColStd_PackedMapOfInteger.hxx>
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#include <cstddef>
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gmio_stl_mesh_occmeshvs::gmio_stl_mesh_occmeshvs()
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: m_data_src(NULL),
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m_element_coords(1, 1)
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{
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this->init_C_members();
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}
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gmio_stl_mesh_occmeshvs::gmio_stl_mesh_occmeshvs(const MeshVS_DataSource *ds)
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: m_data_src(ds),
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m_element_coords(1, 9)
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{
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this->init_C_members();
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this->init_cache();
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}
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gmio_stl_mesh_occmeshvs::gmio_stl_mesh_occmeshvs(const Handle_MeshVS_DataSource &hnd)
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: m_data_src(hnd.operator->()),
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m_element_coords(1, 9)
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{
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this->init_C_members();
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this->init_cache();
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}
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void gmio_stl_mesh_occmeshvs::init_C_members()
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{
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this->cookie = this;
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this->func_get_triangle = &gmio_stl_mesh_occmeshvs::get_triangle;
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this->triangle_count = 0;
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}
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void gmio_stl_mesh_occmeshvs::init_cache()
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{
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if (m_data_src == NULL)
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return;
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this->triangle_count = m_data_src->GetAllElements().Extent();
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m_vec_element_key.reserve(this->triangle_count);
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TColStd_MapIteratorOfPackedMapOfInteger element_it;
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element_it.Initialize(m_data_src->GetAllElements());
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while (element_it.More()) {
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m_vec_element_key.push_back(element_it.Key());
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element_it.Next();
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}
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}
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void gmio_stl_mesh_occmeshvs::get_triangle(
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const void *cookie, uint32_t tri_id, gmio_stl_triangle *tri)
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{
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const gmio_stl_mesh_occmeshvs* it =
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static_cast<const gmio_stl_mesh_occmeshvs*>(cookie);
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const MeshVS_DataSource* data_src = it->data_src();
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const int element_key = it->m_vec_element_key.at(tri_id);
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TColStd_Array1OfReal& element_coords = it->m_element_coords;
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int node_count;
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MeshVS_EntityType entity_type;
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const Standard_Boolean get_geom_ok =
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data_src->GetGeom(
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element_key,
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Standard_True, // Is element
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element_coords,
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node_count,
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entity_type);
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if (get_geom_ok && node_count == 3) {
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// Copy vertex coords
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const TColStd_Array1OfReal& in_coords_array = element_coords;
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float* out_coords_ptr = &tri->v1.x;
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for (int i = 0; i < 9; ++i)
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out_coords_ptr[i] = static_cast<float>(in_coords_array.Value(i + 1));
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// Copy normal coords
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double nx, ny, nz;
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data_src->GetNormal(element_key, 3, nx, ny, nz);
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gmio_stl_occ_copy_xyz(&tri->n, nx, ny, nz);
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}
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}
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