91 lines
3.1 KiB
C++
91 lines
3.1 KiB
C++
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/****************************************************************************
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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_PackedMapOfInteger.hxx>
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namespace internal {
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static void occmesh_datasource_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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void* wcookie = const_cast<void*>(cookie);
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gmio_stl_occmesh_datasource_iterator* it =
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static_cast<gmio_stl_occmesh_datasource_iterator*>(wcookie);
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const MeshVS_DataSource* data_src = it->data_src();
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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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it->current_element_key(),
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Standard_True, // Is element
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it->cached_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 = it->cached_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(it->current_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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it->move_to_next_tri();
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}
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} // namespace internal
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gmio_stl_mesh gmio_stl_occmesh(const gmio_stl_occmesh_datasource_iterator& it)
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{
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gmio_stl_mesh mesh = {};
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mesh.cookie = ⁢
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mesh.triangle_count =
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it.data_src() != NULL ?
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it.data_src()->GetAllElements().Extent() : 0;
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mesh.func_get_triangle = internal::occmesh_datasource_get_triangle;
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return mesh;
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}
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gmio_stl_occmesh_datasource_iterator::gmio_stl_occmesh_datasource_iterator()
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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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gmio_stl_occmesh_datasource_iterator::gmio_stl_occmesh_datasource_iterator(
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const MeshVS_DataSource *data_src)
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: m_data_src(data_src),
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m_element_coords(1, 9)
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{
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if (m_data_src != NULL)
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m_element_it.Initialize(m_data_src->GetAllElements());
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}
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gmio_stl_occmesh_datasource_iterator::gmio_stl_occmesh_datasource_iterator(
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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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if (m_data_src != NULL)
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m_element_it.Initialize(m_data_src->GetAllElements());
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}
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