106 lines
3.2 KiB
C
106 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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/*! \file stl_mesh_creator.h
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* Declaration of gmio_stl_mesh_creator
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*
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* \addtogroup gmio_stl
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* @{
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*/
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#ifndef GMIO_STL_MESH_CREATOR_H
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#define GMIO_STL_MESH_CREATOR_H
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#include "stl_global.h"
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#include "stl_format.h"
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#include "stl_triangle.h"
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#include "stlb_header.h"
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#include "../gmio_core/stream.h"
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#include <stddef.h>
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/*! Informations about the STL stream, used in
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* gmio_stl_mesh_creator::begin_solid() */
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struct gmio_stl_mesh_creator_infos
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{
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/*! Format of the input STL mesh */
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enum gmio_stl_format format;
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/*! Null terminated C-string holding the STL mesh(solid) name
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*
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* Available only if STL ASCII format, \c NULL otherwise
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*/
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const char* stla_solid_name;
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/*! Total size (in bytes) of the input stream
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*
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* This is the result of gmio_stl_read_options::func_stla_get_streamsize()
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*
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* Useful to roughly estimate the facet count in the input mesh.
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* Available only if STL ASCII format, \c 0 otherwise
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*/
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gmio_streamsize_t stla_stream_size;
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/*! Contains the header data(80 bytes)
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*
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* Available only if binary STL, \c NULL otherwise
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*/
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const struct gmio_stlb_header* stlb_header;
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/*! Count of mesh facets(triangles)
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*
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* Available only if binary STL, \c 0 otherwise
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*/
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uint32_t stlb_triangle_count;
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};
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/*! Provides an interface for the creation of the underlying(hidden)
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* user mesh */
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struct gmio_stl_mesh_creator
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{
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/*! Opaque pointer on the user mesh, passed as first argument to hook
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* functions */
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void* cookie;
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/* All function pointers are optional (ie can be set to NULL) */
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/*! Optional pointer on a function that handles declaration of a solid */
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void (*func_begin_solid)(
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void* cookie, const struct gmio_stl_mesh_creator_infos* infos);
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/*! Pointer on a function that adds a triangle to the user mesh
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*
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* The argument \p triangle is the triangle to be added, note that
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* struct gmio_stl_triangle::attribute_byte_count is meaningless for STL
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* ascii.
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*
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* The argument \p tri_id is the index of the mesh triangle
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*/
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void (*func_add_triangle)(
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void* cookie,
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uint32_t tri_id,
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const struct gmio_stl_triangle* triangle);
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/*! Pointer on a function that finalizes creation of the user mesh
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*
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* Optional function called at the end of the read process, ie. after all
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* triangles have been added
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*/
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void (*func_end_solid)(void* cookie);
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};
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#endif /* GMIO_STL_MESH_CREATOR_H */
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/*! @} */
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