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/*!
* \file mesh.h
*
* \author Copyright (C) 2018 by Bert Timmerman <bert.timmerman@xs4all.nl>.
*
* \brief Header file for a DXF mesh entity (\c MESH).
*
* \since The \c MESH entity was introduced in DXF R2011.
*
* <hr>
* <h1><b>Copyright Notices.</b></h1>\n
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License,
* or (at your option) any later version.\n\n
* This program is distributed in the hope that it will be useful, but
* <b>WITHOUT ANY WARRANTY</b>; without even the implied warranty of
* <b>MERCHANTABILITY</b> or <b>FITNESS FOR A PARTICULAR PURPOSE</b>.\n
* See the GNU General Public License for more details.\n\n
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to:\n
* Free Software Foundation, Inc.,\n
* 59 Temple Place,\n
* Suite 330,\n
* Boston,\n
* MA 02111 USA.\n
* \n
* Drawing eXchange Format (DXF) is a defacto industry standard for the
* exchange of drawing files between various Computer Aided Drafting
* programs.\n
* DXF is an industry standard designed by Autodesk(TM).\n
* For more details see http://www.autodesk.com.
* <hr>
*/
#ifndef LIBDXF_SRC_MESH_H
#define LIBDXF_SRC_MESH_H
#include "global.h"
#include "binary_graphics_data.h"
#include "point.h"
#ifdef __cplusplus
extern "C" {
#endif
/*!
* \brief DXF definition of an AutoCAD mesh entity (\c MESH).
*/
typedef struct
dxf_mesh_struct
{
/* Members common for all DXF drawable entities. */
int id_code;
/*!< Identification number for the entity.\n
* This is to be an unique (sequential) number in the DXF
* file.\n
* Group code = 5. */
char *linetype;
/*!< The linetype of the entity.\n
* Defaults to \c BYLAYER if ommitted in the DXF file.\n
* Group code = 6. */
char *layer;
/*!< Layer on which the entity is drawn.\n
* Defaults to layer "0" if no valid layername is given.\n
* Group code = 8. */
double elevation;
/*!< Elevation of the entity in the local Z-direction.\n
* Defaults to 0.0 if omitted in the DXF file, or prior
* to DXF version R12, or DXF_FLATLAND equals 0 (default).\n
* Group code = 38.\n
* \deprecated As of version R11. */
double thickness;
/*!< Thickness of the entity in the local Z-direction.\n
* Defaults to 0.0 if ommitted in the DXF file.\n
* Group code = 39. */
double linetype_scale;
/*!< Linetype scale (optional).\n
* Group code = 48.\n
* \since Introduced in version R13. */
int16_t visibility;
/*!< Object visibility (optional):\n
* <ol>
* <li value = "0"> Visible</li>
* <li value = "1"> Invisible</li>
* </ol>
* Group code = 60.\n
* \since Introduced in version R13. */
int color;
/*!< Color of the entity.\n
* Defaults to \c BYLAYER if ommitted in the DXF file.\n
* Note that entities encapsulated in a block with the
* color \c BYBLOCK are represented in the "native" color of
* the \c BLOCK entity.\n
* Group code = 62. */
int paperspace;
/*!< Entities are to be drawn on either \c PAPERSPACE or
* \c MODELSPACE.\n
* Optional, defaults to \c DXF_MODELSPACE (0).\n
* Group code = 67.\n
* \since Introduced in version R13. */
int graphics_data_size;
/*!< Number of bytes in the proxy entity graphics
* represented in the sub-sequent 310 groups, which are
* binary chunk records (optional).\n
* Group code = 92.\n
* \since Introduced in version R2000.\n
* \warning On some 64 bit workstations output is
* generated with group code "160", thus omitting group
* code "92". */
int16_t shadow_mode;
/*!< Shadow mode:\n
* <ol>
* <li value = "0"> Casts and receives shadows.</li>
* <li value = "1"> Casts shadows.</li>
* <li value = "2"> Receives shadows.</li>
* <li value = "3"> Ignores shadows.</li>
* </ol>\n
* Group code = 284.\n
* \since Introduced in version R2009. */
DxfBinaryGraphicsData *binary_graphics_data;
/*!< Proxy entity graphics data.\n
* Multiple lines of 256 characters maximum per line
* (optional).\n
* Group code = 310.\n
* \since Introduced in version R2000. */
char *dictionary_owner_soft;
/*!< Soft-pointer ID/handle to owner dictionary (optional).\n
* Group code = 330.\n
* \since Introduced in version R14. */
char *object_owner_soft;
/*!< Soft-pointer ID/handle to owner BLOCK_RECORD object.\n
* Group code = 330.\n
* \since Introduced in version R2000. */
char *material;
/*!< Hard-pointer ID/handle to material object (present if
* not BYLAYER).\n
* Group code = 347.\n
* \since Introduced in version R2008. */
char *dictionary_owner_hard;
/*!< Hard owner ID/handle to owner dictionary (optional).\n
* Group code = 360.\n
* \since Introduced in version R14. */
int16_t lineweight;
/*!< Lineweight enum value.\n
* Stored and moved around as a 16-bit integer.\n
* Group code = 370.\n
* \since Introduced in version R2002. */
char *plot_style_name;
/*!< Hard pointer ID / handle of PlotStyleName object.\n
* Group code = 390.\n
* \since Introduced in version R2009. */
long color_value;
/*!< A 24-bit color value that should be dealt with in
* terms of bytes with values of 0 to 255.\n
* The lowest byte is the blue value, the middle byte is
* the green value, and the third byte is the red value.\n
* The top byte is always 0.\n
* The group code cannot be used by custom entities for
* their own data because the group code is reserved for
* AcDbEntity, class-level color data and AcDbEntity,
* class-level transparency data.\n
* Group code = 420.\n
* \since Introduced in version R2004. */
char *color_name;
/*!< Color name.\n
* The group code cannot be used by custom entities for
* their own data because the group code is reserved for
* AcDbEntity, class-level color data and AcDbEntity,
* class-level transparency data.\n
* Group code = 430.\n
* \since Introduced in version R2004. */
long transparency;
/*!< Transparency value.\n
* The group code cannot be used by custom entities for
* their own data because the group code is reserved for
* AcDbEntity, class-level color data and AcDbEntity,
* class-level transparency data.\n
* Group code = 440.\n
* \since Introduced in version R2004. */
/* Specific members for a DXF mesh. */
DxfPoint *p0;
/*!< Vertex position.\n
* Group codes = 10, 20 and 30.*/
int16_t version;
/*!< Version number.\n
* Group code = 71. */
int16_t blend_crease_property;
/*!< "Blend Crease" property:
* <ol>
* <li value=0>Turn off.</li>
* <li value=1>Turn on.</li>
* </ol>
* Group code = 72. */
int32_t face_list_item;
/*!< Face list item.\n
* Group code = 90. */
int32_t edge_vertex_index;
/*!< Vertex index of each edge (multiple entries ?).\n
* Group code = 90.
* \todo Solve multiple group code issue. */
int32_t number_of_property_overridden_sub_entities;
/*!< Count of sub-entity which property has been
* overridden.\n
* Group code = 90.
* \todo Solve multiple group code issue. */
int32_t property_type;
/*!< Property type:
* <ol>
* <li value=0>Color.</li>
* <li value=1>Material.</li>
* <li value=2>Transparency.</li>
* <li value=3>Material mapper.</li>
* </ol>
* Group code = 90.
* \todo Solve multiple group code issue. */
int32_t subdivision_level;
/*!< Number of subdivision level.\n
* Group code = 91. */
int32_t sub_entity_marker;
/*!< Sub-entity marker.\n
* Group code = 91.
* \todo Solve multiple group code issue. */
int32_t vertex_count_level_0;
/*!< Vertex count of level 0.\n
* Group code = 92. */
int32_t count_of_property_overridden;
/*!< Count of property was overridden.\n
* Group code = 92.
* \todo Solve multiple group code issue. */
int32_t face_list_size_level_0;
/*!< Size of face list of level 0.\n
* Group code = 93. */
int32_t edge_count_level_0;
/*!< Edge count of level 0.\n
* Group code = 94. */
int32_t edge_crease_count_level_0;
/*!< Edge crease count of level 0.\n
* Group code = 95. */
double edge_create_value;
/*!< Edge create value.\n
* Group code = 140. */
struct DxfMesh *next;
/*!< Pointer to the next DxfMesh.\n
* \c NULL in the last DxfMesh. */
} DxfMesh;
DxfMesh *dxf_mesh_new ();
DxfMesh *dxf_mesh_init (DxfMesh *mesh);
int dxf_mesh_free (DxfMesh *mesh);
void dxf_mesh_free_list (DxfMesh *meshes);
int dxf_mesh_get_id_code (DxfMesh *mesh);
DxfMesh *dxf_mesh_set_id_code (DxfMesh *mesh, int id_code);
#ifdef __cplusplus
}
#endif
#endif /* LIBDXF_SRC_MESH_H */
/* EOF */
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