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/*
* ***** BEGIN GPL LICENSE BLOCK *****
*
* 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.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* Contributor(s):
*
* ***** END GPL LICENSE BLOCK *****
*/
#ifndef __UVEDIT_PARAMETRIZER_H__
#define __UVEDIT_PARAMETRIZER_H__
/** \file blender/editors/uvedit/uvedit_parametrizer.h
* \ingroup eduv
*/
#ifdef __cplusplus
extern "C" {
#endif
#include "BLI_sys_types.h" // for intptr_t support
typedef void ParamHandle; /* handle to a set of charts */
typedef intptr_t ParamKey; /* (hash) key for identifying verts and faces */
typedef enum ParamBool {
PARAM_TRUE = 1,
PARAM_FALSE = 0
} ParamBool;
/* Chart construction:
* -------------------
* - faces and seams may only be added between construct_{begin|end}
* - the pointers to co and uv are stored, rather than being copied
* - vertices are implicitly created
* - in construct_end the mesh will be split up according to the seams
* - the resulting charts must be:
* - manifold, connected, open (at least one boundary loop)
* - output will be written to the uv pointers
*/
ParamHandle *param_construct_begin(void);
void param_aspect_ratio(ParamHandle *handle, float aspx, float aspy);
void param_face_add(ParamHandle *handle,
ParamKey key,
int nverts,
ParamKey *vkeys,
float *co[4],
float *uv[4],
ParamBool *pin,
ParamBool *select,
float face_normal[3]);
void param_edge_set_seam(ParamHandle *handle,
ParamKey *vkeys);
void param_construct_end(ParamHandle *handle, ParamBool fill, ParamBool impl);
void param_delete(ParamHandle *chart);
/* Least Squares Conformal Maps:
* -----------------------------
* - charts with less than two pinned vertices are assigned 2 pins
* - lscm is divided in three steps:
* - begin: compute matrix and it's factorization (expensive)
* - solve using pinned coordinates (cheap)
* - end: clean up
* - uv coordinates are allowed to change within begin/end, for
* quick re-solving
*/
void param_lscm_begin(ParamHandle *handle, ParamBool live, ParamBool abf);
void param_lscm_solve(ParamHandle *handle);
void param_lscm_end(ParamHandle *handle);
/* Stretch */
void param_stretch_begin(ParamHandle *handle);
void param_stretch_blend(ParamHandle *handle, float blend);
void param_stretch_iter(ParamHandle *handle);
void param_stretch_end(ParamHandle *handle);
/* Area Smooth */
void param_smooth_area(ParamHandle *handle);
/* Packing */
void param_pack(ParamHandle *handle, float margin, bool do_rotate);
/* Average area for all charts */
void param_average(ParamHandle *handle);
/* Simple x,y scale */
void param_scale(ParamHandle *handle, float x, float y);
/* Flushing */
void param_flush(ParamHandle *handle);
void param_flush_restore(ParamHandle *handle);
#ifdef __cplusplus
}
#endif
#endif /*__UVEDIT_PARAMETRIZER_H__*/
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