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#ifndef __PARAMETRIZER_H__
#define __PARAMETRIZER_H__
#ifdef __cplusplus
extern "C" {
#endif
#include "BLO_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 param_aspect_ratio(ParamHandle *handle, float aspx, float aspy);
void param_face_add(ParamHandle *handle,
ParamKey key,
int nverts,
ParamKey *vkeys,
float **co,
float **uv,
ParamBool *pin,
ParamBool *select);
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);
/* 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 /*__PARAMETRIZER_H__*/
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