mirror of
https://github.com/blender/blender
synced 2026-11-01 03:16:58 +03:00
32614c4eaf
Changes include: - Fix stale error values being used during refinement with the "refit" solver. - Use multiple split-point detection methods (max distance, sign-change & inflection point for S-shaped curves). - Heap comparator uses the index as a tie breaker for more stable ordering when values match. Results in higher quality fitting as measured by area delta between input/output polygons. Ref !152677
69 lines
2.6 KiB
C
69 lines
2.6 KiB
C
/*
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* Copyright (c) 2016, Campbell Barton.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of the <organization> nor the
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* names of its contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef __CURVE_FIT_INTERN_H__
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#define __CURVE_FIT_INTERN_H__
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#ifndef __CURVE_FIT_UINT_DEFINED__
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#define __CURVE_FIT_UINT_DEFINED__
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typedef unsigned int uint;
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#endif
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/**
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* Internal header for shared declarations between curve_fit_cubic.c
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* and curve_fit_cubic_refit.c.
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*/
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/* Split point calculation functions (implemented in curve_fit_cubic.c) */
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#define SPLIT_POINT_INVALID ((uint)-1)
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uint split_point_find_sign_change(
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const double *points,
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const uint points_len,
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const uint index_l, const uint index_r,
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const uint dims);
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uint split_point_find_max_distance(
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const double *points,
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const uint points_len,
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const uint index_l, const uint index_r,
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const uint dims);
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uint split_point_find_max_on_axis(
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const double *points,
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const uint points_len,
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const uint index_l, const uint index_r,
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const double *axis,
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const uint dims);
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uint split_point_find_inflection(
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const double *points,
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const uint points_len,
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const uint index_l, const uint index_r,
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const uint dims);
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#endif /* __CURVE_FIT_INTERN_H__ */
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