2 Copyright (C) 1999-2007 id Software, Inc. and contributors.
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3 For a list of contributors, see the accompanying CONTRIBUTORS file.
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5 This file is part of GtkRadiant.
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7 GtkRadiant is free software; you can redistribute it and/or modify
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8 it under the terms of the GNU General Public License as published by
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9 the Free Software Foundation; either version 2 of the License, or
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10 (at your option) any later version.
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12 GtkRadiant is distributed in the hope that it will be useful,
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13 but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 GNU General Public License for more details.
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17 You should have received a copy of the GNU General Public License
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18 along with GtkRadiant; if not, write to the Free Software
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19 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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26 vec3_t p[4]; // variable sized
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29 #define MAX_POINTS_ON_WINDING 64
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31 // you can define on_epsilon in the makefile as tighter
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33 #define ON_EPSILON 0.1
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36 winding_t *AllocWinding (int points);
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37 vec_t WindingArea (winding_t *w);
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38 void WindingCenter (winding_t *w, vec3_t center);
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39 void ClipWindingEpsilon (winding_t *in, vec3_t normal, vec_t dist,
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40 vec_t epsilon, winding_t **front, winding_t **back);
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41 winding_t *ChopWinding (winding_t *in, vec3_t normal, vec_t dist);
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42 winding_t *CopyWinding (winding_t *w);
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43 winding_t *ReverseWinding (winding_t *w);
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44 winding_t *BaseWindingForPlane (vec3_t normal, vec_t dist);
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45 void CheckWinding (winding_t *w);
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46 void WindingPlane (winding_t *w, vec3_t normal, vec_t *dist);
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47 void RemoveColinearPoints (winding_t *w);
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48 int WindingOnPlaneSide (winding_t *w, vec3_t normal, vec_t dist);
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49 void FreeWinding (winding_t *w);
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50 void WindingBounds (winding_t *w, vec3_t mins, vec3_t maxs);
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52 void ChopWindingInPlace (winding_t **w, vec3_t normal, vec_t dist, vec_t epsilon);
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53 // frees the original if clipped
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55 void pw(winding_t *w);
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