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<hr><h1>bezier_patch.h</h1><a href="bezier__patch_8h.html">Go to the documentation of this file.</a><div class="fragment"><pre>00001
00007 <font class="comment">/* Copyright, 2000 Nevrax Ltd.</font>
00008 <font class="comment"> *</font>
00009 <font class="comment"> * This file is part of NEVRAX NEL.</font>
00010 <font class="comment"> * NEVRAX NEL is free software; you can redistribute it and/or modify</font>
00011 <font class="comment"> * it under the terms of the GNU General Public License as published by</font>
00012 <font class="comment"> * the Free Software Foundation; either version 2, or (at your option)</font>
00013 <font class="comment"> * any later version.</font>
00014 <font class="comment"></font>
00015 <font class="comment"> * NEVRAX NEL is distributed in the hope that it will be useful, but</font>
00016 <font class="comment"> * WITHOUT ANY WARRANTY; without even the implied warranty of</font>
00017 <font class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</font>
00018 <font class="comment"> * General Public License for more details.</font>
00019 <font class="comment"></font>
00020 <font class="comment"> * You should have received a copy of the GNU General Public License</font>
00021 <font class="comment"> * along with NEVRAX NEL; see the file COPYING. If not, write to the</font>
00022 <font class="comment"> * Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,</font>
00023 <font class="comment"> * MA 02111-1307, USA.</font>
00024 <font class="comment"> */</font>
00025
00026 <font class="preprocessor">#ifndef NL_BEZIER_PATCH_H</font>
00027 <font class="preprocessor"></font><font class="preprocessor">#define NL_BEZIER_PATCH_H</font>
00028 <font class="preprocessor"></font>
00029 <font class="preprocessor">#include "<a class="code" href="types__nl_8h.html">nel/misc/types_nl.h</a>"</font>
00030 <font class="preprocessor">#include "<a class="code" href="vector_8h.html">nel/misc/vector.h</a>"</font>
00031 <font class="preprocessor">#include "<a class="code" href="vectord_8h.html">nel/misc/vectord.h</a>"</font>
00032 <font class="preprocessor">#include "<a class="code" href="matrix_8h.html">nel/misc/matrix.h</a>"</font>
00033
00034
00035 <font class="keyword">namespace </font>NL3D
00036 {
00037
00038
00039 <font class="keyword">using</font> <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a>;
00040 <font class="keyword">using</font> <a class="code" href="classNLMISC_1_1CVectorD.html">NLMISC::CVectorD</a>;
00041 <font class="keyword">using</font> <a class="code" href="classNLMISC_1_1CMatrix.html">NLMISC::CMatrix</a>;
00042
00043
00044 <font class="comment">// ***************************************************************************</font>
<a name="l00073"></a><a class="code" href="classNL3D_1_1CBezierPatch.html">00073</a> <font class="comment"></font><font class="keyword">class </font>CBezierPatch
00074 {
00075 <font class="keyword">public</font>:
<a name="l00077"></a><a class="code" href="classNL3D_1_1CBezierPatch.html#m0">00077</a> CVector <a class="code" href="classNL3D_1_1CBezierPatch.html#m0">Vertices</a>[4];
<a name="l00079"></a><a class="code" href="classNL3D_1_1CBezierPatch.html#m1">00079</a> CVector <a class="code" href="classNL3D_1_1CBezierPatch.html#m1">Tangents</a>[8];
<a name="l00081"></a><a class="code" href="classNL3D_1_1CBezierPatch.html#m2">00081</a> CVector <a class="code" href="classNL3D_1_1CBezierPatch.html#m2">Interiors</a>[4];
00082
00083
00084 <font class="keyword">public</font>:
<a name="l00086"></a><a class="code" href="classNL3D_1_1CBezierPatch.html#a0">00086</a> <a class="code" href="classNL3D_1_1CBezierPatch.html#a0">CBezierPatch</a>() {}
00087
00089 <font class="keywordtype">void</font> <a class="code" href="classNL3D_1_1CBezierPatch.html#a1">make</a>(CVector vertices[4], CVector normals[4]);
00091 <font class="keywordtype">void</font> <a class="code" href="classNL3D_1_1CBezierPatch.html#a2">makeInteriors</a>();
00093 <font class="keywordtype">void</font> <a class="code" href="classNL3D_1_1CBezierPatch.html#a3">applyMatrix</a>(<font class="keyword">const</font> CMatrix &m);
00094
00096 CVector <a class="code" href="classNL3D_1_1CBezierPatch.html#a4">eval</a>(<font class="keywordtype">float</font> <a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>, <font class="keywordtype">float</font> <a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a>) <font class="keyword">const</font>; <font class="comment">// s,t coordinates for quad.</font>
00098 <font class="comment"> CVectorD evalDouble(double s, double t) const; // s,t coordinates for quad.</font>
00100 <font class="comment"> CVector evalNormal(float s, float t) const; // s,t coordinates for quad.</font>
00102 <font class="comment"> CVector evalTangentS(float s, float t) const; // s,t coordinates for quad.</font>
00104 <font class="comment"> CVector evalTangentT(float s, float t) const; // s,t coordinates for quad.</font>
00105
00106
00108 <font class="comment">// @{</font>
00112 <font class="comment"></font> <font class="keywordtype">void</font> <a class="code" href="classNL3D_1_1CBezierPatch.html#z386_0">subdivideS</a>(<a class="code" href="classNL3D_1_1CBezierPatch.html#a0">CBezierPatch</a> &left, <a class="code" href="classNL3D_1_1CBezierPatch.html#a0">CBezierPatch</a> &right, <font class="keywordtype">float</font> <a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>=0.5f) <font class="keyword">const</font>;
00116 <font class="keywordtype">void</font> <a class="code" href="classNL3D_1_1CBezierPatch.html#z386_1">subdivideT</a>(<a class="code" href="classNL3D_1_1CBezierPatch.html#a0">CBezierPatch</a> &top, <a class="code" href="classNL3D_1_1CBezierPatch.html#a0">CBezierPatch</a> &bottom, <font class="keywordtype">float</font> <a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a>=0.5f) <font class="keyword">const</font>;
00117 <font class="comment">// @}</font>
00118
00119
00120 <font class="comment">// **********************************</font>
00121 <font class="keyword">private</font>:
<a name="l00122"></a><a class="code" href="structNL3D_1_1CBezierPatch_1_1CBezierCurve.html">00122</a> <font class="keyword">struct </font>CBezierCurve
00123 {
<a name="l00124"></a><a class="code" href="structNL3D_1_1CBezierPatch_1_1CBezierCurve.html#m3">00124</a> CVector <a class="code" href="structNL3D_1_1CBezierPatch_1_1CBezierCurve.html#m0">P0</a>, <a class="code" href="structNL3D_1_1CBezierPatch_1_1CBezierCurve.html#m1">P1</a>, <a class="code" href="structNL3D_1_1CBezierPatch_1_1CBezierCurve.html#m2">P2</a>, <a class="code" href="structNL3D_1_1CBezierPatch_1_1CBezierCurve.html#m3">P3</a>;
00125 <font class="keywordtype">void</font> <a class="code" href="structNL3D_1_1CBezierPatch_1_1CBezierCurve.html#a0">subdivide</a>(CBezierCurve &left, CBezierCurve &right, <font class="keywordtype">float</font> <a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a>);
<a name="l00126"></a><a class="code" href="structNL3D_1_1CBezierPatch_1_1CBezierCurve.html#a1">00126</a> <font class="keywordtype">void</font> <a class="code" href="structNL3D_1_1CBezierPatch_1_1CBezierCurve.html#a1">set</a>(<font class="keyword">const</font> CVector &a, <font class="keyword">const</font> CVector &b, <font class="keyword">const</font> CVector &c, <font class="keyword">const</font> CVector &d)
00127 {
00128 <a class="code" href="structNL3D_1_1CBezierPatch_1_1CBezierCurve.html#m0">P0</a>= a; <a class="code" href="structNL3D_1_1CBezierPatch_1_1CBezierCurve.html#m1">P1</a>= b; <a class="code" href="structNL3D_1_1CBezierPatch_1_1CBezierCurve.html#m2">P2</a>= c; <a class="code" href="structNL3D_1_1CBezierPatch_1_1CBezierCurve.html#m3">P3</a>= d;
00129 }
<a name="l00130"></a><a class="code" href="structNL3D_1_1CBezierPatch_1_1CBezierCurve.html#a2">00130</a> <font class="keywordtype">void</font> <a class="code" href="structNL3D_1_1CBezierPatch_1_1CBezierCurve.html#a2">get</a>(CVector &a, CVector &b, CVector &c, CVector &d)
00131 {
00132 a= <a class="code" href="structNL3D_1_1CBezierPatch_1_1CBezierCurve.html#m0">P0</a>; b= <a class="code" href="structNL3D_1_1CBezierPatch_1_1CBezierCurve.html#m1">P1</a>; c= <a class="code" href="structNL3D_1_1CBezierPatch_1_1CBezierCurve.html#m2">P2</a>; d= <a class="code" href="structNL3D_1_1CBezierPatch_1_1CBezierCurve.html#m3">P3</a>;
00133 }
00134 };
00135
00136 };
00137
00138
00139
00140 } <font class="comment">// NL3D</font>
00141
00142
00143 <font class="preprocessor">#endif // NL_BEZIER_PATCH_H</font>
00144 <font class="preprocessor"></font>
00145 <font class="comment">/* End of bezier_patch.h */</font>
</pre></div>
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