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doxygen="_cgi:http://www.nevrax.org/cgi-bin/nel-search.cgi" href="http://www.nevrax.org/cgi-bin/nel-search.cgi">Search</a> </center> +<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> + +<!-- footer --> +<BR><FONT Size=+5> </FONT> +</TD> +<TD WIDTH=15><IMG SRC=http://www.nevrax.org/inc/img/pixel.gif WIDTH=15 HEIGHT=15 BORDER=0 ALT=""></TD> +</TR> +</TABLE> +</BODY> +</HTML> |