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CELLPADDING=0 BORDER=0 width=100%><tr><td width=1% valign=middle><img width=6 height=14 hspace=2 vspace=2 src="/inc/img/reddots.gif"></TD> <TD><B>Documentation</B></TD> <TD ALIGN=RIGHT> </td> </tr></table> <!-- Generated by Doxygen 1.2.14 --> <center> <a class="qindex" href="index.html">Main Page</a> <a class="qindex" href="namespaces.html">Namespace List</a> <a class="qindex" href="hierarchy.html">Class Hierarchy</a> <a class="qindex" href="classes.html">Alphabetical List</a> <a class="qindex" href="annotated.html">Compound List</a> <a class="qindex" href="files.html">File List</a> <a class="qindex" href="namespacemembers.html">Namespace Members</a> <a class="qindex" href="functions.html">Compound Members</a> <a class="qindex" href="globals.html">File Members</a> <a class="qindex" href="pages.html">Related Pages</a> <a class="qindexRef" doxygen="_cgi:/cgi-bin/nel-search.cgi" href="/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=/inc/img/pixel.gif WIDTH=15 HEIGHT=15 BORDER=0 ALT=""></TD> </TR> </TABLE> </BODY> </HTML>