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<hr><h1>triangle.h</h1><div class="fragment"><pre>00001 <font class="comment">//</font>
00002 <font class="comment">// triangle.h</font>
00003 <font class="comment">//</font>
00004 <font class="comment">// Copyright (C) 1996 Limit Point Systems, Inc.</font>
00005 <font class="comment">//</font>
00006 <font class="comment">// Author: Curtis Janssen <cljanss@limitpt.com></font>
00007 <font class="comment">// Maintainer: LPS</font>
00008 <font class="comment">//</font>
00009 <font class="comment">// This file is part of the SC Toolkit.</font>
00010 <font class="comment">//</font>
00011 <font class="comment">// The SC Toolkit is free software; you can redistribute it and/or modify</font>
00012 <font class="comment">// it under the terms of the GNU Library General Public License as published by</font>
00013 <font class="comment">// the Free Software Foundation; either version 2, or (at your option)</font>
00014 <font class="comment">// any later version.</font>
00015 <font class="comment">//</font>
00016 <font class="comment">// The SC Toolkit is distributed in the hope that it will be useful,</font>
00017 <font class="comment">// but WITHOUT ANY WARRANTY; without even the implied warranty of</font>
00018 <font class="comment">// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</font>
00019 <font class="comment">// GNU Library General Public License for more details.</font>
00020 <font class="comment">//</font>
00021 <font class="comment">// You should have received a copy of the GNU Library General Public License</font>
00022 <font class="comment">// along with the SC Toolkit; see the file COPYING.LIB. If not, write to</font>
00023 <font class="comment">// the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.</font>
00024 <font class="comment">//</font>
00025 <font class="comment">// The U.S. Government is granted a limited license as per AL 91-7.</font>
00026 <font class="comment">//</font>
00027
00028 <font class="preprocessor">#ifndef _math_isosurf_triangle_h</font>
00029 <font class="preprocessor"></font><font class="preprocessor">#define _math_isosurf_triangle_h</font>
00030 <font class="preprocessor"></font>
00031 <font class="preprocessor">#ifdef __GNUC__</font>
00032 <font class="preprocessor"></font><font class="preprocessor">#pragma interface</font>
00033 <font class="preprocessor"></font><font class="preprocessor">#endif</font>
00034 <font class="preprocessor"></font>
00035 <font class="preprocessor">#include <math/isosurf/tricoef.h></font>
00036 <font class="preprocessor">#include <math/isosurf/edge.h></font>
00037
00038 <font class="keyword">namespace </font>sc {
00039
00040 <font class="keyword">class </font>Triangle: <font class="keyword">public</font> RefCount {
00041 <font class="keyword">protected</font>:
00042 <font class="comment">// these break gcc 2.5.8</font>
00043 <font class="comment">//unsigned int _order:5;</font>
00044 <font class="comment">//unsigned int _orientation0:1;</font>
00045 <font class="comment">//unsigned int _orientation1:1;</font>
00046 <font class="comment">//unsigned int _orientation2:1;</font>
00047 <font class="comment">//unsigned char _order;</font>
00048 <font class="comment">//unsigned char _orientation0;</font>
00049 <font class="comment">//unsigned char _orientation1;</font>
00050 <font class="comment">//unsigned char _orientation2;</font>
00051 <font class="keywordtype">unsigned</font> <font class="keywordtype">int</font> _order;
00052 <font class="keywordtype">unsigned</font> <font class="keywordtype">int</font> _orientation0;
00053 <font class="keywordtype">unsigned</font> <font class="keywordtype">int</font> _orientation1;
00054 <font class="keywordtype">unsigned</font> <font class="keywordtype">int</font> _orientation2;
00055 Ref<Edge> _edges[3];
00056 Ref<Vertex> *_vertices;
00057 <font class="keyword">public</font>:
00058 <font class="keyword">enum</font> {max_order = 10};
00059
00060 Triangle(<font class="keyword">const</font> Ref<Edge>& v1, <font class="keyword">const</font> Ref<Edge>& v2, <font class="keyword">const</font> Ref<Edge>& v3,
00061 <font class="keywordtype">unsigned</font> <font class="keywordtype">int</font> orient0 = 0);
00062 Ref<Edge> edge(<font class="keywordtype">int</font> i)<font class="keyword"> </font>{ <font class="keywordflow">return</font> _edges[i]; };
00063 <font class="keywordtype">int</font> contains(<font class="keyword">const</font> Ref<Edge>&) <font class="keyword">const</font>;
00064 <font class="keywordtype">unsigned</font> <font class="keywordtype">int</font> orientation(<font class="keywordtype">int</font> i)<font class="keyword"> const</font>
00065 <font class="keyword"> </font>{
00066 <font class="keywordflow">return</font> i==0?_orientation0:i==1?_orientation1:_orientation2;
00067 }
00068 <font class="keywordtype">unsigned</font> <font class="keywordtype">int</font> orientation(<font class="keyword">const</font> Ref<Edge>&) <font class="keyword">const</font>;
00069 ~Triangle();
00070 <font class="keywordtype">void</font> add_edges(AVLSet<Ref<Edge> >&);
00071 <font class="keywordtype">void</font> add_vertices(AVLSet<Ref<Vertex> >&);
00072
00073 <font class="comment">// returns the surface area element</font>
00074 <font class="comment">// 0<=r<=1, 0<=s<=1, 0<=r+s<=1</font>
00075 <font class="comment">// Ref<Vertex> is the intepolated vertex (both point and normal)</font>
00076 <font class="keywordtype">void</font> interpolate(<font class="keyword">const</font> Ref<TriInterpCoef>&,
00077 <font class="keywordtype">double</font> r,<font class="keywordtype">double</font> s,<font class="keyword">const</font> Ref<Vertex>&v, SCVector3& dA);
00078 <font class="keywordtype">void</font> interpolate(<font class="keywordtype">double</font> r,<font class="keywordtype">double</font> s,<font class="keyword">const</font> Ref<Vertex>&v, SCVector3& dA);
00079 <font class="keywordtype">void</font> interpolate(<font class="keywordtype">double</font> r,<font class="keywordtype">double</font> s,<font class="keyword">const</font> Ref<Vertex>&v, SCVector3& dA,
00080 <font class="keyword">const</font> Ref<Volume> &vol, <font class="keywordtype">double</font> isovalue);
00081
00082 <font class="comment">// returns a corner vertex from the triangle</font>
00083 <font class="comment">// i = 0 is the (0,0) vertex (or L1 = 1, L2 = 0, L3 = 0)</font>
00084 <font class="comment">// i = 1 is the (r=1,s=0) vertex (or L1 = 0, L2 = 1, L3 = 0)</font>
00085 <font class="comment">// i = 2 is the (r=0,s=1) vertex (or L1 = 0, L2 = 0, L3 = 1)</font>
00086 Ref<Vertex> vertex(<font class="keywordtype">int</font> i);
00087
00088 <font class="keywordtype">double</font> flat_area();
00089
00090 <font class="comment">// flip the orientation</font>
00091 <font class="keywordtype">void</font> flip();
00092
00093 <font class="keywordtype">unsigned</font> <font class="keywordtype">int</font> order()<font class="keyword"> const </font>{ <font class="keywordflow">return</font> _order; }
00094
00095 <font class="keywordtype">void</font> set_order(<font class="keywordtype">int</font> order, <font class="keyword">const</font> Ref<Volume>&vol,<font class="keywordtype">double</font> isovalue);
00096 };
00097
00098
00099
00100 <font class="keyword">class </font>TriangleIntegrator: <font class="keyword">public</font> DescribedClass {
00101 <font class="keyword">private</font>:
00102 <font class="keywordtype">int</font> _n;
00103 <font class="keywordtype">double</font>* _r;
00104 <font class="keywordtype">double</font>* _s;
00105 <font class="keywordtype">double</font>* _w;
00106 <font class="comment">// precomputed interpolation coefficients for triangles of various orders</font>
00107 Ref<TriInterpCoef> **coef_; <font class="comment">// max_order by _n</font>
00108 <font class="keyword">protected</font>:
00109 <font class="keywordtype">void</font> set_r(<font class="keywordtype">int</font> i,<font class="keywordtype">double</font> r);
00110 <font class="keywordtype">void</font> set_s(<font class="keywordtype">int</font> i,<font class="keywordtype">double</font> s);
00111 <font class="keywordtype">void</font> set_w(<font class="keywordtype">int</font> i,<font class="keywordtype">double</font> w);
00112 <font class="keywordtype">void</font> init_coef();
00113 <font class="keywordtype">void</font> clear_coef();
00114 <font class="keyword">public</font>:
00115 TriangleIntegrator(<font class="keyword">const</font> Ref<KeyVal>&);
00116 TriangleIntegrator(<font class="keywordtype">int</font> n);
00117 <font class="keyword">virtual</font> ~TriangleIntegrator();
00118 <font class="keyword">inline</font> <font class="keywordtype">double</font> w(<font class="keywordtype">int</font> i)<font class="keyword"> </font>{ <font class="keywordflow">return</font> _w[i]; }
00119 <font class="keyword">inline</font> <font class="keywordtype">double</font> r(<font class="keywordtype">int</font> i)<font class="keyword"> </font>{ <font class="keywordflow">return</font> _r[i]; }
00120 <font class="keyword">inline</font> <font class="keywordtype">double</font> s(<font class="keywordtype">int</font> i)<font class="keyword"> </font>{ <font class="keywordflow">return</font> _s[i]; }
00121 <font class="keyword">inline</font> <font class="keywordtype">int</font> n()<font class="keyword"> </font>{ <font class="keywordflow">return</font> _n; }
00122 <font class="keyword">virtual</font> <font class="keywordtype">void</font> set_n(<font class="keywordtype">int</font> n);
00123 Ref<TriInterpCoef> coef(<font class="keywordtype">int</font> order, <font class="keywordtype">int</font> i)<font class="keyword"> </font>{ <font class="keywordflow">return</font> coef_[order-1][i]; }
00124 };
00125
00126
00127 <font class="keyword">class </font>GaussTriangleIntegrator: <font class="keyword">public</font> TriangleIntegrator {
00128 <font class="keyword">private</font>:
00129 <font class="keywordtype">void</font> init_rw(<font class="keywordtype">int</font> order);
00130 <font class="keyword">public</font>:
00131 GaussTriangleIntegrator(<font class="keyword">const</font> Ref<KeyVal>&);
00132 GaussTriangleIntegrator(<font class="keywordtype">int</font> order);
00133 ~GaussTriangleIntegrator();
00134 <font class="keywordtype">void</font> set_n(<font class="keywordtype">int</font> n);
00135 };
00136
00137 }
00138
00139 <font class="preprocessor">#endif</font>
00140 <font class="preprocessor"></font>
00141 <font class="comment">// Local Variables:</font>
00142 <font class="comment">// mode: c++</font>
00143 <font class="comment">// c-file-style: "CLJ"</font>
00144 <font class="comment">// End:</font>
</div></pre><hr>
<address>
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Generated at Mon Oct 14 14:16:38 2002 for <a
href="http://aros.ca.sandia.gov/~cljanss/mpqc">MPQC</a>
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