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crystalspace-doc-1.2.1-5mdv2010.0.i586.rpm

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<h1>csgeom/path.h</h1><a href="csgeom_2path_8h.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*</span>
<a name="l00002"></a>00002 <span class="comment">    Copyright (C) 2001 by Jorrit Tyberghein</span>
<a name="l00003"></a>00003 <span class="comment"></span>
<a name="l00004"></a>00004 <span class="comment">    This library is free software; you can redistribute it and/or</span>
<a name="l00005"></a>00005 <span class="comment">    modify it under the terms of the GNU Library General Public</span>
<a name="l00006"></a>00006 <span class="comment">    License as published by the Free Software Foundation; either</span>
<a name="l00007"></a>00007 <span class="comment">    version 2 of the License, or (at your option) any later version.</span>
<a name="l00008"></a>00008 <span class="comment"></span>
<a name="l00009"></a>00009 <span class="comment">    This library is distributed in the hope that it will be useful,</span>
<a name="l00010"></a>00010 <span class="comment">    but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
<a name="l00011"></a>00011 <span class="comment">    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU</span>
<a name="l00012"></a>00012 <span class="comment">    Library General Public License for more details.</span>
<a name="l00013"></a>00013 <span class="comment"></span>
<a name="l00014"></a>00014 <span class="comment">    You should have received a copy of the GNU Library General Public</span>
<a name="l00015"></a>00015 <span class="comment">    License along with this library; if not, write to the Free</span>
<a name="l00016"></a>00016 <span class="comment">    Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.</span>
<a name="l00017"></a>00017 <span class="comment">*/</span>
<a name="l00018"></a>00018 
<a name="l00019"></a>00019 <span class="preprocessor">#ifndef __CS_PATH_H__</span>
<a name="l00020"></a>00020 <span class="preprocessor"></span><span class="preprocessor">#define __CS_PATH_H__</span>
<a name="l00021"></a>00021 <span class="preprocessor"></span>
<a name="l00022"></a>00022 
<a name="l00030"></a>00030 <span class="preprocessor">#include "csextern.h"</span>
<a name="l00031"></a>00031 
<a name="l00032"></a>00032 <span class="preprocessor">#include "<a class="code" href="spline_8h.html" title="Splines.">csgeom/spline.h</a>"</span>
<a name="l00033"></a>00033 <span class="preprocessor">#include "<a class="code" href="vector3_8h.html" title="3D vector.">csgeom/vector3.h</a>"</span>
<a name="l00034"></a>00034 <span class="preprocessor">#include "<a class="code" href="scf__implementation_8h.html" title="Crystal Space Shared Class Facility (SCF) - implementation creation support.">csutil/scf_implementation.h</a>"</span>
<a name="l00035"></a>00035 
<a name="l00036"></a>00036 <span class="preprocessor">#include "<a class="code" href="igeom_2path_8h.html" title="3D path interfaces">igeom/path.h</a>"</span>
<a name="l00037"></a>00037 
<a name="l00044"></a><a class="code" href="classcsPath.html">00044</a> <span class="keyword">class </span>CS_CRYSTALSPACE_EXPORT <a class="code" href="classcsPath.html" title="A path in 3D.">csPath</a> :
<a name="l00045"></a>00045   <span class="keyword">public</span> <a class="code" href="classscfImplementation1.html">scfImplementation1</a>&lt;csPath, iPath&gt;
<a name="l00046"></a>00046 {
<a name="l00047"></a>00047 <span class="keyword">protected</span>:
<a name="l00048"></a><a class="code" href="classcsPath.html#4ae74a9c7bfaba1d95c390ea8d142631">00048</a>   <a class="code" href="classcsCatmullRomSpline.html" title="A CatmullRom spline.">csCatmullRomSpline</a> spline;
<a name="l00049"></a>00049 
<a name="l00050"></a>00050 <span class="keyword">private</span>:
<a name="l00051"></a>00051   <span class="keywordtype">void</span> SetVectorAsDimensionValues (<span class="keywordtype">int</span> dim, <a class="code" href="classcsVector3.html" title="A 3D vector.">csVector3</a>* v)
<a name="l00052"></a>00052   {
<a name="l00053"></a>00053     <span class="keywordtype">int</span> i;
<a name="l00054"></a>00054     <span class="keywordtype">int</span> N = spline.GetPointCount();
<a name="l00055"></a>00055     <span class="keywordtype">float</span>* x, * y, * z;
<a name="l00056"></a>00056     x = <span class="keyword">new</span> <span class="keywordtype">float</span> [N];
<a name="l00057"></a>00057     y = <span class="keyword">new</span> <span class="keywordtype">float</span> [N];
<a name="l00058"></a>00058     z = <span class="keyword">new</span> <span class="keywordtype">float</span> [N];
<a name="l00059"></a>00059     <span class="keywordflow">for</span> (i = 0 ; i &lt; N ; i++)
<a name="l00060"></a>00060     {
<a name="l00061"></a>00061       x[i] = v[i].<a class="code" href="classcsVector3.html#823fdba459ff91e8a5e6834ded7c815f" title="The X component of the vector.">x</a>;
<a name="l00062"></a>00062       y[i] = v[i].<a class="code" href="classcsVector3.html#e0a74264b61eb5d61da63b3c101af719" title="The Y component of the vector.">y</a>;
<a name="l00063"></a>00063       z[i] = v[i].<a class="code" href="classcsVector3.html#3f761bd195c7ccec59ea863a87a1ad05" title="The Z component of the vector.">z</a>;
<a name="l00064"></a>00064     }
<a name="l00065"></a>00065     spline.SetDimensionValues (dim+0, x);
<a name="l00066"></a>00066     spline.SetDimensionValues (dim+1, y);
<a name="l00067"></a>00067     spline.SetDimensionValues (dim+2, z);
<a name="l00068"></a>00068     <span class="keyword">delete</span>[] x;
<a name="l00069"></a>00069     <span class="keyword">delete</span>[] y;
<a name="l00070"></a>00070     <span class="keyword">delete</span>[] z;
<a name="l00071"></a>00071   }
<a name="l00072"></a>00072 
<a name="l00073"></a>00073 <span class="keyword">public</span>:
<a name="l00074"></a>00074 
<a name="l00076"></a><a class="code" href="classcsPath.html#b1e775cfc8e243c53044959314e5158f">00076</a>   <a class="code" href="classcsPath.html" title="A path in 3D.">csPath</a> (<span class="keywordtype">int</span> p) : <a class="code" href="classscfImplementation1.html">scfImplementationType</a>(this), spline (9, p)
<a name="l00077"></a>00077   { }
<a name="l00078"></a>00078 
<a name="l00080"></a><a class="code" href="classcsPath.html#3e5011dafbee8ee65c8f826cd5091964">00080</a>   <span class="keyword">virtual</span> ~<a class="code" href="classcsPath.html" title="A path in 3D.">csPath</a> ()
<a name="l00081"></a>00081   { }
<a name="l00082"></a>00082 
<a name="l00084"></a><a class="code" href="classcsPath.html#29ff2c85c39e43484bf6eede70c9e713">00084</a>   <span class="keyword">virtual</span> <span class="keywordtype">int</span> Length ()
<a name="l00085"></a>00085   {
<a name="l00086"></a>00086     <span class="keywordflow">return</span> spline.GetPointCount();
<a name="l00087"></a>00087   }
<a name="l00088"></a>00088 
<a name="l00090"></a><a class="code" href="classcsPath.html#f647db6e88420b3b6ddfae29cf44fee1">00090</a>   <span class="keyword">virtual</span> <span class="keywordtype">void</span> CalculateAtTime (<span class="keywordtype">float</span> time)
<a name="l00091"></a>00091   {
<a name="l00092"></a>00092     spline.Calculate (time);
<a name="l00093"></a>00093   }
<a name="l00094"></a>00094  
<a name="l00096"></a><a class="code" href="classcsPath.html#40adfbb9404fd2f1cf0146c46723e8cc">00096</a>   <span class="keyword">virtual</span> <span class="keywordtype">int</span> GetCurrentIndex ()
<a name="l00097"></a>00097   {
<a name="l00098"></a>00098     <span class="keywordflow">return</span> spline.GetCurrentIndex();
<a name="l00099"></a>00099   }
<a name="l00101"></a><a class="code" href="classcsPath.html#88361d34013f698906dc5dd3bc421a75">00101</a>   <span class="keyword">virtual</span> <span class="keywordtype">float</span> GetTime (<span class="keywordtype">int</span> idx)
<a name="l00102"></a>00102   {
<a name="l00103"></a>00103     <span class="keywordflow">return</span> spline.GetTimeValue(idx);
<a name="l00104"></a>00104   }
<a name="l00105"></a>00105   
<a name="l00107"></a><a class="code" href="classcsPath.html#58b1a3f3dc015c86e106c41e56bcc3ad">00107</a>   <span class="keyword">virtual</span> <span class="keywordtype">void</span> SetTime (<span class="keywordtype">int</span> idx, <span class="keywordtype">float</span> t)
<a name="l00108"></a>00108   {
<a name="l00109"></a>00109     spline.SetTimeValue(idx,t);
<a name="l00110"></a>00110   }
<a name="l00111"></a>00111   
<a name="l00118"></a><a class="code" href="classcsPath.html#5ca6b626b710410bfdbfd7e6bc22cc3b">00118</a>   <span class="keywordtype">void</span> SetTimes (<span class="keywordtype">float</span> <span class="keyword">const</span>* t)
<a name="l00119"></a>00119   {
<a name="l00120"></a>00120     spline.SetTimeValues(t);
<a name="l00121"></a>00121   }
<a name="l00122"></a>00122  
<a name="l00124"></a><a class="code" href="classcsPath.html#a79dea73d57cf0e79a88c5102266cdf8">00124</a>   <span class="keywordtype">float</span> <span class="keyword">const</span>* GetTimes ()<span class="keyword"> const</span>
<a name="l00125"></a>00125 <span class="keyword">  </span>{
<a name="l00126"></a>00126     <span class="keywordflow">return</span> spline.GetTimeValues();
<a name="l00127"></a>00127   }
<a name="l00128"></a>00128   
<a name="l00130"></a><a class="code" href="classcsPath.html#d1d4fa81bd09470c1567b4d10da7ab98">00130</a>   <span class="keyword">virtual</span> <span class="keywordtype">void</span> SetPositionVectors (<a class="code" href="classcsVector3.html" title="A 3D vector.">csVector3</a>* v)
<a name="l00131"></a>00131   {
<a name="l00132"></a>00132     SetVectorAsDimensionValues (0, v);
<a name="l00133"></a>00133   }
<a name="l00135"></a><a class="code" href="classcsPath.html#21089eee0a832a7fa61af6cd5357c8de">00135</a>   <span class="keyword">virtual</span> <span class="keywordtype">void</span> SetUpVectors (<a class="code" href="classcsVector3.html" title="A 3D vector.">csVector3</a>* v)
<a name="l00136"></a>00136   {
<a name="l00137"></a>00137     SetVectorAsDimensionValues (3, v);
<a name="l00138"></a>00138   }
<a name="l00140"></a><a class="code" href="classcsPath.html#03dedfe361f1b09219aee5886a113bd3">00140</a>   <span class="keyword">virtual</span> <span class="keywordtype">void</span> SetForwardVectors (<a class="code" href="classcsVector3.html" title="A 3D vector.">csVector3</a>* v)
<a name="l00141"></a>00141   {
<a name="l00142"></a>00142     SetVectorAsDimensionValues (6, v);
<a name="l00143"></a>00143   }
<a name="l00145"></a><a class="code" href="classcsPath.html#369a8cff153598f2e1087cadf65177ea">00145</a>   <span class="keyword">virtual</span> <span class="keywordtype">void</span> SetPositionVector (<span class="keywordtype">int</span> idx, <span class="keyword">const</span> <a class="code" href="classcsVector3.html" title="A 3D vector.">csVector3</a>&amp; v)
<a name="l00146"></a>00146   {
<a name="l00147"></a>00147     spline.SetDimensionValue (0, idx, v.<a class="code" href="classcsVector3.html#823fdba459ff91e8a5e6834ded7c815f" title="The X component of the vector.">x</a>);
<a name="l00148"></a>00148     spline.SetDimensionValue (1, idx, v.<a class="code" href="classcsVector3.html#e0a74264b61eb5d61da63b3c101af719" title="The Y component of the vector.">y</a>);
<a name="l00149"></a>00149     spline.SetDimensionValue (2, idx, v.<a class="code" href="classcsVector3.html#3f761bd195c7ccec59ea863a87a1ad05" title="The Z component of the vector.">z</a>);
<a name="l00150"></a>00150   }
<a name="l00152"></a><a class="code" href="classcsPath.html#6e10ef5b599b230a9c4bc319cf9ed966">00152</a>   <span class="keyword">virtual</span> <span class="keywordtype">void</span> SetUpVector (<span class="keywordtype">int</span> idx, <span class="keyword">const</span> <a class="code" href="classcsVector3.html" title="A 3D vector.">csVector3</a>&amp; v)
<a name="l00153"></a>00153   {
<a name="l00154"></a>00154     spline.SetDimensionValue (3, idx, v.<a class="code" href="classcsVector3.html#823fdba459ff91e8a5e6834ded7c815f" title="The X component of the vector.">x</a>);
<a name="l00155"></a>00155     spline.SetDimensionValue (4, idx, v.<a class="code" href="classcsVector3.html#e0a74264b61eb5d61da63b3c101af719" title="The Y component of the vector.">y</a>);
<a name="l00156"></a>00156     spline.SetDimensionValue (5, idx, v.<a class="code" href="classcsVector3.html#3f761bd195c7ccec59ea863a87a1ad05" title="The Z component of the vector.">z</a>);
<a name="l00157"></a>00157   }
<a name="l00159"></a><a class="code" href="classcsPath.html#c79b4f5043918b78f11b86c6545b8376">00159</a>   <span class="keyword">virtual</span> <span class="keywordtype">void</span> SetForwardVector (<span class="keywordtype">int</span> idx, <span class="keyword">const</span> <a class="code" href="classcsVector3.html" title="A 3D vector.">csVector3</a>&amp; v)
<a name="l00160"></a>00160   {
<a name="l00161"></a>00161     spline.SetDimensionValue (6, idx, v.<a class="code" href="classcsVector3.html#823fdba459ff91e8a5e6834ded7c815f" title="The X component of the vector.">x</a>);
<a name="l00162"></a>00162     spline.SetDimensionValue (7, idx, v.<a class="code" href="classcsVector3.html#e0a74264b61eb5d61da63b3c101af719" title="The Y component of the vector.">y</a>);
<a name="l00163"></a>00163     spline.SetDimensionValue (8, idx, v.<a class="code" href="classcsVector3.html#3f761bd195c7ccec59ea863a87a1ad05" title="The Z component of the vector.">z</a>);
<a name="l00164"></a>00164   }
<a name="l00166"></a><a class="code" href="classcsPath.html#e3e516426fea85e59a8c267196fcaa89">00166</a>   <span class="keyword">virtual</span> <span class="keywordtype">void</span> GetPositionVector (<span class="keywordtype">int</span> idx, <a class="code" href="classcsVector3.html" title="A 3D vector.">csVector3</a>&amp; v)
<a name="l00167"></a>00167   {
<a name="l00168"></a>00168     v.<a class="code" href="classcsVector3.html#823fdba459ff91e8a5e6834ded7c815f" title="The X component of the vector.">x</a> = spline.GetDimensionValue (0, idx);
<a name="l00169"></a>00169     v.<a class="code" href="classcsVector3.html#e0a74264b61eb5d61da63b3c101af719" title="The Y component of the vector.">y</a> = spline.GetDimensionValue (1, idx);
<a name="l00170"></a>00170     v.<a class="code" href="classcsVector3.html#3f761bd195c7ccec59ea863a87a1ad05" title="The Z component of the vector.">z</a> = spline.GetDimensionValue (2, idx);
<a name="l00171"></a>00171   }
<a name="l00173"></a><a class="code" href="classcsPath.html#7d31e5cb8656faf7c16d926299756a68">00173</a>   <span class="keyword">virtual</span> <span class="keywordtype">void</span> GetUpVector (<span class="keywordtype">int</span> idx, <a class="code" href="classcsVector3.html" title="A 3D vector.">csVector3</a>&amp; v)
<a name="l00174"></a>00174   {
<a name="l00175"></a>00175     v.<a class="code" href="classcsVector3.html#823fdba459ff91e8a5e6834ded7c815f" title="The X component of the vector.">x</a> = spline.GetDimensionValue (3, idx);
<a name="l00176"></a>00176     v.<a class="code" href="classcsVector3.html#e0a74264b61eb5d61da63b3c101af719" title="The Y component of the vector.">y</a> = spline.GetDimensionValue (4, idx);
<a name="l00177"></a>00177     v.<a class="code" href="classcsVector3.html#3f761bd195c7ccec59ea863a87a1ad05" title="The Z component of the vector.">z</a> = spline.GetDimensionValue (5, idx);
<a name="l00178"></a>00178   }
<a name="l00180"></a><a class="code" href="classcsPath.html#1c71be4f74697c9443143d141ed102c9">00180</a>   <span class="keyword">virtual</span> <span class="keywordtype">void</span> GetForwardVector (<span class="keywordtype">int</span> idx, <a class="code" href="classcsVector3.html" title="A 3D vector.">csVector3</a>&amp; v)
<a name="l00181"></a>00181   {
<a name="l00182"></a>00182     v.<a class="code" href="classcsVector3.html#823fdba459ff91e8a5e6834ded7c815f" title="The X component of the vector.">x</a> = spline.GetDimensionValue (6, idx);
<a name="l00183"></a>00183     v.<a class="code" href="classcsVector3.html#e0a74264b61eb5d61da63b3c101af719" title="The Y component of the vector.">y</a> = spline.GetDimensionValue (7, idx);
<a name="l00184"></a>00184     v.<a class="code" href="classcsVector3.html#3f761bd195c7ccec59ea863a87a1ad05" title="The Z component of the vector.">z</a> = spline.GetDimensionValue (8, idx);
<a name="l00185"></a>00185   }
<a name="l00186"></a>00186 
<a name="l00188"></a><a class="code" href="classcsPath.html#00765fc3774592c16e94d43764d85e8a">00188</a>   <span class="keyword">virtual</span> <span class="keywordtype">void</span> GetInterpolatedPosition (<a class="code" href="classcsVector3.html" title="A 3D vector.">csVector3</a>&amp; pos)
<a name="l00189"></a>00189   {
<a name="l00190"></a>00190     pos.<a class="code" href="classcsVector3.html#823fdba459ff91e8a5e6834ded7c815f" title="The X component of the vector.">x</a> = spline.GetInterpolatedDimension (0);
<a name="l00191"></a>00191     pos.<a class="code" href="classcsVector3.html#e0a74264b61eb5d61da63b3c101af719" title="The Y component of the vector.">y</a> = spline.GetInterpolatedDimension (1);
<a name="l00192"></a>00192     pos.<a class="code" href="classcsVector3.html#3f761bd195c7ccec59ea863a87a1ad05" title="The Z component of the vector.">z</a> = spline.GetInterpolatedDimension (2);
<a name="l00193"></a>00193   }
<a name="l00195"></a><a class="code" href="classcsPath.html#df23670f8bb465da336b15bba3d44f02">00195</a>   <span class="keyword">virtual</span> <span class="keywordtype">void</span> GetInterpolatedUp (<a class="code" href="classcsVector3.html" title="A 3D vector.">csVector3</a>&amp; pos)
<a name="l00196"></a>00196   {
<a name="l00197"></a>00197     pos.<a class="code" href="classcsVector3.html#823fdba459ff91e8a5e6834ded7c815f" title="The X component of the vector.">x</a> = spline.GetInterpolatedDimension (3);
<a name="l00198"></a>00198     pos.<a class="code" href="classcsVector3.html#e0a74264b61eb5d61da63b3c101af719" title="The Y component of the vector.">y</a> = spline.GetInterpolatedDimension (4);
<a name="l00199"></a>00199     pos.<a class="code" href="classcsVector3.html#3f761bd195c7ccec59ea863a87a1ad05" title="The Z component of the vector.">z</a> = spline.GetInterpolatedDimension (5);
<a name="l00200"></a>00200   }
<a name="l00202"></a><a class="code" href="classcsPath.html#efcb6a00a18ad479b743aa3cd36bb0e1">00202</a>   <span class="keyword">virtual</span> <span class="keywordtype">void</span> GetInterpolatedForward (<a class="code" href="classcsVector3.html" title="A 3D vector.">csVector3</a>&amp; pos)
<a name="l00203"></a>00203   {
<a name="l00204"></a>00204     pos.<a class="code" href="classcsVector3.html#823fdba459ff91e8a5e6834ded7c815f" title="The X component of the vector.">x</a> = spline.GetInterpolatedDimension (6);
<a name="l00205"></a>00205     pos.<a class="code" href="classcsVector3.html#e0a74264b61eb5d61da63b3c101af719" title="The Y component of the vector.">y</a> = spline.GetInterpolatedDimension (7);
<a name="l00206"></a>00206     pos.<a class="code" href="classcsVector3.html#3f761bd195c7ccec59ea863a87a1ad05" title="The Z component of the vector.">z</a> = spline.GetInterpolatedDimension (8);
<a name="l00207"></a>00207   }
<a name="l00209"></a><a class="code" href="classcsPath.html#8bc98d6e146a3585fee56ee0f18cdd0e">00209</a>   <span class="keywordtype">float</span> <span class="keyword">const</span>* GetDimensionValues (<span class="keywordtype">int</span> dim)<span class="keyword"> const</span>
<a name="l00210"></a>00210 <span class="keyword">  </span>{
<a name="l00211"></a>00211     <span class="keywordflow">return</span> spline.GetDimensionValues(dim);
<a name="l00212"></a>00212   }
<a name="l00214"></a><a class="code" href="classcsPath.html#616194b67d44b47461af6e1f13a5cb9f">00214</a>   <span class="keywordtype">float</span> GetDimensionValue (<span class="keywordtype">int</span> dim, <span class="keywordtype">int</span> idx)<span class="keyword"> const</span>
<a name="l00215"></a>00215 <span class="keyword">  </span>{
<a name="l00216"></a>00216     <span class="keywordflow">return</span> spline.GetDimensionValue(dim, idx);
<a name="l00217"></a>00217   }
<a name="l00222"></a><a class="code" href="classcsPath.html#ec4be6eabfd41e02091ac394a319d646">00222</a>   <span class="keywordtype">void</span> InsertPoint (<span class="keywordtype">int</span> idx)
<a name="l00223"></a>00223   {
<a name="l00224"></a>00224     spline.InsertPoint(idx);
<a name="l00225"></a>00225   }
<a name="l00227"></a><a class="code" href="classcsPath.html#cbd00e6be47554f48f626ac1c57d552c">00227</a>   <span class="keywordtype">void</span> RemovePoint (<span class="keywordtype">int</span> idx)
<a name="l00228"></a>00228   {
<a name="l00229"></a>00229     spline.RemovePoint(idx);
<a name="l00230"></a>00230   }
<a name="l00231"></a>00231 };
<a name="l00232"></a>00232 
<a name="l00235"></a>00235 <span class="preprocessor">#endif // __CS_PATH_H__</span>
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