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diff --git a/docs/doxygen/nel/a03271.html b/docs/doxygen/nel/a03271.html new file mode 100644 index 00000000..955f45f4 --- /dev/null +++ b/docs/doxygen/nel/a03271.html @@ -0,0 +1,412 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> +<html><head><meta http-equiv="Content-Type" content="text/html;charset=iso-8859-1"> +<title>NeL: NL3D::CQuadEffect class Reference</title> +<link href="doxygen.css" rel="stylesheet" type="text/css"> +</head><body> +<!-- Generated by Doxygen 1.3.6 --> +<div class="qindex"> <form class="search" action="search.php" method="get"> +<a class="qindex" href="main.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">Data Structures</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">Data Fields</a> | <a class="qindex" href="globals.html">Globals</a> | <a class="qindex" href="pages.html">Related Pages</a> | <span class="search"><u>S</u>earch for <input class="search" type="text" name="query" value="" size="20" accesskey="s"/></span></form></div> +<h1>NL3D::CQuadEffect Class Reference</h1><code>#include <<a class="el" href="a06299.html">quad_effect.h</a>></code> +<p> +<hr><a name="_details"></a><h2>Detailed Description</h2> +This class allow to create a sequence of small quads that tesselate a poly. <dl compact><dt><b>Author:</b></dt><dd>Nicolas Vizerie <p> +Nevrax France </dd></dl> +<dl compact><dt><b>Date:</b></dt><dd>2001 </dd></dl> + +<p> + +<p> +Definition at line <a class="el" href="a06299.html#l00046">46</a> of file <a class="el" href="a06299.html">quad_effect.h</a>.<table border=0 cellpadding=0 cellspacing=0> +<tr><td></td></tr> +<tr><td colspan=2><br><h2>Public Types</h2></td></tr> +<tr><td class="memItemLeft" nowrap align=right valign=top>typedef std::vector< <a class="el" href="a03660.html">NLMISC::CVector2f</a> > </td><td class="memItemRight" valign=bottom><a class="el" href="a03271.html#NL3D_1_1CQuadEffectw0">TPoint2DVect</a></td></tr> + +<tr><td class="mdescLeft"> </td><td class="mdescRight">a vector of 2d points <a href="#NL3D_1_1CQuadEffectw0"></a><br><br></td></tr> +<tr><td class="memItemLeft" nowrap align=right valign=top>typedef std::vector< std::pair<<br> + float, float > > </td><td class="memItemRight" valign=bottom><a class="el" href="a03271.html#NL3D_1_1CQuadEffectw1">TRasters</a></td></tr> + +<tr><td colspan=2><br><h2>Static Public Member Functions</h2></td></tr> +<tr><td class="memItemLeft" nowrap align=right valign=top>void </td><td class="memItemRight" valign=bottom><a class="el" href="a03271.html#NL3D_1_1CQuadEffecte0">makeRasters</a> (const <a class="el" href="a03271.html#NL3D_1_1CQuadEffectw0">TPoint2DVect</a> &poly, float quadWidth, float quadHeight, <a class="el" href="a03271.html#NL3D_1_1CQuadEffectw1">TRasters</a> &dest, float &startY)</td></tr> + +<tr><td class="memItemLeft" nowrap align=right valign=top>void </td><td class="memItemRight" valign=bottom><a class="el" href="a03271.html#NL3D_1_1CQuadEffecte1">processPoly</a> (const <a class="el" href="a03271.html#NL3D_1_1CQuadEffectw0">TPoint2DVect</a> &poly, float quadWidth, float quadHeight, <a class="el" href="a03271.html#NL3D_1_1CQuadEffectw0">TPoint2DVect</a> &dest)</td></tr> + +</table> +<hr><h2>Member Typedef Documentation</h2> +<a class="anchor" name="NL3D_1_1CQuadEffectw0" doxytag="NL3D::CQuadEffect::TPoint2DVect" ></a><p> +<table class="mdTable" width="100%" cellpadding="2" cellspacing="0"> + <tr> + <td class="mdRow"> + <table cellpadding="0" cellspacing="0" border="0"> + <tr> + <td class="md" nowrap valign="top"> typedef std::vector<<a class="el" href="a03660.html">NLMISC::CVector2f</a>> <a class="el" href="a03271.html#NL3D_1_1CQuadEffectw0">NL3D::CQuadEffect::TPoint2DVect</a> + </table> + </td> + </tr> +</table> +<table cellspacing=5 cellpadding=0 border=0> + <tr> + <td> + + </td> + <td> + +<p> +a vector of 2d points +<p> + +<p> +Definition at line <a class="el" href="a06299.html#l00050">50</a> of file <a class="el" href="a06299.html">quad_effect.h</a>. </td> + </tr> +</table> +<a class="anchor" name="NL3D_1_1CQuadEffectw1" doxytag="NL3D::CQuadEffect::TRasters" ></a><p> +<table class="mdTable" width="100%" cellpadding="2" cellspacing="0"> + <tr> + <td class="mdRow"> + <table cellpadding="0" cellspacing="0" border="0"> + <tr> + <td class="md" nowrap valign="top"> typedef std::vector< std::pair< float, float> > <a class="el" href="a03271.html#NL3D_1_1CQuadEffectw1">NL3D::CQuadEffect::TRasters</a> + </table> + </td> + </tr> +</table> +<table cellspacing=5 cellpadding=0 border=0> + <tr> + <td> + + </td> + <td> + +<p> + +<p> +Definition at line <a class="el" href="a06299.html#l00053">53</a> of file <a class="el" href="a06299.html">quad_effect.h</a>. +<p> +Referenced by <a class="el" href="a06298.html#l00061">makeRasters()</a>, and <a class="el" href="a06298.html#l00234">processPoly()</a>. </td> + </tr> +</table> +<hr><h2>Member Function Documentation</h2> +<a class="anchor" name="NL3D_1_1CQuadEffecte0" doxytag="NL3D::CQuadEffect::makeRasters" ></a><p> +<table class="mdTable" width="100%" cellpadding="2" cellspacing="0"> + <tr> + <td class="mdRow"> + <table cellpadding="0" cellspacing="0" border="0"> + <tr> + <td class="md" nowrap valign="top"> void NL3D::CQuadEffect::makeRasters </td> + <td class="md" valign="top">( </td> + <td class="md" nowrap valign="top">const <a class="el" href="a03271.html#NL3D_1_1CQuadEffectw0">TPoint2DVect</a> & </td> + <td class="mdname" nowrap> <em>poly</em>, </td> + </tr> + <tr> + <td class="md" nowrap align="right"></td> + <td></td> + <td class="md" nowrap>float </td> + <td class="mdname" nowrap> <em>quadWidth</em>, </td> + </tr> + <tr> + <td class="md" nowrap align="right"></td> + <td></td> + <td class="md" nowrap>float </td> + <td class="mdname" nowrap> <em>quadHeight</em>, </td> + </tr> + <tr> + <td class="md" nowrap align="right"></td> + <td></td> + <td class="md" nowrap><a class="el" href="a03271.html#NL3D_1_1CQuadEffectw1">TRasters</a> & </td> + <td class="mdname" nowrap> <em>dest</em>, </td> + </tr> + <tr> + <td class="md" nowrap align="right"></td> + <td></td> + <td class="md" nowrap>float & </td> + <td class="mdname" nowrap> <em>startY</em></td> + </tr> + <tr> + <td></td> + <td class="md">) </td> + <td class="md" colspan="2"><code> [static]</code></td> + </tr> + + </table> + </td> + </tr> +</table> +<table cellspacing=5 cellpadding=0 border=0> + <tr> + <td> + + </td> + <td> + +<p> +Make raters from the given clipped polygon. <dl compact><dt><b>Parameters:</b></dt><dd> + <table border="0" cellspacing="2" cellpadding="0"> + <tr><td valign=top><em>poly</em> </td><td>a polygon that describe the area where datas are taken from. </td></tr> + <tr><td valign=top><em>quadWidth</em> </td><td>width of the quad </td></tr> + <tr><td valign=top><em>quadHeight</em> </td><td>height of the quad </td></tr> + <tr><td valign=top><em>dest</em> </td><td>a vector that will be filled with the given rasters </td></tr> + <tr><td valign=top><em>startY</em> </td><td>will be filled with the start y position on screen</td></tr> + </table> +</dl> + +<p> +edge is in scope. compute its extreme positions so we need to intersect it with the y = currY and y = currY + quadHeight lines +<p> +Definition at line <a class="el" href="a06298.html#l00061">61</a> of file <a class="el" href="a06298.html">quad_effect.cpp</a>. +<p> +References <a class="el" href="a05484.html#l00038">min</a>, <a class="el" href="a05981.html#l00104">sint</a>, <a class="el" href="a05646.html#l00645">size</a>, <a class="el" href="a06298.html#l00058">NL3D::TEdgeList</a>, <a class="el" href="a06299.html#l00053">TRasters</a>, and <a class="el" href="a05981.html#l00105">uint</a>. +<p> +Referenced by <a class="el" href="a06298.html#l00234">processPoly()</a>. +<p> +<div class="fragment"><pre>00065 { +00066 +00067 dest.clear(); +00068 <span class="keyword">const</span> <span class="keywordtype">float</span> epsilon = 10E-5f; +00069 +00070 <a class="code" href="a04558.html#a14">sint</a> <a class="code" href="a04223.html#a587">size</a> = poly.size(); +00071 <a class="code" href="a04558.html#a15">uint</a> aelSize = 0; <span class="comment">// size of active edge list</span> +00072 +00073 <a class="code" href="a04558.html#a14">sint</a> k; <span class="comment">// loop counter</span> +00074 +00075 +00076 +00077 dest.clear(); +00078 +00079 <span class="keywordflow">if</span> (!<a class="code" href="a04223.html#a587">size</a>) <span class="keywordflow">return</span>; +00080 +00081 <span class="keyword">static</span> <a class="code" href="a05363.html#a275">TEdgeList</a> lel, ael; <span class="comment">// the left edge list, and the active edge list</span> +00082 <span class="keywordtype">float</span> highest = poly[0].y; +00083 lel.clear(); +00084 ael.clear(); +00085 +00087 +00088 <span class="keywordflow">for</span> (k = 0; k < <a class="code" href="a04223.html#a587">size</a>; ++k) +00089 { +00090 +00091 lel.push_front( +00092 CEdge(poly[k], poly[k == (size - 1) ? 0 : k + 1]) +00093 ); +00094 <span class="keywordflow">if</span> (poly[k].y < highest) { highest = poly[k].y; } +00095 } +00096 +00098 std::sort(lel.begin(), lel.end()); +00099 +00100 <span class="keywordtype">bool</span> borderFound; +00101 <span class="keywordtype">float</span> left, right, inter, diff; +00102 <span class="keywordtype">float</span> currY = highest; +00103 startY = highest; +00104 +00105 TEdgeList::iterator elIt; +00106 +00107 <span class="keywordflow">do</span> +00108 { +00110 <span class="keywordflow">while</span> (<a class="code" href="a04223.html#a587">size</a> +00111 && lel.begin()->P1.y < (currY + quadHeight) +00112 ) +00113 { +00114 ael.push_front(lel.front()); +00115 lel.pop_front(); +00116 --<a class="code" href="a04223.html#a587">size</a>; +00117 ++ aelSize; +00118 } +00119 +00120 <span class="keywordflow">if</span> (aelSize) +00121 { +00122 +00123 borderFound = <span class="keyword">false</span>; +00124 +00125 <span class="keywordflow">for</span> (elIt = ael.begin(); elIt != ael.end();) +00126 { +00127 <span class="keywordflow">if</span> (elIt->P2.y <= currY) +00128 { +00129 <span class="comment">// edge has gone out of active edge list</span> +00130 elIt = ael.erase(elIt); +00131 <span class="keywordflow">if</span> (! --aelSize) <span class="keywordflow">return</span>; +00132 <span class="keywordflow">continue</span>; +00133 } +00134 <span class="keywordflow">else</span> +00135 { +00136 +00141 +00142 <span class="keywordflow">if</span> (elIt->P1.y >= currY) +00143 { +00144 <span class="keywordflow">if</span> (!borderFound) +00145 { +00146 left = right = elIt->P1.x; +00147 borderFound = <span class="keyword">true</span>; +00148 } +00149 <span class="keywordflow">else</span> +00150 { +00151 left = <a class="code" href="a04061.html#a0">std::min</a>(left, elIt->P1.x); +00152 right = std::max(right, elIt->P1.x); +00153 } +00154 } +00155 <span class="keywordflow">else</span> +00156 { +00157 <span class="comment">// compute intersection</span> +00158 diff = elIt->P2.y - elIt->P1.y; +00159 <span class="keywordflow">if</span> (diff > epsilon) +00160 { +00161 inter = elIt->P1.x + (elIt->P2.x - elIt->P1.x) * (currY - elIt->P1.y) / diff; +00162 } +00163 <span class="keywordflow">else</span> +00164 { +00165 inter = elIt->P2.x; +00166 } +00167 +00168 <span class="keywordflow">if</span> (!borderFound) +00169 { +00170 left = right = inter; +00171 borderFound = <span class="keyword">true</span>; +00172 } +00173 <span class="keywordflow">else</span> +00174 { +00175 left = <a class="code" href="a04061.html#a0">std::min</a>(left, inter); +00176 right = std::max(right, inter); +00177 } +00178 } +00179 +00181 +00182 <span class="keywordflow">if</span> (elIt->P2.y <= currY + quadHeight) +00183 { +00184 <span class="keywordflow">if</span> (!borderFound) +00185 { +00186 left = right = elIt->P2.x; +00187 borderFound = <span class="keyword">true</span>; +00188 } +00189 <span class="keywordflow">else</span> +00190 { +00191 left = <a class="code" href="a04061.html#a0">std::min</a>(left, elIt->P2.x); +00192 right = std::max(right, elIt->P2.x); +00193 } +00194 } +00195 <span class="keywordflow">else</span> +00196 { +00197 <span class="comment">// compute intersection</span> +00198 diff = elIt->P2.y - elIt->P1.y; +00199 <span class="keywordflow">if</span> (diff > epsilon) +00200 { +00201 inter = elIt->P1.x + (elIt->P2.x - elIt->P1.x) * (currY + quadHeight - elIt->P1.y) / diff; +00202 } +00203 <span class="keywordflow">else</span> +00204 { +00205 inter = elIt->P2.x; +00206 } +00207 +00208 <span class="keywordflow">if</span> (!borderFound) +00209 { +00210 left = right = inter; +00211 borderFound = <span class="keyword">true</span>; +00212 } +00213 <span class="keywordflow">else</span> +00214 { +00215 left = <a class="code" href="a04061.html#a0">std::min</a>(left, inter); +00216 right = std::max(right, inter); +00217 } +00218 } +00219 +00220 } +00221 ++ elIt; +00222 } +00223 +00224 dest.push_back(std::make_pair(left, right)); +00225 } +00226 +00227 currY += quadHeight; +00228 +00229 } <span class="keywordflow">while</span> (<a class="code" href="a04223.html#a587">size</a> || aelSize); +00230 } +</pre></div> </td> + </tr> +</table> +<a class="anchor" name="NL3D_1_1CQuadEffecte1" doxytag="NL3D::CQuadEffect::processPoly" ></a><p> +<table class="mdTable" width="100%" cellpadding="2" cellspacing="0"> + <tr> + <td class="mdRow"> + <table cellpadding="0" cellspacing="0" border="0"> + <tr> + <td class="md" nowrap valign="top"> void NL3D::CQuadEffect::processPoly </td> + <td class="md" valign="top">( </td> + <td class="md" nowrap valign="top">const <a class="el" href="a03271.html#NL3D_1_1CQuadEffectw0">TPoint2DVect</a> & </td> + <td class="mdname" nowrap> <em>poly</em>, </td> + </tr> + <tr> + <td class="md" nowrap align="right"></td> + <td></td> + <td class="md" nowrap>float </td> + <td class="mdname" nowrap> <em>quadWidth</em>, </td> + </tr> + <tr> + <td class="md" nowrap align="right"></td> + <td></td> + <td class="md" nowrap>float </td> + <td class="mdname" nowrap> <em>quadHeight</em>, </td> + </tr> + <tr> + <td class="md" nowrap align="right"></td> + <td></td> + <td class="md" nowrap><a class="el" href="a03271.html#NL3D_1_1CQuadEffectw0">TPoint2DVect</a> & </td> + <td class="mdname" nowrap> <em>dest</em></td> + </tr> + <tr> + <td></td> + <td class="md">) </td> + <td class="md" colspan="2"><code> [static]</code></td> + </tr> + + </table> + </td> + </tr> +</table> +<table cellspacing=5 cellpadding=0 border=0> + <tr> + <td> + + </td> + <td> + +<p> +Tesselate the given clipped polygon , by using the given quad dimensions The coordinates of the poly are given in screen coordinate. <dl compact><dt><b>Parameters:</b></dt><dd> + <table border="0" cellspacing="2" cellpadding="0"> + <tr><td valign=top><em>poly</em> </td><td>a polygon that describe the area where datas are taken from. </td></tr> + <tr><td valign=top><em>quadWidth</em> </td><td>width of the quad </td></tr> + <tr><td valign=top><em>quadHeight</em> </td><td>height of the quad </td></tr> + <tr><td valign=top><em>dest</em> </td><td>a vector that will contains the pos of all the quads that cover the poly</td></tr> + </table> +</dl> + +<p> +Definition at line <a class="el" href="a06298.html#l00234">234</a> of file <a class="el" href="a06298.html">quad_effect.cpp</a>. +<p> +References <a class="el" href="a06298.html#l00061">makeRasters()</a>, <a class="el" href="a05981.html#l00104">sint</a>, and <a class="el" href="a06299.html#l00053">TRasters</a>. +<p> +<div class="fragment"><pre>00238 { +00239 <span class="keyword">static</span> <a class="code" href="a03271.html#NL3D_1_1CQuadEffectw1">TRasters</a> rDest; +00240 <span class="keywordtype">float</span> currY; +00241 <a class="code" href="a03271.html#NL3D_1_1CQuadEffecte0">makeRasters</a>(poly, quadWidth, quadHeight, rDest, currY); +00242 <span class="keywordflow">if</span> (dest.size()) +00243 { +00244 TRasters::const_iterator it, endIt = rDest.end(); +00245 <span class="keywordflow">for</span> (it = rDest.begin(); it != endIt; ++it) +00246 { +00247 <span class="keyword">const</span> <a class="code" href="a04558.html#a14">sint</a> nbQuad = (<a class="code" href="a04558.html#a14">sint</a>) ceilf( (it->second - it->first) / quadWidth); +00248 <span class="keywordtype">float</span> currX = it->first; +00249 <span class="keywordflow">for</span> (<a class="code" href="a04558.html#a14">sint</a> k = 0; k < nbQuad; ++k) +00250 { +00251 dest.push_back(<a class="code" href="a03660.html">NLMISC::CVector2f</a>(currX, currY)); +00252 currX += quadWidth; +00253 } +00254 currY += quadHeight; +00255 } +00256 } +00257 } +</pre></div> </td> + </tr> +</table> +<hr>The documentation for this class was generated from the following files:<ul> +<li><a class="el" href="a06299.html">quad_effect.h</a><li><a class="el" href="a06298.html">quad_effect.cpp</a></ul> +<hr size="1"><address style="align: right;"><small>Generated on Tue Mar 16 07:33:32 2004 for NeL by +<a href="http://www.doxygen.org/index.html"> +<img src="doxygen.png" alt="doxygen" align="middle" border=0 > +</a>1.3.6 </small></address> +</body> +</html> |