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<h1>csDIntersect3 Class Reference<br>
<small>
[<a class="el" href="group__geom__utils.html">Geometry utilities</a>]</small>
</h1><!-- doxytag: class="csDIntersect3" -->Some functions to perform various intersection calculations with 3D line segments.
<a href="#_details">More...</a>
<p>
<code>#include <<a class="el" href="math3d__d_8h-source.html">csgeom/math3d_d.h</a>></code>
<p>
<p>
<a href="classcsDIntersect3-members.html">List of all members.</a><table border="0" cellpadding="0" cellspacing="0">
<tr><td></td></tr>
<tr><td colspan="2"><br><h2>Static Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">static bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classcsDIntersect3.html#d2a9df5d1039e29f1b83c3743a4fdfbb">Plane</a> (const <a class="el" href="classcsDVector3.html">csDVector3</a> &u, const <a class="el" href="classcsDVector3.html">csDVector3</a> &v, const <a class="el" href="classcsDPlane.html">csDPlane</a> &p, <a class="el" href="classcsDVector3.html">csDVector3</a> &isect, double &dist)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Intersect a 3D segment with a plane. <a href="#d2a9df5d1039e29f1b83c3743a4fdfbb"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">static bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classcsDIntersect3.html#fdd04145593c11388cbbcc46f48d77c1">Plane</a> (const <a class="el" href="classcsDVector3.html">csDVector3</a> &u, const <a class="el" href="classcsDVector3.html">csDVector3</a> &v, double A, double B, double C, double D, <a class="el" href="classcsDVector3.html">csDVector3</a> &isect, double &dist)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Intersect a 3D segment with a plane. <a href="#fdd04145593c11388cbbcc46f48d77c1"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">static void </td><td class="memItemRight" valign="bottom"><a class="el" href="classcsDIntersect3.html#b72491fd0c9414104e0f4a68714449f6">Plane</a> (const <a class="el" href="classcsDVector3.html">csDVector3</a> &u, const <a class="el" href="classcsDVector3.html">csDVector3</a> &v, const <a class="el" href="classcsDVector3.html">csDVector3</a> &normal, const <a class="el" href="classcsDVector3.html">csDVector3</a> &a, <a class="el" href="classcsDVector3.html">csDVector3</a> &isect)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Intersect a 3D segment with a plane. <a href="#b72491fd0c9414104e0f4a68714449f6"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">static bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classcsDIntersect3.html#936caad70304674285929fcb6fd0de82">Planes</a> (const <a class="el" href="classcsDPlane.html">csDPlane</a> &p1, const <a class="el" href="classcsDPlane.html">csDPlane</a> &p2, const <a class="el" href="classcsDPlane.html">csDPlane</a> &p3, <a class="el" href="classcsDVector3.html">csDVector3</a> &isect)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Intersect 3 planes, to get the point that is part of all three planes. <a href="#936caad70304674285929fcb6fd0de82"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">static double </td><td class="memItemRight" valign="bottom"><a class="el" href="classcsDIntersect3.html#0d6c4d29287a57ceb13b89d733d6f5fd">XFrustum</a> (double A, const <a class="el" href="classcsDVector3.html">csDVector3</a> &u, const <a class="el" href="classcsDVector3.html">csDVector3</a> &v, <a class="el" href="classcsDVector3.html">csDVector3</a> &isect)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Intersect a 3D segment with the frustum plane Ax + z = 0. <a href="#0d6c4d29287a57ceb13b89d733d6f5fd"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">static double </td><td class="memItemRight" valign="bottom"><a class="el" href="classcsDIntersect3.html#bd55b67ef0955e2c936059f3c105c072">YFrustum</a> (double B, const <a class="el" href="classcsDVector3.html">csDVector3</a> &u, const <a class="el" href="classcsDVector3.html">csDVector3</a> &v, <a class="el" href="classcsDVector3.html">csDVector3</a> &isect)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Intersect a 3D segment with the frustum plane By + z = 0. <a href="#bd55b67ef0955e2c936059f3c105c072"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">static double </td><td class="memItemRight" valign="bottom"><a class="el" href="classcsDIntersect3.html#298fdb80a8b985dd0fd64a5e5c9f207f">Z0Plane</a> (const <a class="el" href="classcsDVector3.html">csDVector3</a> &u, const <a class="el" href="classcsDVector3.html">csDVector3</a> &v, <a class="el" href="classcsDVector3.html">csDVector3</a> &isect)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Intersect a 3D segment with the z = 0 plane. <a href="#298fdb80a8b985dd0fd64a5e5c9f207f"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">static double </td><td class="memItemRight" valign="bottom"><a class="el" href="classcsDIntersect3.html#ce4eee79acddb020de3f59d03f7e203a">ZPlane</a> (double zval, const <a class="el" href="classcsDVector3.html">csDVector3</a> &u, const <a class="el" href="classcsDVector3.html">csDVector3</a> &v, <a class="el" href="classcsDVector3.html">csDVector3</a> &isect)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Intersect a 3D segment with the plane z = zval. <a href="#ce4eee79acddb020de3f59d03f7e203a"></a><br></td></tr>
</table>
<hr><a name="_details"></a><h2>Detailed Description</h2>
Some functions to perform various intersection calculations with 3D line segments.
<p>
This is a static class and contains only static member functions.
<p>Definition at line <a class="el" href="math3d__d_8h-source.html#l00599">599</a> of file <a class="el" href="math3d__d_8h-source.html">math3d_d.h</a>.</p>
<hr><h2>Member Function Documentation</h2>
<a class="anchor" name="d2a9df5d1039e29f1b83c3743a4fdfbb"></a><!-- doxytag: member="csDIntersect3::Plane" ref="d2a9df5d1039e29f1b83c3743a4fdfbb" args="(const csDVector3 &u, const csDVector3 &v, const csDPlane &p, csDVector3 &isect, double &dist)" -->
<div class="memitem">
<div class="memproto">
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<td class="memname">static bool csDIntersect3::Plane </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="classcsDVector3.html">csDVector3</a> & </td>
<td class="paramname"> <em>u</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="classcsDVector3.html">csDVector3</a> & </td>
<td class="paramname"> <em>v</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="classcsDPlane.html">csDPlane</a> & </td>
<td class="paramname"> <em>p</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="classcsDVector3.html">csDVector3</a> & </td>
<td class="paramname"> <em>isect</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">double & </td>
<td class="paramname"> <em>dist</em></td><td> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td width="100%"><code> [static]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
Intersect a 3D segment with a plane.
<p>
Returns true if there is an intersection, with the intersection point returned in isect. The distance from u to the intersection point is returned in dist. The distance that is returned is a normalized distance with respect to the given input vector. i.e. a distance of 0.5 means that the intersection point is halfway u and v.
</div>
</div><p>
<a class="anchor" name="fdd04145593c11388cbbcc46f48d77c1"></a><!-- doxytag: member="csDIntersect3::Plane" ref="fdd04145593c11388cbbcc46f48d77c1" args="(const csDVector3 &u, const csDVector3 &v, double A, double B, double C, double D, csDVector3 &isect, double &dist)" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
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<td class="memname">static bool csDIntersect3::Plane </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="classcsDVector3.html">csDVector3</a> & </td>
<td class="paramname"> <em>u</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="classcsDVector3.html">csDVector3</a> & </td>
<td class="paramname"> <em>v</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">double </td>
<td class="paramname"> <em>A</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">double </td>
<td class="paramname"> <em>B</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">double </td>
<td class="paramname"> <em>C</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">double </td>
<td class="paramname"> <em>D</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="classcsDVector3.html">csDVector3</a> & </td>
<td class="paramname"> <em>isect</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">double & </td>
<td class="paramname"> <em>dist</em></td><td> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td width="100%"><code> [static]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
Intersect a 3D segment with a plane.
<p>
Returns true if there is an intersection, with the intersection point returned in isect. The distance from u to the intersection point is returned in dist. The distance that is returned is a normalized distance with respect to the given input vector. i.e. a distance of 0.5 means that the intersection point is halfway u and v.
</div>
</div><p>
<a class="anchor" name="b72491fd0c9414104e0f4a68714449f6"></a><!-- doxytag: member="csDIntersect3::Plane" ref="b72491fd0c9414104e0f4a68714449f6" args="(const csDVector3 &u, const csDVector3 &v, const csDVector3 &normal, const csDVector3 &a, csDVector3 &isect)" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
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<td class="memname">static void csDIntersect3::Plane </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="classcsDVector3.html">csDVector3</a> & </td>
<td class="paramname"> <em>u</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="classcsDVector3.html">csDVector3</a> & </td>
<td class="paramname"> <em>v</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="classcsDVector3.html">csDVector3</a> & </td>
<td class="paramname"> <em>normal</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="classcsDVector3.html">csDVector3</a> & </td>
<td class="paramname"> <em>a</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="classcsDVector3.html">csDVector3</a> & </td>
<td class="paramname"> <em>isect</em></td><td> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td width="100%"><code> [static]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
Intersect a 3D segment with a plane.
<p>
Returns true if there is an intersection, with the intersection point returned in isect.
</div>
</div><p>
<a class="anchor" name="936caad70304674285929fcb6fd0de82"></a><!-- doxytag: member="csDIntersect3::Planes" ref="936caad70304674285929fcb6fd0de82" args="(const csDPlane &p1, const csDPlane &p2, const csDPlane &p3, csDVector3 &isect)" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
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<td class="memname">static bool csDIntersect3::Planes </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="classcsDPlane.html">csDPlane</a> & </td>
<td class="paramname"> <em>p1</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="classcsDPlane.html">csDPlane</a> & </td>
<td class="paramname"> <em>p2</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="classcsDPlane.html">csDPlane</a> & </td>
<td class="paramname"> <em>p3</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="classcsDVector3.html">csDVector3</a> & </td>
<td class="paramname"> <em>isect</em></td><td> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td width="100%"><code> [static]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
Intersect 3 planes, to get the point that is part of all three planes.
<p>
Returns true, if there is a single point that fits. If some planes are parallel, then it will return false.
</div>
</div><p>
<a class="anchor" name="0d6c4d29287a57ceb13b89d733d6f5fd"></a><!-- doxytag: member="csDIntersect3::XFrustum" ref="0d6c4d29287a57ceb13b89d733d6f5fd" args="(double A, const csDVector3 &u, const csDVector3 &v, csDVector3 &isect)" -->
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<td class="memname">static double csDIntersect3::XFrustum </td>
<td>(</td>
<td class="paramtype">double </td>
<td class="paramname"> <em>A</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="classcsDVector3.html">csDVector3</a> & </td>
<td class="paramname"> <em>u</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="classcsDVector3.html">csDVector3</a> & </td>
<td class="paramname"> <em>v</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="classcsDVector3.html">csDVector3</a> & </td>
<td class="paramname"> <em>isect</em></td><td> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td width="100%"><code> [static]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
Intersect a 3D segment with the frustum plane Ax + z = 0.
<p>
Assumes an intersection, and returns the intersection point in isect.
</div>
</div><p>
<a class="anchor" name="bd55b67ef0955e2c936059f3c105c072"></a><!-- doxytag: member="csDIntersect3::YFrustum" ref="bd55b67ef0955e2c936059f3c105c072" args="(double B, const csDVector3 &u, const csDVector3 &v, csDVector3 &isect)" -->
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<td class="memname">static double csDIntersect3::YFrustum </td>
<td>(</td>
<td class="paramtype">double </td>
<td class="paramname"> <em>B</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="classcsDVector3.html">csDVector3</a> & </td>
<td class="paramname"> <em>u</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="classcsDVector3.html">csDVector3</a> & </td>
<td class="paramname"> <em>v</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="classcsDVector3.html">csDVector3</a> & </td>
<td class="paramname"> <em>isect</em></td><td> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td width="100%"><code> [static]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
Intersect a 3D segment with the frustum plane By + z = 0.
<p>
Assumes an intersection, and returns the intersection point in isect.
</div>
</div><p>
<a class="anchor" name="298fdb80a8b985dd0fd64a5e5c9f207f"></a><!-- doxytag: member="csDIntersect3::Z0Plane" ref="298fdb80a8b985dd0fd64a5e5c9f207f" args="(const csDVector3 &u, const csDVector3 &v, csDVector3 &isect)" -->
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<td class="memname">static double csDIntersect3::Z0Plane </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="classcsDVector3.html">csDVector3</a> & </td>
<td class="paramname"> <em>u</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="classcsDVector3.html">csDVector3</a> & </td>
<td class="paramname"> <em>v</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="classcsDVector3.html">csDVector3</a> & </td>
<td class="paramname"> <em>isect</em></td><td> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td width="100%"><code> [static]</code></td>
</tr>
</table>
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<div class="memdoc">
<p>
Intersect a 3D segment with the z = 0 plane.
<p>
Assumes that there is an intersection (fails if the segment is parallel to the plane), and returns the distance from u to the intersection point. The intersection point is returned in isect.
</div>
</div><p>
<a class="anchor" name="ce4eee79acddb020de3f59d03f7e203a"></a><!-- doxytag: member="csDIntersect3::ZPlane" ref="ce4eee79acddb020de3f59d03f7e203a" args="(double zval, const csDVector3 &u, const csDVector3 &v, csDVector3 &isect)" -->
<div class="memitem">
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<td class="memname">static double csDIntersect3::ZPlane </td>
<td>(</td>
<td class="paramtype">double </td>
<td class="paramname"> <em>zval</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="classcsDVector3.html">csDVector3</a> & </td>
<td class="paramname"> <em>u</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="classcsDVector3.html">csDVector3</a> & </td>
<td class="paramname"> <em>v</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="classcsDVector3.html">csDVector3</a> & </td>
<td class="paramname"> <em>isect</em></td><td> </td>
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<td>)</td>
<td></td><td></td><td width="100%"><code> [static]</code></td>
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<p>
Intersect a 3D segment with the plane z = zval.
<p>
Assumes that there is an intersection (fails if the segment is parallel to the plane), and returns the distance from u to the intersection point. The intersection point is returned in isect.
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<hr>The documentation for this class was generated from the following file:<ul>
<li>csgeom/<a class="el" href="math3d__d_8h-source.html">math3d_d.h</a></ul>
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