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<h1>TriangleSetConstraint Class Reference</h1>A translation <a class="el" href="classqglviewer_1_1Constraint.html">Constraint</a> defined with respect to a set of triangles.
<a href="#_details">More...</a>
<p>
Inherits <a class="el" href="classqglviewer_1_1Constraint.html">Constraint</a>.
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<a href="classqglviewer_1_1TriangleSetConstraint-members.html">List of all members.</a><table border=0 cellpadding=0 cellspacing=0>
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<tr><td colspan=2><br><h2>Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top> </td><td class="memItemRight" valign=bottom><a class="el" href="classqglviewer_1_1TriangleSetConstraint.html#a0">TriangleSetConstraint</a> ()</td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>virtual </td><td class="memItemRight" valign=bottom><a class="el" href="classqglviewer_1_1TriangleSetConstraint.html#a1">~TriangleSetConstraint</a> ()</td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>virtual void </td><td class="memItemRight" valign=bottom><a class="el" href="classqglviewer_1_1TriangleSetConstraint.html#a2">constrainTranslation</a> (<a class="el" href="classqglviewer_1_1Vec.html">Vec</a> &, <a class="el" href="classqglviewer_1_1Frame.html">Frame</a> *const)</td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>unsigned int </td><td class="memItemRight" valign=bottom><a class="el" href="classqglviewer_1_1TriangleSetConstraint.html#a3">addPoint</a> (const <a class="el" href="classqglviewer_1_1Vec.html">Vec</a> &p)</td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>unsigned int </td><td class="memItemRight" valign=bottom><a class="el" href="classqglviewer_1_1TriangleSetConstraint.html#a4">addTriangle</a> (const unsigned int i0, const unsigned int i1, const unsigned int i2)</td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>int </td><td class="memItemRight" valign=bottom><a class="el" href="classqglviewer_1_1TriangleSetConstraint.html#a5">indexOfPoint</a> (const <a class="el" href="classqglviewer_1_1Vec.html">Vec</a> &p) const</td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>unsigned int </td><td class="memItemRight" valign=bottom><a class="el" href="classqglviewer_1_1TriangleSetConstraint.html#a6">currentTriangle</a> () const</td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>void </td><td class="memItemRight" valign=bottom><a class="el" href="classqglviewer_1_1TriangleSetConstraint.html#a7">setCurrentTriangle</a> (const unsigned int ct)</td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>float </td><td class="memItemRight" valign=bottom><a class="el" href="classqglviewer_1_1TriangleSetConstraint.html#a8">epsilon</a> () const</td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>void </td><td class="memItemRight" valign=bottom><a class="el" href="classqglviewer_1_1TriangleSetConstraint.html#a9">setEpsilon</a> (const float e)</td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top><a class="el" href="classqglviewer_1_1Vec.html">Vec</a> </td><td class="memItemRight" valign=bottom><a class="el" href="classqglviewer_1_1TriangleSetConstraint.html#a10">point</a> (unsigned int index) const</td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>int </td><td class="memItemRight" valign=bottom><a class="el" href="classqglviewer_1_1TriangleSetConstraint.html#a11">neighTriangle</a> (unsigned int index, unsigned short edge) const</td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>unsigned int </td><td class="memItemRight" valign=bottom><a class="el" href="classqglviewer_1_1TriangleSetConstraint.html#a12">trianglePoint</a> (unsigned int index, unsigned short nb) const</td></tr>
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<hr><a name="_details"></a><h2>Detailed Description</h2>
A translation <a class="el" href="classqglviewer_1_1Constraint.html">Constraint</a> defined with respect to a set of triangles.
<p>
Define your path (connected set of triangles) using <a class="el" href="classqglviewer_1_1TriangleSetConstraint.html#a3">addPoint()</a> and <a class="el" href="classqglviewer_1_1TriangleSetConstraint.html#a4">addTriangle()</a>. The frame will then be constrained to move on this path.<p>
Development version. Many things need to be cleared.<p>
See <a href="../examples/triSetConstraint.html">triSetConstraint</a> for an illustration.
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<hr><h2>Constructor & Destructor Documentation</h2>
<a name="a0" doxytag="qglviewer::TriangleSetConstraint::TriangleSetConstraint"></a><p>
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<td class="md" nowrap valign="top"> <a class="el" href="classqglviewer_1_1TriangleSetConstraint.html">TriangleSetConstraint</a> </td>
<td class="md" valign="top">( </td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap><code> [inline]</code></td>
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Create an empty <a class="el" href="classqglviewer_1_1TriangleSetConstraint.html">TriangleSetConstraint</a>. <a class="el" href="classqglviewer_1_1TriangleSetConstraint.html#a6">currentTriangle()</a> set to 0. </td>
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<a name="a1" doxytag="qglviewer::TriangleSetConstraint::~TriangleSetConstraint"></a><p>
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<td class="md" nowrap valign="top"> virtual ~<a class="el" href="classqglviewer_1_1TriangleSetConstraint.html">TriangleSetConstraint</a> </td>
<td class="md" valign="top">( </td>
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Virtual empty destructor. </td>
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<hr><h2>Member Function Documentation</h2>
<a name="a3" doxytag="qglviewer::TriangleSetConstraint::addPoint"></a><p>
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<td class="md" nowrap valign="top"> unsigned int addPoint </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">const <a class="el" href="classqglviewer_1_1Vec.html">Vec</a> & </td>
<td class="mdname1" valign="top" nowrap> <em>p</em> </td>
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Add a point to the triangle set. Use <a class="el" href="classqglviewer_1_1TriangleSetConstraint.html#a4">addTriangle()</a> to create a triangle with this point. Returns the index of the point in the internal list.<p>
If this point is within a range of <a class="el" href="classqglviewer_1_1TriangleSetConstraint.html#a8">epsilon()</a> around an already entered point, the point is not added. The returned index is the one of the first point. See <a class="el" href="classqglviewer_1_1TriangleSetConstraint.html#a5">indexOfPoint()</a>. </td>
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<a name="a4" doxytag="qglviewer::TriangleSetConstraint::addTriangle"></a><p>
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<td class="md" nowrap valign="top"> unsigned int addTriangle </td>
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<td class="md" nowrap valign="top">const unsigned int </td>
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<td class="md" nowrap>const unsigned int </td>
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<td class="md" nowrap>const unsigned int </td>
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Add a triangle between the three points whose indexes are given. Point are added with <a class="el" href="classqglviewer_1_1TriangleSetConstraint.html#a3">addPoint()</a>, which returns their index. Returns the index of the created triangle (used by <a class="el" href="classqglviewer_1_1TriangleSetConstraint.html#a6">currentTriangle()</a>). </td>
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<a name="a2" doxytag="qglviewer::TriangleSetConstraint::constrainTranslation"></a><p>
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<td class="md" nowrap valign="top"> void constrainTranslation </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top"><a class="el" href="classqglviewer_1_1Vec.html">Vec</a> & </td>
<td class="mdname" nowrap> <em>trans</em>, </td>
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<td class="md" nowrap><a class="el" href="classqglviewer_1_1Frame.html">Frame</a> * </td>
<td class="mdname" nowrap> <em>const</em></td>
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<td class="md">) </td>
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Constrain the translation <code>trans</code> with respect to a path defined by a triangle set. See <a class="el" href="classqglviewer_1_1TriangleSetConstraint.html#a4">addTriangle()</a> and <a class="el" href="classqglviewer_1_1TriangleSetConstraint.html#a3">addPoint()</a>.
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Reimplemented from <a class="el" href="classqglviewer_1_1Constraint.html#a1">Constraint</a>. </td>
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<a name="a6" doxytag="qglviewer::TriangleSetConstraint::currentTriangle"></a><p>
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<td class="md" nowrap valign="top"> unsigned int currentTriangle </td>
<td class="md" valign="top">( </td>
<td class="mdname1" valign="top" nowrap> </td>
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The index of the triangle the frame is currently on. Changes as the frame moves on the triangle set. </td>
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<a name="a8" doxytag="qglviewer::TriangleSetConstraint::epsilon"></a><p>
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<td class="md" nowrap valign="top"> float epsilon </td>
<td class="md" valign="top">( </td>
<td class="mdname1" valign="top" nowrap> </td>
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The current value of epsilon, used to determine identical points in <a class="el" href="classqglviewer_1_1TriangleSetConstraint.html#a3">addPoint()</a>. </td>
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<a name="a5" doxytag="qglviewer::TriangleSetConstraint::indexOfPoint"></a><p>
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<td class="md" nowrap valign="top"> int indexOfPoint </td>
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<td class="mdname1" valign="top" nowrap> <em>p</em> </td>
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Returns the index of point <code>in</code> the point list. Returns -1 if not found. Two points are declared identical if their distance is lower or equal than <a class="el" href="classqglviewer_1_1TriangleSetConstraint.html#a8">epsilon()</a>. </td>
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<a name="a11" doxytag="qglviewer::TriangleSetConstraint::neighTriangle"></a><p>
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<td class="md" nowrap valign="top"> int neighTriangle </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">unsigned int </td>
<td class="mdname" nowrap> <em>index</em>, </td>
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<td class="md" nowrap>unsigned short </td>
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Returns the adjacent triangle of triangle <code>index</code>, along its edge <code>edge</code>. </td>
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<a name="a10" doxytag="qglviewer::TriangleSetConstraint::point"></a><p>
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<td class="md" nowrap valign="top"> <a class="el" href="classqglviewer_1_1Vec.html">Vec</a> point </td>
<td class="md" valign="top">( </td>
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<td class="mdname1" valign="top" nowrap> <em>index</em> </td>
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Returns the coordinates of the point at <code>index</code>. </td>
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<a name="a7" doxytag="qglviewer::TriangleSetConstraint::setCurrentTriangle"></a><p>
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<td class="md" nowrap valign="top"> void setCurrentTriangle </td>
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Use this function to initialize the constraint. You should give the index of the triangle the frame is currently on (use <a class="el" href="classqglviewer_1_1Frame.html#z33_1">Frame::setPosition()</a> to move the frame if needed). If the constraint is lost and <a class="el" href="classqglviewer_1_1TriangleSetConstraint.html#a6">currentTriangle()</a> is not valid, the frame will be positioned back to the center of the previous <a class="el" href="classqglviewer_1_1TriangleSetConstraint.html#a6">currentTriangle()</a>. </td>
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<a name="a9" doxytag="qglviewer::TriangleSetConstraint::setEpsilon"></a><p>
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<td class="md" nowrap valign="top"> void setEpsilon </td>
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Set the current value of epsilon, used to determine identical points in <a class="el" href="classqglviewer_1_1TriangleSetConstraint.html#a3">addPoint()</a>. Default value is 0.0. </td>
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<a name="a12" doxytag="qglviewer::TriangleSetConstraint::trianglePoint"></a><p>
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<td class="md" nowrap valign="top"> unsigned int trianglePoint </td>
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<td class="md" nowrap>unsigned short </td>
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Returns the index of the <code>nb</code> point of triangle <code>index</code>. </td>
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