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<title>Ipelib: ipe::Curve Class Reference</title>
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<li><a href="annotated.html"><span>Class List</span></a></li>
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<li><a href="functions.html"><span>Class Members</span></a></li>
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<div class="navpath"><a class="el" href="namespaceipe.html">ipe</a>::<a class="el" href="classipe_1_1_curve.html">Curve</a>
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<div class="contents">
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<h1>ipe::Curve Class Reference<br/>
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[<a class="el" href="group__geo.html">Ipe Geometry</a>]</small>
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</h1><!-- doxytag: class="ipe::Curve" --><!-- doxytag: inherits="ipe::SubPath" -->
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<p>Subpath consisting of a sequence of CurveSegment's.
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<a href="#_details">More...</a></p>
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<p><code>#include <ipeshape.h></code></p>
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<p>Inherits <a class="el" href="classipe_1_1_sub_path.html">ipe::SubPath</a>.</p>
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<p><a href="classipe_1_1_curve-members.html">List of all members.</a></p>
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<h2>Public Member Functions</h2>
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<li><a class="el" href="classipe_1_1_curve.html#acf7a848ad3b0e6a7931bf962941594bc">Curve</a> ()
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<li>virtual <a class="el" href="classipe_1_1_sub_path.html#ad17bc5b4ed674c253cd81049d7fe1551">Type</a> <a class="el" href="classipe_1_1_curve.html#a005753e2c6ff30c126cc74f77773c2c1">type</a> () const
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<li>virtual bool <a class="el" href="classipe_1_1_curve.html#a8be05768f0f7c8f39e82c3152c804b40">closed</a> () const
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<li>virtual const <a class="el" href="classipe_1_1_curve.html">Curve</a> * <a class="el" href="classipe_1_1_curve.html#a0f1f616eb50eee108999b479324438e0">asCurve</a> () const
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<li>virtual void <a class="el" href="classipe_1_1_curve.html#a3b8d5f90cd4f6a41d3b7c0108180c4b3">save</a> (<a class="el" href="classipe_1_1_stream.html">Stream</a> &stream) const
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<li>virtual void <a class="el" href="classipe_1_1_curve.html#ad55967b48564f6359f3892664c8d1e85">draw</a> (<a class="el" href="classipe_1_1_painter.html">Painter</a> &painter) const
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<li>virtual void <a class="el" href="classipe_1_1_curve.html#a4f21270dd069018f5c36c11dc398b218">addToBBox</a> (<a class="el" href="classipe_1_1_rect.html">Rect</a> &box, const <a class="el" href="classipe_1_1_matrix.html">Matrix</a> &m, bool cp) const
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<li>virtual double <a class="el" href="classipe_1_1_curve.html#a7ead7c3d4c6162d591be200b6d701be1">distance</a> (const <a class="el" href="classipe_1_1_vector.html">Vector</a> &v, const <a class="el" href="classipe_1_1_matrix.html">Matrix</a> &m, double bound) const
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<li>virtual void <a class="el" href="classipe_1_1_curve.html#adf58b6fcd607adcc8dfc56b244804a2e">snapVtx</a> (const <a class="el" href="classipe_1_1_vector.html">Vector</a> &mouse, const <a class="el" href="classipe_1_1_matrix.html">Matrix</a> &m, <a class="el" href="classipe_1_1_vector.html">Vector</a> &pos, double &bound) const
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<li>virtual void <a class="el" href="classipe_1_1_curve.html#a3f8028ef7420ada1c9e2bdfdce9664fc">snapBnd</a> (const <a class="el" href="classipe_1_1_vector.html">Vector</a> &mouse, const <a class="el" href="classipe_1_1_matrix.html">Matrix</a> &m, <a class="el" href="classipe_1_1_vector.html">Vector</a> &pos, double &bound) const
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<li>int <a class="el" href="classipe_1_1_curve.html#a00fcca2ac9bc4f12483402d0adf89c7a">countSegments</a> () const
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<li><a class="el" href="classipe_1_1_curve_segment.html">CurveSegment</a> <a class="el" href="classipe_1_1_curve.html#a16df1dc51f102100684c708677262ae3">segment</a> (int i) const
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<li><a class="el" href="classipe_1_1_curve_segment.html">CurveSegment</a> <a class="el" href="classipe_1_1_curve.html#a43076f4f28bdc6685ce9cd8f4e805e94">closingSegment</a> (<a class="el" href="classipe_1_1_vector.html">Vector</a> u[2]) const
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<li>void <a class="el" href="classipe_1_1_curve.html#a176acb526a0608ba486951300e48b2c4">appendSegment</a> (const <a class="el" href="classipe_1_1_vector.html">Vector</a> &v0, const <a class="el" href="classipe_1_1_vector.html">Vector</a> &v1)
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<li>void <a class="el" href="classipe_1_1_curve.html#a8b6ead7f1adf212eea2578233ced07cb">appendArc</a> (const <a class="el" href="classipe_1_1_matrix.html">Matrix</a> &m, const <a class="el" href="classipe_1_1_vector.html">Vector</a> &v0, const <a class="el" href="classipe_1_1_vector.html">Vector</a> &v1)
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<li>void <a class="el" href="classipe_1_1_curve.html#a62e0ec7e6fc58f8cc2f0e9bda52693ea">appendQuad</a> (const <a class="el" href="classipe_1_1_vector.html">Vector</a> &v0, const <a class="el" href="classipe_1_1_vector.html">Vector</a> &v1, const <a class="el" href="classipe_1_1_vector.html">Vector</a> &v2)
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<li>void <a class="el" href="classipe_1_1_curve.html#a6b1bc6ab4107ec11ce39b1f7349cf2db">appendBezier</a> (const <a class="el" href="classipe_1_1_vector.html">Vector</a> &v0, const <a class="el" href="classipe_1_1_vector.html">Vector</a> &v1, const <a class="el" href="classipe_1_1_vector.html">Vector</a> &v2, const <a class="el" href="classipe_1_1_vector.html">Vector</a> &v3)
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<li>void <a class="el" href="classipe_1_1_curve.html#a53a567aa81814b8a97f6b68a9508a8d2">appendSpline</a> (const std::vector< <a class="el" href="classipe_1_1_vector.html">Vector</a> > &v)
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<li>void <a class="el" href="classipe_1_1_curve.html#a8faa181d1b28453e7e6d456d36f090bd">setClosed</a> (bool closed)
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<hr/><a name="_details"></a><h2>Detailed Description</h2>
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<p>Subpath consisting of a sequence of CurveSegment's. </p>
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<hr/><h2>Constructor & Destructor Documentation</h2>
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<a class="anchor" id="acf7a848ad3b0e6a7931bf962941594bc"></a><!-- doxytag: member="ipe::Curve::Curve" ref="acf7a848ad3b0e6a7931bf962941594bc" args="()" -->
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<div class="memproto">
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<td class="memname">Curve::Curve </td>
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<td class="paramname"></td>
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<td> ) </td>
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<p>Create an empty, open subpath. </p>
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<hr/><h2>Member Function Documentation</h2>
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<a class="anchor" id="a005753e2c6ff30c126cc74f77773c2c1"></a><!-- doxytag: member="ipe::Curve::type" ref="a005753e2c6ff30c126cc74f77773c2c1" args="() const " -->
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<td class="memname"><a class="el" href="classipe_1_1_sub_path.html#ad17bc5b4ed674c253cd81049d7fe1551">SubPath::Type</a> Curve::type </td>
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<td class="paramname"></td>
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<td> ) </td>
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<td> const<code> [virtual]</code></td>
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<p>Return type of this subpath. </p>
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<p>Implements <a class="el" href="classipe_1_1_sub_path.html#a1cf726cc8bf16151eb8a2f36a733507a">ipe::SubPath</a>.</p>
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<a class="anchor" id="a8be05768f0f7c8f39e82c3152c804b40"></a><!-- doxytag: member="ipe::Curve::closed" ref="a8be05768f0f7c8f39e82c3152c804b40" args="() const " -->
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<td class="memname">virtual bool ipe::Curve::closed </td>
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<td class="paramname"></td>
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<td> ) </td>
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<td> const<code> [inline, virtual]</code></td>
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<p>Is this subpath closed? </p>
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<p>Default implementation returns <code>true</code>. </p>
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<p>Reimplemented from <a class="el" href="classipe_1_1_sub_path.html#a76f0bcfa6de33d0cd01b6d62d61b0bc9">ipe::SubPath</a>.</p>
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<a class="anchor" id="a0f1f616eb50eee108999b479324438e0"></a><!-- doxytag: member="ipe::Curve::asCurve" ref="a0f1f616eb50eee108999b479324438e0" args="() const " -->
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<td class="memname">const <a class="el" href="classipe_1_1_curve.html">Curve</a> * Curve::asCurve </td>
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<td class="paramname"></td>
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<td> ) </td>
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<td> const<code> [virtual]</code></td>
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<p>Return this object as an <a class="el" href="classipe_1_1_curve.html" title="Subpath consisting of a sequence of CurveSegment's.">Curve</a>, or else 0. </p>
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<p>Reimplemented from <a class="el" href="classipe_1_1_sub_path.html#a52ea0a774eedf20b2e498f88879b696d">ipe::SubPath</a>.</p>
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<a class="anchor" id="a3b8d5f90cd4f6a41d3b7c0108180c4b3"></a><!-- doxytag: member="ipe::Curve::save" ref="a3b8d5f90cd4f6a41d3b7c0108180c4b3" args="(Stream &stream) const " -->
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<td class="memname">void Curve::save </td>
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<td class="paramtype"><a class="el" href="classipe_1_1_stream.html">Stream</a> & </td>
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<td class="paramname"> <em>stream</em></td>
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<td> ) </td>
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<td> const<code> [virtual]</code></td>
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<p>Save subpath to XML stream. </p>
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<p>Implements <a class="el" href="classipe_1_1_sub_path.html#a3fa5c6e90febc2f0a2094f32b1fdb3d6">ipe::SubPath</a>.</p>
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<a class="anchor" id="ad55967b48564f6359f3892664c8d1e85"></a><!-- doxytag: member="ipe::Curve::draw" ref="ad55967b48564f6359f3892664c8d1e85" args="(Painter &painter) const " -->
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<td class="memname">void Curve::draw </td>
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<td class="paramtype"><a class="el" href="classipe_1_1_painter.html">Painter</a> & </td>
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<td class="paramname"> <em>painter</em></td>
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<td> ) </td>
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<td> const<code> [virtual]</code></td>
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<p>Draw subpath (does not call drawPath()). </p>
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<p>Implements <a class="el" href="classipe_1_1_sub_path.html#aec23897c9f8d87909af871f9f8c9c804">ipe::SubPath</a>.</p>
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<a class="anchor" id="a4f21270dd069018f5c36c11dc398b218"></a><!-- doxytag: member="ipe::Curve::addToBBox" ref="a4f21270dd069018f5c36c11dc398b218" args="(Rect &box, const Matrix &m, bool cp) const " -->
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<td class="memname">void Curve::addToBBox </td>
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<td class="paramtype"><a class="el" href="classipe_1_1_rect.html">Rect</a> & </td>
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<td class="paramname"> <em>box</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype">const <a class="el" href="classipe_1_1_matrix.html">Matrix</a> & </td>
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<td class="paramname"> <em>m</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype">bool </td>
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<td class="paramname"> <em>cp</em></td><td> </td>
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<td></td><td></td><td> const<code> [virtual]</code></td>
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<p>Add subpath to box. </p>
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<p>Implements <a class="el" href="classipe_1_1_sub_path.html#a65ab673650266f8b33d5a57d187f4c4e">ipe::SubPath</a>.</p>
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<a class="anchor" id="a7ead7c3d4c6162d591be200b6d701be1"></a><!-- doxytag: member="ipe::Curve::distance" ref="a7ead7c3d4c6162d591be200b6d701be1" args="(const Vector &v, const Matrix &m, double bound) const " -->
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<td class="memname">double Curve::distance </td>
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<td class="paramtype">const <a class="el" href="classipe_1_1_vector.html">Vector</a> & </td>
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<td class="paramname"> <em>v</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype">const <a class="el" href="classipe_1_1_matrix.html">Matrix</a> & </td>
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<td class="paramname"> <em>m</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype">double </td>
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<td class="paramname"> <em>bound</em></td><td> </td>
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<td></td><td></td><td> const<code> [virtual]</code></td>
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<p>Return distance from <em>v</em> to subpath transformed by <em>m</em>. </p>
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<p>Implements <a class="el" href="classipe_1_1_sub_path.html#a830bce7339770adce1beb9d46930a61b">ipe::SubPath</a>.</p>
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<a class="anchor" id="adf58b6fcd607adcc8dfc56b244804a2e"></a><!-- doxytag: member="ipe::Curve::snapVtx" ref="adf58b6fcd607adcc8dfc56b244804a2e" args="(const Vector &mouse, const Matrix &m, Vector &pos, double &bound) const " -->
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<td class="memname">void Curve::snapVtx </td>
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<td class="paramtype">const <a class="el" href="classipe_1_1_vector.html">Vector</a> & </td>
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<td class="paramname"> <em>mouse</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype">const <a class="el" href="classipe_1_1_matrix.html">Matrix</a> & </td>
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<td class="paramname"> <em>m</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype"><a class="el" href="classipe_1_1_vector.html">Vector</a> & </td>
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<td class="paramname"> <em>pos</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype">double & </td>
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<td class="paramname"> <em>bound</em></td><td> </td>
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<td></td><td></td><td> const<code> [virtual]</code></td>
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<p><a class="el" href="classipe_1_1_snap.html" title="Performs snapping operations, and stores snapping state.">Snap</a> to vertex. </p>
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<p>Implements <a class="el" href="classipe_1_1_sub_path.html#a9012f567225b77eafdfcf543ae9ab60a">ipe::SubPath</a>.</p>
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<a class="anchor" id="a3f8028ef7420ada1c9e2bdfdce9664fc"></a><!-- doxytag: member="ipe::Curve::snapBnd" ref="a3f8028ef7420ada1c9e2bdfdce9664fc" args="(const Vector &mouse, const Matrix &m, Vector &pos, double &bound) const " -->
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<td class="memname">void Curve::snapBnd </td>
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<td class="paramtype">const <a class="el" href="classipe_1_1_vector.html">Vector</a> & </td>
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<td class="paramname"> <em>mouse</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype">const <a class="el" href="classipe_1_1_matrix.html">Matrix</a> & </td>
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<td class="paramname"> <em>m</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype"><a class="el" href="classipe_1_1_vector.html">Vector</a> & </td>
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<td class="paramname"> <em>pos</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype">double & </td>
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<td class="paramname"> <em>bound</em></td><td> </td>
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<td></td><td></td><td> const<code> [virtual]</code></td>
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<p><a class="el" href="classipe_1_1_snap.html" title="Performs snapping operations, and stores snapping state.">Snap</a> to boundary of subpath. </p>
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<p>Implements <a class="el" href="classipe_1_1_sub_path.html#a19913177fdd50b8fe276e6c6313b569a">ipe::SubPath</a>.</p>
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<a class="anchor" id="a00fcca2ac9bc4f12483402d0adf89c7a"></a><!-- doxytag: member="ipe::Curve::countSegments" ref="a00fcca2ac9bc4f12483402d0adf89c7a" args="() const " -->
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<td class="memname">int ipe::Curve::countSegments </td>
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<td class="paramname"></td>
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<td> ) </td>
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<td> const<code> [inline]</code></td>
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<p>Return number of segments. This does not include the closing segment for a closed path. </p>
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<a class="anchor" id="a16df1dc51f102100684c708677262ae3"></a><!-- doxytag: member="ipe::Curve::segment" ref="a16df1dc51f102100684c708677262ae3" args="(int i) const " -->
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<td class="memname"><a class="el" href="classipe_1_1_curve_segment.html">CurveSegment</a> Curve::segment </td>
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<td class="paramtype">int </td>
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<td class="paramname"> <em>i</em></td>
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<td> ) </td>
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<p>Return segment. </p>
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<p>If <em>i</em> is negative, elements from the end are returned. The closing segment of a closed path is not accessible this way (use <a class="el" href="classipe_1_1_curve.html#a43076f4f28bdc6685ce9cd8f4e805e94" title="Returns the closing segment of a closed path.">closingSegment()</a> instead)! </p>
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<a class="anchor" id="a43076f4f28bdc6685ce9cd8f4e805e94"></a><!-- doxytag: member="ipe::Curve::closingSegment" ref="a43076f4f28bdc6685ce9cd8f4e805e94" args="(Vector u[2]) const " -->
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<td class="memname"><a class="el" href="classipe_1_1_curve_segment.html">CurveSegment</a> Curve::closingSegment </td>
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<td class="paramtype"><a class="el" href="classipe_1_1_vector.html">Vector</a> </td>
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<td class="paramname"> <em>u</em>[2]</td>
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<td> ) </td>
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<p>Returns the closing segment of a closed path. </p>
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<p>Since the closing segment isn't actually stored inside this object, you have to provide a length-2 vector for the control points.</p>
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<p>This method panics if the <a class="el" href="classipe_1_1_curve.html" title="Subpath consisting of a sequence of CurveSegment's.">Curve</a> is not closed. </p>
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<a class="anchor" id="a176acb526a0608ba486951300e48b2c4"></a><!-- doxytag: member="ipe::Curve::appendSegment" ref="a176acb526a0608ba486951300e48b2c4" args="(const Vector &v0, const Vector &v1)" -->
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<td class="memname">void Curve::appendSegment </td>
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<td class="paramtype">const <a class="el" href="classipe_1_1_vector.html">Vector</a> & </td>
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<td class="paramname"> <em>v0</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype">const <a class="el" href="classipe_1_1_vector.html">Vector</a> & </td>
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<td class="paramname"> <em>v1</em></td><td> </td>
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<td></td><td></td><td></td>
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<p>Append a straight segment to the subpath. </p>
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<a class="anchor" id="a8b6ead7f1adf212eea2578233ced07cb"></a><!-- doxytag: member="ipe::Curve::appendArc" ref="a8b6ead7f1adf212eea2578233ced07cb" args="(const Matrix &m, const Vector &v0, const Vector &v1)" -->
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<td class="memname">void Curve::appendArc </td>
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<td class="paramtype">const <a class="el" href="classipe_1_1_matrix.html">Matrix</a> & </td>
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<td class="paramname"> <em>m</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype">const <a class="el" href="classipe_1_1_vector.html">Vector</a> & </td>
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<td class="paramname"> <em>v0</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype">const <a class="el" href="classipe_1_1_vector.html">Vector</a> & </td>
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<td class="paramname"> <em>v1</em></td><td> </td>
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<td></td><td></td><td></td>
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<p>Append elliptic arc to the subpath. </p>
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<a class="anchor" id="a62e0ec7e6fc58f8cc2f0e9bda52693ea"></a><!-- doxytag: member="ipe::Curve::appendQuad" ref="a62e0ec7e6fc58f8cc2f0e9bda52693ea" args="(const Vector &v0, const Vector &v1, const Vector &v2)" -->
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<td class="memname">void Curve::appendQuad </td>
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<td class="paramtype">const <a class="el" href="classipe_1_1_vector.html">Vector</a> & </td>
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<td class="paramname"> <em>v0</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype">const <a class="el" href="classipe_1_1_vector.html">Vector</a> & </td>
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<td class="paramname"> <em>v1</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype">const <a class="el" href="classipe_1_1_vector.html">Vector</a> & </td>
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<td class="paramname"> <em>v2</em></td><td> </td>
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<td></td><td></td><td></td>
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<p>Append quadratic <a class="el" href="classipe_1_1_bezier.html" title="A cubic Bezier spline.">Bezier</a> spline. </p>
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<a class="anchor" id="a6b1bc6ab4107ec11ce39b1f7349cf2db"></a><!-- doxytag: member="ipe::Curve::appendBezier" ref="a6b1bc6ab4107ec11ce39b1f7349cf2db" args="(const Vector &v0, const Vector &v1, const Vector &v2, const Vector &v3)" -->
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<td class="memname">void Curve::appendBezier </td>
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<td class="paramtype">const <a class="el" href="classipe_1_1_vector.html">Vector</a> & </td>
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<td class="paramname"> <em>v0</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype">const <a class="el" href="classipe_1_1_vector.html">Vector</a> & </td>
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<td class="paramname"> <em>v1</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype">const <a class="el" href="classipe_1_1_vector.html">Vector</a> & </td>
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<td class="paramname"> <em>v2</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype">const <a class="el" href="classipe_1_1_vector.html">Vector</a> & </td>
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<td class="paramname"> <em>v3</em></td><td> </td>
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<td></td><td></td><td></td>
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<p>Append cubic <a class="el" href="classipe_1_1_bezier.html" title="A cubic Bezier spline.">Bezier</a> spline. </p>
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<a class="anchor" id="a53a567aa81814b8a97f6b68a9508a8d2"></a><!-- doxytag: member="ipe::Curve::appendSpline" ref="a53a567aa81814b8a97f6b68a9508a8d2" args="(const std::vector< Vector > &v)" -->
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<td class="memname">void Curve::appendSpline </td>
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<td class="paramtype">const std::vector< <a class="el" href="classipe_1_1_vector.html">Vector</a> > & </td>
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<td class="paramname"> <em>v</em></td>
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<td> ) </td>
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<p>Append B-spline curve. </p>
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<a class="anchor" id="a8faa181d1b28453e7e6d456d36f090bd"></a><!-- doxytag: member="ipe::Curve::setClosed" ref="a8faa181d1b28453e7e6d456d36f090bd" args="(bool closed)" -->
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<td class="memname">void Curve::setClosed </td>
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<td class="paramtype">bool </td>
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<td class="paramname"> <em>closed</em></td>
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<td> ) </td>
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<p>Set whether subpath is closed or not. </p>
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<hr/>The documentation for this class was generated from the following files:<ul>
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<li>ipeshape.cpp</li>
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