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<!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>Ipelib: IpeSnapData Class Reference</title>
<link href="doxygen.css" rel="stylesheet" type="text/css">
<link href="tabs.css" rel="stylesheet" type="text/css">
</head><body>
<!-- Generated by Doxygen 1.5.1 -->
<div class="tabs">
<ul>
<li><a href="index.html"><span>Main Page</span></a></li>
<li><a href="modules.html"><span>Modules</span></a></li>
<li id="current"><a href="annotated.html"><span>Classes</span></a></li>
</ul></div>
<div class="tabs">
<ul>
<li><a href="annotated.html"><span>Class List</span></a></li>
<li><a href="hierarchy.html"><span>Class Hierarchy</span></a></li>
<li><a href="functions.html"><span>Class Members</span></a></li>
</ul></div>
<h1>IpeSnapData Class Reference<br>
<small>
[<a class="el" href="group__high.html">Ipe Management</a>]</small>
</h1><!-- doxytag: class="IpeSnapData" -->Performs snapping operations, and stores snapping state.
<a href="#_details">More...</a>
<p>
<a href="class_ipe_snap_data-members.html">List of all members.</a><h2>Public Types</h2>
<ul>
<li>enum <a class="el" href="class_ipe_snap_data.html#57308b5164176e725d99ee7c7324e22a">TSnapModes</a> { <br>
<b>ESnapNone</b> = 0,
<b>ESnapVtx</b> = 1,
<b>ESnapBd</b> = 2,
<b>ESnapInt</b> = 4,
<br>
<b>ESnapGrid</b> = 8,
<b>ESnapAngle</b> = 0x10,
<b>ESnapAuto</b> = 0x20
<br>
}
</ul>
<h2>Public Member Functions</h2>
<ul>
<li>bool <a class="el" href="class_ipe_snap_data.html#452d9e418e0bd251f4a7243375de8683">IntersectionSnap</a> (<a class="el" href="class_ipe_vector.html">IpeVector</a> &pos, const <a class="el" href="class_ipe_page.html">IpePage</a> *page, double snapDist) const
<li>bool <a class="el" href="class_ipe_snap_data.html#5078eac23906a9af29bbbf156f4a916b">SnapAngularIntersection</a> (<a class="el" href="class_ipe_vector.html">IpeVector</a> &pos, const <a class="el" href="class_ipe_line.html">IpeLine</a> &l, const <a class="el" href="class_ipe_page.html">IpePage</a> *page, double snapDist) const
<li>bool <a class="el" href="class_ipe_snap_data.html#4a25b02b7ab46e7d2f3810cb67d5aa3e">SimpleSnap</a> (<a class="el" href="class_ipe_vector.html">IpeVector</a> &pos, const <a class="el" href="class_ipe_page.html">IpePage</a> *page, double snapDist) const
<li>bool <a class="el" href="class_ipe_snap_data.html#be30b863f13aa04f87d28e16fdf97e20">Snap</a> (<a class="el" href="class_ipe_vector.html">IpeVector</a> &pos, const <a class="el" href="class_ipe_page.html">IpePage</a> *page, double snapDist, <a class="el" href="class_ipe_vector.html">IpeVector</a> *autoOrg=0) const
<li><a class="el" href="class_ipe_line.html">IpeLine</a> <a class="el" href="class_ipe_snap_data.html#0dca76aa02abc60ae3ffbad4259d1a4f">GetLine</a> (const <a class="el" href="class_ipe_vector.html">IpeVector</a> &mouse, const <a class="el" href="class_ipe_vector.html">IpeVector</a> &base) const
<li>bool <a class="el" href="class_ipe_snap_data.html#8e1326908a58bad2fffa3b3e7765419f">SetEdge</a> (const <a class="el" href="class_ipe_vector.html">IpeVector</a> &pos, const <a class="el" href="class_ipe_page.html">IpePage</a> *page)
</ul>
<h2>Public Attributes</h2>
<ul>
<li>int <a class="el" href="class_ipe_snap_data.html#849c6babe4d7726cd3e9205373d7f6bb">iSnap</a>
<li>bool <a class="el" href="class_ipe_snap_data.html#1df92d5e511ab99b64f2236e14333063">iGridVisible</a>
<li>int <a class="el" href="class_ipe_snap_data.html#a6cce7f59f3c84a8400396a6b54315e5">iGridSize</a>
<li>double <a class="el" href="class_ipe_snap_data.html#e61d2e6665f65b3189e51bee457cffdc">iAngleSize</a>
<li>int <a class="el" href="class_ipe_snap_data.html#c1d4f5c5a1580c14aec7d7e9e1d0c381">iSnapDistance</a>
<li>int <a class="el" href="class_ipe_snap_data.html#1823e254cfe5da4240776246fbe074e2">iSelectDistance</a>
<li>bool <a class="el" href="class_ipe_snap_data.html#39443c6f5a196363ccdc623a19c8694d">iWithAxes</a>
<li><a class="el" href="class_ipe_vector.html">IpeVector</a> <a class="el" href="class_ipe_snap_data.html#79bc59bc356063677917338bd1de63ad">iOrigin</a>
<li><a class="el" href="class_ipe_angle.html">IpeAngle</a> <a class="el" href="class_ipe_snap_data.html#2f3746bd359e4ca76729947a438d47ae">iDir</a>
</ul>
<hr><a name="_details"></a><h2>Detailed Description</h2>
Performs snapping operations, and stores snapping state.
<p>
<hr><h2>Member Enumeration Documentation</h2>
<a class="anchor" name="57308b5164176e725d99ee7c7324e22a"></a><!-- doxytag: member="IpeSnapData::TSnapModes" ref="57308b5164176e725d99ee7c7324e22a" args="" -->
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<td class="memname">enum <a class="el" href="class_ipe_snap_data.html#57308b5164176e725d99ee7c7324e22a">IpeSnapData::TSnapModes</a> </td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
The different snap modes as bitmasks.
<p>
</div>
</div><p>
<hr><h2>Member Function Documentation</h2>
<a class="anchor" name="452d9e418e0bd251f4a7243375de8683"></a><!-- doxytag: member="IpeSnapData::IntersectionSnap" ref="452d9e418e0bd251f4a7243375de8683" args="(IpeVector &pos, const IpePage *page, double snapDist) const" -->
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<td class="memname">bool IpeSnapData::IntersectionSnap </td>
<td>(</td>
<td class="paramtype"><a class="el" href="class_ipe_vector.html">IpeVector</a> & </td>
<td class="paramname"> <em>pos</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="class_ipe_page.html">IpePage</a> * </td>
<td class="paramname"> <em>page</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">double </td>
<td class="paramname"> <em>snapDist</em></td><td> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td width="100%"> const</td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
Perform intersection snapping.
<p>
</div>
</div><p>
<a class="anchor" name="5078eac23906a9af29bbbf156f4a916b"></a><!-- doxytag: member="IpeSnapData::SnapAngularIntersection" ref="5078eac23906a9af29bbbf156f4a916b" args="(IpeVector &pos, const IpeLine &l, const IpePage *page, double snapDist) const" -->
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<td class="memname">bool IpeSnapData::SnapAngularIntersection </td>
<td>(</td>
<td class="paramtype"><a class="el" href="class_ipe_vector.html">IpeVector</a> & </td>
<td class="paramname"> <em>pos</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="class_ipe_line.html">IpeLine</a> & </td>
<td class="paramname"> <em>l</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="class_ipe_page.html">IpePage</a> * </td>
<td class="paramname"> <em>page</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">double </td>
<td class="paramname"> <em>snapDist</em></td><td> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td width="100%"> const</td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
Perform snapping to intersection of angular line and pos.
<p>
</div>
</div><p>
<a class="anchor" name="4a25b02b7ab46e7d2f3810cb67d5aa3e"></a><!-- doxytag: member="IpeSnapData::SimpleSnap" ref="4a25b02b7ab46e7d2f3810cb67d5aa3e" args="(IpeVector &pos, const IpePage *page, double snapDist) const" -->
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<td class="memname">bool IpeSnapData::SimpleSnap </td>
<td>(</td>
<td class="paramtype"><a class="el" href="class_ipe_vector.html">IpeVector</a> & </td>
<td class="paramname"> <em>pos</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="class_ipe_page.html">IpePage</a> * </td>
<td class="paramname"> <em>page</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">double </td>
<td class="paramname"> <em>snapDist</em></td><td> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td width="100%"> const</td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
Tries vertex, intersection, boundary, and grid snapping.
<p>
If snapping occurred, <em>pos</em> is set to the new user space position.
</div>
</div><p>
<a class="anchor" name="be30b863f13aa04f87d28e16fdf97e20"></a><!-- doxytag: member="IpeSnapData::Snap" ref="be30b863f13aa04f87d28e16fdf97e20" args="(IpeVector &pos, const IpePage *page, double snapDist, IpeVector *autoOrg=0) const" -->
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<td class="memname">bool IpeSnapData::Snap </td>
<td>(</td>
<td class="paramtype"><a class="el" href="class_ipe_vector.html">IpeVector</a> & </td>
<td class="paramname"> <em>pos</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="class_ipe_page.html">IpePage</a> * </td>
<td class="paramname"> <em>page</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">double </td>
<td class="paramname"> <em>snapDist</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="class_ipe_vector.html">IpeVector</a> * </td>
<td class="paramname"> <em>autoOrg</em> = <code>0</code></td><td> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td width="100%"> const</td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
Performs snapping of position <em>pos</em>.
<p>
Returns <code>true</code> if snapping occurred. In that case <em>pos</em> is set to the new user space position.<p>
Automatic angular snapping occurs if <em>autoOrg</em> is not null --- the value is then used as the origin for automatic angular snapping.
</div>
</div><p>
<a class="anchor" name="0dca76aa02abc60ae3ffbad4259d1a4f"></a><!-- doxytag: member="IpeSnapData::GetLine" ref="0dca76aa02abc60ae3ffbad4259d1a4f" args="(const IpeVector &mouse, const IpeVector &base) const" -->
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<td class="memname"><a class="el" href="class_ipe_line.html">IpeLine</a> IpeSnapData::GetLine </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="class_ipe_vector.html">IpeVector</a> & </td>
<td class="paramname"> <em>mouse</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="class_ipe_vector.html">IpeVector</a> & </td>
<td class="paramname"> <em>base</em></td><td> </td>
</tr>
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<td></td>
<td>)</td>
<td></td><td></td><td width="100%"> const</td>
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<p>
Find line through <em>base</em> with slope determined by angular snap size and direction.
</div>
</div><p>
<a class="anchor" name="8e1326908a58bad2fffa3b3e7765419f"></a><!-- doxytag: member="IpeSnapData::SetEdge" ref="8e1326908a58bad2fffa3b3e7765419f" args="(const IpeVector &pos, const IpePage *page)" -->
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<td class="memname">bool IpeSnapData::SetEdge </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="class_ipe_vector.html">IpeVector</a> & </td>
<td class="paramname"> <em>pos</em>, </td>
</tr>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="class_ipe_page.html">IpePage</a> * </td>
<td class="paramname"> <em>page</em></td><td> </td>
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<td>)</td>
<td></td><td></td><td width="100%"></td>
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<p>
Set axis origin and direction from edge near mouse.
<p>
Returns <code>true</code> if successful.
</div>
</div><p>
<hr><h2>Member Data Documentation</h2>
<a class="anchor" name="849c6babe4d7726cd3e9205373d7f6bb"></a><!-- doxytag: member="IpeSnapData::iSnap" ref="849c6babe4d7726cd3e9205373d7f6bb" args="" -->
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<td class="memname">int <a class="el" href="class_ipe_snap_data.html#849c6babe4d7726cd3e9205373d7f6bb">IpeSnapData::iSnap</a> </td>
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<p>
Activated snapping modes (TSnapModes).
<p>
</div>
</div><p>
<a class="anchor" name="1df92d5e511ab99b64f2236e14333063"></a><!-- doxytag: member="IpeSnapData::iGridVisible" ref="1df92d5e511ab99b64f2236e14333063" args="" -->
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<td class="memname">bool <a class="el" href="class_ipe_snap_data.html#1df92d5e511ab99b64f2236e14333063">IpeSnapData::iGridVisible</a> </td>
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<p>
Is the grid visible?
<p>
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<a class="anchor" name="a6cce7f59f3c84a8400396a6b54315e5"></a><!-- doxytag: member="IpeSnapData::iGridSize" ref="a6cce7f59f3c84a8400396a6b54315e5" args="" -->
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<td class="memname">int <a class="el" href="class_ipe_snap_data.html#a6cce7f59f3c84a8400396a6b54315e5">IpeSnapData::iGridSize</a> </td>
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<p>
Snap grid spacing.
<p>
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<a class="anchor" name="e61d2e6665f65b3189e51bee457cffdc"></a><!-- doxytag: member="IpeSnapData::iAngleSize" ref="e61d2e6665f65b3189e51bee457cffdc" args="" -->
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<td class="memname">double <a class="el" href="class_ipe_snap_data.html#e61d2e6665f65b3189e51bee457cffdc">IpeSnapData::iAngleSize</a> </td>
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<p>
Angle for angular snapping.
<p>
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<a class="anchor" name="c1d4f5c5a1580c14aec7d7e9e1d0c381"></a><!-- doxytag: member="IpeSnapData::iSnapDistance" ref="c1d4f5c5a1580c14aec7d7e9e1d0c381" args="" -->
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<td class="memname">int <a class="el" href="class_ipe_snap_data.html#c1d4f5c5a1580c14aec7d7e9e1d0c381">IpeSnapData::iSnapDistance</a> </td>
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<p>
Snap distance (in pixels).
<p>
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<a class="anchor" name="1823e254cfe5da4240776246fbe074e2"></a><!-- doxytag: member="IpeSnapData::iSelectDistance" ref="1823e254cfe5da4240776246fbe074e2" args="" -->
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<td class="memname">int <a class="el" href="class_ipe_snap_data.html#1823e254cfe5da4240776246fbe074e2">IpeSnapData::iSelectDistance</a> </td>
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<p>
Select distance (in pixels).
<p>
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<a class="anchor" name="39443c6f5a196363ccdc623a19c8694d"></a><!-- doxytag: member="IpeSnapData::iWithAxes" ref="39443c6f5a196363ccdc623a19c8694d" args="" -->
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<td class="memname">bool <a class="el" href="class_ipe_snap_data.html#39443c6f5a196363ccdc623a19c8694d">IpeSnapData::iWithAxes</a> </td>
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<p>
Show coordinate system?
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<a class="anchor" name="79bc59bc356063677917338bd1de63ad"></a><!-- doxytag: member="IpeSnapData::iOrigin" ref="79bc59bc356063677917338bd1de63ad" args="" -->
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<td class="memname"><a class="el" href="class_ipe_vector.html">IpeVector</a> <a class="el" href="class_ipe_snap_data.html#79bc59bc356063677917338bd1de63ad">IpeSnapData::iOrigin</a> </td>
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Origin of coordinate system.
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<a class="anchor" name="2f3746bd359e4ca76729947a438d47ae"></a><!-- doxytag: member="IpeSnapData::iDir" ref="2f3746bd359e4ca76729947a438d47ae" args="" -->
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<td class="memname"><a class="el" href="class_ipe_angle.html">IpeAngle</a> <a class="el" href="class_ipe_snap_data.html#2f3746bd359e4ca76729947a438d47ae">IpeSnapData::iDir</a> </td>
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Direction of x-axis.
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<hr>The documentation for this class was generated from the following files:<ul>
<li>ipesnap.h<li>ipesnap.cpp</ul>
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