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<h1>vtkCosmicTreeLayoutStrategy Class Reference</h1><!-- doxytag: class="vtkCosmicTreeLayoutStrategy" --><!-- doxytag: inherits="vtkGraphLayoutStrategy" --><code>#include <<a class="el" href="a04801.html">vtkCosmicTreeLayoutStrategy.h</a>></code>
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Inheritance diagram for vtkCosmicTreeLayoutStrategy:</div>
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Collaboration diagram for vtkCosmicTreeLayoutStrategy:</div>
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<a href="a08889.html">List of all members.</a><hr><a name="_details"></a><h2>Detailed Description</h2>
tree layout strategy reminiscent of astronomical systems
<p>
This layout strategy takes an input tree and places all the children of a node into a containing circle. The placement is such that each child placed can be represented with a circle tangent to the containing circle and (usually) 2 other children. The interior of the circle is left empty so that graph edges drawn on top of the tree will not obfuscate the tree. However, when one child is much larger than all the others, it may encroach on the center of the containing circle; that's OK, because it's large enough not to be obscured by edges drawn atop it.<p>
<dl class="user" compact><dt><b>Thanks:</b></dt><dd>Thanks to the galaxy and David Thompson hierarchically nested inside it for inspiring this layout strategy.</dd></dl>
<dl class="user" compact><dt><b>Tests:</b></dt><dd><a class="el" href="c2_vtk_t_3.html#c2_vtk_t_vtkCosmicTreeLayoutStrategy">vtkCosmicTreeLayoutStrategy (Tests)</a> </dd></dl>
<p>Definition at line <a class="el" href="a04801.html#l00042">42</a> of file <a class="el" href="a04801.html">vtkCosmicTreeLayoutStrategy.h</a>.</p>
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<tr><td colspan="2"><br><h2>Public Types</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">typedef <a class="el" href="a00667.html">vtkGraphLayoutStrategy</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="a00339.html#a26c42a97940e1a3b89608a3b355ab29">Superclass</a></td></tr>
<tr><td colspan="2"><br><h2>Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="a00339.html#e49567e9c246761311331bac056ee2d7">PrintSelf</a> (ostream &os, <a class="el" href="a00869.html">vtkIndent</a> indent)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual const char * </td><td class="memItemRight" valign="bottom"><a class="el" href="a00339.html#57834782e043bf2a1b718ec740430099">GetClassName</a> ()</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual int </td><td class="memItemRight" valign="bottom"><a class="el" href="a00339.html#8d745ff578c3b53c31bf2d9adee8128d">IsA</a> (const char *type)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="a00339.html#9a1f2de50863d521ed6ee009da2e8bfc">Layout</a> ()</td></tr>
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<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="a00339.html#ddb44b83cbac049ce445bf15e66553e1">SetSizeLeafNodesOnly</a> (int)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual int </td><td class="memItemRight" valign="bottom"><a class="el" href="a00339.html#88dd4ad6a9fb2fcad6043637ae8cd09c">GetSizeLeafNodesOnly</a> ()</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="a00339.html#2778d4512dec4eeaaa0746968f8be5d9">SizeLeafNodesOnlyOn</a> ()</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="a00339.html#24b8ae7334e8ed0855b677fa31fa3773">SizeLeafNodesOnlyOff</a> ()</td></tr>
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<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="a00339.html#6d4d078f77445d7097d35a598dc84070">SetLayoutDepth</a> (int)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual int </td><td class="memItemRight" valign="bottom"><a class="el" href="a00339.html#ff7484246c5667b5966d376ab66b0113">GetLayoutDepth</a> ()</td></tr>
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<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="a00339.html#ada47ad248aa64d8bc2318e3cfdbd4db">SetLayoutRoot</a> (<a class="el" href="a02149.html#20bd6b6dedfe1bbb096c50354d52cc7e">vtkIdType</a>)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual <a class="el" href="a02149.html#20bd6b6dedfe1bbb096c50354d52cc7e">vtkIdType</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="a00339.html#4bcd1cd4dfeb753b42d8c60811cc39db">GetLayoutRoot</a> ()</td></tr>
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<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="a00339.html#e76548ed3ddc456191c3fcc60590293d">SetNodeSizeArrayName</a> (const char *)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual char * </td><td class="memItemRight" valign="bottom"><a class="el" href="a00339.html#47b432118f58b70a563a21c1b00273b5">GetNodeSizeArrayName</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">static <br>
<a class="el" href="a00339.html">vtkCosmicTreeLayoutStrategy</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="a00339.html#40455ba7037d30286f81e8f64e6ef3ff">New</a> ()</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">static int </td><td class="memItemRight" valign="bottom"><a class="el" href="a00339.html#63fb738e1914d2da068cb67765d5e6ba">IsTypeOf</a> (const char *type)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">static <br>
<a class="el" href="a00339.html">vtkCosmicTreeLayoutStrategy</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="a00339.html#0fdaa34655e9176e419a01faca55a5dd">SafeDownCast</a> (<a class="el" href="a01084.html">vtkObject</a> *o)</td></tr>
<tr><td colspan="2"><br><h2>Protected Types</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">enum </td><td class="memItemRight" valign="bottom"><a class="el" href="a00339.html#6a44b85f750e31f308ee291f3c7cd62d">RadiusMode</a> { <a class="el" href="a00339.html#6a44b85f750e31f308ee291f3c7cd62d73e916b03a04ed4c43a0d48ada01b987">NONE</a>,
<a class="el" href="a00339.html#6a44b85f750e31f308ee291f3c7cd62d7e50e1f16b7e1449286d149b9e684e6f">LEAVES</a>,
<a class="el" href="a00339.html#6a44b85f750e31f308ee291f3c7cd62da799cf300fc51454555e0b5e1d521f7c">ALL</a>
}</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">How are node sizes specified? <a href="a00339.html#6a44b85f750e31f308ee291f3c7cd62d">More...</a><br></td></tr>
<tr><td colspan="2"><br><h2>Protected Member Functions</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="a00339.html#7165dbe9b7aeeb03c90d6a26634cb46f">vtkCosmicTreeLayoutStrategy</a> ()</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual </td><td class="memItemRight" valign="bottom"><a class="el" href="a00339.html#6fab7bc5d4cefecde235a0d0da33be97">~vtkCosmicTreeLayoutStrategy</a> ()</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="a00436.html">vtkDoubleArray</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="a00339.html#3036810f42eea5e016ba5f5baf86dda7">CreateRadii</a> (<a class="el" href="a02149.html#20bd6b6dedfe1bbb096c50354d52cc7e">vtkIdType</a> numVertices, double initialValue, <a class="el" href="a00356.html">vtkDataArray</a> *inputRadii)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="a00436.html">vtkDoubleArray</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="a00339.html#95cb97535862333c033411b578bcebf0">CreateScaleFactors</a> (<a class="el" href="a02149.html#20bd6b6dedfe1bbb096c50354d52cc7e">vtkIdType</a> numVertices)</td></tr>
<tr><td colspan="2"><div class="groupHeader"></div></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="a00339.html#fa82c325bafd20d446851ca4d9473aab">LayoutChildren</a> (<a class="el" href="a01741.html">vtkTree</a> *tree, <a class="el" href="a01250.html">vtkPoints</a> *newPoints, <a class="el" href="a00436.html">vtkDoubleArray</a> *radii, <a class="el" href="a00436.html">vtkDoubleArray</a> *scale, <a class="el" href="a02149.html#20bd6b6dedfe1bbb096c50354d52cc7e">vtkIdType</a> root, int depth, <a class="el" href="a00339.html#6a44b85f750e31f308ee291f3c7cd62d">RadiusMode</a> mode)</td></tr>
<tr><td colspan="2"><div class="groupHeader"></div></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="a00339.html#ed75705bc8b40f1078a78ef639158804">OffsetChildren</a> (<a class="el" href="a01741.html">vtkTree</a> *tree, <a class="el" href="a01250.html">vtkPoints</a> *pts, <a class="el" href="a00436.html">vtkDoubleArray</a> *radii, <a class="el" href="a00436.html">vtkDoubleArray</a> *scale, double parent[4], <a class="el" href="a02149.html#20bd6b6dedfe1bbb096c50354d52cc7e">vtkIdType</a> root, int depth, <a class="el" href="a00339.html#6a44b85f750e31f308ee291f3c7cd62d">RadiusMode</a> mode)</td></tr>
<tr><td colspan="2"><br><h2>Protected Attributes</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="a00339.html#866af0ee885d9af37c8efa6504b6e980">SizeLeafNodesOnly</a></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="a00339.html#48c16c2d553c9e9d5cf3ff29fbe88a91">LayoutDepth</a></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="a02149.html#20bd6b6dedfe1bbb096c50354d52cc7e">vtkIdType</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="a00339.html#713f7e07f8b225649df483e125f49c13">LayoutRoot</a></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">char * </td><td class="memItemRight" valign="bottom"><a class="el" href="a00339.html#e7571ffd932c866fcbf4f16cb11507ce">NodeSizeArrayName</a></td></tr>
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<hr><h2>Member Typedef Documentation</h2>
<a class="anchor" name="a26c42a97940e1a3b89608a3b355ab29"></a><!-- doxytag: member="vtkCosmicTreeLayoutStrategy::Superclass" ref="a26c42a97940e1a3b89608a3b355ab29" args="" -->
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<td class="memname">typedef <a class="el" href="a00667.html">vtkGraphLayoutStrategy</a> <a class="el" href="a00667.html">vtkCosmicTreeLayoutStrategy::Superclass</a> </td>
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<p>Reimplemented from <a class="el" href="a00667.html#4dbb78d8dc867947542009fecdb02589">vtkGraphLayoutStrategy</a>.</p>
<p>Definition at line <a class="el" href="a04801.html#l00047">47</a> of file <a class="el" href="a04801.html">vtkCosmicTreeLayoutStrategy.h</a>.</p>
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<hr><h2>Member Enumeration Documentation</h2>
<a class="anchor" name="6a44b85f750e31f308ee291f3c7cd62d"></a><!-- doxytag: member="vtkCosmicTreeLayoutStrategy::RadiusMode" ref="6a44b85f750e31f308ee291f3c7cd62d" args="" -->
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<td class="memname">enum <a class="el" href="a00339.html#6a44b85f750e31f308ee291f3c7cd62d">vtkCosmicTreeLayoutStrategy::RadiusMode</a><code> [protected]</code> </td>
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How are node sizes specified?
<p>
<dl compact><dt><b>Enumerator: </b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"><em><a class="anchor" name="6a44b85f750e31f308ee291f3c7cd62d73e916b03a04ed4c43a0d48ada01b987"></a><!-- doxytag: member="NONE" ref="6a44b85f750e31f308ee291f3c7cd62d73e916b03a04ed4c43a0d48ada01b987" args="" -->NONE</em> </td><td>
No node sizes specified... unit radius is assumed. </td></tr>
<tr><td valign="top"><em><a class="anchor" name="6a44b85f750e31f308ee291f3c7cd62d7e50e1f16b7e1449286d149b9e684e6f"></a><!-- doxytag: member="LEAVES" ref="6a44b85f750e31f308ee291f3c7cd62d7e50e1f16b7e1449286d149b9e684e6f" args="" -->LEAVES</em> </td><td>
Only leaf node sizes specified... parents are calculated during layout. </td></tr>
<tr><td valign="top"><em><a class="anchor" name="6a44b85f750e31f308ee291f3c7cd62da799cf300fc51454555e0b5e1d521f7c"></a><!-- doxytag: member="ALL" ref="6a44b85f750e31f308ee291f3c7cd62da799cf300fc51454555e0b5e1d521f7c" args="" -->ALL</em> </td><td>
All node sizes specified (overconstrained, so a scale factor for each parent is calculated during layout). </td></tr>
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<p>Definition at line <a class="el" href="a04801.html#l00096">96</a> of file <a class="el" href="a04801.html">vtkCosmicTreeLayoutStrategy.h</a>.</p>
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<hr><h2>Constructor & Destructor Documentation</h2>
<a class="anchor" name="7165dbe9b7aeeb03c90d6a26634cb46f"></a><!-- doxytag: member="vtkCosmicTreeLayoutStrategy::vtkCosmicTreeLayoutStrategy" ref="7165dbe9b7aeeb03c90d6a26634cb46f" args="()" -->
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<td class="memname">vtkCosmicTreeLayoutStrategy::vtkCosmicTreeLayoutStrategy </td>
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<td class="paramname"> </td>
<td> ) </td>
<td><code> [protected]</code></td>
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<a class="anchor" name="6fab7bc5d4cefecde235a0d0da33be97"></a><!-- doxytag: member="vtkCosmicTreeLayoutStrategy::~vtkCosmicTreeLayoutStrategy" ref="6fab7bc5d4cefecde235a0d0da33be97" args="()" -->
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<td class="memname">virtual vtkCosmicTreeLayoutStrategy::~vtkCosmicTreeLayoutStrategy </td>
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<td class="paramname"> </td>
<td> ) </td>
<td><code> [protected, virtual]</code></td>
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<hr><h2>Member Function Documentation</h2>
<a class="anchor" name="40455ba7037d30286f81e8f64e6ef3ff"></a><!-- doxytag: member="vtkCosmicTreeLayoutStrategy::New" ref="40455ba7037d30286f81e8f64e6ef3ff" args="()" -->
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<td class="memname">static <a class="el" href="a00339.html">vtkCosmicTreeLayoutStrategy</a>* vtkCosmicTreeLayoutStrategy::New </td>
<td>(</td>
<td class="paramname"> </td>
<td> ) </td>
<td><code> [static]</code></td>
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<p>
Create an object with Debug turned off, modified time initialized to zero, and reference counting on.
<p>Reimplemented from <a class="el" href="a01084.html#4d5b227267c076d6f9e38483370b6612">vtkObject</a>.</p>
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<a class="anchor" name="e49567e9c246761311331bac056ee2d7"></a><!-- doxytag: member="vtkCosmicTreeLayoutStrategy::PrintSelf" ref="e49567e9c246761311331bac056ee2d7" args="(ostream &os, vtkIndent indent)" -->
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<td class="memname">virtual void vtkCosmicTreeLayoutStrategy::PrintSelf </td>
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<td class="paramtype"><a class="el" href="a00869.html">vtkIndent</a> </td>
<td class="paramname"> <em>indent</em></td><td> </td>
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<td>)</td>
<td></td><td></td><td><code> [virtual]</code></td>
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Methods invoked by print to print information about the object including superclasses. Typically not called by the user (use <a class="el" href="a01085.html#edadf6378465fd81c2592ef64262e2a5">Print()</a> instead) but used in the hierarchical print process to combine the output of several classes.
<p>Reimplemented from <a class="el" href="a00667.html#920e5873c1be5fe0b75c11beca20ed4b">vtkGraphLayoutStrategy</a>.</p>
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<a class="anchor" name="57834782e043bf2a1b718ec740430099"></a><!-- doxytag: member="vtkCosmicTreeLayoutStrategy::GetClassName" ref="57834782e043bf2a1b718ec740430099" args="()" -->
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<td class="memname">virtual const char* vtkCosmicTreeLayoutStrategy::GetClassName </td>
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<td><code> [virtual]</code></td>
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<p>Reimplemented from <a class="el" href="a00667.html#28899a5ab7bc5f4a74e7e7910296b166">vtkGraphLayoutStrategy</a>.</p>
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<a class="anchor" name="63fb738e1914d2da068cb67765d5e6ba"></a><!-- doxytag: member="vtkCosmicTreeLayoutStrategy::IsTypeOf" ref="63fb738e1914d2da068cb67765d5e6ba" args="(const char *type)" -->
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<td class="memname">static int vtkCosmicTreeLayoutStrategy::IsTypeOf </td>
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Return 1 if this class type is the same type of (or a subclass of) the named class. Returns 0 otherwise. This method works in combination with vtkTypeRevisionMacro found in vtkSetGet.h.
<p>Reimplemented from <a class="el" href="a00667.html#e79bfd9f48776ad8dd95b657ceb6556b">vtkGraphLayoutStrategy</a>.</p>
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<a class="anchor" name="8d745ff578c3b53c31bf2d9adee8128d"></a><!-- doxytag: member="vtkCosmicTreeLayoutStrategy::IsA" ref="8d745ff578c3b53c31bf2d9adee8128d" args="(const char *type)" -->
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<td class="memname">virtual int vtkCosmicTreeLayoutStrategy::IsA </td>
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Return 1 if this class is the same type of (or a subclass of) the named class. Returns 0 otherwise. This method works in combination with vtkTypeRevisionMacro found in vtkSetGet.h.
<p>Reimplemented from <a class="el" href="a00667.html#9f000939387efbfdd1799d663c4c1d88">vtkGraphLayoutStrategy</a>.</p>
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<a class="anchor" name="0fdaa34655e9176e419a01faca55a5dd"></a><!-- doxytag: member="vtkCosmicTreeLayoutStrategy::SafeDownCast" ref="0fdaa34655e9176e419a01faca55a5dd" args="(vtkObject *o)" -->
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<td class="memname">static <a class="el" href="a00339.html">vtkCosmicTreeLayoutStrategy</a>* vtkCosmicTreeLayoutStrategy::SafeDownCast </td>
<td>(</td>
<td class="paramtype"><a class="el" href="a01084.html">vtkObject</a> * </td>
<td class="paramname"> <em>o</em> </td>
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<p>Reimplemented from <a class="el" href="a00667.html#22b09433df6d68ce3669cc16acff5bd8">vtkGraphLayoutStrategy</a>.</p>
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<a class="anchor" name="9a1f2de50863d521ed6ee009da2e8bfc"></a><!-- doxytag: member="vtkCosmicTreeLayoutStrategy::Layout" ref="9a1f2de50863d521ed6ee009da2e8bfc" args="()" -->
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<td class="memname">virtual void vtkCosmicTreeLayoutStrategy::Layout </td>
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Perform the layout.
<p>Implements <a class="el" href="a00667.html#14f90ab69c42daa54714afdf45fe0148">vtkGraphLayoutStrategy</a>.</p>
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<a class="anchor" name="ddb44b83cbac049ce445bf15e66553e1"></a><!-- doxytag: member="vtkCosmicTreeLayoutStrategy::SetSizeLeafNodesOnly" ref="ddb44b83cbac049ce445bf15e66553e1" args="(int)" -->
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<td class="memname">virtual void vtkCosmicTreeLayoutStrategy::SetSizeLeafNodesOnly </td>
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Should node size specifications be obeyed at leaf nodes only or (with scaling as required to meet constraints) at every node in the tree? This defaults to true, so that leaf nodes are scaled according to the size specification provided, and the parent node sizes are calculated by the algorithm.
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<a class="anchor" name="88dd4ad6a9fb2fcad6043637ae8cd09c"></a><!-- doxytag: member="vtkCosmicTreeLayoutStrategy::GetSizeLeafNodesOnly" ref="88dd4ad6a9fb2fcad6043637ae8cd09c" args="()" -->
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<td class="memname">virtual int vtkCosmicTreeLayoutStrategy::GetSizeLeafNodesOnly </td>
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Should node size specifications be obeyed at leaf nodes only or (with scaling as required to meet constraints) at every node in the tree? This defaults to true, so that leaf nodes are scaled according to the size specification provided, and the parent node sizes are calculated by the algorithm.
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<a class="anchor" name="2778d4512dec4eeaaa0746968f8be5d9"></a><!-- doxytag: member="vtkCosmicTreeLayoutStrategy::SizeLeafNodesOnlyOn" ref="2778d4512dec4eeaaa0746968f8be5d9" args="()" -->
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<td class="memname">virtual void vtkCosmicTreeLayoutStrategy::SizeLeafNodesOnlyOn </td>
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Should node size specifications be obeyed at leaf nodes only or (with scaling as required to meet constraints) at every node in the tree? This defaults to true, so that leaf nodes are scaled according to the size specification provided, and the parent node sizes are calculated by the algorithm.
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<a class="anchor" name="24b8ae7334e8ed0855b677fa31fa3773"></a><!-- doxytag: member="vtkCosmicTreeLayoutStrategy::SizeLeafNodesOnlyOff" ref="24b8ae7334e8ed0855b677fa31fa3773" args="()" -->
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<td class="memname">virtual void vtkCosmicTreeLayoutStrategy::SizeLeafNodesOnlyOff </td>
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Should node size specifications be obeyed at leaf nodes only or (with scaling as required to meet constraints) at every node in the tree? This defaults to true, so that leaf nodes are scaled according to the size specification provided, and the parent node sizes are calculated by the algorithm.
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<a class="anchor" name="6d4d078f77445d7097d35a598dc84070"></a><!-- doxytag: member="vtkCosmicTreeLayoutStrategy::SetLayoutDepth" ref="6d4d078f77445d7097d35a598dc84070" args="(int)" -->
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<td class="memname">virtual void vtkCosmicTreeLayoutStrategy::SetLayoutDepth </td>
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How many levels of the tree should be laid out? For large trees, you may wish to set the root and maximum depth in order to retrieve the layout for the visible portion of the tree. When this value is zero or negative, all nodes below and including the LayoutRoot will be presented. This defaults to 0.
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<a class="anchor" name="ff7484246c5667b5966d376ab66b0113"></a><!-- doxytag: member="vtkCosmicTreeLayoutStrategy::GetLayoutDepth" ref="ff7484246c5667b5966d376ab66b0113" args="()" -->
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<td class="memname">virtual int vtkCosmicTreeLayoutStrategy::GetLayoutDepth </td>
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How many levels of the tree should be laid out? For large trees, you may wish to set the root and maximum depth in order to retrieve the layout for the visible portion of the tree. When this value is zero or negative, all nodes below and including the LayoutRoot will be presented. This defaults to 0.
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<a class="anchor" name="ada47ad248aa64d8bc2318e3cfdbd4db"></a><!-- doxytag: member="vtkCosmicTreeLayoutStrategy::SetLayoutRoot" ref="ada47ad248aa64d8bc2318e3cfdbd4db" args="(vtkIdType)" -->
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<td class="memname">virtual void vtkCosmicTreeLayoutStrategy::SetLayoutRoot </td>
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What is the top-most tree node to lay out? This node will become the largest containing circle in the layout. Use this in combination with SetLayoutDepth to retrieve the layout of a subtree of interest for rendering. Setting LayoutRoot to a negative number signals that the root node of the tree should be used as the root node of the layout. This defaults to -1.
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<a class="anchor" name="4bcd1cd4dfeb753b42d8c60811cc39db"></a><!-- doxytag: member="vtkCosmicTreeLayoutStrategy::GetLayoutRoot" ref="4bcd1cd4dfeb753b42d8c60811cc39db" args="()" -->
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<td class="memname">virtual <a class="el" href="a02149.html#20bd6b6dedfe1bbb096c50354d52cc7e">vtkIdType</a> vtkCosmicTreeLayoutStrategy::GetLayoutRoot </td>
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What is the top-most tree node to lay out? This node will become the largest containing circle in the layout. Use this in combination with SetLayoutDepth to retrieve the layout of a subtree of interest for rendering. Setting LayoutRoot to a negative number signals that the root node of the tree should be used as the root node of the layout. This defaults to -1.
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<a class="anchor" name="e76548ed3ddc456191c3fcc60590293d"></a><!-- doxytag: member="vtkCosmicTreeLayoutStrategy::SetNodeSizeArrayName" ref="e76548ed3ddc456191c3fcc60590293d" args="(const char *)" -->
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<td class="memname">virtual void vtkCosmicTreeLayoutStrategy::SetNodeSizeArrayName </td>
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Set the array to be used for sizing nodes. If this is set to an empty string or NULL (the default), then all leaf nodes (or all nodes, when SizeLeafNodesOnly is false) will be assigned a unit size.
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<a class="anchor" name="47b432118f58b70a563a21c1b00273b5"></a><!-- doxytag: member="vtkCosmicTreeLayoutStrategy::GetNodeSizeArrayName" ref="47b432118f58b70a563a21c1b00273b5" args="()" -->
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<td class="memname">virtual char* vtkCosmicTreeLayoutStrategy::GetNodeSizeArrayName </td>
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Set the array to be used for sizing nodes. If this is set to an empty string or NULL (the default), then all leaf nodes (or all nodes, when SizeLeafNodesOnly is false) will be assigned a unit size.
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<a class="anchor" name="fa82c325bafd20d446851ca4d9473aab"></a><!-- doxytag: member="vtkCosmicTreeLayoutStrategy::LayoutChildren" ref="fa82c325bafd20d446851ca4d9473aab" args="(vtkTree *tree, vtkPoints *newPoints, vtkDoubleArray *radii, vtkDoubleArray *scale, vtkIdType root, int depth, RadiusMode mode)" -->
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<td class="memname">void vtkCosmicTreeLayoutStrategy::LayoutChildren </td>
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<td class="paramtype"><a class="el" href="a00339.html#6a44b85f750e31f308ee291f3c7cd62d">RadiusMode</a> </td>
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Recursive routine used to lay out tree nodes. Called from <a class="el" href="a00339.html#9a1f2de50863d521ed6ee009da2e8bfc">Layout()</a>.
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<a class="anchor" name="ed75705bc8b40f1078a78ef639158804"></a><!-- doxytag: member="vtkCosmicTreeLayoutStrategy::OffsetChildren" ref="ed75705bc8b40f1078a78ef639158804" args="(vtkTree *tree, vtkPoints *pts, vtkDoubleArray *radii, vtkDoubleArray *scale, double parent[4], vtkIdType root, int depth, RadiusMode mode)" -->
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Recursive routine that adds each parent node's (x,y) position to its children. This must be done only after all the children have been laid out at the origin since we will not know the parent's position until after the child radii have been determined.
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<a class="anchor" name="3036810f42eea5e016ba5f5baf86dda7"></a><!-- doxytag: member="vtkCosmicTreeLayoutStrategy::CreateRadii" ref="3036810f42eea5e016ba5f5baf86dda7" args="(vtkIdType numVertices, double initialValue, vtkDataArray *inputRadii)" -->
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<td class="memname"><a class="el" href="a00436.html">vtkDoubleArray</a>* vtkCosmicTreeLayoutStrategy::CreateRadii </td>
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Create an array to hold radii, named appropriately (depends on <em>NodeSizeArrayName</em>) and initialized to either (a) -1.0 for each node or (b) a deep copy of an existing array. <dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>numVertices</em> </td><td>The number of vertices on the tree. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>initialValue</em> </td><td>The starting value of each node's radius. Only used when <em>inputRadii</em> is NULL. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>inputRadii</em> </td><td>Either NULL or the address of another array to be copied into the output array </td></tr>
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<dl compact><dt><b>Return values:</b></dt><dd>
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<tr><td valign="top"></td><td valign="top"><em>The</em> </td><td>array of node radii to be set on the output </td></tr>
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<a class="anchor" name="95cb97535862333c033411b578bcebf0"></a><!-- doxytag: member="vtkCosmicTreeLayoutStrategy::CreateScaleFactors" ref="95cb97535862333c033411b578bcebf0" args="(vtkIdType numVertices)" -->
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<td class="memname"><a class="el" href="a00436.html">vtkDoubleArray</a>* vtkCosmicTreeLayoutStrategy::CreateScaleFactors </td>
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Create an array to hold scale factors, named appropriately (depends on <em>NodeSizeArrayName</em>) and initialized to -1.0. <dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>numVertices</em> </td><td>The number of vertices on the tree. </td></tr>
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<tr><td valign="top"></td><td valign="top"><em>The</em> </td><td>array of node scale factors to be set on the output </td></tr>
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<hr><h2>Member Data Documentation</h2>
<a class="anchor" name="866af0ee885d9af37c8efa6504b6e980"></a><!-- doxytag: member="vtkCosmicTreeLayoutStrategy::SizeLeafNodesOnly" ref="866af0ee885d9af37c8efa6504b6e980" args="" -->
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<td class="memname">int <a class="el" href="a00339.html#866af0ee885d9af37c8efa6504b6e980">vtkCosmicTreeLayoutStrategy::SizeLeafNodesOnly</a><code> [protected]</code> </td>
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<p>Definition at line <a class="el" href="a04801.html#l00142">142</a> of file <a class="el" href="a04801.html">vtkCosmicTreeLayoutStrategy.h</a>.</p>
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<a class="anchor" name="48c16c2d553c9e9d5cf3ff29fbe88a91"></a><!-- doxytag: member="vtkCosmicTreeLayoutStrategy::LayoutDepth" ref="48c16c2d553c9e9d5cf3ff29fbe88a91" args="" -->
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<td class="memname">int <a class="el" href="a00339.html#48c16c2d553c9e9d5cf3ff29fbe88a91">vtkCosmicTreeLayoutStrategy::LayoutDepth</a><code> [protected]</code> </td>
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<p>Definition at line <a class="el" href="a04801.html#l00143">143</a> of file <a class="el" href="a04801.html">vtkCosmicTreeLayoutStrategy.h</a>.</p>
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<a class="anchor" name="713f7e07f8b225649df483e125f49c13"></a><!-- doxytag: member="vtkCosmicTreeLayoutStrategy::LayoutRoot" ref="713f7e07f8b225649df483e125f49c13" args="" -->
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<td class="memname"><a class="el" href="a02149.html#20bd6b6dedfe1bbb096c50354d52cc7e">vtkIdType</a> <a class="el" href="a00339.html#713f7e07f8b225649df483e125f49c13">vtkCosmicTreeLayoutStrategy::LayoutRoot</a><code> [protected]</code> </td>
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<p>Definition at line <a class="el" href="a04801.html#l00144">144</a> of file <a class="el" href="a04801.html">vtkCosmicTreeLayoutStrategy.h</a>.</p>
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<a class="anchor" name="e7571ffd932c866fcbf4f16cb11507ce"></a><!-- doxytag: member="vtkCosmicTreeLayoutStrategy::NodeSizeArrayName" ref="e7571ffd932c866fcbf4f16cb11507ce" args="" -->
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<td class="memname">char* <a class="el" href="a00339.html#e7571ffd932c866fcbf4f16cb11507ce">vtkCosmicTreeLayoutStrategy::NodeSizeArrayName</a><code> [protected]</code> </td>
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<p>Definition at line <a class="el" href="a04801.html#l00145">145</a> of file <a class="el" href="a04801.html">vtkCosmicTreeLayoutStrategy.h</a>.</p>
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<hr>The documentation for this class was generated from the following file:<ul>
<li>dox/Infovis/<a class="el" href="a04801.html">vtkCosmicTreeLayoutStrategy.h</a></ul>
</div>
<hr size="1"><address style="text-align: right;"><small>Generated on Wed Jun 3 18:58:34 2009 for VTK by
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