<html><head><meta http-equiv="Content-Type" content="text/html charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;">Hi Guys,<div><div><br></div><div>I have several meshes in a scene, someone know how I can access to the actor in a vtkSelectionNode element. </div><div><br></div><div>I am using the following code to select some vertexes of the current view, but I want to know the actor that the vertexs belong.</div></div><div><pre class="de1"> vtkSmartPointer<span class="sy1"><</span>vtkHardwareSelector<span class="sy1">></span> selector <span class="sy1">=</span>
vtkSmartPointer<span class="sy1"><</span>vtkHardwareSelector<span class="sy1">></span><span class="sy4">::</span><span class="me2">New</span><span class="br0">(</span><span class="br0">)</span><span class="sy4">;</span>
selector<span class="sy2">-</span><span class="sy1">></span>SetRenderer<span class="br0">(</span>this<span class="sy2">-</span><span class="sy1">></span>Interactor<span class="sy2">-</span><span class="sy1">></span>GetRenderWindow<span class="br0">(</span><span class="br0">)</span><span class="sy2">-</span><span class="sy1">></span>GetRenderers<span class="br0">(</span><span class="br0">)</span><span class="sy2">-</span><span class="sy1">></span>GetFirstRenderer<span class="br0">(</span><span class="br0">)</span><span class="br0">)</span><span class="sy4">;</span>
<span class="kw4">int</span><span class="sy2">*</span> temp <span class="sy1">=</span> this<span class="sy2">-</span><span class="sy1">></span>Interactor<span class="sy2">-</span><span class="sy1">></span>GetRenderWindow<span class="br0">(</span><span class="br0">)</span><span class="sy2">-</span><span class="sy1">></span>GetSize<span class="br0">(</span><span class="br0">)</span><span class="sy4">;</span>
<span class="kw4">unsigned</span> <span class="kw4">int</span> windowSize<span class="br0">[</span><span class="nu0">4</span><span class="br0">]</span><span class="sy4">;</span>
windowSize<span class="br0">[</span><span class="nu0">0</span><span class="br0">]</span> <span class="sy1">=</span> temp<span class="br0">[</span><span class="nu0">2</span><span class="br0">]</span><span class="sy4">;</span>
windowSize<span class="br0">[</span><span class="nu0">1</span><span class="br0">]</span> <span class="sy1">=</span> temp<span class="br0">[</span><span class="nu0">3</span><span class="br0">]</span><span class="sy4">;</span>
windowSize<span class="br0">[</span><span class="nu0">2</span><span class="br0">]</span> <span class="sy1">=</span> temp<span class="br0">[</span><span class="nu0">0</span><span class="br0">]</span><span class="sy4">;</span>
windowSize<span class="br0">[</span><span class="nu0">3</span><span class="br0">]</span> <span class="sy1">=</span> temp<span class="br0">[</span><span class="nu0">1</span><span class="br0">]</span><span class="sy4">;</span>
selector<span class="sy2">-</span><span class="sy1">></span>SetArea<span class="br0">(</span>windowSize<span class="br0">)</span><span class="sy4">;</span>
selector<span class="sy2">-</span><span class="sy1">></span>SetFieldAssociation<span class="br0">(</span>vtkDataObject<span class="sy4">::</span><span class="me2">FIELD_ASSOCIATION_CELLS</span><span class="br0">)</span><span class="sy4">;</span>
vtkSelection<span class="sy2">*</span> selection <span class="sy1">=</span> selector<span class="sy2">-</span><span class="sy1">></span>Select<span class="br0">(</span><span class="br0">)</span><span class="sy4">;</span>
std<span class="sy4">::</span><span class="kw3">cout</span> <span class="sy1"><<</span> <span class="st0">"Selection has "</span> <span class="sy1"><<</span> selection<span class="sy2">-</span><span class="sy1">></span>GetNumberOfNodes<span class="br0">(</span><span class="br0">)</span> <span class="sy1"><<</span> <span class="st0">" nodes."</span> <span class="sy1"><<</span> std<span class="sy4">::</span><span class="me2">endl</span><span class="sy4">;</span></pre><pre class="de1"><span class="sy4"><div style="margin: 0px; font-size: 11px; font-family: Menlo;"><span class="Apple-tab-span" style="white-space:pre"> </span><span style="font-family: Helvetica; white-space: normal;">vtkSelectionNode</span> *node = selection-><span style="color: rgb(61, 29, 129);">GetNode</span>(<span style="color: rgb(39, 42, 216);">0</span>);</div></span></pre><div>Best regards,</div></div><div><br></div><div>Waldo.</div></body></html>