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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='color:#1F497D'>The problem is still there. I am very confused why just pos[3] is not correct. If anyone of you have experienced the similar problem, please share your idea with me. I would appreciate a lot!<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p>&nbsp;</o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Thanks<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p>&nbsp;</o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b><span lang=ZH-CN style='font-size:10.0pt;font-family:宋体'>发件人</span></b><b><span style='font-size:10.0pt;font-family:宋体'>:</span></b><span style='font-size:10.0pt;font-family:宋体'> insight-users-bounces@itk.org [mailto:insight-users-bounces@itk.org] <b><span lang=ZH-CN>代表 </span></b>Xiaopeng Yang<br><b><span lang=ZH-CN>发送时间</span>:</b> 2011</span><span lang=ZH-CN style='font-size:10.0pt;font-family:"Batang","serif"'>년</span><span style='font-size:10.0pt;font-family:宋体'> 1</span><span lang=ZH-CN style='font-size:10.0pt;font-family:"Batang","serif"'>월</span><span style='font-size:10.0pt;font-family:宋体'> 11</span><span lang=ZH-CN style='font-size:10.0pt;font-family:"Batang","serif"'>일</span><span lang=ZH-CN style='font-size:10.0pt;font-family:宋体'> </span><span lang=ZH-CN style='font-size:10.0pt;font-family:"Batang","serif"'>화요일</span><span lang=ZH-CN style='font-size:10.0pt;font-family:宋体'> </span><span lang=ZH-CN style='font-size:10.0pt;font-family:"Batang","serif"'>오후</span><span style='font-size:10.0pt;font-family:宋体'> 6:44<br><b><span lang=ZH-CN>收件人</span>:</b> 'vtk'; insight-users@itk.org<br><b><span lang=ZH-CN>主题</span>:</b> [Insight-users] Problem in obtaining world position with vtkSeedWidget<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p>&nbsp;</o:p></p><p class=MsoNormal>Dear Users,<o:p></o:p></p><p class=MsoNormal><o:p>&nbsp;</o:p></p><p class=MsoNormal>I am trying to get world position by SeedRepresentation-&gt;GetSeedWorldPosition(I, pos). But comparing with other software, I got the wrong value in z coordinate. The values of x and y coordinates are correct. I would appreciate if anyone can point me in the right direction. <o:p></o:p></p><p class=MsoNormal><o:p>&nbsp;</o:p></p><p class=MsoNormal>Thanks,<o:p></o:p></p><p class=MsoNormal>Yang<o:p></o:p></p><p class=MsoNormal><o:p>&nbsp;</o:p></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe;color:blue'>class</span><span style='font-size:10.0pt;font-family:DotumChe'> vtkSeedCallback : <span style='color:blue'>public</span> vtkCommand<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'>{<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'>&nbsp; <span style='color:blue'>public</span>:<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'>&nbsp;&nbsp;&nbsp; <span style='color:blue'>static</span> vtkSeedCallback *New()<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'>&nbsp;&nbsp;&nbsp; { <o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span style='color:blue'>return</span> <span style='color:blue'>new</span> vtkSeedCallback; <o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'>&nbsp;&nbsp;&nbsp;&nbsp;}<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'><o:p>&nbsp;</o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'>&nbsp;&nbsp;&nbsp;&nbsp;vtkSeedCallback() {}<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'><o:p>&nbsp;</o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'>&nbsp;&nbsp;&nbsp;&nbsp;<span style='color:blue'>virtual</span> <span style='color:blue'>void</span> Execute(vtkObject*, <span style='color:blue'>unsigned</span> <span style='color:blue'>long</span> <span style='color:blue'>event</span>, <span style='color:blue'>void</span> *calldata)<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'>&nbsp;&nbsp;&nbsp; {<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <span style='color:blue'>if</span>(<span style='color:blue'>event</span> == vtkCommand::PlacePointEvent)<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; std::cout &lt;&lt; <span style='color:#A31515'>&quot;Point placed, total of: &quot;</span> <o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&lt;&lt; <span style='color:blue'>this</span>-&gt;SeedRepresentation-&gt;GetNumberOfSeeds() &lt;&lt; std::endl;<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <span style='color:blue'>if</span>(<span style='color:blue'>event</span> == vtkCommand::InteractionEvent)<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <span style='color:blue'>if</span>(calldata)<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; std::cout &lt;&lt; <span style='color:#A31515'>&quot;Interacting with seed : &quot;</span> <o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&lt;&lt; *(<span style='color:blue'>static_cast</span>&lt; <span style='color:blue'>int</span> * &gt;(calldata)) &lt;&lt; std::endl;<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'>&nbsp; <o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;std::cout &lt;&lt; <span style='color:#A31515'>&quot;List of seeds (Display coordinates):&quot;</span> &lt;&lt; std::endl;<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp; <o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span style='color:blue'>for</span>(vtkIdType i = 0; i &lt; <span style='color:blue'>this</span>-&gt;SeedRepresentation-&gt;GetNumberOfSeeds(); i++)<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <span style='color:blue'>double</span> pos[3];<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <span style='color:blue'>this</span>-&gt;SeedRepresentation-&gt;GetSeedWorldPosition(i, pos);<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:DotumChe'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; std::cout &lt;&lt; <span style='color:#A31515'>&quot;(&quot;</span> &lt;&lt; pos[0] &lt;&lt; <span style='color:#A31515'>&quot; &quot;</span> &lt;&lt; pos[1] &lt;&lt; <span style='color:#A31515'>&quot; &quot;</span> &lt;&lt; pos[2] &lt;&lt; <span style='color:#A31515'>&quot;)&quot;</span> &lt;&lt; std::endl;<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'>&nbsp;&nbsp;&nbsp;&nbsp; }<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'><o:p>&nbsp;</o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'>&nbsp;&nbsp;&nbsp;&nbsp;<span style='color:blue'>void</span> SetRepresentation(vtkSmartPointer&lt;vtkSeedRepresentation&gt; rep) {<span style='color:blue'>this</span>-&gt;SeedRepresentation = rep;}<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'>&nbsp;&nbsp;&nbsp; <span style='color:blue'>private</span>:<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:DotumChe'>&nbsp;&nbsp;&nbsp; vtkSmartPointer&lt;vtkSeedRepresentation&gt; SeedRepresentation;<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:DotumChe'>};</span><o:p></o:p></p></div></body></html>