<div dir="ltr">I don't know why ParaView seems faster in your use case.<div><br></div><div>Seb</div></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Mon, May 6, 2013 at 10:19 AM, Thibault Varacca <span dir="ltr"><<a href="mailto:thibault.varacca@gmail.com" target="_blank">thibault.varacca@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div><div><div>Ok thank you !<br></div>I have another question: when I use the "contour" filter on paraview it is very faster than when i code it with vtk.<br>
</div>Is there a possibility to "parallelize" the execution ? Do you know some documentation about it?<br>
</div>Thanks a lot !<br></div><div class="HOEnZb"><div class="h5"><div class="gmail_extra"><br><br><div class="gmail_quote">2013/5/6 Sebastien Jourdain <span dir="ltr"><<a href="mailto:sebastien.jourdain@kitware.com" target="_blank">sebastien.jourdain@kitware.com</a>></span><br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Which version of VTK and do you have the hybrid library inside your set of vtk libraries ?<div><br></div>
<div>Moreover, instead of calling </div><div><div><br></div><div><span style="font-family:arial,sans-serif;font-size:13px">try {</span><br style="font-family:arial,sans-serif;font-size:13px">
<span style="font-family:arial,sans-serif;font-size:13px"> Class.forName("vtk.vtkPanel");</span><br style="font-family:arial,sans-serif;font-size:13px"><span style="font-family:arial,sans-serif;font-size:13px"> } catch (ClassNotFoundException e) {</span><br style="font-family:arial,sans-serif;font-size:13px">
<span style="font-family:arial,sans-serif;font-size:13px"> e.printStackTrace();</span><br style="font-family:arial,sans-serif;font-size:13px"><span style="font-family:arial,sans-serif;font-size:13px"> }</span><br>
</div><div><span style="font-family:arial,sans-serif;font-size:13px"><br></span></div></div><div><span style="font-family:arial,sans-serif;font-size:13px">You should rely on that instead:</span></div><div><span style="font-family:arial,sans-serif;font-size:13px"><br>
</span></div><div>vtkNativeLibrary.LoadAllNativeLibraries();<span style="font-family:arial,sans-serif;font-size:13px"><br></span></div><div><br></div><div>Seb</div></div><div class="gmail_extra"><br><br>
<div class="gmail_quote"><div><div>On Mon, May 6, 2013 at 8:59 AM, Thibault Varacca <span dir="ltr"><<a href="mailto:thibault.varacca@gmail.com" target="_blank">thibault.varacca@gmail.com</a>></span> wrote:<br>
</div></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div>
<div dir="ltr"><div><div><div><div><div>Hello everybody,<br><br></div>I have .raw (binary) files which are segmented data. I load it with a .mhd file and want to convert it to polydata to finally apply the marching cubes filter. <br>
</div>but i have the following error :<br><br># JRE version: 7.0_21-b11<br># Java VM: Java HotSpot(TM) 64-Bit Server VM (23.21-b01 mixed mode windows-amd64 compressed oops)<br># Problematic frame:<br># C [vtkHybrid.dll+0x5db28] vtkImageToPolyDataFilter::ProcessImage+0x18<br>
#<br># Failed to write core dump. Minidumps are not enabled by default on client versions of Windows<br>#<br># If you would like to submit a bug report, please visit:<br># <a href="http://bugreport.sun.com/bugreport/crash.jsp" target="_blank">http://bugreport.sun.com/bugreport/crash.jsp</a><br>
# The crash happened outside the Java Virtual Machine in native code.<br># See problematic frame for where to report the bug.<br><br></div>Here is my code:<br><br>import java.lang.reflect.InvocationTargetException;<br><br>
import javax.swing.SwingUtilities;<br><br>import vtk.vtkActor;<br>import vtk.vtkImageData;<br>import vtk.vtkImageToPolyDataFilter;<br>import vtk.vtkMarchingCubes;<br>import vtk.vtkMetaImageReader;<br>import vtk.vtkPolyDataMapper;<br>
import vtk.vtkRenderWindow;<br>import vtk.vtkRenderWindowInteractor;<br>import vtk.vtkRenderer;<br>import vtk.vtkSTLWriter;<br>import vtk.vtkVoxelModeller;<br><br>public class MeshVtk implements Runnable {<br><br> @Override<br>
public void run() {<br><br> String filename = "ressources\\output_piston.xy.mhd";<br> vtkVoxelModeller voxelModeller = new vtkVoxelModeller();<br> vtkMarchingCubes marchingcubes = new vtkMarchingCubes();<br>
vtkRenderer renderer = new vtkRenderer();<br> vtkRenderWindow renderWindow = new vtkRenderWindow();<br> vtkRenderWindowInteractor interactor = new vtkRenderWindowInteractor();<br> vtkPolyDataMapper mapper = new vtkPolyDataMapper();<br>
vtkActor actor = new vtkActor();<br> double bounds[] = new double[] {};<br><br> /* reader */<br> vtkMetaImageReader reader = new vtkMetaImageReader();<br> reader.SetFileName(filename);<br>
reader.Update();<br><br> vtkImageData img = new vtkImageData();<br> img = reader.GetOutput();<br><br> vtkImageToPolyDataFilter img2poly = new vtkImageToPolyDataFilter();<br> img2poly.SetInput(img);<br>
img2poly.DecimationOn();<br> img2poly.SetError(0);<br> img2poly.DecimationOn();<br> img2poly.SetDecimationError(0.0);<br> img2poly.Update();<br><br> bounds = reader.GetOutput().GetBounds(); /* bounds */<br>
<br> for (int i = 0; i < 6; i += 2) {<br> double range = bounds[i + 1] - bounds[i];<br> bounds[i] = bounds[i] - .1 * range;<br> bounds[i + 1] = bounds[i + 1] + .1 * range;<br> }<br>
<br> voxelModeller.SetSampleDimensions(75, 75, 75);<br> voxelModeller.SetModelBounds(bounds);<br> voxelModeller.SetScalarTypeToFloat();<br> voxelModeller.SetMaximumDistance(.1);<br><br> voxelModeller.SetInput(reader.GetOutput());<br>
<br> /* marching cubes */<br> marchingcubes.SetInput(voxelModeller.GetOutput());<br> marchingcubes.ComputeNormalsOn();<br> marchingcubes.SetValue(0, 1);<br><br> renderer.SetBackground(.1, .2, .3);<br>
<br> renderWindow.AddRenderer(renderer);<br><br> interactor.SetRenderWindow(renderWindow);<br><br> mapper.SetInput(marchingcubes.GetOutput());<br><br> actor.SetMapper(mapper);<br><br> renderer.AddActor(actor);<br>
renderWindow.Render();<br> interactor.Start();<br><br> vtkSTLWriter writer = new vtkSTLWriter();<br> writer.SetFileTypeToBinary();<br> writer.AddInputConnection(marchingcubes.GetOutputPort());<br>
writer.SetFileName("ressources\\output_piston.xy.stl");<br> writer.Write();<br><br> }<br><br> public static void main(String[] args) {<br> try {<br> Class.forName("vtk.vtkPanel");<br>
} catch (ClassNotFoundException e) {<br> e.printStackTrace();<br> }<br><br> try {<br> SwingUtilities.invokeAndWait(new MeshVtk());<br> } catch (InvocationTargetException | InterruptedException e) {<br>
e.printStackTrace();<br> }<br> }<br><br>}<br><br></div>I hope somebody could help me to fix this.<br><br></div>Regards,<span><font color="#888888"><br clear="all"><div><div><div><div>
<div><div><br>-- <br>Thibault Varacca<br>EFREI Promo 2014<br>
<div>06 60 53 11 35</div>
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</blockquote></div><br><br clear="all"><br>-- <br>Thibault Varacca<br>EFREI Promo 2014<br><div>06 60 53 11 35</div>
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