From: Dave R. <dr...@ca...> - 2001-11-21 21:39:46
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I don't know tcl, but here's a simple C++ example (for VTK4.0) that shows the problem if anyone wants to convert it. #include <string> #include "vtkRenderer.h" #include "vtkRenderWindow.h" #include "vtkRenderWindowInteractor.h" #include "vtkVolume16Reader.h" #include "vtkPolyDataMapper.h" #include "vtkActor.h" #include "vtkOutlineFilter.h" #include "vtkCamera.h" #include "vtkContourFilter.h" #include <vtkStripper.h> #include "SaveImage.h" int main( int argc, char *argv[] ) { char *c = getenv("VTK_DATA"); string vtk_data; if (c != NULL) { vtk_data = string(c); } else { vtk_data = ""; } string filename = vtk_data + string("/headsq/quarter"); // create the renderer stuff vtkRenderer *aRenderer = vtkRenderer::New(); vtkRenderWindow *renWin = vtkRenderWindow::New(); renWin->AddRenderer(aRenderer); vtkRenderWindowInteractor *iren = vtkRenderWindowInteractor::New(); iren->SetRenderWindow(renWin); // read the volume vtkVolume16Reader *v16 = vtkVolume16Reader::New(); v16->SetDataDimensions(64,64); v16->SetDataByteOrderToLittleEndian(); v16->SetFilePrefix (filename.c_str()); v16->SetImageRange(1, 93); v16->SetDataSpacing (3.2, 3.2, 1.5); // extract the skin vtkContourFilter *skinExtractor = vtkContourFilter::New(); skinExtractor->SetInput(v16->GetOutput()); skinExtractor->SetValue(0, 500); vtkStripper *stripper = vtkStripper::New(); stripper->SetInput(skinExtractor->GetOutput()); vtkPolyDataMapper *skinMapper = vtkPolyDataMapper::New(); skinMapper->SetInput(stripper->GetOutput()); skinMapper->ScalarVisibilityOff(); skinMapper->ImmediateModeRenderingOn(); vtkActor *skin = vtkActor::New(); skin->SetMapper(skinMapper); // get an outline vtkOutlineFilter *outlineData = vtkOutlineFilter::New(); outlineData->SetInput(v16->GetOutput()); vtkPolyDataMapper *mapOutline = vtkPolyDataMapper::New(); mapOutline->ImmediateModeRenderingOn(); mapOutline->SetInput(outlineData->GetOutput()); vtkActor *outline = vtkActor::New(); outline->SetMapper(mapOutline); outline->GetProperty()->SetColor(0,0,0); // create a camera with the correct view up vtkCamera *aCamera = vtkCamera::New(); aCamera->SetViewUp (0, 0, -1); aCamera->SetPosition (0, 1, 0); aCamera->SetFocalPoint (0, 0, 0); aCamera->ComputeViewPlaneNormal(); // now, tell the renderer our actors aRenderer->AddActor(outline); aRenderer->AddActor(skin); aRenderer->SetActiveCamera(aCamera); aRenderer->ResetCamera (); aCamera->Dolly(1.5); aRenderer->SetBackground(1,1,1); aRenderer->ResetCameraClippingRange(); // interact with data renWin->SetSize( 300, 300); renWin->Render(); iren->Start(); } Dave > X-Sender: bil...@po... > From: "William A. Hoffman" <bil...@ny...> > > Can someone check in a tcl script that shows this problem as a VTK test? > We run a nightly build of both VTK and Mesa from cvs. Right now all the > tests are > passing. > > -Bill > > > At 12:42 PM 11/21/2001 -0700, Brian Paul wrote: > >Prabhu Ramachandran wrote: > > > > > > >>>>> "BP" == Brian Paul <bri...@ya...> writes: > > > > > This will show you missing polygons above the lip and below the nose. > > > > > > I also see random disappearance of actors > > > >What is an "actor"? > > > > > > > at times with some of my > > > Python scripts but am unable to replicate it. Will let you know when > > > I am able to get a repeatable error. > > > > > > BP> I'm building from the vtk32-src-unix.tgz source archive but I > > > BP> have no idea where to get the (non-RPM) "data files" from. > > > > > > Go to http://public.kitware.com/VTK/get-software.php and grab the data > > > files there the files are of the form: vtk20data.part* > > > >Is there a mirror ftp from which I can get these files? The kitware > >ftp site has been _really_ slow (1KB/s). > > > >-Brian > > > >Do You Yahoo!? > >Get your free @yahoo.com address at http://mail.yahoo.com > > > >Please keep messages on-topic. Check the FAQ at: > ><http://public.kitware.com/cgi-bin/vtkfaq> > > > |