vtk

I've been given a legacy format vtk file (I think its an unstructured grid) and I'd like to read it in with python and output a .npy file instead, since I know how to deal with that. The file is a dump from ATHENA and so has density, velocity, magnetic field along with the coordinates. I'm very much a procedural programmer, so all these objects are confusing... Ben Jackel Here is the solution that I came up with, the trick was turning on ReadAllVectorsOn(). import numpy from vtk import vtkStructuredPointsReader from vtk.util import numpy_support as VN reader = vtkStructuredPointsReader()

For those that want to export a simple 3D numpy array (along with axes) to a .vtk (or .vtr) file for post-processing and display in Paraview or Mayavi there's a little module called PyEVTK that does exactly that. The module supports structured and unstructured data etc.. Unfortunately, even though the code works fine in unix-based systems I couldn't make it work (keeps crashing) on any windows installation which simply makes things complicated. Ive contacted the developer but his suggestions did not work Therefore my question is: How can one use the from vtk.util import numpy_support function

I know almost nothing about CMake. What I'm trying to do is to use VTK with Qt. Unfortunately, I'm stuck at the CMake part. For some reason, when I press "configure", I get the following error: CMake Error at GUISupport/Qt/CMakeLists.txt:58 (find_package): By not providing "FindQt5Widgets.cmake" in CMAKE_MODULE_PATH this project has asked CMake to find a package configuration file provided by "Qt5Widgets", but CMake did not find one. Could not find a package configuration file provided by "Qt5Widgets" with any of the following names: Qt5WidgetsConfig.cmake qt5widgets-config.cmake Add the

在读取.VTK文件的时候出现如标题错误，代码如下 1 #include<vtkSmartPointer.h> 2 #include<vtkRenderWindow.h> 3 #include<vtkRenderer.h> 4 #include<vtkRenderWindowInteractor.h> 5 #include<vtkInteractorStyleTrackballCamera.h> 6 #include<vtkCylinderSource.h> 7 #include<vtkPolyDataMapper.h> 8 #include<vtkActor.h> 9 #include<vtkLight.h> 10 #include<vtkCamera.h> 11 #include<vtkJPEGReader.h> 12 #include<vtkTexture.h> 13 #include<vtkPlaneSource.h> 14 #include<vtkStructuredPointsReader.h> 15 #include<vtkMarchingCubes.h> 16 #include "vtkOpenGLRenderWindow.h" 17 18 void showMarchingCubes() 19 { 20 vtkSmartPointer

() 1 #include<vtkSmartPointer.h> 2 #include<vtkRenderWindow.h> 3 #include<vtkRenderer.h> 4 #include<vtkRenderWindowInteractor.h> 5 #include<vtkInteractorStyleTrackballCamera.h> 6 #include<vtkCylinderSource.h> 7 #include<vtkPolyDataMapper.h> 8 #include<vtkActor.h> 9 10 #include "vtkAutoInit.h" 11 12 VTK_MODULE_INIT(vtkRenderingOpenGL2); // VTK was built with vtkRenderingOpenGL2 13 VTK_MODULE_INIT(vtkInteractionStyle); 14 //https://blog.csdn.net/thecentry/article/details/79111295 15 int main() 16 { 17 vtkSmartPointer<vtkCylinderSource>cylinder = vtkSmartPointer<vtkCylinderSource>::New(); 18

The extremely helpful guidelines posted at http://www.vtk.org/Wiki/Cocoa_VTK and via the readme file by Sean McBride and Mike Jackson inside the VTK repo were slightly out of date for VTK 6.1. So in case this helps anybody, I'm posting instructions for installing VTK 6.1 on OSX 10.8 with support for the SimpleCocoaVTK Xcode project. Angus Forbes * Installing VTK 6.1 for OSX 10.8 with Cocoa support * These instructions slightly modify Ryan Glover's instructions at http://www.vtk.org/Wiki/Cocoa_VTK and the README.rtf in the VTK/Examples/GUI/Cocoa/Documentation folder by Sean McBride and Mike

I'm trying to make a video of the trajectories of particles. However, somehow my scene never updates. Here's a very simple example: from __future__ import absolute_import, division, print_function from mayavi import mlab import numpy as np import math alpha = np.linspace(0, 2*math.pi, 100) xs = np.cos(alpha) ys = np.sin(alpha) zs = np.zeros_like(xs) mlab.points3d(0,0,0) plt = mlab.points3d(xs[:1], ys[:1], zs[:1]) @mlab.animate(delay=100) def anim(): f = mlab.gcf() while True: for (x, y, z) in zip(xs, ys, zs): print('Updating scene...') plt.mlab_source.x[0] = x plt.mlab_source.y[0] = y plt.mlab