The post shows how to pass array from javascript to cpp function as parameter and how to use javascript to receive array from cpp function. We have to know the javascript TypedArray objects and different types of emscripten memory model Read more…
The shell script build vtk in the folder build, /home/stephen/Downloads/VTK-9.2.0.rc2/build: cmake ../ -G “Unix Makefiles” \ -DVTK_USE_QVTK:BOOL=ON \ -DCMAKE_INSTALL_PREFIX=/usr/local \ -DVTK_USE_GUISUPPORT:BOOL=ON \ -DVTK_QT_VERSION=5 \ -DModule_vtkGUISupportQt:BOOL=ON \ -DModule_vtkGUISupportQtOpenGL:BOOL=ON \ -DModule_vtkGUISupportQtSQL:BOOL=ON \ -DModule_vtkGUISupportQtWebkit:BOOL=OFF \ -DModule_vtkRenderingQt:BOOL=ON \ -DModule_vtkViewsQt:BOOL=ON The sources.list for Chinese user Read more…
We have added a new function to the image processing page: rotate the image clockwise by any angle.我们在图像处理页面增加了一个新的功能：顺时针旋转图片任意角度。 Our picture doesn’t awalys fit on the phone or computer monitor, so we need to put it right. We need to rotate Read more…
I had found a crash bug when use vtkContourWidget by webassembly in the post Crash Bug About vtkOpenGLPolyDataMapper::UpdateShaders In vtkAbstractWidget.As we know, SetResolveCoincidentTopologyToPolygonOffset for mapper can make web page crash, related post: The Interfaces In VTK Can’t Be Used With Read more…
The Interfaces In VTK Can’t Be Used With Webassembly Setting point size and line width doesn’t work vtkProperty.h Shift polygons, lines and points will fail in wasm. It will cause crash on web page. The new polydata generated by vtkFeatureEdge Read more…
I can’t display vtkContourWidget object on web page by wasm file.The following code snippet is very simple, create a circle and show it, we can modify it by vtkContourWidget object.The example works in CPlusCPlus program.VTK version: 9.0.2. But it will Read more…
We will introduce the transformation equation for 3D Coordinate Value XYZ And 2D Texture Coordinate UVR. Try to represent the UVR value by x,y, and z. Here is derivation process. Read more…
In the following example, we will create a function to compute number’s factorial result.Let’s echo in the function to support fetch return value outside. Output:
If you have a few zip files in a folder, and the zip file had compressed some child zips, the following shell script can help you to extract them. The compressed information in our example look like: Shell script: #! Read more…