![]() Originally, instead of NaN there are zeros, but I just need blanks without changing the shape of the matrix, which is why I use NaN, but it gives me error in paraview. I make the vtk file in matlab by extracting the information from a. Sadly I can not import the whole file, but here is an example: The following should be the correct representation of that:įrom: ParaView on behalf of "Doina Gumeniuc (224252 MAHS)" In the example you sent us, I presume that you mean to have 4 line cells with 2, 3, 2, and 2 vertices, respectively. It looks like you can solve your problem by simply not writing out the NaN’s in the fill. The LINES connectivity list allows you to vary the length of the line chain. However, I do not see why you need NaN at all. It worked fine.) However, you are trying to introduce NaN’s in a list of integer connections, which is just wrong on many levels. To: Doina Gumeniuc (224252 MAHS) Mathieu Westphal paraview at So my question would be again, is it possible to replace it with anything else? If I ask matlab to delete the zeros from my file, the shape of the matrix will change, so the only solution I found so far is to replace the zeros by NaNs in matlab, which gives me error in paraview, for the reason you, Moreland, explained. There is a bit of a problem though: In reality, this file is much more bigger and deleting the NaNs by hand is not an option (also I am trying to make it all happen automatically). Here is a capture of what that would look like.NaN values Doina Gumeniuc (224252 MAHS) 224252 at via.dk Turn on the visibility of your Delaunay 2D filter and change the representation (combo box in the middle of the second toolbar) to Surface LIC. Once it is loaded Close the plugin manager and then go back to your data. Then select the SurfaceLIC plugin and click Load Selected. To enable it, go to Tools -> Manage Plugins. ParaView contains a plugin that can draw LIC surfaces. ![]() This will densely draw draw lines everywhere on a surface. If you really want to see the stream everywhere, you may be looking for a visualization technique called Line Integral Convolution or LIC for short. (Keep in mind, though, the where you place the seed points will dramatically affect what streamlines get generated.) That might mean that the flow is simply not going into that area. Thus, if the streamlines are not covering a part of your data, that means that none of the particles traveled to that region of space. (It also traces it backward to find its origin as well.) It does this for 50 particles spaced evenly across that line defined in space. In the case of the ParaView filter you are using, the filter takes a particle that starts on the line you put in space and then traces that particle has the vector field moves it around. That description is not very mathematically precise (which is why you’ll often hear it defined in other terms), but I think it is a fairly intuitive way to think of it. As the particle gets pushed through space, we trace the path that the particle travels. That is, the vector at the particles location determines its exact speed and direction. You take a weightless particle and move it around by the vector field. The Wikipedia article on streamlines is as detailed an introduction as any other I know of, but here is the idea of streamlines in a nutshell:
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |