TypeError: Show argument 1: method requires a vtkSMSourceProxy, a vtkPythonAlgorithm was provided. The key thing to understand is that there are two levels of Python scripting available in ParaView. ParaView offers such advantages as volume rending capability, tensor glyphs, and parallel visualization for very large data. The lower level is where you can create or filter data with VTK. Capitalizing on these advantages, we have achieved the brilliant visualization of very large datasets with complicated internal porous structures in mechanical analyses in ParaView. The higher level lets you control the operation of ParaView, e.g., show data, set display properties, etc. What you are missing is a bridge between the two levels in your script. To get it to a place where ParaView can use it add the following: # how to put uGrid into the following codes In your original example, you are creating an unstructured grid in VTK just fine. # create a trivial producer to bridge between the VTK object and ParaView In order to view in Paraview, load the data, check all the check box underneath Cell arrays, include that one and finally select Surface representation. Important if it does not load select first Slice and then Surface. Tp.GetClientSideObject().SetOutput(uGrid) In this tutorial we only mention 2 out of the many possibles. This creates a ParaView proxy ( TrivialProducer) that is a proxy for a simple VTK data source called a vtkTrivialProducer. All it does is take a dataset and pass that to any downstream filters that request it. (Caveat: this only works when you are running in built-in server mode because of GetClientSideObject(), which is fairly common). There is also a problem with how you are defining cells. The first entry in a cell definition needs to be the number of points defining the cell. So change that line to cell = np.array(, ], dtype=np.The first step is reading your data into ParaView. ParaView can read in delimited text files as tables, which is essentially what you have. txt file, you can directly open the data. In the properties panel after you have opened the file, change the Field Delimiter Characters from a comma to a space.īy default, the reader assumes that you have a comma delimiter (i.e. Also, check the box next to Merge Consecutive Delimiters. The data are loaded in a table structure, and ParaView will initially show it in a spreadsheet view. You can convert it to a 3D grid with one of a pair of filters. You just select the x, y, and z columns and it will generate a set of discrete points in space. The second filter is Table To Structured Grid. In this filter you specify both the x, y, and z columns as well as the extent of a grid. It will then build a curvilinear grid of points based on the rows of data in the table.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |