paraview 如何读取 vtk 文件? [英] How does paraview read a vtk file?

问题描述

我有一个关于 paraview 如何读取 ASCII UNSTRUCTURED_GRID 的一般问题.

I have a general question as to how paraview reads a ASCII UNSTRUCTURED_GRID.

它是否对单元格进行排序然后点?还是点然后单元格?

Does it sort through the cells and then points? or points then cells?

推荐答案

Paraview 是建立在 VTK 库之上的，两者都是开源的，所以如果你是一个程序员，你应该可以通过阅读得到你所有的答案编码.我的假设(但我可能是错的，请检查 paraview 来源 以确保)paraview 用于阅读ASCII 非结构化网格是 vtkUnstructuredGridReader，源代码你可以在这里找到:https://github.com/Kitware/VTK/blob/master/IO/Legacy/vtkUnstructuredGridReader.cxx(这是实现阅读器使用的许多功能的父类https://github.com/Kitware/VTK/blob/master/IO/Legacy/vtkDataReader.cxx).看RequestData方法，变量output"就是输出的非结构化数据.

Paraview is built on the VTK library and both of them are open source, so if you are a programmer, you should be able to get all your answers by reading the code. What I assume (but I can be wrong, check sources of paraview to be sure) paraview uses for reading ASCII unstructured grids is vtkUnstructuredGridReader, source code of which you can find here: https://github.com/Kitware/VTK/blob/master/IO/Legacy/vtkUnstructuredGridReader.cxx (and here is the parent class that implements a lot of the functionality the reader uses https://github.com/Kitware/VTK/blob/master/IO/Legacy/vtkDataReader.cxx). Look at the RequestData method, the variable "output" is the outputted unstructured data.

简单回答您最初的问题，看起来像在单元格之前读取点.

To briefly answer your initial question, it looks like points are read before cells.

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