[vtkusers] plot height field figure

[zhixiu li]

Dear All,
I have a dataset like this (in data.txt)
1 0 0
2 0 0
1 2 3
1 2 3
...
the 1st column is x and the second col is y. the last column is the
attribute of this point. I want to make a 3 D plot for each points(Z will
the attribute value).
How do I read this data file to VTK? Thank you very much!

tianbu
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