[vtkusers] data files and vtk 4.0

[Sebastien BARRE]

At 11/11/01 05:48 PM, Christopher R. Volpe wrote:

>So, I'm a bit confused about the different data repositories (big "vtkdata"
>versus little "VTKData") and their intent. Is "vtkdata" now defunct, and
>replaced entirely by "VTKData"?

Yes, VTKData is now intended for VTK 4.x (release within a month or so)
vtkdata was the old data for VTK 3.x.

>  If so, why did 90% of the data vanish?

The regression images did not vanish, they shrunk :) That's a good thing. 
We are now using the PNG format to store them.

As David pointed, the dataset shrunk too because we are trying to make it 
as small as possible. We do not need 512x512 picture or a big dataset if a 
test can be made in the same way (and faster) on a smaller image or 
dataset. I guess you have noticed that VTK 4.x is organized in a very 
different way compared to 3.x. We have reviewed all 3.x tests and 
dispatched them into the Testing subdirs in each component directory 
(Comment, Graphics, etc.). Examples are in the root Examples/ directory. We 
are adding data to vtkData when data is required for a given test or example.

>If
>not, why give them names differing only in capitalization, thereby forcing
>Windows users to jump through hoops to do checkouts of each from the same
>location?

Yes, I know it's tricky. Same for the "VTK" CVS module which is VTK 4.x, 
whereas the "vtk" module is 3.x. The problem was reported in the developers 
list long ago, but at this time it was too late.

>  Also, what about example scripts that utilized those datafiles?
>The liquid oxygen post dataset is gone from VTKData, as are the LOx*.tcl
>example scripts. Are they gone for a reason? What's the deal?

I do not know about these files, but as said, if they are not used in the 
VTK 4.x, then you probably won't find them in vtkData, but they will remain 
in vtkdata.


--
Sebastien Barre