VTK 3.1 final

Hugo Korwaser hugo.korwaser at dspace.co.uk
Mon Mar 27 13:17:01 EST 2000


Hi,
congratulations on getting VTK3.1 out. I am confused that the
announcement is dated the 26th March but all the 'code' in the directory
is dated the 9th March. Is the announcement just a little bit delayed or
will a new set of files in placed in the directory?

Regards

Hugo

Ken Martin wrote:
> 
> VTK 3.1 is final and there are tar zip and windows binaries available at
> ftp://public.kitware.com/pub/vtk and hopefully the folks at GE can whip
> together an RPM for Linux. From the VTK 3.1 beta many recent bug fixes have
> been incorporated. Right now a summary list of changes between VTK 2.4 and
> VTK3.1 does not exist. In general there have been a number of bug fixes, a
> complete overhaul of the imaging and geometry pipeline to better support
> streaming of data.  Better Python support in many areas. Upgraded to work
> with Tcl 8.1 and 8.2. New methods for type information and safe downcasting
> (not using RTTI yet) Better handling of method lookups for wrapped classes
> in Tcl. UNIX builds no longer require the Tcl/Tk source to use the
> TkWidgets. Support for off-screen rendering using Mesa.  etc. You can also
> obtain VTK 3.1 by anonymous CVS as follows
> 
> cvs -d :pserver:anonymous at public.kitware.com:/vtk/cvsroot login
> 
> vtk
> 
> cvs -d :pserver:anonymous at public.kitware.com:/vtk/cvsroot checkout -r
> release-3-1 vtk
> 
> Usage Changes
> ===============
> There are some incompatibilities between VTK 2.4 and VTK 3.1.  If you were
> using the SetMemoryLimit of an imaging filter in VTK 2.4 you should now use
> the vtkImageStreamer filter. The new pipeline architecture can compute the
> total memory usage for the entire pipeline, making it easier to specify
> streaming by providing one memory limit for the entire upstream pipeline,
> not just for the direct input of a filter. I'm sure there are a few other
> changes I'm forgetting.
> 
> Class Writer Changes
> ==================
> Due to the new pipeline architecture some filter method names have
> changed.  In many cases the old methods have been left around and now
> produce a warning (and instructions on the new change) when used. For many
> filters no changes will be required.
> 
> There is a new macro (vtkTypeMacro) being used to provide the GetClassName,
> IsA, and SafeDownCast methods, just take a look at an existing class such
> as vtkProp.h
> 
> - Ken
> 
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