[vtkusers] GetNumberOfPoints() of vtkPoints

[David Cole]

On Fri, Oct 24, 2008 at 1:00 PM, Ming Chao <mingchao2005 at gmail.com> wrote:


> It appears you recommend to leave the env variable untouched, but would
> rather copy dlls into the .exe directory. But the problems is that for every
> project using vtk I have to copy them. Isn't that awkward? What is the
> disadvantage of setting environment variables?
>

How long did you spend thinking there was a problem when there wasn't one?
Wasted time is the primary disadvantage of setting environment variables for
finding DLLs.

If you do want to set it via environment variables, at least set it
locally... (In a customized command prompt or just within your Visual Studio
solution.) That way, you won't get confused again two years from now when
you've built another new build of VTK and are trying to get another
application running.

The other secondary disadvantage of using environment variables to select a
build of VTK dlls is when you have multiple builds of VTK that you are
switching between. Whenever you switch an environment variable you have to
kill all the processes that have a copy of the old value in them and then
restart them. To me, it just seems easier to say "I will always get VTK dlls
from the same directory as my exe" and *never* think about the PATH env var
again.

Hopefully, this makes some sense...
David
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