[vtk-developers] disabling png

[Bill Lorensen]

You can build your app my selecting which components you need from a built VTK.
For example, I have an app that just uses these components:
find_package(VTK COMPONENTS
  vtkFiltersGeneral
  vtkFiltersGeometry
  vtkIOGeometry
  vtkIOImage
  vtkIOLegacy
  vtkImagingStatistics
  vtkInteractionWidgets
  vtkRenderingOpenGL2
)

You can also build a VTK that is stripped down. I'm not sure which use
case you have...


On Sat, Nov 19, 2016 at 1:28 PM, Mario Emmenlauer <mario at emmenlauer.de> wrote:
>
> What you say makes perfect sense! But actually I just realized that VTK
> offers quite a bit more functionality than I use, and some of this comes
> (for me) at the price of dll-hell (or the equivalent on Linux :-) ).
>
> I guess what I'm really looking for would be VTK_DISABLE_IMAGE_READERS
> for hdf5, netcdf, tiff, png, ogg, json and similar, leaving mostly the
> rendering and interactors etc and their dependencies in place. I found
> options to disable Tk, Java, Python. Are there options to further strip
> down VTK, or tune it to specific use cases?
>
> All the best,
>
>     Mario
>
>
>
>
> On 19.11.2016 18:40, Bill Lorensen wrote:
>> Just be careful with these system libraries. Sne th9ird party packages
>> change their api's, so we can really only guarantee results with those
>> that we include with vtk.
>>
>>
>> On Sat, Nov 19, 2016 at 12:31 PM, Mario Emmenlauer <mario at emmenlauer.de> wrote:
>>>
>>> Dear Utkarsh,
>>>
>>> oh my, thanks a lot, exactly what I need! Great! And there are a
>>> bunch more VTK_USE_SYSTEM_XXX options that I did not find before,
>>> great!
>>>
>>> Cheers,
>>>
>>>     Mario
>>>
>>>
>>> On 19.11.2016 18:13, Utkarsh Ayachit wrote:
>>>> You can tell VTK to use system PNG. Set VTK_USE_SYSTEM_PNG CMake variable to ON.
>>>>
>>>> Utkarsh
>>>>
>>>> On Sat, Nov 19, 2016 at 11:53 AM, Mario Emmenlauer <mario at emmenlauer.de> wrote:
>>>>>
>>>>> I've just tracked down an issue for quite a while and found that
>>>>> VTK brings its own PNG library! This is causing my quite a head-
>>>>> ache. I've googled and read the CMakeLists.txt, but could not find
>>>>> how to disable it. Can you please help?
>>>>>
>>>>> How to disable VTK's internal libpng?
>>>>>
>>>>> Thanks for your help,
>>>>>
>>>>>     Mario
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>



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