[vtkusers] Minimizing VTK footprint (Java Web Start application)

[Marco Sambin]

Hi all.
I beg your pardon in advance for my long email post...

I am using VTK from a Java Web Start application I've written.

In order to support a possibly trouble-free deployment for my web users, I
am packaging vtk.jar and the related VTK native libraries into signed JAR
files, to be passed as external resources through the JNLP descriptor,
differentiating these resources based on OS and architecture
(32-bit/64-bit, Windows/Mac/Linux).

Now, considering that my application is a Java Web Start application which
may be used also through low-bandwidth Internet links, I am trying to
minimize the footprint of VTK, in particular by trying to reduce the number
of VTK native libraries to include.

Currently in my application I make direct use of the following VTK classes:

vtkImageData
vtkImageReader2
vtkDataArray
vtkUnsignedShortArray
vtkUnsignedCharArray
vtkCanvas
vtkImagePlaneWidget
vtkImageReslice
vtkOrientationMarkerWidget
vtkAnnotatedCubeActor
vtkRenderer
vtkCamera
vtkGenericRenderWindowInteractor

I've built VTK on Win 64-bit platform through Visual Studio 2010 (starting
from CMake), enabling th "VTK_Group_Imaging", "VTK_Group_Rendering",
"VTK_Group_StandAlone" and "VTK_WRAP_JAVA" CMake options.

Checking the dependencies of each produced .dll file with the
DependencyWalker utility, I've ended up with the following "minimal" list
of required DLLs for my application:

vtkalglib-6.0.dll
vtkCommonComputationalGeometry-6.0.dll
vtkCommonComputationalGeometryJava.dll
vtkCommonCore-6.0.dll
vtkCommonCoreJava.dll
vtkCommonDataModel-6.0.dll
vtkCommonDataModelJava.dll
vtkCommonExecutionModel-6.0.dll
vtkCommonExecutionModelJava.dll
vtkCommonMath-6.0.dll
vtkCommonMathJava.dll
vtkCommonMisc-6.0.dll
vtkCommonMiscJava.dll
vtkCommonSystem-6.0.dll
vtkCommonSystemJava.dll
vtkCommonTransforms-6.0.dll
vtkCommonTransformsJava.dll
vtkDICOMParser-6.0.dll
vtkexpat-6.0.dll
vtkFiltersCore-6.0.dll
vtkFiltersCoreJava.dll
vtkFiltersExtraction-6.0.dll
vtkFiltersExtractionJava.dll
vtkFiltersGeneral-6.0.dll
vtkFiltersGeneralJava.dll
vtkFiltersGeometry-6.0.dll
vtkFiltersGeometryJava.dll
vtkFiltersHybrid-6.0.dll
vtkFiltersHybridJava.dll
vtkFiltersModeling-6.0.dll
vtkFiltersModelingJava.dll
vtkFiltersSources-6.0.dll
vtkFiltersSourcesJava.dll
vtkFiltersStatistics-6.0.dll
vtkFiltersStatisticsJava.dll
vtkfreetype-6.0.dll
vtkftgl-6.0.dll
vtkImagingColor-6.0.dll
vtkImagingColorJava.dll
vtkImagingCore-6.0.dll
vtkImagingCoreJava.dll
vtkImagingFourier-6.0.dll
vtkImagingFourierJava.dll
vtkImagingGeneral-6.0.dll
vtkImagingGeneralJava.dll
vtkImagingHybrid-6.0.dll
vtkImagingHybridJava.dll
vtkImagingSources-6.0.dll
vtkImagingSourcesJava.dll
vtkInteractionImage-6.0.dll
vtkInteractionImageJava.dll
vtkInteractionStyle-6.0.dll
vtkInteractionStyleJava.dll
vtkInteractionWidgets-6.0.dll
vtkInteractionWidgetsJava.dll
vtkIOCore-6.0.dll
vtkIOCoreJava.dll
vtkIOImage-6.0.dll
vtkIOImageJava.dll
vtkIOXMLParser-6.0.dll
vtkIOXMLParserJava.dll
vtkjpeg-6.0.dll
vtkmetaio-6.0.dll
vtkpng-6.0.dll
vtkRenderingAnnotation-6.0.dll
vtkRenderingAnnotationJava.dll
vtkRenderingCore-6.0.dll
vtkRenderingCoreJava.dll
vtkRenderingFreeType-6.0.dll
vtkRenderingFreeTypeJava.dll
vtkRenderingFreeTypeOpenGL-6.0.dll
vtkRenderingFreeTypeOpenGLJava.dll
vtkRenderingOpenGL-6.0.dll
vtkRenderingOpenGLJava.dll
vtkRenderingVolume-6.0.dll
vtkRenderingVolumeJava.dll
vtkRenderingVolumeOpenGL-6.0.dll
vtkRenderingVolumeOpenGLJava.dll
vtksys-6.0.dll
vtktiff-6.0.dll
vtkViewsCore-6.0.dll
vtkViewsCoreJava.dll
vtkWrappingJava-6.0.dll
vtkzlib-6.0.dll

In  "MinSizeRel" build configuration, this means more than 25 megabytes of
DLLs.
Can this result be improved somehow? I mean, can I somehow decrease the
total size/number of required VTK native libraries, considering the set of
VTK classes I am using?

Thank you in advance for any hint/suggestion you may provide.
Best regards,

Marco
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.vtk.org/pipermail/vtkusers/attachments/20130808/d5837bed/attachment.htm>