[Insight-users] itk2DEdgeDetectionSample

[Mathieu Malaterre]

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Hi all,
  I tried to used itk2DEdgeDetectionSample. So I changed the
CMakeFile.txt. But then when I tried to recomplie, I get an error:
> cmake .
> make
...
/shalom/data/mmalat/CMake/bin/cmake
-S/shalom/data/mmalat/InsightSource/Examples/EdgeDetection
-O/shalom/data/mmalat/InsightSource/Examples/EdgeDetection
-H/shalom/data/mmalat/InsightSource -B/shalom/data/mmalat/InsightSource
/usr/bin/c++ -rdynamic -g -O2 -ftemplate-depth-50
-L/shalom/data/mmalat/InsightSource/Utilities/zlib
-L/shalom/data/mmalat/InsightSource/Utilities/png
-L/shalom/data/mmalat/InsightSource/Code/Common
-L/shalom/data/mmalat/InsightSource/Code/IO
-L/shalom/data/mmalat/InsightSource/Code/Numerics/vxl
-L/shalom/data/mmalat/VTK_cvs/Lib
-L/shalom/data/mmalat/InsightSource/Code/BasicFilters
-L/shalom/data/mmalat/InsightSource/Code/Algorithms
-L/shalom/data/mmalat/Insight/Lib/ -L/shalom/data/mmalat/Insight/Bin/
-lpthread -ldl -lpthread -ldl -lm -lGL -lXt  -lSM -lICE
-L/usr/X11R6/lib -lX11 -lXext -lpthread -ldl -lm -lVXLNumerics
-lITKCommon -lITKBasicFilters -lm -lITKBasicFilters -lITKCommon
-lVXLNumerics -lITKIO -lpthread -ldl -lpthread -ldl
-lm -lGL -lXt  -lSM -lICE  -L/usr/X11R6/lib -lX11 -lXext -lpthread -ldl
-lm -lVXLNumerics -lITKCommon -lITKBasicFilters -lm
-lITKBasicFilters -lITKCommon -lVXLNumerics -lITKIO
-Wl,-rpath,/shalom/data/mmalat/InsightSource/Utilities/zlib:/shalom/data/mmalat/InsightSource/Utilities/png:/shalom/data/mmalat/InsightSource/Code/Common:/shalom/data/mmalat/InsightSource/Code/IO:/shalom/data/mmalat/InsightSource/Code/Numerics/vxl:/shalom/data/mmalat/VTK_cvs/Lib:/shalom/data/mmalat/InsightSource/Code/BasicFilters:/shalom/data/mmalat/InsightSource/Code/Algorithms:/shalom/data/mmalat/Insight/Lib/:/shalom/data/mmalat/Insight/Bin/
-o /shalom/data/mmalat/Insight/Bin/itk2DEdgeDetectionSample
/usr/lib/gcc-lib/i386-redhat-linux/2.96/../../../crt1.o: In function
`_start':
/usr/lib/gcc-lib/i386-redhat-linux/2.96/../../../crt1.o(.text+0x18):
undefined reference to `main'
collect2: ld returned 1 exit status
make[5]: *** [/shalom/data/mmalat/Insight/Bin/itk2DEdgeDetectionSample]
Error 1
make[4]: *** [default_target] Error 2
make[3]: *** [default_target_EdgeDetection] Error 2
make[2]: *** [default_target] Error 2
make[1]: *** [default_target_Examples] Error 2
make: *** [default_target] Error 2

So the Makefile seems not to be correctly generated. I tried again by
changing itk2DEdgeDetectionSample.txx to itk2DEdgeDetectionSample.cxx,
and magically it works (well it compiles fine).
If anybody could explains to me what is the trick ?

By the way I can only use SOBEL filter Canny and ZeroCrossing seems not
to work. But I'll have a look.
thanks
Mathieu


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