ITK/Examples/SimpleOperations/TryCatch: Difference between revisions
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std::cerr << "ExceptionObject caught !" << std::endl; | std::cerr << "ExceptionObject caught !" << std::endl; | ||
std::cerr << err << std::endl; | std::cerr << err << std::endl; | ||
return EXIT_SUCCESS; | return EXIT_SUCCESS; // Since the goal of the example is to catch the exception, we declare this a success. | ||
} | } | ||
return EXIT_FAILURE; | return EXIT_FAILURE; // Since the goal of the example is to catch the exception, the example fails if it is not caught. | ||
} | } | ||
Revision as of 12:16, 4 March 2011
TryCatch.cxx
<source lang="cpp">
- include "itkSize.h"
- include "itkImage.h"
- include "itkImageFileReader.h"
int main(int, char *[]) {
typedef itk::Image< double, 2 > ImageType; typedef itk::ImageFileReader<ImageType> ReaderType;
try
{
ReaderType::Pointer reader = ReaderType::New();
reader->SetFileName("nofile.png");
reader->Update();
}
catch( itk::ExceptionObject & err )
{
std::cerr << "ExceptionObject caught !" << std::endl;
std::cerr << err << std::endl;
return EXIT_SUCCESS; // Since the goal of the example is to catch the exception, we declare this a success.
}
return EXIT_FAILURE; // Since the goal of the example is to catch the exception, the example fails if it is not caught.
}
</source>
CMakeLists.txt
<syntaxhighlight lang="cmake"> cmake_minimum_required(VERSION 3.9.5)
project(TryCatch)
find_package(ITK REQUIRED) include(${ITK_USE_FILE}) if (ITKVtkGlue_LOADED)
find_package(VTK REQUIRED)
include(${VTK_USE_FILE})
endif()
add_executable(TryCatch MACOSX_BUNDLE TryCatch.cxx)
if( "${ITK_VERSION_MAJOR}" LESS 4 )
target_link_libraries(TryCatch ITKReview ${ITK_LIBRARIES})
else( "${ITK_VERSION_MAJOR}" LESS 4 )
target_link_libraries(TryCatch ${ITK_LIBRARIES})
endif( "${ITK_VERSION_MAJOR}" LESS 4 )
</syntaxhighlight>
Download and Build TryCatch
Click here to download TryCatch and its CMakeLists.txt file. Once the tarball TryCatch.tar has been downloaded and extracted,
cd TryCatch/build
- If ITK is installed:
cmake ..
- If ITK is not installed but compiled on your system, you will need to specify the path to your ITK build:
cmake -DITK_DIR:PATH=/home/me/itk_build ..
Build the project:
make
and run it:
./TryCatch
WINDOWS USERS PLEASE NOTE: Be sure to add the ITK bin directory to your path. This will resolve the ITK dll's at run time.
Building All of the Examples
Many of the examples in the ITK Wiki Examples Collection require VTK. You can build all of the the examples by following these instructions. If you are a new VTK user, you may want to try the Superbuild which will build a proper ITK and VTK.
ItkVtkGlue
ITK >= 4
For examples that use QuickView (which depends on VTK), you must have built ITK with Module_ITKVtkGlue=ON.
ITK < 4
Some of the ITK Examples require VTK to display the images. If you download the entire ITK Wiki Examples Collection, the ItkVtkGlue directory will be included and configured. If you wish to just build a few examples, then you will need to download ItkVtkGlue and build it. When you run cmake it will ask you to specify the location of the ItkVtkGlue binary directory.
