SparseArray
vtk-examples/Cxx/Utilities/SparseArray
Question
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Code¶
SparseArray.cxx
#include <vtkNew.h>
#include <vtkSparseArray.h>
int main(int, char*[])
{
vtkNew<vtkSparseArray<double>> array;
array->Resize(5, 1);
array->SetNullValue(-1);
for (unsigned int i = 0; i < 5; i++)
{
array->SetValue(i, 0, i);
}
for (unsigned int i = 0; i < 6; i++)
{
double val = array->GetValue(i, 0);
std::cout << val << std::endl;
}
return EXIT_SUCCESS;
}
CMakeLists.txt¶
cmake_minimum_required(VERSION 3.3 FATAL_ERROR)
project(SparseArray)
find_package(VTK COMPONENTS
vtkCommonCore
QUIET
)
if (NOT VTK_FOUND)
message("Skipping SparseArray: ${VTK_NOT_FOUND_MESSAGE}")
return ()
endif()
message (STATUS "VTK_VERSION: ${VTK_VERSION}")
if (VTK_VERSION VERSION_LESS "8.90.0")
# old system
include(${VTK_USE_FILE})
add_executable(SparseArray MACOSX_BUNDLE SparseArray.cxx )
target_link_libraries(SparseArray PRIVATE ${VTK_LIBRARIES})
else ()
# include all components
add_executable(SparseArray MACOSX_BUNDLE SparseArray.cxx )
target_link_libraries(SparseArray PRIVATE ${VTK_LIBRARIES})
# vtk_module_autoinit is needed
vtk_module_autoinit(
TARGETS SparseArray
MODULES ${VTK_LIBRARIES}
)
endif ()
Download and Build SparseArray¶
Click here to download SparseArray and its CMakeLists.txt file. Once the tarball SparseArray.tar has been downloaded and extracted,
cd SparseArray/build
If VTK is installed:
cmake ..
If VTK is not installed but compiled on your system, you will need to specify the path to your VTK build:
cmake -DVTK_DIR:PATH=/home/me/vtk_build ..
Build the project:
make
and run it:
./SparseArray
WINDOWS USERS
Be sure to add the VTK bin directory to your path. This will resolve the VTK dll's at run time.