3DArray
vtk-examples/Cxx/Utilities/3DArray
Question
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Code¶
3DArray.cxx
#include <vtkDenseArray.h>
#include <vtkNew.h>
int main(int, char*[])
{
// Create an N-D array
vtkNew<vtkDenseArray<double>> array;
// Resize the array to 4x5x3
array->Resize(4, 5, 3);
// Set a value
int i = 0;
int j = 0;
int k = 0;
double value = 3.0;
array->SetValue(i, j, k, value);
// Get a value
std::cout << array->GetValue(i, j, k) << std::endl;
// Get size (bounds) of whole array
cout << array->GetExtents() << endl;
// Get size (bounds) of array dimensions
std::cout << array->GetExtents()[0] << std::endl;
std::cout << array->GetExtents()[1] << std::endl;
std::cout << array->GetExtents()[2] << std::endl;
// Get the bounds of the 0th dimension
std::cout << array->GetExtents()[0].GetBegin() << std::endl;
std::cout << array->GetExtents()[0].GetEnd() << std::endl;
return EXIT_SUCCESS;
}
CMakeLists.txt¶
cmake_minimum_required(VERSION 3.12 FATAL_ERROR)
project(3DArray)
find_package(VTK COMPONENTS
)
if (NOT VTK_FOUND)
message(FATAL_ERROR "3DArray: Unable to find the VTK build folder.")
endif()
# Prevent a "command line is too long" failure in Windows.
set(CMAKE_NINJA_FORCE_RESPONSE_FILE "ON" CACHE BOOL "Force Ninja to use response files.")
add_executable(3DArray MACOSX_BUNDLE 3DArray.cxx )
target_link_libraries(3DArray PRIVATE ${VTK_LIBRARIES}
)
# vtk_module_autoinit is needed
vtk_module_autoinit(
TARGETS 3DArray
MODULES ${VTK_LIBRARIES}
)
Download and Build 3DArray¶
Click here to download 3DArray and its CMakeLists.txt file. Once the tarball 3DArray.tar has been downloaded and extracted,
cd 3DArray/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:
./3DArray
WINDOWS USERS
Be sure to add the VTK bin directory to your path. This will resolve the VTK dll's at run time.