RandomSequence
VTKExamples/Cxx/SimpleOperations/RandomSequence
Description
This is the "new" (December, 2009) VTK way to produce random numbers. It is actually a random sequence generator.
Code
RandomSequence.cxx
#include <vtkMinimalStandardRandomSequence.h>
#include <vtkSmartPointer.h>
int main(int, char *[])
{
//Create a random sequence generator.
vtkSmartPointer<vtkMinimalStandardRandomSequence> sequence =
vtkSmartPointer<vtkMinimalStandardRandomSequence>::New();
// initialize the sequence
sequence->SetSeed(1);
//Get 3 random numbers.
double x = sequence->GetValue();
sequence->Next();
double y = sequence->GetValue();
sequence->Next();
double z = sequence->GetValue();
// You can also use seq->GetRangeValue(-1.0,1.0);
//to set a range on the random values.
//Output the resulting random numbersl
std::cout << "x: " << x << " y: " << y << " z: " << z << std::endl;
return EXIT_SUCCESS;
}
CMakeLists.txt
cmake_minimum_required(VERSION 2.8)
PROJECT(RandomSequence)
find_package(VTK REQUIRED)
include(${VTK_USE_FILE})
add_executable(RandomSequence MACOSX_BUNDLE RandomSequence.cxx)
target_link_libraries(RandomSequence ${VTK_LIBRARIES})
Download and Build RandomSequence
Click here to download RandomSequence and its CMakeLists.txt file. Once the tarball RandomSequence.tar has been downloaded and extracted,
cd RandomSequence/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:
./RandomSequence
WINDOWS USERS PLEASE NOTE: Be sure to add the VTK bin directory to your path. This will resolve the VTK dll's at run time.