ColorLookupTable
VTKExamples/Cxx/Utilities/ColorLookupTable
Description
This example shows how to create a table of colors that map from a continuous range of values.
Code
ColorLookupTable.cxx
#include <vtkSmartPointer.h>
#include <vtkLookupTable.h>
int main(int, char *[])
{
vtkSmartPointer<vtkLookupTable> lookupTable =
vtkSmartPointer<vtkLookupTable>::New();
lookupTable->SetTableRange(0.0, 10.0);
// If you don't want to use the whole color range, you can use
// SetValueRange, SetHueRange, and SetSaturationRange
lookupTable->Build();
double color[3];
lookupTable->GetColor(1.0, color);
std::cout << color[0] << " " << color[1] << " " << color[2] << std::endl;
lookupTable->GetColor(5.0, color);
std::cout << color[0] << " " << color[1] << " " << color[2] << std::endl;
return EXIT_SUCCESS;
}
CMakeLists.txt
cmake_minimum_required(VERSION 2.8)
PROJECT(ColorLookupTable)
find_package(VTK REQUIRED)
include(${VTK_USE_FILE})
add_executable(ColorLookupTable MACOSX_BUNDLE ColorLookupTable.cxx)
target_link_libraries(ColorLookupTable ${VTK_LIBRARIES})
Download and Build ColorLookupTable
Click here to download ColorLookupTable and its CMakeLists.txt file. Once the tarball ColorLookupTable.tar has been downloaded and extracted,
cd ColorLookupTable/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:
./ColorLookupTable
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.