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¶
Danger
The generation of tar files has not been ported to the new VTKExamples. Some tarballs may be missing or out-of-date.
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.