ParallelCoordinates
vtk-examples/Cxx/Plotting/ParallelCoordinates
Question
If you have a question about this example, please use the VTK Discourse Forum
Code¶
ParallelCoordinates.cxx
#include <vtkChartParallelCoordinates.h>
#include <vtkContextView.h>
#include <vtkFloatArray.h>
#include <vtkNamedColors.h>
#include <vtkNew.h>
#include <vtkPlot.h>
#include <vtkRenderWindow.h>
#include <vtkRenderWindowInteractor.h>
#include <vtkRenderer.h>
#include <vtkTable.h>
int main(int, char*[])
{
vtkNew<vtkNamedColors> colors;
// Set up a 2D scene, add an XY chart to it.
vtkNew<vtkContextView> view;
view->GetRenderer()->SetBackground(colors->GetColor3d("SlateGray").GetData());
view->GetRenderWindow()->SetSize(800, 600);
view->GetRenderWindow()->SetWindowName("ParallelCoordinates");
vtkNew<vtkChartParallelCoordinates> chart;
view->GetScene()->AddItem(chart);
// Create a table with some points in it...
vtkNew<vtkTable> table;
vtkNew<vtkFloatArray> arrX;
arrX->SetName("Field 1");
table->AddColumn(arrX);
vtkNew<vtkFloatArray> arrC;
arrC->SetName("Field 2");
table->AddColumn(arrC);
vtkNew<vtkFloatArray> arrS;
arrS->SetName("Field 3");
table->AddColumn(arrS);
vtkNew<vtkFloatArray> arrS2;
arrS2->SetName("Field 4");
table->AddColumn(arrS2);
// Test charting with a few more points...
table->SetNumberOfRows(10);
for (int i = 0; i < 10; ++i)
{
table->SetValue(i, 0, 0 * i);
table->SetValue(i, 1, 1 * i);
table->SetValue(i, 2, 2 * i);
table->SetValue(i, 3, 3 * i);
}
chart->GetPlot(0)->SetInputData(table);
view->GetRenderWindow()->SetMultiSamples(0);
view->GetRenderWindow()->Render();
view->GetInteractor()->Initialize();
view->GetInteractor()->Start();
return EXIT_SUCCESS;
}
CMakeLists.txt¶
cmake_minimum_required(VERSION 3.12 FATAL_ERROR)
project(ParallelCoordinates)
find_package(VTK COMPONENTS
)
if (NOT VTK_FOUND)
message(FATAL_ERROR "ParallelCoordinates: 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(ParallelCoordinates MACOSX_BUNDLE ParallelCoordinates.cxx )
target_link_libraries(ParallelCoordinates PRIVATE ${VTK_LIBRARIES}
)
# vtk_module_autoinit is needed
vtk_module_autoinit(
TARGETS ParallelCoordinates
MODULES ${VTK_LIBRARIES}
)
Download and Build ParallelCoordinates¶
Click here to download ParallelCoordinates and its CMakeLists.txt file. Once the tarball ParallelCoordinates.tar has been downloaded and extracted,
cd ParallelCoordinates/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:
./ParallelCoordinates
WINDOWS USERS
Be sure to add the VTK bin directory to your path. This will resolve the VTK dll's at run time.