PlotLegacyMethod
VTKExamples/Cxx/WishList/Plotting/PlotLegacyMethod
Code
PlotLegacyMethod.cxx
#include <vtkSphereSource.h>
#include <vtkMath.h>
#include <vtkDoubleArray.h>
#include <vtkFieldData.h>
#include <vtkPolyData.h>
#include <vtkSmartPointer.h>
#include <vtkPolyDataMapper.h>
#include <vtkActor.h>
#include <vtkRenderWindow.h>
#include <vtkRenderer.h>
#include <vtkRenderWindowInteractor.h>
#include <vtkXYPlotActor.h>
int main(int, char *[])
{
vtkSmartPointer<vtkXYPlotActor> plot =
vtkSmartPointer<vtkXYPlotActor>::New();
plot->ExchangeAxesOff();
plot->SetLabelFormat( "%g" );
plot->SetXTitle( "Level" );
plot->SetYTitle( "Frequency" );
plot->SetXValuesToIndex();
for (unsigned int i = 0 ; i < 2 ; i++)
{
vtkSmartPointer<vtkDoubleArray> array_s =
vtkSmartPointer<vtkDoubleArray>::New();
vtkSmartPointer<vtkFieldData> field =
vtkSmartPointer<vtkFieldData>::New();
vtkSmartPointer<vtkDataObject> data =
vtkSmartPointer<vtkDataObject>::New();
for (int b = 0; b < 30; b++) /// Assuming an array of 30 elements
{
double val = vtkMath::Random(0.0,2.0);
array_s->InsertValue(b,val);
}
field->AddArray(array_s);
data->SetFieldData(field);
plot->AddDataObjectInput(data);
}
plot->SetPlotColor(0,1,0,0);
plot->SetPlotColor(1,0,1,0);
vtkSmartPointer<vtkRenderer> renderer =
vtkSmartPointer<vtkRenderer>::New();
renderer->AddActor(plot);
vtkSmartPointer<vtkRenderWindow> renderWindow =
vtkSmartPointer<vtkRenderWindow>::New();
renderWindow->AddRenderer( renderer );
renderWindow->SetSize(500,500);
vtkSmartPointer<vtkRenderWindowInteractor> interactor =
vtkSmartPointer<vtkRenderWindowInteractor>::New();
interactor->SetRenderWindow( renderWindow );
// Initialize the event loop and then start it
interactor->Initialize();
interactor->Start();
return EXIT_SUCCESS;
}
CMakeLists.txt
cmake_minimum_required(VERSION 2.8)
PROJECT(PlotLegacyMethod)
find_package(VTK REQUIRED)
include(${VTK_USE_FILE})
add_executable(PlotLegacyMethod MACOSX_BUNDLE PlotLegacyMethod.cxx)
target_link_libraries(PlotLegacyMethod ${VTK_LIBRARIES})
Download and Build PlotLegacyMethod
Click here to download PlotLegacyMethod and its CMakeLists.txt file. Once the tarball PlotLegacyMethod.tar has been downloaded and extracted,
cd PlotLegacyMethod/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:
./PlotLegacyMethod
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.