text: /*=========================================================================
  
    Library:   CTK
  
    Copyright (c) Kitware Inc.
  
    Licensed under the Apache License, Version 2.0 (the "License");
    you may not use this file except in compliance with the License.
    You may obtain a copy of the License at
  
        http://www.apache.org/licenses/LICENSE-2.0.txt
  
    Unless required by applicable law or agreed to in writing, software
    distributed under the License is distributed on an "AS IS" BASIS,
    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    See the License for the specific language governing permissions and
    limitations under the License.
  
  =========================================================================*/
  
  // Qt includes
  #include <QApplication>
  #include <QSharedPointer>
  #include <QTimer>
  
  // CTK includes
  #include "ctkVTKScalarsToColorsView.h"
  #include "ctkVTKScalarsToColorsWidget.h"
  
  // VTK includes
  #include <vtkChartXY.h>
  #include <vtkColorTransferFunction.h>
  #include <vtkPiecewiseFunction.h>
  #include <vtkPlot.h>
  #include <vtkSmartPointer.h>
  
  // STD includes
  #include <iostream>
  
  //-----------------------------------------------------------------------------
  int ctkVTKScalarsToColorsWidgetTest3(int argc, char * argv [] )
  {
    QApplication app(argc, argv);
  
    // Transfer Function
    vtkSmartPointer<vtkColorTransferFunction> ctf =
      vtkSmartPointer<vtkColorTransferFunction>::New();
    //
    ctf->AddRGBPoint(0. , 69./255., 199./255.,   186./255.);
    ctf->AddRGBPoint(0.2,  172./255., 3./255., 57./255.);
    ctf->AddRGBPoint(0.4,  169./255., 83./255., 58./255.);
    ctf->AddRGBPoint(0.6,  43./255., 32./255.,  161./255.);
    ctf->AddRGBPoint(0.8,  247./255., 158./255., 97./255.);
    ctf->AddRGBPoint(1.,  183./255., 7./255., 140./255.);
  
    ctkVTKScalarsToColorsWidget widget(0);
    // add transfer function item
    widget.view()->addColorTransferFunction(ctf);
    widget.view()->setAxesToChartBounds();
    widget.show();
  
    if (argc < 2 || QString(argv[1]) != "-I")
      {
      QTimer::singleShot(200, &app, SLOT(quit()));
      }
    return app.exec();
  }
  