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/*=========================================================================
Program: Visualization Toolkit
Module: TestQtLabelSizeCalculator.cxx
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
// .NAME Test of vtkLabelPlacer
// .SECTION Description
// this program tests vtkLabelPlacer which uses a sophisticated algorithm to
// prune labels/icons preventing them from overlapping.
#include "vtkActor.h"
#include "vtkActor2D.h"
#include "vtkCellArray.h"
#include "vtkLabeledDataMapper.h"
#include "vtkLabelHierarchy.h"
#include "vtkLabelPlacer.h"
#include "vtkLabelSizeCalculator.h"
#include "vtkQtLabelSizeCalculator.h"
#include "vtkPointSetToLabelHierarchy.h"
#include "vtkPointData.h"
#include "vtkPoints.h"
#include "vtkPolyData.h"
#include "vtkPolyDataMapper.h"
#include "vtkPolyDataMapper2D.h"
#include "vtkRenderer.h"
#include "vtkRenderWindow.h"
#include "vtkRenderWindowInteractor.h"
#include "vtkStringArray.h"
#include "vtkTextProperty.h"
#include "vtkTexturedActor2D.h"
#include "vtkImageData.h"
#include "vtkQtLabelSurface.h"
#include "vtkQtInitialization.h"
#include "vtkSmartPointer.h"
#define VTK_CREATE(type, name) \
vtkSmartPointer<type> name = vtkSmartPointer<type>::New()
#include <vtkTestUtilities.h>
#include <vtkRegressionTestImage.h>
int TestQtLabelSizeCalculator(int argc, char *argv[])
{
int maxLevels = 5;
int targetLabels = 7;
double labelRatio = 1.0;
int i = 0;
int iteratorType = vtkLabelHierarchy::FULL_SORT;
bool showBounds = true;
VTK_CREATE(vtkQtInitialization, init);
VTK_CREATE( vtkQtLabelSizeCalculator, qtLabelSizeCalculator );
VTK_CREATE( vtkLabelSizeCalculator, labelSizeCalculator );
VTK_CREATE( vtkLabelHierarchy, labelHierarchy );
VTK_CREATE( vtkLabelPlacer, labelPlacer2 );
VTK_CREATE( vtkPointSetToLabelHierarchy, pointSetToLabelHierarchy );
VTK_CREATE( vtkPolyDataMapper, polyDataMapper );
VTK_CREATE( vtkActor, actor );
VTK_CREATE( vtkRenderer, renderer );
VTK_CREATE( vtkRenderWindow, renWin );
renWin->SetMultiSamples(0); // ensure to have the same test image everywhere
VTK_CREATE( vtkRenderWindowInteractor, iren );
VTK_CREATE( vtkQtLabelSurface, qtLabelPlacer );
VTK_CREATE( vtkLabeledDataMapper, labeledMapper );
VTK_CREATE( vtkActor2D, textActor2 );
VTK_CREATE( vtkPoints, points );
for(i = 0; i < 29; i++)
{
points->InsertPoint( i, 0.0, 0.0, 0.0 );
}
points->InsertPoint( 29, 5.0, 5.0, 0.0 );
VTK_CREATE( vtkCellArray, cells );
cells->InsertNextCell(30);
for(i = 0; i < 30; i++)
{
cells->InsertCellPoint(i);
}
VTK_CREATE( vtkPolyData, polyData );
polyData->SetPoints(points);
polyData->SetVerts(cells);
VTK_CREATE( vtkStringArray, stringData );
stringData->SetName("PlaceNames");
stringData->InsertNextValue("\302\242 \302\245 Abu Dhabi");
stringData->InsertNextValue("Amsterdam");
stringData->InsertNextValue("Beijing");
stringData->InsertNextValue("Berlin");
stringData->InsertNextValue("Cairo");
stringData->InsertNextValue("Caracas");
stringData->InsertNextValue("Dublin");
stringData->InsertNextValue("Georgetown");
stringData->InsertNextValue("The Hague");
stringData->InsertNextValue("Hanoi");
stringData->InsertNextValue("Islamabad");
stringData->InsertNextValue("Jakarta");
stringData->InsertNextValue("Kiev");
stringData->InsertNextValue("Kingston");
stringData->InsertNextValue("Lima");
stringData->InsertNextValue("London");
stringData->InsertNextValue("Luxembourg <i>City</i>");
stringData->InsertNextValue("Madrid");
stringData->InsertNextValue("Moscow");
stringData->InsertNextValue("Nairobi");
stringData->InsertNextValue("New Delhi");
stringData->InsertNextValue("Ottawa");
stringData->InsertNextValue("Paris");
stringData->InsertNextValue("Prague");
stringData->InsertNextValue("Rome");
stringData->InsertNextValue("Seoul");
stringData->InsertNextValue("Tehran");
stringData->InsertNextValue("Tokyo");
stringData->InsertNextValue("Warsaw");
stringData->InsertNextValue("Washington");
polyData->GetPointData()->AddArray(stringData);
qtLabelSizeCalculator->SetInputData(polyData);
qtLabelSizeCalculator->DebugOn();
qtLabelSizeCalculator->GetFontProperty()->SetFontSize( 12 );
qtLabelSizeCalculator->GetFontProperty()->SetFontFamily( vtkTextProperty::GetFontFamilyFromString( "Arial" ) );
qtLabelSizeCalculator->GetFontProperty()->SetColor(0., 0., 1.);
qtLabelSizeCalculator->SetInputArrayToProcess( 0, 0, 0, vtkDataObject::FIELD_ASSOCIATION_POINTS, "PlaceNames" );
qtLabelSizeCalculator->SetLabelSizeArrayName( "LabelSize" );
labelSizeCalculator->SetInputData(polyData);
labelSizeCalculator->DebugOn();
labelSizeCalculator->GetFontProperty()->SetFontSize( 12 );
labelSizeCalculator->GetFontProperty()->SetFontFamily( vtkTextProperty::GetFontFamilyFromString( "Arial" ) );
labelSizeCalculator->GetFontProperty()->SetColor(0., 0., 1.);
labelSizeCalculator->SetInputArrayToProcess( 0, 0, 0, vtkDataObject::FIELD_ASSOCIATION_POINTS, "PlaceNames" );
labelSizeCalculator->SetLabelSizeArrayName( "LabelSize" );
labelSizeCalculator->Update();
pointSetToLabelHierarchy->AddInputConnection(qtLabelSizeCalculator->GetOutputPort());
pointSetToLabelHierarchy->SetInputArrayToProcess( 0, 0, 0, vtkDataObject::FIELD_ASSOCIATION_POINTS, "Priority" );
pointSetToLabelHierarchy->SetInputArrayToProcess( 1, 0, 0, vtkDataObject::FIELD_ASSOCIATION_POINTS, "LabelSize" );
pointSetToLabelHierarchy->SetInputArrayToProcess( 2, 0, 0, vtkDataObject::FIELD_ASSOCIATION_POINTS, "PlaceNames" );
pointSetToLabelHierarchy->SetMaximumDepth( maxLevels );
pointSetToLabelHierarchy->SetTargetLabelCount( targetLabels );
labelPlacer2->SetInputConnection( pointSetToLabelHierarchy->GetOutputPort() );
labelPlacer2->SetIteratorType( iteratorType );
labelPlacer2->SetOutputTraversedBounds( showBounds );
labelPlacer2->SetRenderer( renderer );
labelPlacer2->SetMaximumLabelFraction( labelRatio );
labelPlacer2->SetOutputCoordinateSystem( vtkLabelPlacer::DISPLAY );
qtLabelPlacer->SetInputConnection(labelPlacer2->GetOutputPort());
qtLabelPlacer->SetRenderer( renderer );
qtLabelPlacer->SetLabelTextProperty(qtLabelSizeCalculator->GetFontProperty());
qtLabelPlacer->SetFieldDataName("LabelText");
// cairoLabelSizeCalculator->SetRenderWindow( qtLabelPlacer->GetCairoRenderWindow() );
VTK_CREATE( vtkPolyDataMapper2D, polyDataMapper2 );
polyDataMapper2->SetInputConnection( qtLabelPlacer->GetOutputPort(1) );
VTK_CREATE( vtkTexturedActor2D, actor2 );
actor2->SetMapper( polyDataMapper2 );
qtLabelPlacer->Update();
VTK_CREATE( vtkTexture, texture );
texture->SetInputConnection( qtLabelPlacer->GetOutputPort() );
actor2->SetTexture( texture );
renderer->AddActor(actor2);
renWin->SetSize(600, 600);
renWin->AddRenderer(renderer);
renderer->SetBackground(0.5, 0.5, 0.5);
//renderer->SetBackground(1.0, 1.0, 1.0);
iren->SetRenderWindow(renWin);
renWin->Render();
int retVal = vtkRegressionTestImage( renWin );
// if ( retVal == vtkRegressionTester::DO_INTERACTOR)
{
iren->Start();
}
return !retVal;
}
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