StackedBar
VTKExamples/Cxx/Plotting/StackedBar
Code¶
StackedBar.cxx
#include "vtkSmartPointer.h" #include "vtkRenderer.h" #include "vtkRenderWindow.h" #include "vtkChartXY.h" #include "vtkChartLegend.h" #include "vtkPlotBar.h" #include "vtkAxis.h" #include "vtkTable.h" #include "vtkIntArray.h" #include "vtkDoubleArray.h" #include "vtkStringArray.h" #include "vtkTextProperty.h" #include "vtkContextView.h" #include "vtkContextScene.h" #include "vtkRenderWindowInteractor.h" #include "vtkColorSeries.h" const int num_months = 12; static const int month[] = {1,2,3,4,5,6,7,8,9,10,11,12}; static const int book_2008[] = {5675, 5902, 6388, 5990, 5575, 7393, 9878, 8082, 6417, 5946, 5526, 5166}; static const int new_popular_2008[] = {701, 687, 736, 696, 750, 814, 923, 860, 786, 735, 680, 741}; static const int periodical_2008[] = {184, 176, 166, 131, 171, 191, 231, 166, 197, 162, 152, 143}; static const int audiobook_2008[] = {903, 1038, 987, 1073, 1144, 1203, 1173, 1196, 1213, 1076, 926, 874}; static const int video_2008[] = {1524, 1565, 1627, 1445, 1179, 1816, 2293, 1811, 1588, 1561, 1542, 1563}; static const int book_2009[] = {6388, 5990, 5575, 9878, 8082, 5675, 7393, 5902, 5526, 5166, 5946, 6417}; static const int new_popular_2009[] = {696, 735, 786, 814, 736, 860, 750, 687, 923, 680, 741, 701}; static const int periodical_2009[] = {197, 166, 176, 231, 171, 152, 166, 131, 184, 191, 143, 162}; static const int audiobook_2009[] = {1213, 1076, 926, 987, 903, 1196, 1073, 1144, 1203, 1038, 874, 1173}; static const int video_2009[] = {2293, 1561, 1542, 1627, 1588, 1179, 1563, 1445, 1811, 1565, 1524, 1816}; static void build_array(const char *name, vtkIntArray *array, const int c_array[]) { array->SetName(name); for (int i = 0; i < num_months; ++i) { array->InsertNextValue(c_array[i]); } } //---------------------------------------------------------------------------- int main(int , char * []) { // Set up a 2D scene, add an XY chart to it vtkSmartPointer<vtkContextView> view = vtkSmartPointer<vtkContextView>::New(); view->GetRenderWindow()->SetSize(500, 350); vtkSmartPointer<vtkChartXY> chart = vtkSmartPointer<vtkChartXY>::New(); view->GetScene()->AddItem(chart); // Create a table with some points in it... vtkSmartPointer<vtkTable> table = vtkSmartPointer<vtkTable>::New(); vtkSmartPointer<vtkIntArray> arrMonth = vtkSmartPointer<vtkIntArray>::New(); build_array("Month", arrMonth, month); table->AddColumn(arrMonth); vtkSmartPointer<vtkIntArray> arrBooks2008 = vtkSmartPointer<vtkIntArray>::New(); build_array("Books 2008", arrBooks2008, book_2008); table->AddColumn(arrBooks2008); vtkSmartPointer<vtkIntArray>arrNewPopular2008 = vtkSmartPointer<vtkIntArray>::New(); build_array("New / Popular 2008", arrNewPopular2008, new_popular_2008); table->AddColumn(arrNewPopular2008); vtkSmartPointer<vtkIntArray>arrPeriodical2008 = vtkSmartPointer<vtkIntArray>::New(); build_array("Periodical 2008", arrPeriodical2008, periodical_2008); table->AddColumn(arrPeriodical2008); vtkSmartPointer<vtkIntArray>arrAudiobook2008 = vtkSmartPointer<vtkIntArray>::New(); build_array("Audiobook 2008", arrAudiobook2008, audiobook_2008); table->AddColumn(arrAudiobook2008); vtkSmartPointer<vtkIntArray> arrVideo2008 = vtkSmartPointer<vtkIntArray>::New(); build_array("Video 2008", arrVideo2008, video_2008); table->AddColumn(arrVideo2008); vtkSmartPointer<vtkIntArray>arrBooks2009 = vtkSmartPointer<vtkIntArray>::New(); build_array("Books 2009", arrBooks2009, book_2009); table->AddColumn(arrBooks2009); vtkSmartPointer<vtkIntArray> arrNewPopular2009 = vtkSmartPointer<vtkIntArray>::New(); build_array("New / Popular 2009", arrNewPopular2009, new_popular_2009); table->AddColumn(arrNewPopular2009); vtkSmartPointer<vtkIntArray> arrPeriodical2009 = vtkSmartPointer<vtkIntArray>::New(); build_array("Periodical 2009", arrPeriodical2009, periodical_2009); table->AddColumn(arrPeriodical2009); vtkSmartPointer<vtkIntArray>arrAudiobook2009 = vtkSmartPointer<vtkIntArray>::New(); build_array("Audiobook 2009", arrAudiobook2009, audiobook_2009); table->AddColumn(arrAudiobook2009); vtkSmartPointer<vtkIntArray> arrVideo2009 = vtkSmartPointer<vtkIntArray>::New(); build_array("Video 2009", arrVideo2009, video_2009); table->AddColumn(arrVideo2009); // Create a color series to use with our stacks. vtkSmartPointer<vtkColorSeries> colorSeries1 = vtkSmartPointer<vtkColorSeries>::New(); colorSeries1->SetColorScheme(vtkColorSeries::WILD_FLOWER); // Add multiple line plots, setting the colors etc vtkPlotBar *bar = 0; bar = vtkPlotBar::SafeDownCast(chart->AddPlot(vtkChart::BAR)); bar->SetColorSeries(colorSeries1); bar->SetInputData(table, "Month", "Books 2008"); bar->SetInputArray(2,"New / Popular 2008"); bar->SetInputArray(3,"Periodical 2008"); bar->SetInputArray(4,"Audiobook 2008"); bar->SetInputArray(5,"Video 2008"); vtkSmartPointer<vtkColorSeries> colorSeries2 = vtkSmartPointer<vtkColorSeries>::New(); colorSeries2->SetColorScheme(vtkColorSeries::WILD_FLOWER); bar = vtkPlotBar::SafeDownCast(chart->AddPlot(vtkChart::BAR)); bar->SetColorSeries(colorSeries2); bar->SetInputData(table, "Month", "Books 2009"); bar->SetInputArray(2,"New / Popular 2009"); bar->SetInputArray(3,"Periodical 2009"); bar->SetInputArray(4,"Audiobook 2009"); bar->SetInputArray(5,"Video 2009"); chart->SetShowLegend(true); vtkAxis *axis = chart->GetAxis(vtkAxis::BOTTOM); axis->SetBehavior(1); axis->SetMaximum(13.0); axis->SetTitle("Month"); chart->GetAxis(vtkAxis::LEFT)->SetTitle(""); chart->SetTitle("Circulation 2008, 2009"); // Set up the legend to be off to the top right of the viewport. chart->GetLegend()->SetInline(false); chart->GetLegend()->SetHorizontalAlignment(vtkChartLegend::RIGHT); chart->GetLegend()->SetVerticalAlignment(vtkChartLegend::TOP); // Set up some custom labels for months. vtkSmartPointer<vtkDoubleArray> dates = vtkSmartPointer<vtkDoubleArray>::New(); vtkSmartPointer<vtkStringArray> strings = vtkSmartPointer<vtkStringArray>::New(); dates->InsertNextValue(1); strings->InsertNextValue("January"); dates->InsertNextValue(2); strings->InsertNextValue("February"); dates->InsertNextValue(3); strings->InsertNextValue("March"); dates->InsertNextValue(4); strings->InsertNextValue("April"); dates->InsertNextValue(5); strings->InsertNextValue("May"); dates->InsertNextValue(6); strings->InsertNextValue("June"); dates->InsertNextValue(7); strings->InsertNextValue("July"); dates->InsertNextValue(8); strings->InsertNextValue("August"); dates->InsertNextValue(9); strings->InsertNextValue("September"); dates->InsertNextValue(10); strings->InsertNextValue("October"); dates->InsertNextValue(11); strings->InsertNextValue("November"); dates->InsertNextValue(12); strings->InsertNextValue("December"); axis->SetCustomTickPositions(dates, strings); axis->GetLabelProperties()->SetOrientation(90); axis->GetLabelProperties()->SetVerticalJustification(VTK_TEXT_CENTERED); axis->GetLabelProperties()->SetJustification(VTK_TEXT_RIGHT); //Finally render the scene and compare the image to a reference image view->GetRenderWindow()->SetMultiSamples(0); view->GetInteractor()->Initialize(); view->GetInteractor()->Start(); return EXIT_SUCCESS; }
CMakeLists.txt¶
cmake_minimum_required(VERSION 2.8) PROJECT(StackedBar) find_package(VTK REQUIRED) include(${VTK_USE_FILE}) add_executable(StackedBar MACOSX_BUNDLE StackedBar.cxx) target_link_libraries(StackedBar ${VTK_LIBRARIES})
Download and Build StackedBar¶
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 StackedBar and its CMakeLists.txt file. Once the tarball StackedBar.tar has been downloaded and extracted,
cd StackedBar/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:
./StackedBar
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.