VTK/Examples/Cxx/Broken/PolyData/DeletePoints
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DeletePoints.cxx
#include <vtkActor.h>
#include <vtkCellArray.h>
#include <vtkLine.h>
#include <vtkPoints.h>
#include <vtkPolyData.h>
#include <vtkPolyDataMapper.h>
#include <vtkRenderer.h>
#include <vtkRenderWindow.h>
#include <vtkRenderWindowInteractor.h>
#include <vtkSmartPointer.h>
int main(int, char *[])
{
vtkSmartPointer<vtkPoints> points =
vtkSmartPointer<vtkPoints>::New();
points->InsertNextPoint(0,0,0);
points->InsertNextPoint(1,0,0);
points->InsertNextPoint(1,1,0);
points->InsertNextPoint(0,1,0);
vtkSmartPointer<vtkLine> line0 =
vtkSmartPointer<vtkLine>::New();
line0->GetPointIds()->SetId(0, 0);
line0->GetPointIds()->SetId(1, 1);
vtkSmartPointer<vtkLine> line1 =
vtkSmartPointer<vtkLine>::New();
line1->GetPointIds()->SetId(0, 1);
line1->GetPointIds()->SetId(1, 2);
vtkSmartPointer<vtkLine> line2 =
vtkSmartPointer<vtkLine>::New();
line2->GetPointIds()->SetId(0, 2);
line2->GetPointIds()->SetId(1, 3);
vtkSmartPointer<vtkCellArray> lines =
vtkSmartPointer<vtkCellArray>::New();
lines->InsertNextCell(line0);
lines->InsertNextCell(line1);
lines->InsertNextCell(line2);
vtkSmartPointer<vtkPolyData> polydata =
vtkSmartPointer<vtkPolyData>::New();
polydata->SetPoints(points);
polydata->SetLines(lines);
// Tell the polydata to build 'upward' links from points to cells.
polydata->BuildLinks();
// Mark a cell as deleted.
polydata->DeleteCell(1);
// Remove the marked cell.
polydata->RemoveDeletedCells();
// Visualize
vtkSmartPointer<vtkPolyDataMapper> mapper =
vtkSmartPointer<vtkPolyDataMapper>::New();
mapper->SetInputDataObject(polydata);
vtkSmartPointer<vtkActor> actor =
vtkSmartPointer<vtkActor>::New();
actor->SetMapper(mapper);
vtkSmartPointer<vtkRenderer> renderer =
vtkSmartPointer<vtkRenderer>::New();
vtkSmartPointer<vtkRenderWindow> renderWindow =
vtkSmartPointer<vtkRenderWindow>::New();
renderWindow->AddRenderer(renderer);
vtkSmartPointer<vtkRenderWindowInteractor> renderWindowInteractor =
vtkSmartPointer<vtkRenderWindowInteractor>::New();
renderWindowInteractor->SetRenderWindow(renderWindow);
renderer->AddActor(actor);
renderWindow->Render();
renderWindowInteractor->Start();
return EXIT_SUCCESS;
}
Please try the new VTKExamples website.
CMakeLists.txt
cmake_minimum_required(VERSION 2.8)
PROJECT(DeletePoints)
find_package(VTK REQUIRED)
include(${VTK_USE_FILE})
add_executable(DeletePoints MACOSX_BUNDLE DeletePoints.cxx)
if(VTK_LIBRARIES)
target_link_libraries(DeletePoints ${VTK_LIBRARIES})
else()
target_link_libraries(DeletePoints vtkHybrid vtkWidgets)
endif()
Download and Build DeletePoints
Click here to download DeletePoints. and its CMakeLists.txt file.
Once the tarball DeletePoints.tar has been downloaded and extracted,
cd DeletePoints/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:
./DeletePoints
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.