/usr/share/vtk/Widgets/Cxx/SplineWidget.cxx is in vtk-examples 5.8.0-17.5.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 | #include "vtkActor.h"
#include "vtkCamera.h"
#include "vtkCommand.h"
#include "vtkImageData.h"
#include "vtkImagePlaneWidget.h"
#include "vtkInteractorEventRecorder.h"
#include "vtkKochanekSpline.h"
#include "vtkParametricSpline.h"
#include "vtkPlaneSource.h"
#include "vtkPointData.h"
#include "vtkPolyData.h"
#include "vtkPolyDataMapper.h"
#include "vtkProperty.h"
#include "vtkProperty2D.h"
#include "vtkRenderWindow.h"
#include "vtkRenderWindowInteractor.h"
#include "vtkRenderer.h"
#include "vtkSplineWidget.h"
#include "vtkTextProperty.h"
// Callback for the spline widget interaction
class vtkSplineWidgetCallback : public vtkCommand
{
public:
static vtkSplineWidgetCallback *New()
{ return new vtkSplineWidgetCallback; }
virtual void Execute(vtkObject *caller, unsigned long, void*)
{
vtkSplineWidget *spline = reinterpret_cast<vtkSplineWidget*>(caller);
spline->GetPolyData(Poly);
}
vtkSplineWidgetCallback():Poly(0){};
vtkPolyData* Poly;
};
int main( int, char *[] )
{
vtkRenderer* ren1 = vtkRenderer::New();
vtkRenderWindow* renWin = vtkRenderWindow::New();
renWin->AddRenderer( ren1);
vtkRenderWindowInteractor* iren = vtkRenderWindowInteractor::New();
iren->SetRenderWindow( renWin);
planeSource->Update();
vtkPlaneSource* planeSource;
planeSource->Update();
vtkPolyDataMapper* planeSourceMapper = vtkPolyDataMapper::New();
planeSourceMapper->SetInput(planeSource->GetOutput());
vtkActor* planeSourceActor = vtkActor::New();
planeSourceActor->SetMapper(planeSourceMapper);
vtkSplineWidget* spline = vtkSplineWidget::New();
spline->SetInteractor( iren);
spline->SetInput(planeSource->GetOutput());
spline->SetPriority(1.0);
spline->KeyPressActivationOff();
spline->PlaceWidget();
spline->ProjectToPlaneOn();
spline->SetProjectionNormal(0);
spline->SetProjectionPosition(102.4); //initial plane oriented position
spline->SetProjectionNormal(3); //allow arbitrary oblique orientations
spline->SetPlaneSource(planeSource);
// Specify the type of spline (change from default vtkCardinalSpline)
vtkKochanekSpline* xspline = vtkKochanekSpline::New();
vtkKochanekSpline* yspline = vtkKochanekSpline::New();
vtkKochanekSpline* zspline = vtkKochanekSpline::New();
vtkParametricSpline* para = spline->GetParametricSpline();
para->SetXSpline(xspline);
para->SetYSpline(yspline);
para->SetZSpline(zspline);
vtkPolyData* poly = vtkPolyData::New();
spline->GetPolyData(poly);
vtkSplineWidgetCallback* swcb = vtkSplineWidgetCallback::New();
swcb->Poly = poly;
spline->AddObserver(vtkCommand::InteractionEvent,swcb);
ren1->SetBackground( 0.1, 0.2, 0.4);
ren1->AddActor(planeSourceActor);
renWin->SetSize( 600, 300);
renWin->Render();
spline->On();
spline->SetNumberOfHandles(4);
spline->SetNumberOfHandles(5);
spline->SetResolution(399);
// Set up an interesting viewpoint
vtkCamera* camera = ren1->GetActiveCamera();
// Render the image
iren->Initialize();
renWin->Render();
return EXIT_SUCCESS;
}
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