[vtkusers] QVTKWidget in Python ?

[Jothybasu Selvaraj]

Here is the working code

import sys
from PyQt4 import QtCore, QtGui
from PyQt4.QtGui import *
from vtk.qt4.QVTKRenderWindowInteractor import QVTKRenderWindowInteractor
import vtk

class MainWindow(QtGui.QMainWindow):
    def __init__(self, parent = None):
        super(MainWindow, self).__init__(parent)
        self.initUI()

    def initUI(self):
       widget = QVTKRenderWindowInteractor()
       widget.Initialize()
       widget.Start()
##       widget.AddObserver("ExitEvent", lambda o, e, a=app: a.quit())

       ren = vtk.vtkRenderer()
       widget.GetRenderWindow().AddRenderer(ren)

       cone = vtk.vtkConeSource()
       cone.SetResolution(24)

       coneMapper = vtk.vtkPolyDataMapper()
       coneMapper.SetInput(cone.GetOutput())

       coneActor = vtk.vtkActor()
       coneActor.SetMapper(coneMapper)
       ren.AddActor(coneActor)
       widget.show()



if __name__ == "__main__":
    app=QApplication(sys.argv)
    form=MainWindow()
    app.exec_()

Jothy

On Mon, Nov 28, 2011 at 3:33 PM, chasank <chasank at gmail.com> wrote:

> What's the wrong with below script? It just shows a blank window, where is
> the interactor window?
> Can anyone help me?
>
> import sys
> from Nifti import Nifti
> from PyQt4 import QtCore, QtGui
> from PyQt4.QtGui import *
> from vtk.qt4.QVTKRenderWindowInteractor import QVTKRenderWindowInteractor
> import vtk
>
> class MainWindow(QtGui.QMainWindow):
>
>  def __init__(self, parent = None):
>    super(MainWindow, self).__init__(parent)
>    self.initUI()
>
>  def initUI(self):
>
>    widget = QVTKRenderWindowInteractor(self)
>    widget.Initialize()
>    widget.Start()
>    widget.AddObserver("ExitEvent", lambda o, e, a=app: a.quit())
>
>    ren = vtk.vtkRenderer()
>    widget.GetRenderWindow().AddRenderer(ren)
>
>    cone = vtk.vtkConeSource()
>    cone.SetResolution(24)
>
>    coneMapper = vtk.vtkPolyDataMapper()
>    coneMapper.SetInput(cone.GetOutput())
>
>    coneActor = vtk.vtkActor()
>    coneActor.SetMapper(coneMapper)
>    ren.AddActor(coneActor)
>    widget.show()
>
>    layout = QVBoxLayout()
>    layout.addWidget(widget)
>
>    central = QWidget()
>    central.setLayout(layout)
>
>    self.setCentralWidget(central)
>    self.setWindowTitle('Example')
>    self.show()
>
>
> --
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-- 
Jothy
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