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#############################################################
## ##
## Copyright (c) 2003-2017 by The University of Queensland ##
## Centre for Geoscience Computing ##
## http://earth.uq.edu.au/centre-geoscience-computing ##
## ##
## Primary Business: Brisbane, Queensland, Australia ##
## Licensed under the Open Software License version 3.0 ##
## http://www.apache.org/licenses/LICENSE-2.0 ##
## ##
#############################################################
"""
"""
import string
import os
import os.path
from esys.lsm.vis import core
from .camera import Camera
import vtk as kwvtk
formatWriterDict = dict()
formatWriterDict[str(core.PNG)] = kwvtk.vtkPNGWriter
formatWriterDict[str(core.PNM)] = kwvtk.vtkPNMWriter
class Renderer:
def __init__(self):
self.vtkRenderWindow = None
self.vtkRenderer = None
self.vtkInteractor = None
self.camera = None
self.interactive = True
def getVtkRenderWindow(self):
if (self.vtkRenderWindow == None):
self.vtkRenderWindow = self.createVtkRenderWindow()
self.vtkRenderWindow.AddRenderer(self.getVtkRenderer())
return self.vtkRenderWindow
def createVtkRenderWindow(self):
return kwvtk.vtkRenderWindow()
def createVtkRenderer(self):
return kwvtk.vtkRenderer()
def getVtkRenderer(self):
if (self.vtkRenderer == None):
self.vtkRenderer = self.createVtkRenderer()
return self.vtkRenderer
def setOffScreen(self, doOffScreen):
self.getVtkRenderWindow().SetOffScreenRendering(int(doOffScreen))
def getOffScreen(self):
return \
bool(
self.getVtkRenderWindow().GetOffScreenRendering()
)
def getInteractive(self):
return self.interactive
def setInteractive(self, interactive):
self.interactive = bool(interactive)
def getCamera(self):
if (self.camera == None):
self.camera = Camera(self.getVtkRenderer().GetActiveCamera())
return self.camera
def getVtkInteractor(self):
if (self.vtkInteractor == None):
self.vtkInteractor = kwvtk.vtkRenderWindowInteractor()
self.vtkInteractor.SetInteractorStyle(
kwvtk.vtkInteractorStyleTrackballCamera()
)
return self.vtkInteractor
def updateInteractor(self):
if ((not self.getOffScreen()) and self.getInteractive()):
if (not self.getVtkInteractor().GetRenderWindow()):
self.getVtkInteractor().SetRenderWindow(self.getVtkRenderWindow())
if (not self.getVtkInteractor().GetInitialized()):
self.getVtkInteractor().Initialize()
if (not self.getVtkInteractor().GetEnabled()):
self.getVtkInteractor().Enable()
elif (self.getVtkInteractor().GetEnabled()):
self.getVtkInteractor().Disable()
def getOffScreen(self):
return self.getVtkRenderWindow().GetOffScreenRendering()
def setSize(self, size):
if (size != None):
self.getVtkRenderWindow().SetSize(size)
def getSize(self):
return self.getVtkRenderWindow().GetSize()
def getImageWriter(self, imageFormat):
return formatWriterDict[str.upper(str(imageFormat))]()
def getImageFormat(self, fileName):
return core.getFormatFromExtension(fileName)
def clear(self):
self.getVtkRenderer().RemoveAllProps()
self.getVtkRenderer().GetProps().RemoveAllItems()
def add(self, iteratable):
vtkRenderer = self.getVtkRenderer()
for thing in iteratable:
thing.addActor(vtkRenderer)
def setBackground(self, color):
self.getVtkRenderer().SetBackground(color.getRgb())
def startInteractor(self):
if (self.getVtkInteractor().GetEnabled()):
self.getVtkInteractor().Start()
def render(self, fileName = None, imageFormat = None):
self.getVtkRenderWindow().Render()
if (fileName != None):
if (imageFormat == None):
imageFormat = self.getImageFormat(fileName)
imageInput = kwvtk.vtkRenderLargeImage()
imageInput.SetMagnification(1)
imageInput.SetInput(self.getVtkRenderer())
writer = self.getImageWriter(imageFormat)
writer.SetInput(imageInput.GetOutput())
writer.SetFileName(fileName)
writer.Write()
class RenderDefaults(core.RenderDefaults):
pass
class Scene(core.Scene):
def __init__(self, renderDefaults=None):
self.renderer = None
core.Scene.__init__(self, renderDefaults)
self.initialise()
def getRenderer(self):
if (self.renderer == None):
self.renderer = Renderer()
return self.renderer
def setBackground(self, color):
self.getRenderer().setBackground(color)
def clear(self):
core.Scene.clear(self)
self.getRenderer().clear()
def getCamera(self):
return self.getRenderer().getCamera()
def render(
self,
offScreen = None,
interactive = None,
fileName = None,
imageFormat = None,
size = None
):
(offScreen, size, interactive) = \
self.getRenderDefaults(offScreen, size, interactive)
self.getRenderer().clear()
self.getRenderer().add(self.objectList)
self.getRenderer().setOffScreen(offScreen)
self.getRenderer().setInteractive(interactive)
self.getRenderer().setSize(size)
self.getRenderer().updateInteractor()
self.getRenderer().render(fileName, imageFormat)
self.getRenderer().startInteractor()
|
