def make_glyph(ren, pos, message):
"""vtkTextActor3D does almost exactly what I need, even
multi-lines, although the documentation claims otherwise.
Only thing I need now is to be able to query the bounds of the
generated texture image.
From experiments with the sphere at the origin, it does seem that
setting the font size to x-points, makes the text line, from the
bottom-most feature to the top-most, x-world units high. I don't
know how to get to the inter-line spacing yet though...
"""
ta = vtk.vtkTextActor3D()
ta.SetInput(message)
tprop = ta.GetTextProperty()
tprop.SetFontFamilyToArial()
#tprop.SetVerticalJustificationToCentered()
tprop.SetFontSize(32)
tprop.SetBold(0)
tprop.SetItalic(0)
tprop.SetShadow(0)
tprop.SetColor((0,0,0))
ta.SetPosition((pos[0], pos[1],0))
#ta.SetPosition((pos[0], pos[1]))
#ta.UpdateImageActor()
# I have *NO* idea why I have to this, but if I don't, I get the
# following error message with "What ghte hell" (it's the 'g'):
#
# RuntimeError: ERROR: In ..\..\..\archive\VTK\
# Filtering\vtkStreamingDemandDrivenPipeline.cxx, line 698
# vtkStreamingDemandDrivenPipeline (0182B9B0): The update extent
# specified in the information for output port 0 on algorithm
# vtkTrivialProducer(01829DA8) is 0 255 0 63 0 0, which is
# outside the whole extent 0 255 0 31 0 0.
# investigation shows that the DisplayExtent of the imageactor is
# indeed larger than the wholeextent of the imagedata, although
# these two are set to be equal in the UpdateImageActor.
#ta.GetImageActor().SetDisplayExtent(ta.GetImageData().GetWholeExtent())
ren.AddActor(ta)
ss = vtk.vtkSphereSource()
ss.SetRadius(32)
sm = vtk.vtkPolyDataMapper()
sm.SetInput(ss.GetOutput())
sa = vtk.vtkActor()
sa.SetMapper(sm)
sa.SetPosition((pos[0],pos[1],0))
ren.AddActor(sa)
return ta
def AddOneTextActor(baseTextProp):
name = "ia"
self.textActors[name] = vtk.vtkTextActor3D()
# This adjustment is needed to reduce the difference
# between the Tcl and Python versions.
self.textActors[name].SetOrigin(0, -0.127878, 0)
tprop = self.textActors[name].GetTextProperty()
tprop.ShallowCopy(baseTextProp)
tprop.SetColor(1, 0, 0)
def make_glyph(ren, pos, message):
"""vtkTextActor3D does almost exactly what I need, even
multi-lines, although the documentation claims otherwise.
Only thing I need now is to be able to query the bounds of the
generated texture image.
From experiments with the sphere at the origin, it does seem that
setting the font size to x-points, makes the text line, from the
bottom-most feature to the top-most, x-world units high. I don't
know how to get to the inter-line spacing yet though...
"""
ta = vtk.vtkTextActor3D()
ta.SetInput(message)
tprop = ta.GetTextProperty()
tprop.SetFontFamilyToArial()
#tprop.SetVerticalJustificationToCentered()
tprop.SetFontSize(32)
tprop.SetBold(0)
tprop.SetItalic(0)
tprop.SetShadow(0)
tprop.SetColor((0, 0, 0))
ta.SetPosition((pos[0], pos[1], 0))
#ta.SetPosition((pos[0], pos[1]))
#ta.UpdateImageActor()
# I have *NO* idea why I have to this, but if I don't, I get the
# following error message with "What ghte hell" (it's the 'g'):
#
# RuntimeError: ERROR: In ..\..\..\archive\VTK\
# Filtering\vtkStreamingDemandDrivenPipeline.cxx, line 698
# vtkStreamingDemandDrivenPipeline (0182B9B0): The update extent
# specified in the information for output port 0 on algorithm
# vtkTrivialProducer(01829DA8) is 0 255 0 63 0 0, which is
# outside the whole extent 0 255 0 31 0 0.
# investigation shows that the DisplayExtent of the imageactor is
# indeed larger than the wholeextent of the imagedata, although
# these two are set to be equal in the UpdateImageActor.
#ta.GetImageActor().SetDisplayExtent(ta.GetImageData().GetWholeExtent())
ren.AddActor(ta)
ss = vtk.vtkSphereSource()
ss.SetRadius(32)
sm = vtk.vtkPolyDataMapper()
sm.SetInput(ss.GetOutput())
sa = vtk.vtkActor()
sa.SetMapper(sm)
sa.SetPosition((pos[0], pos[1], 0))
ren.AddActor(sa)
return ta
def AddOneTextActor(baseTextProp):
name = "ia"
self.textActors[name] = vtk.vtkTextActor3D()
# This adjustment is needed to reduce the difference
# between the Tcl and Python versions.
self.textActors[name].SetOrigin(0, -0.127878, 0)
tprop = self.textActors[name].GetTextProperty()
tprop.ShallowCopy(baseTextProp)
tprop.SetColor(1,0,0)
def make_glyph(ren, pos, message):
ta = vtk.vtkTextActor3D()
ta.SetInput(message)
tprop = ta.GetTextProperty()
tprop.SetFontFamilyToArial()
tprop.SetFontSize(32)
tprop.SetBold(0)
tprop.SetItalic(0)
tprop.SetShadow(0)
tprop.SetColor((0, 0, 0))
ta.SetPosition((pos[0], pos[1], 0))
ren.AddActor(ta)
def make_glyph(ren, pos, message):
ta = vtk.vtkTextActor3D()
ta.SetInput(message)
tprop = ta.GetTextProperty()
tprop.SetFontFamilyToArial()
tprop.SetFontSize(32)
tprop.SetBold(0)
tprop.SetItalic(0)
tprop.SetShadow(0)
tprop.SetColor((0, 0, 0))
ta.SetPosition((pos[0], pos[1], 0))
ren.AddActor(ta)
def __init__(self):
super(MyGraphicsView, self).__init__()
self.mWidget = vtk.QVTKWidget2()
self.setViewport(self.mWidget)
self.setViewportUpdateMode(QtGui.QGraphicsView.FullViewportUpdate)
self.mScene = MyOpenGLScene(self.mWidget.context())
self.setScene(self.mScene)
self.mRen = vtk.vtkRenderer()
self.mRen.SetBackground(0, 0, 0)
self.mRen.SetBackground2(1, 1, 1)
self.mRen.SetGradientBackground(1)
textActor = vtk.vtkTextActor3D()
textActor.SetInput("Qt & VTK!!")
self.mRen.AddViewProp(textActor)
self.mRen.ResetCamera()
self.mWidget.GetRenderWindow().AddRenderer(self.mRen)
self.mWidget.GetRenderWindow().SetSwapBuffers(0)
def __init__(self):
super(MyGraphicsView, self).__init__()
self.mWidget = vtk.QVTKWidget2()
self.setViewport(self.mWidget)
self.setViewportUpdateMode(QtGui.QGraphicsView.FullViewportUpdate)
self.mScene = MyOpenGLScene(self.mWidget.context())
self.setScene(self.mScene)
self.mRen = vtk.vtkRenderer()
self.mRen.SetBackground(0,0,0)
self.mRen.SetBackground2(1,1,1)
self.mRen.SetGradientBackground(1)
textActor = vtk.vtkTextActor3D()
textActor.SetInput("Qt & VTK!!")
self.mRen.AddViewProp(textActor)
self.mRen.ResetCamera()
self.mWidget.GetRenderWindow().AddRenderer(self.mRen)
self.mWidget.GetRenderWindow().SetSwapBuffers(0)
def Show(func, pos=(0, 0, 0)):
global R
PFS = vtk.vtkParametricFunctionSource()
PFS.SetParametricFunction(func)
M = vtk.vtkPolyDataMapper()
M.SetInputConnection(PFS.GetOutputPort())
A = vtk.vtkActor()
A.SetPosition(pos)
A.SetMapper(M)
A.SetProperty(P1)
A.SetBackfaceProperty(P2)
R.AddActor(A)
TA3 = vtk.vtkTextActor3D()
TA3.SetInput(func.GetClassName().replace('vtkParametric', ''))
TA3.GetTextProperty().SetFontSize(20)
TA3.SetScale(.02)
TA3.SetPosition(pos[0], pos[1] - 2, pos[2] + .1)
R.AddActor(TA3)
return A
def __init__(self, canvas, position, numInputs, numOutputs,
labelList, module_instance):
# parent constructor
DeVIDECanvasObject.__init__(self, canvas, position)
# we'll fill this out later
self._size = (0,0)
self._numInputs = numInputs
self.inputLines = [None] * self._numInputs
self._numOutputs = numOutputs
# be careful with list concatenation!
self.outputLines = [[] for i in range(self._numOutputs)]
self._labelList = labelList
self.module_instance = module_instance
# usually 2-element list. elem0 is 0 for input port and 1 for
# output port. elem1 is the index.
self.draggedPort = None
self.enteredPort = None
self.selected = False
self.blocked = False
# we'll collect the glyph and its ports in this assembly
self.prop1 = vtk.vtkAssembly()
# the main body glyph
self._beb = BeveledEdgeBlock()
self._selection_block = FilledBlock()
self._blocked_block = FilledBlock()
self._rbsa = vtk.vtkActor()
# and of course the label
self._tsa = vtk.vtkTextActor3D()
self._iportssa = \
[(vtk.vtkCubeSource(),vtk.vtkActor()) for _ in
range(self._numInputs)]
self._oportssa = \
[(vtk.vtkCubeSource(),vtk.vtkActor()) for _ in
range(self._numOutputs)]
self._create_geometry()
self.update_geometry()
def __init__(self, canvas, position, numInputs, numOutputs, labelList,
module_instance):
# parent constructor
DeVIDECanvasObject.__init__(self, canvas, position)
# we'll fill this out later
self._size = (0, 0)
self._numInputs = numInputs
self.inputLines = [None] * self._numInputs
self._numOutputs = numOutputs
# be careful with list concatenation!
self.outputLines = [[] for i in range(self._numOutputs)]
self._labelList = labelList
self.module_instance = module_instance
# usually 2-element list. elem0 is 0 for input port and 1 for
# output port. elem1 is the index.
self.draggedPort = None
self.enteredPort = None
self.selected = False
self.blocked = False
# we'll collect the glyph and its ports in this assembly
self.prop1 = vtk.vtkAssembly()
# the main body glyph
self._beb = BeveledEdgeBlock()
self._selection_block = FilledBlock()
self._blocked_block = FilledBlock()
self._rbsa = vtk.vtkActor()
# and of course the label
self._tsa = vtk.vtkTextActor3D()
self._iportssa = \
[(vtk.vtkCubeSource(),vtk.vtkActor()) for _ in
range(self._numInputs)]
self._oportssa = \
[(vtk.vtkCubeSource(),vtk.vtkActor()) for _ in
range(self._numOutputs)]
self._create_geometry()
self.update_geometry()
def AddManyTextActors(baseTextProp):
lut = vtk.vtkColorTransferFunction()
lut.SetColorSpaceToHSV()
lut.AddRGBPoint(0.0, 0.0, 1.0, 1.0)
lut.AddRGBPoint(1.0, 1.0, 1.0, 1.0)
for i in range(0, 10):
name = "ia" + str(i)
self.textActors[name] = vtk.vtkTextActor3D()
self.textActors[name].SetOrientation(0, i*36, 0)
#self.textActors[name].SetPosition(math.cos(i * 0.0314), 0, 0)
# This adjustment is needed to reduce the diffierence
# between the Tcl and Python versions.
self.textActors[name].SetOrigin(0, -0.127878, 0)
tprop = self.textActors[name].GetTextProperty()
tprop.ShallowCopy(baseTextProp)
value = i / 10.0
tprop.SetColor(lut.GetColor(value))
del lut
def AddManyTextActors(baseTextProp):
lut = vtk.vtkColorTransferFunction()
lut.SetColorSpaceToHSV()
lut.AddRGBPoint(0.0, 0.0, 1.0, 1.0)
lut.AddRGBPoint(1.0, 1.0, 1.0, 1.0)
for i in range(0, 10):
name = "ia" + str(i)
self.textActors[name] = vtk.vtkTextActor3D()
self.textActors[name].SetOrientation(0, i*36, 0)
#self.textActors[name].SetPosition(math.cos(i * 0.0314), 0, 0)
# This adjustment is needed to reduce the diffierence
# between the Tcl and Python versions.
self.textActors[name].SetOrigin(0, -0.127878, 0)
tprop = self.textActors[name].GetTextProperty()
tprop.ShallowCopy(baseTextProp)
value = i / 10.0
tprop.SetColor(lut.GetColor(value))
del lut
def __init__(self, screen_log):
self.name = ""
self.x_pos = 0
self.y_pos = 0
self.height = 0.0
self.max_load = 1
self.max_jobs = 1
self.up_state = True
self.rgb = [0.0, 0.0, 0.0]
self.grid_scale = 6.0
self.box_scale = 4.0
self.box_actor = vtkActor()
self.label_actor = vtkTextActor3D()
self.state = None
self.num_processors = None
self.properties = None
self.jobs = []
self.status = {}
self.box = vtkCubeSource()
self.norm_jobs = 0.0
self.norm_load = 0.0
self.screen_log = screen_log
self.logger = logging.getLogger("")
def Show(data,pos=(0,0,0)):
# Show a vtkData by creating a Mapper, an Actor
# and inserting the Actor in the Renderer.
# also add a text label with the data classname
global R
if data.IsA('vtkPolyData'):
M = vtk.vtkPolyDataMapper()
else:
M = vtk.vtkDataSetMapper()
M.SetInputData( data )
A = vtk.vtkActor()
A.SetMapper(M)
A.GetProperty().EdgeVisibilityOn()
A.GetProperty().SetEdgeColor(.3,.3,.3)
A.SetPosition(pos)
TA3 = vtk.vtkTextActor3D()
TA3.SetInput(data.GetClassName())
TA3.GetTextProperty().SetFontSize(24)
TA3.SetScale(.02)
TA3.SetPosition(pos[0], pos[1]-1, pos[2]+.1)
R.AddActor(TA3)
R.AddActor(A)
return A
and acts as a convenient wrapper for a vtkTextMapper/vtkActor2D pair.
Set the text property/attributes through the vtkTextProperty associated
to this actor.
'''
TA = vtk.vtkTextActor()
TA.SetInput('TextActor')
TA.GetTextProperty().SetFontSize(24)
R.AddActor(TA)
'''
vtkTextActor3D: An actor that displays text.
The input text is rendered into a buffer, which in turn
is used as a texture applied onto a quad (a vtkImageActor is used under the hood).
'''
TA3 = vtk.vtkTextActor3D()
TA3.SetInput('TextActor3D')
TA3.GetTextProperty().SetFontSize(24)
TA3.SetScale(.01)
R.AddActor(TA3)
'''
vtkVectorText: create polygonal text
vtkVectorText generates vtkPolyData from an input text string.
Besides the ASCII alphanumeric characters a-z,A-Z, 0-9, vtkVectorText also supports ASCII punctuation marks.
(The supported ASCII character set are the codes (33-126) inclusive.)
The only control character supported is the line feed character "\n", which advances to a new line.
To use thie class, you normally couple it with a vtkPolyDataMapper and a vtkActor.
In this case you would use the vtkActors transformation methods to position, orient, and scale the text.
You may also wish to use a vtkFollower to orient the text so that it always faces the camera.
'''
