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#!/usr/bin/env python
import sys
import math
from functools import partial
import vtk
from vtk.test import Testing
from vtk.util.misc import vtkGetDataRoot
from Tkinter import Pack
VTK_DATA_ROOT = vtkGetDataRoot()
import Tkinter
#from vtk.tk.vtkTkRenderWindowInteractor import vtkTkRenderWindowInteractor
from vtk.tk.vtkTkRenderWidget import vtkTkRenderWidget
from vtk.tk.vtkTkImageViewerWidget import vtkTkImageViewerWidget
# Tkinter constants.
E = Tkinter.E
W = Tkinter.W
N = Tkinter.N
S = Tkinter.S
HORIZONTAL = Tkinter.HORIZONTAL
VERTICAL = Tkinter.VERTICAL
RIGHT = Tkinter.RIGHT
LEFT = Tkinter.LEFT
TOP = Tkinter.TOP
BOTTOM = Tkinter.BOTTOM
X = Tkinter.X
BOTH = Tkinter.BOTH
NO = Tkinter.NO
YES = Tkinter.YES
NORMAL = Tkinter.NORMAL
DISABLED = Tkinter.DISABLED
TRUE = Tkinter.TRUE
FALSE = Tkinter.FALSE
GROOVE = Tkinter.GROOVE
INSERT = Tkinter.INSERT
END = Tkinter.END
class TestTextActor3DViewer(Testing.vtkTest):
'''
Provide a testing framework for for TestTextActor3D.
Note:
root, the top-level widget for Tk,
tkrw, the vtkTkRenderWidget and
renWin, the vtkRenderindow
are accessible from any function in this class
after SetUp() has run.
'''
def SetUp(self):
'''
Set up cursor3D
'''
def OnClosing():
self.root.quit()
def AddSphere(ren):
objSource = vtk.vtkSphereSource()
objMapper = vtk.vtkPolyDataMapper()
objMapper.SetInputConnection(objSource.GetOutputPort())
objActor = vtk.vtkActor()
objActor.SetMapper(objMapper)
objActor.GetProperty().SetRepresentationToWireframe()
print "Sphere:", objActor.GetOrigin()
ren.AddActor(objActor)
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)
# Add many text actors.
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
# Update all text actors
def UpdateTextActors(event):
orientation = self.scaleOrientation.get()
fontSize = self.scaleFontSize.get()
scale = self.scaleScale.get() / 10000.0
text = self.entryText.get("1.0",'end+1c')
opacity = self.scaleOpacity.get()
for actor in self.textActors.values():
actor.SetScale(scale)
actor.SetInput(text)
tprop = actor.GetTextProperty()
tprop.SetFontSize(fontSize)
tprop.SetOrientation(orientation)
tprop.SetOpacity(opacity)
self.renWin.Render()
ren = vtk.vtkRenderer()
ren.SetBackground(0.1, 0.2, 0.4)
self.renWin = vtk.vtkRenderWindow()
self.renWin.AddRenderer(ren)
#self.renWin.SetSize(600, 600)
self.root = Tkinter.Tk()
self.root.title("TestTextActor3D.py")
# Define what to do when the user explicitly closes a window.
self.root.protocol("WM_DELETE_WINDOW", OnClosing)
# The Tk render widget.
self.tkrw = vtkTkRenderWidget(
self.root, width=450, height=450, rw=self.renWin)
self.tkrw.BindTkRenderWidget()
#self.renWin.GetInteractor().GetInteractorStyle().SetCurrentStyleToTrackballCamera()
self.tkrw.pack(side=LEFT, fill=BOTH, expand=YES)
# Base text property
baseTextProp = vtk.vtkTextProperty()
baseTextProp.SetFontSize(48)
baseTextProp.ShadowOn()
baseTextProp.SetColor(1.0, 0.0, 0.0)
baseTextProp.SetFontFamilyToArial()
baseScale = 0.0025
baseText = "This is a test"
# The text actors
self.textActors = dict()
scaleLength = 200
controls = Tkinter.Frame(self.root, relief=GROOVE, bd=2)
controls.pack(
padx=2, pady=2, anchor=N+W, side=LEFT, fill=BOTH, expand=NO)
# Add control of text.
self.entryText = Tkinter.Text(controls, height=1, width=25)
self.entryText.insert(INSERT,baseText)
self.entryText.pack(padx=4, pady=4, side=TOP, fill=X, expand=NO)
self.entryText.bind('<Return>',UpdateTextActors)
self.entryText.bind('<FocusOut>',UpdateTextActors)
# Add control of orientation.
self.scaleOrientation = Tkinter.Scale(controls,
from_=0, to=360, res=1,
length= scaleLength,
orient=HORIZONTAL,
label="Text orientation:",
command=UpdateTextActors)
self.scaleOrientation.set(baseTextProp.GetOrientation())
self.scaleOrientation.pack(side=TOP, fill=X, expand=NO)
# Add control of font size.
self.scaleFontSize = Tkinter.Scale(controls,
from_=5, to=150, res=1,
length= scaleLength,
orient=HORIZONTAL,
label="Font Size:",
command=UpdateTextActors)
self.scaleFontSize.set(baseTextProp.GetFontSize())
self.scaleFontSize.pack(side=TOP, fill=X, expand=NO)
# Add control of scale.
self.scaleScale = Tkinter.Scale(controls,
from_=0, to=100, res=1,
length= scaleLength,
orient=HORIZONTAL,
label="Actor scale:",
command=UpdateTextActors)
self.scaleScale.set(baseScale * 10000.0)
self.scaleScale.pack(side=TOP, fill=X, expand=NO)
# Add control of scale.
self.scaleOpacity = Tkinter.Scale(controls,
from_=0, to=1.0, res=0.01,
length= scaleLength,
orient=HORIZONTAL,
label="Text opacity:",
command=UpdateTextActors)
self.scaleOpacity.set(baseTextProp.GetOpacity())
self.scaleOpacity.pack(side=TOP, fill=X, expand=NO)
# Create and add all the text actors.
if False:
AddSphere(ren)
AddOneTextActor(baseTextProp)
ren.ResetCamera()
else:
AddManyTextActors(baseTextProp)
ren.ResetCamera()
ren.GetActiveCamera().Elevation(30.0)
ren.GetActiveCamera().Dolly(0.40)
UpdateTextActors(0)
for actor in self.textActors.itervalues():
ren.AddActor(actor)
def DoIt(self):
self.SetUp()
self.renWin.Render()
self.tkrw.Render()
self.root.update()
# If you want to interact and use the sliders etc,
# uncomment the following line.
#self.root.mainloop()
img_file = "TestTextActor3D.png"
Testing.compareImage(self.renWin, Testing.getAbsImagePath(img_file))
Testing.interact()
if __name__ == '__main__':
cases = [(TestTextActor3DViewer, 'DoIt')]
del TestTextActor3DViewer
Testing.main(cases)
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