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main.py
209 lines (162 loc) · 6.55 KB
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main.py
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import Tkinter
import vtk
from vtk.tk.vtkTkRenderWidget import vtkTkRenderWidget
from vtk.tk.vtkTkRenderWindowInteractor import vtkTkRenderWindowInteractor
def runfnc(start, target):
print("Starting cell is {}".format(start.get()))
print("Target is ({},{})".format(target[0].get(), target[1].get()))
class MouseInteractorStyle(vtk.vtkInteractorStyle):
def __init__(self, parent=None):
#self.AddObserver("LeftButtonPressEvent", self.leftButtonPressEvent)
#self.AddObserver("KeyPressEvent", self.onKeyPress)
#self.AddObserver("OnChar", self.onChar)
self.AddObserver("CharEvent", self.onChar)
self.LastPickedActor = None
self.LastPickedProperty = vtk.vtkProperty()
self.currentactor = None
self.leftag = None
self.txt_target = None
self.txt_startp = None
self.startp = None
self.target = None
def onChar(self, obj, event):
key = self.GetInteractor().GetKeySym();
if key == "q":
self.txt_startp = vtk.vtkTextActor()
self.txt_startp.SetInput("Click on starting cell")
txtprop = self.txt_startp.GetTextProperty()
txtprop.SetFontFamilyToArial()
txtprop.SetFontSize(18)
txtprop.SetColor(1,1,1)
self.txt_startp.SetDisplayPosition(0,0)
self.ren.AddActor(self.txt_startp)
self.rw.Render()
self.leftag = self.AddObserver("LeftButtonPressEvent", self.chooseStartingCell)
if key == "a":
self.txt_target = vtk.vtkTextActor()
self.txt_target.SetInput("Click target point")
txtprop = self.txt_target.GetTextProperty()
txtprop.SetFontFamilyToArial()
txtprop.SetFontSize(18)
txtprop.SetColor(1,1,1)
self.txt_target.SetDisplayPosition(0,0)
self.ren.AddActor(self.txt_target)
self.rw.Render()
self.leftag = self.AddObserver("LeftButtonPressEvent", self.chooseTarget)
'''
def onKeyPress(self, obj, event):
key = self.GetInteractor().GetKeySym();
if key == "q":
print("You pressed q")
if key == "p":
print("You pressed p")
self.OnChar()
'''
def chooseStartingCell(self, obj, event):
self.startp.set(self.leftButtonPressEvent(obj, event))
self.ren.RemoveActor(self.txt_startp)
self.rw.Render()
def chooseTarget(self, obj, event):
clickPos = self.GetInteractor().GetEventPosition()
coordinate = vtk.vtkCoordinate()
coordinate.SetCoordinateSystemToDisplay()
coordinate.SetValue(clickPos[0], clickPos[1], 0)
world = coordinate.GetComputedWorldValue(self.GetInteractor().GetRenderWindow().GetRenderers().GetFirstRenderer())
self.target[0].set(world[0])
self.target[1].set(world[1])
sphere = vtk.vtkRegularPolygonSource()
sphere.SetCenter(world[0], world[1], 0.0)
sphere.SetRadius(2.0)
sphere.SetNumberOfSides(50)
mapper = vtk.vtkPolyDataMapper()
mapper.SetInputConnection(sphere.GetOutputPort())
mapper.SetScalarVisibility(0)
actor = vtk.vtkActor()
actor.SetMapper(mapper)
actor.GetProperty().SetColor(1.0, 0.0, 0.0)
self.ren.AddActor(actor)
self.RemoveObserver(self.leftag)
self.ren.RemoveActor(self.txt_target)
self.rw.Render()
def leftButtonPressEvent(self, obj, event):
clickPos = self.GetInteractor().GetEventPosition()
picker = vtk.vtkCellPicker()
picker.Pick(clickPos[0], clickPos[1], 0, self.GetDefaultRenderer())
ids = vtk.vtkIdTypeArray()
ids.SetNumberOfComponents(1)
ids.InsertNextValue(picker.GetCellId())
self.NewPickedActor = picker.GetActor()
selectionNode = vtk.vtkSelectionNode()
selectionNode.SetFieldType(vtk.vtkSelectionNode.CELL)
selectionNode.SetContentType(4)
selectionNode.SetSelectionList(ids)
selection = vtk.vtkSelection()
selection.AddNode(selectionNode)
extractSelection = vtk.vtkExtractSelection()
extractSelection.SetInputData(0, self.user_data)
extractSelection.SetInputData(1, selection)
extractSelection.Update()
selected = extractSelection.GetOutput()
if selected:
if not self.currentactor:
newactor = vtk.vtkActor()
self.currectactor = newactor
else:
newactor = self.currentactor
newmapper = vtk.vtkDataSetMapper()
newmapper.SetInputData(selected)
newmapper.SetScalarVisibility(0)
newactor.SetMapper(newmapper)
newactor.GetProperty().SetColor(0.0, 1.0, 0.0)
newactor.GetProperty().EdgeVisibilityOn()
self.ren.AddActor(newactor)
self.rw.Render()
if self.LastPickedActor:
self.LastPickedActor.GetProperty().SetColor(1.0, 1.0, 1.0)
self.LastPickedActor.GetProperty().EdgeVisibilityOn()
self.LastPickedActor = newactor
self.OnLeftButtonDown()
self.RemoveObserver(self.leftag)
return picker.GetCellId()
reader = vtk.vtkUnstructuredGridReader()
reader.SetFileName("bg.vtk")
reader.Update()
root = Tkinter.Tk()
frame = Tkinter.Frame( root )
frame.pack( fill=Tkinter.BOTH, expand=1, side=Tkinter.TOP )
ren = vtk.vtkRenderer()
renwin = vtk.vtkRenderWindow()
renwin.AddRenderer(ren)
ugrid = reader.GetOutput()
geoFilter = vtk.vtkUnstructuredGridGeometryFilter()
geoFilter.SetInputConnection(reader.GetOutputPort())
geoFilter.Update()
mapper = vtk.vtkDataSetMapper()
mapper.SetInputConnection(geoFilter.GetOutputPort())
mapper.SetScalarVisibility(0)
#mapper.GetInput().GetCellData().SetActiveScalars("oga_cell_status")
actor = vtk.vtkActor()
actor.SetMapper(mapper)
actor.GetProperty().EdgeVisibilityOn()
ren.AddActor(actor)
button = Tkinter.Button(root,text="Quit",command=root.quit)
button.pack(fill='x',expand='t')
start = Tkinter.IntVar()
targetx = Tkinter.DoubleVar()
targety = Tkinter.DoubleVar()
target = [targetx, targety]
but_run = Tkinter.Button(root,text="Run",command= lambda: runfnc(start, target))
but_run.pack(fill='x',expand='t')
interactor = vtkTkRenderWindowInteractor(root, rw=renwin)
interactor.pack(side='top', fill='both', expand=1)
interactor.Initialize()
style = MouseInteractorStyle()
style.SetDefaultRenderer(ren)
style.user_data = ugrid
style.rw = renwin
style.ren = ren
style.startp = start
style.target = target
interactor.SetInteractorStyle(style)
interactor.Start()
root.mainloop()