Python vtk.vtkTextActor() Examples

The following are 3 code examples of vtk.vtkTextActor(). You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may also want to check out all available functions/classes of the module vtk , or try the search function .
Example #1
Source File: wvtk.py    From pyCGNS with GNU Lesser General Public License v2.1 6 votes vote down vote up 
def addPicker(self):
        txtActor = vtk.vtkActor2D()
        self.txtMapper = vtk.vtkTextMapper()
        txtActor.SetMapper(self.txtMapper)
        self.textActor = vtk.vtkTextActor()
        self.textActor.VisibilityOff()
        self.textActor.PickableOff()
        tprop = vtk.vtkTextProperty()
        tprop.SetFontFamilyToArial()
        tprop.SetFontSize(10)
        tprop.BoldOff()
        tprop.ShadowOff()
        tprop.SetColor(self.color)
        self.textActor.SetTextProperty(tprop)
        self.picker = vtk.vtkCellPicker()
        self.picker.SetTolerance(0.001)
        self.picker.AddObserver("EndPickEvent", self.annotatePick)
        self.textrepresentation = vtk.vtkTextRepresentation()
        self.textrepresentation.GetPositionCoordinate().SetCoordinateSystem(3)
        self.textwidget = vtk.vtkTextWidget()
        self.textwidget.SetRepresentation(self.textrepresentation)
        self.textwidget.SetTextActor(self.textActor)
        self.textwidget.SelectableOff()
        self.textwidget.ResizableOff()
Example #2
Source File: wvtk.py    From pyCGNS with GNU Lesser General Public License v2.1 5 votes vote down vote up 
def displayScalars(self, *args):
        self.setPickableOff()
        eventPos = self._iren.GetEventPosition()
        picker = vtk.vtkCellPicker()
        picker.Pick(eventPos[0], eventPos[1], 0.0, self._vtkren)
        cell = picker.GetCellId()
        if cell > -1:
            array = self.cVariables.currentIndex() - 1
            grid = self._currentactor[1].GetMapper().GetInput()
            data = grid.GetCellData().GetArray(array)
            value = data.GetTuple1(cell)
            value = "%.3f" % value
            txt = vtk.vtkTextActor()
            txt.SetInput(value)
            txtprop = txt.GetTextProperty()
            txtprop.SetFontFamilyToArial()
            txtprop.SetFontSize(18)
            txtprop.SetColor(self.color)
            txt.SetDisplayPosition(eventPos[0], eventPos[1])
            self.selectionCellId(grid, cell)
            self._vtkren.AddActor(txt)
            if self.txt is not None:
                self._vtkren.RemoveActor(self.txt)
                self._iren.Render()
            self.txt = txt
        else:
            if self.txt is not None:
                self._vtkren.RemoveActor(self.txt)
            self._vtkren.RemoveActor(self.actorpt)
            self._iren.Render()
        self.setPickableOn()
Example #3
Source File: visualization_3d.py    From gempy with GNU Lesser General Public License v3.0 5 votes vote down vote up 
def set_text(self):
        txt = vtk.vtkTextActor()
        txt.SetInput("Press L to toggle layers visibility \n"
                     "Press R to toggle real time updates \n"
                     "Press H or P to go back to Python \n"
                     "Press Q to quit")
        txtprop = txt.GetTextProperty()
        txtprop.SetFontFamilyToArial()
        txtprop.SetFontSize(18)
        txtprop.SetColor(1, 1, 1)
        txt.SetDisplayPosition(20, 60)

        # assign actor to the renderer
        self.ren_list[0].AddActor(txt)