mylib_text.py

#!/usr/bin/env python
#
# Author: Patrick Brockmann
# Contact: Patrick.Brockmann@ipsl.jussieu.fr
# $Date: $
# $Name: $
# $Revision: $
# History:
# Modification:
#

import vtk

##################################
def CreateTextActor(text, textprop, xpos, ypos,
                    justification="left", fontsize=12,
                    verticaljustification="bottom"):

    textactor = vtk.vtkTextActor()

    textactor.SetInput(text)
    textactor.GetPositionCoordinate().SetCoordinateSystemToNormalizedViewport()
    textactor.SetPosition(xpos, ypos)

    textactor.GetTextProperty().SetFontFamily(textprop.GetFontFamily())
    textactor.GetTextProperty().SetColor(textprop.GetColor())
    textactor.GetTextProperty().SetFontSize(fontsize)

    if justification in (-1, "left"):
        textactor.GetTextProperty().SetJustificationToLeft()
    elif justification in (0, "center", "middle"):
        textactor.GetTextProperty().SetJustificationToCentered()
    elif justification in (1, "right"):
        textactor.GetTextProperty().SetJustificationToRight()

    if verticaljustification in (-1, "bottom"):
        textactor.GetTextProperty().SetVerticalJustificationToBottom()
    elif verticaljustification in (0, "center", "middle"):
        textactor.GetTextProperty().SetVerticalJustificationToCentered()
    elif verticaljustification in (1, "top"):
        textactor.GetTextProperty().SetVerticalJustificationToTop()

    return textactor