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######################################################## |
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# |
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# Copyright (c) 2003-2010 by University of Queensland |
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# Earth Systems Science Computational Center (ESSCC) |
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# http://www.uq.edu.au/esscc |
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# |
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# Primary Business: Queensland, Australia |
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# Licensed under the Open Software License version 3.0 |
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# http://www.opensource.org/licenses/osl-3.0.php |
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# |
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######################################################## |
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|
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__copyright__="""Copyright (c) 2003-2010 by University of Queensland |
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Earth Systems Science Computational Center (ESSCC) |
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http://www.uq.edu.au/esscc |
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Primary Business: Queensland, Australia""" |
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__license__="""Licensed under the Open Software License version 3.0 |
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http://www.opensource.org/licenses/osl-3.0.php""" |
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__url__="https://launchpad.net/escript-finley" |
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|
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""" |
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:var __author__: name of author |
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:var __copyright__: copyrights |
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:var __license__: licence agreement |
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:var __url__: url entry point on documentation |
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:var __version__: version |
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:var __date__: date of the version |
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""" |
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|
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__author__="John Ngui, john.ngui@uq.edu.au" |
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|
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from esys.escript import getMPISizeWorld |
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if getMPISizeWorld()==1: import vtk |
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|
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class Tube: |
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""" |
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Class that defines the tube wrapped around the streamlines. |
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""" |
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|
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def __init__(self): |
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""" |
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Initialise the tube. |
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""" |
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if getMPISizeWorld()>1: |
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raise ValueError,"pyvisi.Tube is not running on more than one processor." |
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self.__vtk_tube = vtk.vtkTubeFilter() |
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|
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def _setupTube(self, object): |
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""" |
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Setup the tube. |
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|
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:type object: vtkPolyData, etc |
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:param object: Input for the tube |
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""" |
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|
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self.__object = object |
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|
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self.__setInput() |
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# Default radius of the tube is 0.02. |
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self.setTubeRadius(0.02) |
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# Default number of sides for the tube is 12. |
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self.setTubeNumberOfSides(12) |
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self.setTubeRadiusToVaryByVector() |
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|
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def __setInput(self): |
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""" |
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Set the input for the tube. |
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""" |
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|
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self.__vtk_tube.SetInput(self.__object) |
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|
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def setTubeRadius(self, radius): |
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""" |
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Set the radius of the tube. |
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|
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:type radius: Number |
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:param radius: Radius of the tube |
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""" |
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|
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self.__vtk_tube.SetRadius(radius) |
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|
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def setTubeNumberOfSides(self, sides): |
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""" |
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Set the number of sides for the tube. Minimum number of sides is 3. |
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The larger the number of sides, the higher the quality. |
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|
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:type sides: Number |
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:param sides: Number of sides for the tube |
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""" |
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|
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self.__vtk_tube.SetNumberOfSides(sides) |
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|
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def setTubeRadiusToVaryByVector(self): |
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""" |
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Set the radius to vary by vector data. |
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""" |
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|
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self.__vtk_tube.SetVaryRadiusToVaryRadiusByVector() |
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|
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def setTubeRadiusToVaryByScalar(self): |
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""" |
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Set the radius to vary by scalar data. |
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""" |
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|
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self.__vtk_tube.SetVaryRadiusToVaryRadiusByScalar() |
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|
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def _getTubeOutput(self): |
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""" |
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Return the output of the tube. |
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|
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:rtype: vtkPolyData |
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:return: Polygonal data |
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""" |
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|
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return self.__vtk_tube.GetOutput() |
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