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|
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######################################################## |
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# |
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# Copyright (c) 2003-2008 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) 2003-2008 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__="http://www.uq.edu.au/esscc/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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|
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import vtk |
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from mapper import DataSetMapper |
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from actor import Actor3D |
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from lookuptable import LookupTable |
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from outline import Outline |
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from constant import Viewport, Color, Lut, ColorMode |
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from contourmodule import ContourModule |
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from average import CellDataToPointData |
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|
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# NOTE: DataSetMapper, Actor3D and ContourModule were inherited to allow |
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# access to their public methods from the driver. |
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class Contour(DataSetMapper, Actor3D, ContourModule): |
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""" |
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Class that shows a scalar field by contour surfaces. The contour surfaces |
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can either be colored or grey-scaled, depending on the lookup table used. |
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This class can also be used to generate iso surfaces. |
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""" |
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|
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# The SOUTH_WEST default viewport is used when there is only one viewport. |
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# This saves the user from specifying the viewport when there is only one. |
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# If no lut is specified, the color scheme will be used. |
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def __init__(self, scene, data_collector, viewport = Viewport.SOUTH_WEST, |
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lut = Lut.COLOR, cell_to_point = False, outline = True): |
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""" |
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Initialise the Contour. |
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|
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@attention: The source can either be point or cell data. If the |
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source is cell data, a conversion to point data may or may not be |
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required, in order for the object to be rendered correctly. |
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If a conversion is needed, the 'cell_to_point' flag must be set to |
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'True', otherwise 'False' (which is the default). On occasions, an |
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inaccurate object may be rendered from cell data even after conversion. |
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|
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@type scene: L{Scene <scene.Scene>} object |
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@param scene: Scene in which objects are to be rendered on |
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@type data_collector: L{DataCollector <datacollector.DataCollector>} |
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object |
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@param data_collector: Deal with source of data for visualisation |
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@type viewport: L{Viewport <constant.Viewport>} constant |
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@param viewport: Viewport in which objects are to be rendered on |
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@type lut : L{Lut <constant.Lut>} constant |
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@param lut: Lookup table color scheme |
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@type cell_to_point: Boolean |
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@param cell_to_point: Converts cell data to point data (by averaging) |
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@type outline: Boolean |
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@param outline: Places an outline around the domain surface |
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""" |
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|
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self.__data_collector = data_collector |
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self.__viewport = viewport |
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self.__lut = lut |
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self.__cell_to_point = cell_to_point |
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self.__outline = outline |
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|
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self.__modified = True # Keeps track whether Contour has been modified. |
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ContourModule.__init__(self) |
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DataSetMapper.__init__(self) |
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Actor3D.__init__(self) |
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scene._addVisualizationModules(self) |
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|
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# ----- Outline ----- |
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|
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# NOTE: Changes cannot be made to the Outline's properties from the |
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# driver. |
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if(self.__outline == True): |
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outline = Outline(self.__data_collector._getDataCollectorOutput()) |
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mapper = DataSetMapper() |
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mapper._setupDataSetMapper(outline._getOutlineOutput()) |
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|
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actor3D = Actor3D() |
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actor3D._setupActor3D(mapper._getDataSetMapper()) |
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# Default outline color is black. |
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actor3D.setColor(Color.BLACK) |
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|
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# Default line width is 1. |
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actor3D._setLineWidth(1) |
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scene._addActor3D(self.__viewport, actor3D._getActor3D()) |
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|
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# ----- Contour ----- |
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|
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# NOTE: Lookup table color mapping (color or grey scale) MUST be set |
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# before DataSetMapper. If it is done after DataSetMapper, no effect |
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# will take place. |
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if(self.__lut == Lut.COLOR): # Colored lookup table. |
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lookup_table = LookupTable() |
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lookup_table._setTableValue() |
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elif(self.__lut == Lut.GREY_SCALE): # Grey scaled lookup table. |
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lookup_table = LookupTable() |
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lookup_table._setLookupTableToGreyScale() |
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|
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if(self.__cell_to_point == True): # Converts cell data to point data. |
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c2p = CellDataToPointData( |
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self.__data_collector._getDataCollectorOutput()) |
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self._setupContourModule(c2p._getCellToPointOutput()) |
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elif(self.__cell_to_point == False): # No conversion happens. |
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self._setupContourModule( |
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self.__data_collector._getDataCollectorOutput()) |
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|
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self._setupDataSetMapper(self._getContourModuleOutput(), |
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lookup_table._getLookupTable()) |
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|
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self._setupActor3D(self._getDataSetMapper()) |
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scene._addActor3D(self.__viewport, self._getActor3D()) |
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|
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def _isModified(self): |
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""" |
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Return whether the Contour or DataCollector has been modified. |
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|
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@rtype: Boolean |
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@return: True or False |
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""" |
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|
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return self.__modified or self.__data_collector._isModified() |
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|
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def _render(self, scene): |
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""" |
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Render the contour. |
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|
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@type scene: L{Scene <scene.Scene>} object |
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@param scene: Scene in which objects are to be rendered on |
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""" |
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|
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if (self._isModified() == True): |
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if(self.__data_collector._isScalarSet() == True): |
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self.__data_collector._setActiveScalar() |
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|
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# By default 10 contours are generated and the scalar range is |
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# based on the scalar data range. |
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contours = 10 |
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lower_range = self.__data_collector._getScalarRange()[0] |
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upper_range = self.__data_collector._getScalarRange()[1] |
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|
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if(self._isContoursSet() == True): |
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contours = None |
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if(self._isLowerRangeSet() == True): |
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lower_range = None |
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if(self._isUpperRangeSet() == True): |
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upper_range = None |
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|
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self.generateContours(contours, lower_range, upper_range) |
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self._generateContours() |
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|
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# self._isScalarRangeSet checks whether the scalar range has been |
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# specified by the user. If it has, then the scalar range |
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# read from the source will be ignored. |
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if(not(self._isScalarRangeSet())): |
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self._setScalarRange(self.__data_collector._getScalarRange()) |
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self.__modified = False |
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|
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|
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############################################################################### |
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|
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|
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from transform import Transform |
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from plane import Plane |
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from cutter import Cutter |
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|
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# NOTE: DataSetMapper, Actor3D, ContourModule, Transform, Plane and Cutter |
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# were inherited to allow access to their public methods from the driver. |
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class ContourOnPlaneCut(DataSetMapper, Actor3D, ContourModule, Transform, |
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Plane, Cutter): |
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""" |
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This class works in a similar way to L{MapOnPlaneCut <map.MapOnPlaneCut>}, |
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except that it shows a scalar field by contour surfaces cut using a plane. |
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""" |
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|
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# The SOUTH_WEST default viewport is used when there is only one viewport. |
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# This saves the user from specifying the viewport when there is only one. |
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# If no lut is specified, the color scheme will be used. |
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def __init__(self, scene, data_collector, viewport = Viewport.SOUTH_WEST, |
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lut = Lut.COLOR, cell_to_point = False, outline = True): |
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|
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""" |
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Initialise the ContourOnPlaneCut. |
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|
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@attention: The source can either be point or cell data. If the |
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source is cell data, a conversion to point data may or may not be |
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required, in order for the object to be rendered correctly. |
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If a conversion is needed, the 'cell_to_point' flag must be set to |
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'True', otherwise 'False' (which is the default). |
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|
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@type scene: L{Scene <scene.Scene>} object |
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@param scene: Scene in which objects are to be rendered on |
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@type data_collector: L{DataCollector <datacollector.DataCollector>} |
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object |
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@param data_collector: Deal with source of data for visualisation |
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@type viewport: L{Viewport <constant.Viewport>} constant |
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@param viewport: Viewport in which objects are to be rendered on |
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@type lut : L{Lut <constant.Lut>} constant |
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@param lut: Lookup table color scheme |
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@type cell_to_point: Boolean |
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@param cell_to_point: Converts cell data to point data (by averaging) |
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@type outline: Boolean |
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@param outline: Places an outline around the domain surface |
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""" |
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|
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self.__data_collector = data_collector |
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self.__viewport = viewport |
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self.__lut = lut |
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self.__cell_to_point = cell_to_point |
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self.__outline = outline |
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|
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# Keeps track whether ContourOnPlaneCut has been modified. |
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self.__modified = True |
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Transform.__init__(self) |
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Plane.__init__(self) |
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Cutter.__init__(self) |
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ContourModule.__init__(self) |
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DataSetMapper.__init__(self) |
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Actor3D.__init__(self) |
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scene._addVisualizationModules(self) |
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|
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# ----- Outline ----- |
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|
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# NOTE: Changes cannot be made to the Outline's properties from the |
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# driver. |
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if(self.__outline == True): |
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outline = Outline(self.__data_collector._getDataCollectorOutput()) |
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mapper = DataSetMapper() |
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mapper._setupDataSetMapper(outline._getOutlineOutput()) |
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|
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actor3D = Actor3D() |
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actor3D._setupActor3D(mapper._getDataSetMapper()) |
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# Default outline color is black. |
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actor3D.setColor(Color.BLACK) |
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|
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# Default line width is 1. |
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actor3D._setLineWidth(1) |
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scene._addActor3D(self.__viewport, actor3D._getActor3D()) |
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|
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# ----- Contour on a cut plane ----- |
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|
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# NOTE: Lookup table color mapping (color or grey scale) MUST be set |
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# before DataSetMapper. If it is done after DataSetMapper, no effect |
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# will take place. |
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if(self.__lut == Lut.COLOR): # Colored lookup table. |
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lookup_table = LookupTable() |
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lookup_table._setTableValue() |
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elif(self.__lut == Lut.GREY_SCALE): # Grey scaled lookup table. |
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lookup_table = LookupTable() |
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lookup_table._setLookupTableToGreyScale() |
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|
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self._setupPlane(self._getTransform()) |
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|
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if(self.__cell_to_point == True): # Converts cell data to point data. |
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c2p = CellDataToPointData(self.__data_collector._getOutput()) |
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self._setupCutter(c2p._getCellToPointOutput(), self._getPlane()) |
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elif(self.__cell_to_point == False): # No conversion happens. |
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self._setupCutter(self.__data_collector._getDataCollectorOutput(), |
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self._getPlane()) |
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|
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self._setupContourModule(self._getCutterOutput()) |
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self._setupDataSetMapper(self._getContourModuleOutput(), |
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lookup_table._getLookupTable()) |
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|
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self._setupActor3D(self._getDataSetMapper()) |
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scene._addActor3D(self.__viewport, self._getActor3D()) |
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|
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def _isModified(self): |
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""" |
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Return whether the ContourOnPlaneCut or DataCollector has been modified. |
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|
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@rtype: Boolean |
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@return: True or False |
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""" |
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|
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return self.__modified or self.__data_collector._isModified() |
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|
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def _render(self, scene): |
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""" |
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Render the contour cut using a plane. |
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|
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@type scene: L{Scene <scene.Scene>} object |
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@param scene: Scene in which objects are to be rendered on |
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""" |
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|
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if (self._isModified() == True): |
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if(self.__data_collector._isScalarSet() == True): |
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self.__data_collector._setActiveScalar() |
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|
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# By default 10 contours are generated and the scalar range is based |
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# on the scalar data range. |
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contours = 10 |
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lower_range = self.__data_collector._getScalarRange()[0] |
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upper_range = self.__data_collector._getScalarRange()[1] |
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|
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if(self._isContoursSet() == True): |
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contours = None |
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if(self._isLowerRangeSet() == True): |
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lower_range = None |
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if(self._isUpperRangeSet() == True): |
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upper_range = None |
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|
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self.generateContours(contours, lower_range, upper_range) |
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self._generateContours() |
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|
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# self._isScalarRangeSet checks whether the scalar range has been |
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# specified by the user. If it has, then the scalar range |
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# read from the source will be ignored. |
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if(not(self._isScalarRangeSet())): |
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self._setScalarRange(self.__data_collector._getScalarRange()) |
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self.__modified = False |
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|
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|
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############################################################################### |
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|
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|
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from clipper import Clipper |
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|
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# NOTE: DataSetMapper, Actor3D, ContourModule, Transform, Plane and Clipper |
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# were inherited to allow access to their public methods from the driver. |
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class ContourOnPlaneClip(DataSetMapper, Actor3D, ContourModule, Transform, |
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Plane, Clipper): |
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""" |
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This class works in a similar way to L{MapOnPlaneClip <map.MapOnPlaneClip>} |
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, except that it shows a scalar field by contour surfaces clipped using |
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a plane. |
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""" |
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|
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# The SOUTH_WEST default viewport is used when there is only one viewport. |
| 354 |
# This saves the user from specifying the viewport when there is only one. |
| 355 |
# If no lut is specified, the color scheme will be used. |
| 356 |
def __init__(self, scene, data_collector, viewport = Viewport.SOUTH_WEST, |
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lut = Lut.COLOR, cell_to_point = False, outline = True): |
| 358 |
|
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""" |
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Initialise the ContourOnPlaneClip. |
| 361 |
|
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@attention: The source can either be point or cell data. If the |
| 363 |
source is cell data, a conversion to point data may or may not be |
| 364 |
required, in order for the object to be rendered correctly. |
| 365 |
If a conversion is needed, the 'cell_to_point' flag must be set to |
| 366 |
'True', otherwise 'False' (which is the default). |
| 367 |
|
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@type scene: L{Scene <scene.Scene>} object |
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@param scene: Scene in which objects are to be rendered on |
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@type data_collector: L{DataCollector <datacollector.DataCollector>} |
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object |
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@param data_collector: Deal with source of data for visualisation |
| 373 |
@type viewport: L{Viewport <constant.Viewport>} constant |
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@param viewport: Viewport in which objects are to be rendered on |
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@type lut : L{Lut <constant.Lut>} constant |
| 376 |
@param lut: Lookup table color scheme |
| 377 |
@type cell_to_point: Boolean |
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@param cell_to_point: Converts cell data to point data (by averaging) |
| 379 |
@type outline: Boolean |
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@param outline: Places an outline around the domain surface |
| 381 |
""" |
| 382 |
|
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self.__data_collector = data_collector |
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self.__viewport = viewport |
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self.__lut = lut |
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self.__cell_to_point = cell_to_point |
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self.__outline = outline |
| 388 |
|
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# Keeps track whether ContourOnPlaneClip has been modified. |
| 390 |
self.__modified = True |
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Transform.__init__(self) |
| 392 |
Plane.__init__(self) |
| 393 |
Clipper.__init__(self) |
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ContourModule.__init__(self) |
| 395 |
DataSetMapper.__init__(self) |
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Actor3D.__init__(self) |
| 397 |
scene._addVisualizationModules(self) |
| 398 |
|
| 399 |
# ----- Outline ----- |
| 400 |
|
| 401 |
# NOTE: Changes cannot be made to the Outline's properties from the |
| 402 |
# driver. |
| 403 |
if(self.__outline == True): |
| 404 |
outline = Outline(self.__data_collector._getDataCollectorOutput()) |
| 405 |
mapper = DataSetMapper() |
| 406 |
mapper._setupDataSetMapper(outline._getOutlineOutput()) |
| 407 |
|
| 408 |
actor3D = Actor3D() |
| 409 |
actor3D._setupActor3D(mapper._getDataSetMapper()) |
| 410 |
# Default outline color is black. |
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actor3D.setColor(Color.BLACK) |
| 412 |
|
| 413 |
# Default line width is 1. |
| 414 |
actor3D._setLineWidth(1) |
| 415 |
scene._addActor3D(self.__viewport, actor3D._getActor3D()) |
| 416 |
|
| 417 |
# ----- Contour on a clipped plane ----- |
| 418 |
|
| 419 |
# NOTE: Lookup table color mapping (color or grey scale) MUST be set |
| 420 |
# before DataSetMapper. If it is done after DataSetMapper, no effect |
| 421 |
# will take place. |
| 422 |
if(self.__lut == Lut.COLOR): # Colored lookup table. |
| 423 |
lookup_table = LookupTable() |
| 424 |
lookup_table._setTableValue() |
| 425 |
elif(self.__lut == Lut.GREY_SCALE): # Grey scaled lookup table. |
| 426 |
lookup_table = LookupTable() |
| 427 |
lookup_table._setLookupTableToGreyScale() |
| 428 |
|
| 429 |
self._setupPlane(self._getTransform()) |
| 430 |
|
| 431 |
if(self.__cell_to_point == True): # Converts cell data to point data. |
| 432 |
c2p = CellDataToPointData( |
| 433 |
self.__data_collector._getDataCollectorOutput()) |
| 434 |
self._setupClipper(c2p._getCellToPointOutput(), self._getPlane()) |
| 435 |
elif(self.__cell_to_point == False): # No conversion happens. |
| 436 |
self._setupClipper(self.__data_collector._getDataCollectorOutput(), |
| 437 |
self._getPlane()) |
| 438 |
|
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self._setClipFunction() |
| 440 |
self._setupContourModule(self._getClipperOutput()) |
| 441 |
|
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self._setupDataSetMapper(self._getContourModuleOutput(), |
| 443 |
lookup_table._getLookupTable()) |
| 444 |
|
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self._setupActor3D(self._getDataSetMapper()) |
| 446 |
scene._addActor3D(self.__viewport, self._getActor3D()) |
| 447 |
|
| 448 |
def _isModified(self): |
| 449 |
""" |
| 450 |
Return whether the ContourOnPlaneClip or DataCollector has been |
| 451 |
modified. |
| 452 |
|
| 453 |
@rtype: Boolean |
| 454 |
@return: True or False |
| 455 |
""" |
| 456 |
|
| 457 |
return self.__modified or self.__data_collector._isModified() |
| 458 |
|
| 459 |
def _render(self, scene): |
| 460 |
""" |
| 461 |
Render the contour clip using a plane. |
| 462 |
|
| 463 |
@type scene: L{Scene <scene.Scene>} object |
| 464 |
@param scene: Scene in which objects are to be rendered on |
| 465 |
""" |
| 466 |
|
| 467 |
if (self._isModified() == True): |
| 468 |
if(self.__data_collector._isScalarSet() == True): |
| 469 |
self.__data_collector._setActiveScalar() |
| 470 |
|
| 471 |
# By default 10 contours are generated and the scalar range is based |
| 472 |
# on the scalar data range. |
| 473 |
contours = 10 |
| 474 |
lower_range = self.__data_collector._getScalarRange()[0] |
| 475 |
upper_range = self.__data_collector._getScalarRange()[1] |
| 476 |
|
| 477 |
if(self._isContoursSet() == True): |
| 478 |
contours = None |
| 479 |
if(self._isLowerRangeSet() == True): |
| 480 |
lower_range = None |
| 481 |
if(self._isUpperRangeSet() == True): |
| 482 |
upper_range = None |
| 483 |
|
| 484 |
self.generateContours(contours, lower_range, upper_range) |
| 485 |
self._generateContours() |
| 486 |
|
| 487 |
# self._isScalarRangeSet checks whether the scalar range has been |
| 488 |
# specified by the user. If it has, then the scalar range |
| 489 |
# read from the source will be ignored. |
| 490 |
if(not(self._isScalarRangeSet())): |
| 491 |
self._setScalarRange(self.__data_collector._getScalarRange()) |
| 492 |
self.__modified = False |
| 493 |
|
| 494 |
|
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