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""" |
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@author: John NGUI |
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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, VizType, 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). |
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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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# NOTE: Actor3D is inherited and there are two instances declared here. |
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# As a result, when methods from Actor3D is invoked from the driver, |
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# only the methods associated with the latest instance (which in this |
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# case is the Actor3D for the contour) can be executed. Actor3D |
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# methods associated with Outline cannot be invoked from the driver. |
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# They can only be called within here, which is why Outline must |
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# be place before the contour as there is unlikely to be any changes |
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# made to the Outline's Actor3D. |
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|
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# ----- Outline ----- |
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|
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if(outline == True): |
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outline = Outline(data_collector._getOutput()) |
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DataSetMapper.__init__(self, outline._getOutput()) |
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|
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Actor3D.__init__(self, DataSetMapper._getDataSetMapper(self)) |
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# Default outline color is black. |
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Actor3D.setColor(self, Color.BLACK) |
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|
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# Default line width is 1. |
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Actor3D._setLineWidth(self, 1) |
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scene._addActor3D(viewport, Actor3D._getActor3D(self)) |
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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(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(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(cell_to_point == True): # Converts cell data to point data. |
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c2p = CellDataToPointData(data_collector._getOutput()) |
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ContourModule.__init__(self, c2p._getOutput()) |
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elif(cell_to_point == False): # No conversion happens. |
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ContourModule.__init__(self, data_collector._getOutput()) |
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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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ContourModule.generateContours(self, 10, |
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data_collector._getScalarRange()[0], |
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data_collector._getScalarRange()[1]) |
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|
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DataSetMapper.__init__(self, ContourModule._getOutput(self), |
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lookup_table._getLookupTable()) |
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DataSetMapper._setScalarRange(self, data_collector._getScalarRange()) |
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|
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data_collector._paramForUpdatingMultipleSources(VizType.CONTOUR, |
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ColorMode.SCALAR, DataSetMapper._getDataSetMapper(self), |
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ContourModule._getContour(self)) |
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|
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Actor3D.__init__(self, DataSetMapper._getDataSetMapper(self)) |
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scene._addActor3D(viewport, Actor3D._getActor3D(self)) |
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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 were |
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# 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 on 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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# NOTE: Actor3D is inherited and there are two instances declared here. |
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# As a result, when methods from Actor3D is invoked from the driver, |
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# only the methods associated with the latest instance (which in this |
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# case is the Actor3D for the contour) can be executed. Actor3D |
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# methods associated with Outline cannot be invoked from the driver. |
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# They can only be called within here, which is why Outline must |
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# be place before the contour as there is unlikely to be any changes |
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# made to the Outline's Actor3D. |
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|
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# ----- Outline ----- |
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|
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if(outline == True): |
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outline = Outline(data_collector._getOutput()) |
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DataSetMapper.__init__(self, outline._getOutput()) |
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|
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Actor3D.__init__(self, DataSetMapper._getDataSetMapper(self)) |
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# Default outline color is black. |
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Actor3D.setColor(self, Color.BLACK) |
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|
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# Default line width is 1. |
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Actor3D._setLineWidth(self, 1) |
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scene._addActor3D(viewport, Actor3D._getActor3D(self)) |
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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(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(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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Transform.__init__(self) |
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Plane.__init__(self, Transform._getTransform(self)) |
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|
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if(cell_to_point == True): # Converts cell data to point data. |
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c2p = CellDataToPointData(data_collector._getOutput()) |
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Cutter.__init__(self, c2p._getOutput(), Plane._getPlane(self)) |
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elif(cell_to_point == False): # No conversion happens. |
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Cutter.__init__(self, data_collector._getOutput(), |
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Plane._getPlane(self)) |
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|
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ContourModule.__init__(self, Cutter._getOutput(self)) |
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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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ContourModule.generateContours(self, 10, |
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data_collector._getScalarRange()[0], |
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data_collector._getScalarRange()[1]) |
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|
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DataSetMapper.__init__(self, ContourModule._getOutput(self), |
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lookup_table._getLookupTable()) |
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DataSetMapper._setScalarRange(self, data_collector._getScalarRange()) |
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|
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data_collector._paramForUpdatingMultipleSources(VizType.CONTOUR, |
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ColorMode.SCALAR, DataSetMapper._getDataSetMapper(self), |
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ContourModule._getContour(self)) |
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|
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Actor3D.__init__(self, DataSetMapper._getDataSetMapper(self)) |
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scene._addActor3D(viewport, Actor3D._getActor3D(self)) |
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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. |
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# This saves the user from specifying the viewport when there is only one. |
| 238 |
# If no lut is specified, the color scheme will be used. |
| 239 |
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 ContourOnPlaneClip. |
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|
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@attention: The source can either be point or cell data. If the |
| 246 |
source is cell data, a conversion to point data may or may not be |
| 247 |
required, in order for the object to be rendered correctly. |
| 248 |
If a conversion is needed, the 'cell_to_point' flag must be set to |
| 249 |
'True', otherwise 'False' (which is the default). |
| 250 |
|
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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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# NOTE: Actor3D is inherited and there are two instances declared here. |
| 267 |
# As a result, when methods from Actor3D is invoked from the driver, |
| 268 |
# only the methods associated with the latest instance (which in this |
| 269 |
# case is the Actor3D for the contour) can be executed. Actor3D |
| 270 |
# methods associated with Outline cannot be invoked from the driver. |
| 271 |
# They can only be called within here, which is why Outline must |
| 272 |
# be place before the contour as there is unlikely to be any changes |
| 273 |
# made to the Outline's Actor3D. |
| 274 |
|
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# ----- Outline ----- |
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|
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if(outline == True): |
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outline = Outline(data_collector._getOutput()) |
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DataSetMapper.__init__(self, outline._getOutput()) |
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|
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Actor3D.__init__(self, DataSetMapper._getDataSetMapper(self)) |
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# Default outline color is black. |
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Actor3D.setColor(self, Color.BLACK) |
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|
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# Default line width is 1. |
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Actor3D._setLineWidth(self, 1) |
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scene._addActor3D(viewport, Actor3D._getActor3D(self)) |
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|
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# ----- Contour on a clipped 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 |
| 293 |
# will take place. |
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if(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(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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Transform.__init__(self) |
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Plane.__init__(self, Transform._getTransform(self)) |
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|
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if(cell_to_point == True): # Converts cell data to point data. |
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c2p = CellDataToPointData(data_collector._getOutput()) |
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Clipper.__init__(self, c2p._getOutput(), Plane._getPlane(self)) |
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elif(cell_to_point == False): # No conversion happens. |
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Clipper.__init__(self, data_collector._getOutput(), |
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Plane._getPlane(self)) |
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|
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Clipper._setClipFunction(self) |
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|
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ContourModule.__init__(self, Clipper._getOutput(self)) |
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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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ContourModule.generateContours(self, 10, |
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data_collector._getScalarRange()[0], |
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data_collector._getScalarRange()[1]) |
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|
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DataSetMapper.__init__(self, ContourModule._getOutput(self), |
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lookup_table._getLookupTable()) |
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DataSetMapper._setScalarRange(self, data_collector._getScalarRange()) |
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|
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data_collector._paramForUpdatingMultipleSources(VizType.CONTOUR, |
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ColorMode.SCALAR, DataSetMapper._getDataSetMapper(self), |
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ContourModule._getContour(self)) |
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|
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Actor3D.__init__(self, DataSetMapper._getDataSetMapper(self)) |
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scene._addActor3D(viewport, Actor3D._getActor3D(self)) |
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