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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 lookuptable import LookupTable |
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from actor import Actor3D |
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from constant import Viewport, Color, Lut, WarpMode |
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from warp import Warp |
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from outline import Outline |
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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, Warp, 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 Carpet(DataSetMapper, Actor3D, Warp, Transform, Plane, Cutter): |
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""" |
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Class that shows a scalar field on a plane deformated along the normal. |
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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 warp_mode is specified, the data will be deformated using scalar |
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# data. If no scalar field is specified, the first encountered in the |
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# file will be loaded automatically. If no lut is specified, the |
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# color scheme will be used. |
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def __init__(self, scene, data_collector, scalar = None, vector = None, |
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warp_mode = WarpMode.SCALAR, viewport = Viewport.SOUTH_WEST, |
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lut = Lut.COLOR, outline = True): |
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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 scalar: String |
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@param scalar: Scalar field to load from the source file |
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@param warp_mode: L{WarpMode <constant.WarpMode>} constant |
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@type warp_mode: Mode in which to deform the scalar data |
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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 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 carpet) 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 carpet 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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# ----- Carpet ----- |
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|
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#if(scalar != None): |
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# data_collector._setActiveScalar(scalar) |
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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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Cutter.__init__(self, data_collector._getOutput(), |
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Plane._getPlane(self)) |
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Warp.__init__(self, Cutter._getOutput(self), warp_mode) |
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|
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DataSetMapper.__init__(self, Warp._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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Actor3D.__init__(self, DataSetMapper._getDataSetMapper(self)) |
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scene._addActor3D(viewport, Actor3D._getActor3D(self)) |
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