| 1 |
""" |
| 2 |
@author: John NGUI |
| 3 |
""" |
| 4 |
|
| 5 |
import vtk |
| 6 |
from mapper import DataSetMapper |
| 7 |
from lookuptable import LookupTable |
| 8 |
from actor import Actor3D |
| 9 |
from constant import Viewport, Color, Lut, ColorMode |
| 10 |
from sphere import Sphere |
| 11 |
from normals import Normals |
| 12 |
from glyph import TensorGlyph |
| 13 |
from outline import Outline |
| 14 |
from point import MaskPoints |
| 15 |
from average import CellDataToPointData |
| 16 |
|
| 17 |
# NOTE: DataSetMapper, Actor3D, Sphere, Normals, TensorGlyph |
| 18 |
# and MaskPoints were inherited to allow access to their |
| 19 |
# public methods from the driver. |
| 20 |
class Ellipsoid(DataSetMapper, Actor3D, Sphere, Normals, TensorGlyph, |
| 21 |
MaskPoints): |
| 22 |
""" |
| 23 |
Class that shows a tensor field using ellipsoids. The ellipsoids can either |
| 24 |
be colored or grey-scaled, depending on the lookup table used. |
| 25 |
""" |
| 26 |
|
| 27 |
# The SOUTH_WEST default viewport is used when there is only one viewport. |
| 28 |
# This saves the user from specifying the viewport when there is only one. |
| 29 |
# If no lut is specified, the color scheme will be used. |
| 30 |
def __init__(self, scene, data_collector, viewport = Viewport.SOUTH_WEST, |
| 31 |
lut = Lut.COLOR, cell_to_point = False, outline = True): |
| 32 |
""" |
| 33 |
Initialise the Ellipsoid. |
| 34 |
|
| 35 |
@attention: The source can either be point or cell data. If the |
| 36 |
source is cell data, a conversion to point data may or may not be |
| 37 |
required, in order for the object to be rendered correctly. |
| 38 |
If a conversion is needed, the 'cell_to_point' flag must be set to |
| 39 |
'True', otherwise 'False' (which is the default). |
| 40 |
|
| 41 |
@type scene: L{Scene <scene.Scene>} object |
| 42 |
@param scene: Scene in which objects are to be rendered on |
| 43 |
@type data_collector: L{DataCollector <datacollector.DataCollector>} |
| 44 |
object |
| 45 |
@param data_collector: Deal with source of data for vizualisation |
| 46 |
@type viewport: L{Viewport <constant.Viewport>} constant |
| 47 |
@param viewport: Viewport in which objects are to be rendered on |
| 48 |
@type lut : L{Lut <constant.Lut>} constant |
| 49 |
@param lut: Lookup table color scheme |
| 50 |
@type cell_to_point: Boolean |
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@param cell_to_point: Converts cell data to point data (by averaging) |
| 52 |
@type outline: Boolean |
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@param outline: Places an outline around the domain surface |
| 54 |
""" |
| 55 |
|
| 56 |
self.__data_collector = data_collector |
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self.__viewport = viewport |
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self.__lut = lut |
| 59 |
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 Ellipsoid has been modified. |
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self.__modified = True |
| 64 |
MaskPoints.__init__(self) |
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Sphere.__init__(self) |
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TensorGlyph.__init__(self) |
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Normals.__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 |
| 75 |
# driver. |
| 76 |
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()) |
| 89 |
|
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# ----- Ellipsoid ----- |
| 91 |
|
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# NOTE: Lookup table color mapping (color or grey scale) MUST be set |
| 93 |
# before DataSetMapper. If it is done after DataSetMapper, no effect |
| 94 |
# will take place. |
| 95 |
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._setupMaskPoints(c2p._getCellToPointOutput()) |
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elif(self.__cell_to_point == False): # No conversion happens. |
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self._setupMaskPoints( |
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self.__data_collector._getDataCollectorOutput()) |
| 109 |
|
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self._setupTensorGlyph(self._getMaskPointsOutput(), |
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self._getSphereOutput()) |
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self._setupNormals(self._getTensorGlyphOutput()) |
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|
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self._setupDataSetMapper(self._getNormalsOutput(), |
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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 Ellipsoid or DataCollector has been modified. |
| 123 |
|
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@rtype: Boolean |
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@return: True or False |
| 126 |
""" |
| 127 |
|
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return self.__modified or self.__data_collector._isModified() |
| 129 |
|
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def _render(self, scene): |
| 131 |
""" |
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Render the ellipsoids. |
| 133 |
|
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@type scene: L{Scene <scene.Scene>} object |
| 135 |
@param scene: Scene in which objects are to be rendered on |
| 136 |
""" |
| 137 |
|
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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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if(self.__data_collector._isTensorSet() == True): |
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self.__data_collector._setActiveTensor() |
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|
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# self._isScalarRangeSet checks whether the scalar range has been |
| 145 |
# specified by the user. If it has, then the scalar range |
| 146 |
# read from the source will be ignored. |
| 147 |
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, Sphere, Normals, TensorGlyph, Transform, Plane, |
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# Cutter and MaskPoints were inherited to allow access to |
| 161 |
# their public methods from the driver. |
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class EllipsoidOnPlaneCut(DataSetMapper, Actor3D, Sphere, Normals, |
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TensorGlyph, Transform, Plane, Cutter, MaskPoints): |
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""" |
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This class works in a similar way to L{MapOnPlaneCut <map.MapOnPlaneCut>}, |
| 166 |
except that it shows a tensor field using ellipsoids 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. |
| 170 |
# This saves the user from specifying the viewport when there is only one. |
| 171 |
# If no lut is specified, the color scheme will be used. |
| 172 |
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 EllipsoidOnPlaneCut. |
| 176 |
|
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@attention: The source can either be point or cell data. If the |
| 178 |
source is cell data, a conversion to point data may or may not be |
| 179 |
required, in order for the object to be rendered correctly. |
| 180 |
If a conversion is needed, the 'cell_to_point' flag must be set to |
| 181 |
'True', otherwise 'False' (which is the default). |
| 182 |
|
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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 |
| 185 |
@type data_collector: L{DataCollector <datacollector.DataCollector>} |
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object |
| 187 |
@param data_collector: Deal with source of data for vizualisation |
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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 |
| 192 |
@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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""" |
| 197 |
|
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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 EllipsoidOnPlaneCut 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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MaskPoints.__init__(self) |
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Sphere.__init__(self) |
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TensorGlyph.__init__(self) |
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Normals.__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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|
| 217 |
# ----- Outline ----- |
| 218 |
|
| 219 |
# NOTE: Changes cannot be made to the Outline's properties from the |
| 220 |
# driver. |
| 221 |
if(self.__outline == True): |
| 222 |
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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# ----- Ellipsoid on a cut plane ----- |
| 236 |
|
| 237 |
# NOTE: Lookup table color mapping (color or grey scale) MUST be set |
| 238 |
# before DataSetMapper. If it is done after DataSetMapper, no effect |
| 239 |
# will take place. |
| 240 |
if(self.__lut == Lut.COLOR): # Colored lookup table. |
| 241 |
lookup_table = LookupTable() |
| 242 |
lookup_table._setTableValue() |
| 243 |
elif(self.__lut == Lut.GREY_SCALE): # Grey scaled lookup table. |
| 244 |
lookup_table = LookupTable() |
| 245 |
lookup_table._setLookupTableToGreyScale() |
| 246 |
|
| 247 |
self._setupPlane(self._getTransform()) |
| 248 |
|
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if(self.__cell_to_point == True): # Converts cell data to point data. |
| 250 |
c2p = CellDataToPointData( |
| 251 |
self.__data_collector._getDataCollectorOutput()) |
| 252 |
self._setupCutter(c2p._getCellToPointOutput(), self._getPlane()) |
| 253 |
elif(self.__cell_to_point == False): # No conversion happens. |
| 254 |
self._setupCutter(self.__data_collector._getDataCollectorOutput(), |
| 255 |
self._getPlane()) |
| 256 |
|
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self._setupMaskPoints(self._getCutterOutput()) |
| 258 |
|
| 259 |
self._setupTensorGlyph(self._getMaskPointsOutput(), |
| 260 |
self._getSphereOutput()) |
| 261 |
self._setupNormals(self._getTensorGlyphOutput()) |
| 262 |
|
| 263 |
self._setupDataSetMapper(self._getNormalsOutput(), |
| 264 |
lookup_table._getLookupTable()) |
| 265 |
|
| 266 |
self._setupActor3D(self._getDataSetMapper()) |
| 267 |
scene._addActor3D(self.__viewport, self._getActor3D()) |
| 268 |
|
| 269 |
def _isModified(self): |
| 270 |
""" |
| 271 |
Return whether the EllipsoidOnPlaneCut or DataCollector has been |
| 272 |
modified. |
| 273 |
|
| 274 |
@rtype: Boolean |
| 275 |
@return: True or False |
| 276 |
""" |
| 277 |
|
| 278 |
return self.__modified or self.__data_collector._isModified() |
| 279 |
|
| 280 |
def _render(self, scene): |
| 281 |
""" |
| 282 |
Render the ellipsoids cut using a plane. |
| 283 |
|
| 284 |
@type scene: L{Scene <scene.Scene>} object |
| 285 |
@param scene: Scene in which objects are to be rendered on |
| 286 |
""" |
| 287 |
|
| 288 |
if (self._isModified() == True): |
| 289 |
if(self.__data_collector._isScalarSet() == True): |
| 290 |
self.__data_collector._setActiveScalar() |
| 291 |
if(self.__data_collector._isTensorSet() == True): |
| 292 |
self.__data_collector._setActiveTensor() |
| 293 |
|
| 294 |
# self._isScalarRangeSet checks whether the scalar range has been |
| 295 |
# specified by the user. If it has, then the scalar range |
| 296 |
# read from the source will be ignored. |
| 297 |
if(not(self._isScalarRangeSet())): |
| 298 |
self._setScalarRange(self.__data_collector._getScalarRange()) |
| 299 |
self.__modified = False |
| 300 |
|
| 301 |
|
| 302 |
############################################################################### |
| 303 |
|
| 304 |
|
| 305 |
from clipper import Clipper |
| 306 |
|
| 307 |
# NOTE: DataSetMapper, Actor3D, Sphere, Normals, TensorGlyph, Transform, Plane, |
| 308 |
# Clipper and MaskPoints were inherited to allow access to |
| 309 |
# their public methods from the driver. |
| 310 |
class EllipsoidOnPlaneClip(DataSetMapper, Actor3D, Sphere, Normals, |
| 311 |
TensorGlyph, Transform, Plane, Clipper, MaskPoints): |
| 312 |
""" |
| 313 |
This class works in a similar way to L{MapOnPlaneClip <map.MapOnPlaneClip>}, |
| 314 |
except that it shows a tensor field using ellipsoids clipped using a plane. |
| 315 |
""" |
| 316 |
|
| 317 |
# The SOUTH_WEST default viewport is used when there is only one viewport. |
| 318 |
# This saves the user from specifying the viewport when there is only one. |
| 319 |
# If no lut is specified, the color scheme will be used. |
| 320 |
def __init__(self, scene, data_collector, viewport = Viewport.SOUTH_WEST, |
| 321 |
lut = Lut.COLOR, cell_to_point = False, outline = True): |
| 322 |
""" |
| 323 |
Initialise the EllipsoidOnPlaneClip. |
| 324 |
|
| 325 |
@attention: The source can either be point or cell data. If the |
| 326 |
source is cell data, a conversion to point data may or may not be |
| 327 |
required, in order for the object to be rendered correctly. |
| 328 |
If a conversion is needed, the 'cell_to_point' flag must be set to |
| 329 |
'True', otherwise 'False' (which is the default). |
| 330 |
|
| 331 |
@type scene: L{Scene <scene.Scene>} object |
| 332 |
@param scene: Scene in which objects are to be rendered on |
| 333 |
@type data_collector: L{DataCollector <datacollector.DataCollector>} |
| 334 |
object |
| 335 |
@param data_collector: Deal with source of data for visualisation |
| 336 |
@type viewport: L{Viewport <constant.Viewport>} constant |
| 337 |
@param viewport: Viewport in which object are to be rendered on |
| 338 |
@type lut : L{Lut <constant.Lut>} constant |
| 339 |
@param lut: Lookup table color scheme |
| 340 |
@type cell_to_point: Boolean |
| 341 |
@param cell_to_point: Converts cell data to point data (by averaging) |
| 342 |
@type outline: Boolean |
| 343 |
@param outline: Places an outline around the domain surface |
| 344 |
""" |
| 345 |
|
| 346 |
self.__data_collector = data_collector |
| 347 |
self.__viewport = viewport |
| 348 |
self.__lut = lut |
| 349 |
self.__cell_to_point = cell_to_point |
| 350 |
self.__outline = outline |
| 351 |
|
| 352 |
# Keeps track whether EllipsoidOnPlaneClip has been modified. |
| 353 |
self.__modified = True |
| 354 |
Transform.__init__(self) |
| 355 |
Plane.__init__(self) |
| 356 |
Clipper.__init__(self) |
| 357 |
MaskPoints.__init__(self) |
| 358 |
Sphere.__init__(self) |
| 359 |
TensorGlyph.__init__(self) |
| 360 |
Normals.__init__(self) |
| 361 |
DataSetMapper.__init__(self) |
| 362 |
Actor3D.__init__(self) |
| 363 |
scene._addVisualizationModules(self) |
| 364 |
|
| 365 |
# ----- Outline ----- |
| 366 |
|
| 367 |
# NOTE: Changes cannot be made to the Outline's properties from the |
| 368 |
# driver. |
| 369 |
if(self.__outline == True): |
| 370 |
outline = Outline(self.__data_collector._getDataCollectorOutput()) |
| 371 |
mapper = DataSetMapper() |
| 372 |
mapper._setupDataSetMapper(outline._getOutlineOutput()) |
| 373 |
|
| 374 |
actor3D = Actor3D() |
| 375 |
actor3D._setupActor3D(mapper._getDataSetMapper()) |
| 376 |
# Default outline color is black. |
| 377 |
actor3D.setColor(Color.BLACK) |
| 378 |
|
| 379 |
# Default line width is 1. |
| 380 |
actor3D._setLineWidth(1) |
| 381 |
scene._addActor3D(self.__viewport, actor3D._getActor3D()) |
| 382 |
|
| 383 |
# ----- Ellipsoid on a clipped plane ----- |
| 384 |
|
| 385 |
# NOTE: Lookup table color mapping (color or grey scale) MUST be set |
| 386 |
# before DataSetMapper. If it is done after DataSetMapper, no effect |
| 387 |
# will take place. |
| 388 |
if(self.__lut == Lut.COLOR): # Colored lookup table. |
| 389 |
lookup_table = LookupTable() |
| 390 |
lookup_table._setTableValue() |
| 391 |
elif(self.__lut == Lut.GREY_SCALE): # Grey scaled lookup table. |
| 392 |
lookup_table = LookupTable() |
| 393 |
lookup_table._setLookupTableToGreyScale() |
| 394 |
|
| 395 |
self._setupPlane(self._getTransform()) |
| 396 |
|
| 397 |
if(self.__cell_to_point == True): # Converts cell data to point data. |
| 398 |
c2p = CellDataToPointData( |
| 399 |
self.__data_collector._getDataCollectorOutput()) |
| 400 |
self._setupMaskPoints(c2p._getCellToPointOutput()) |
| 401 |
elif(self.__cell_to_point == False): # No conversion happens. |
| 402 |
self._setupMaskPoints( |
| 403 |
self.__data_collector._getDataCollectorOutput()) |
| 404 |
|
| 405 |
# NOTE: TensorGlyph must come before Clipper. Otherwise clipping |
| 406 |
# may not work correctly. |
| 407 |
self._setupTensorGlyph(self._getMaskPointsOutput(), |
| 408 |
self._getSphereOutput()) |
| 409 |
self._setupNormals(self._getTensorGlyphOutput()) |
| 410 |
|
| 411 |
# NOTE: Clipper must come after TensorGlyph. Otherwise clipping |
| 412 |
# may not work correctly. |
| 413 |
self._setupClipper(self._getNormalsOutput(), |
| 414 |
self._getPlane()) |
| 415 |
self._setClipFunction() |
| 416 |
|
| 417 |
self._setupDataSetMapper(self._getClipperOutput(), |
| 418 |
lookup_table._getLookupTable()) |
| 419 |
|
| 420 |
self._setupActor3D(self._getDataSetMapper()) |
| 421 |
scene._addActor3D(self.__viewport, self._getActor3D()) |
| 422 |
|
| 423 |
def _isModified(self): |
| 424 |
""" |
| 425 |
Return whether the EllipsoidOnPlaneClip or DataCollector has been |
| 426 |
modified. |
| 427 |
|
| 428 |
@rtype: Boolean |
| 429 |
@return: True or False |
| 430 |
""" |
| 431 |
|
| 432 |
return self.__modified or self.__data_collector._isModified() |
| 433 |
|
| 434 |
def _render(self, scene): |
| 435 |
""" |
| 436 |
Render the ellipsoids clip using a plane. |
| 437 |
|
| 438 |
@type scene: L{Scene <scene.Scene>} object |
| 439 |
@param scene: Scene in which objects are to be rendered on |
| 440 |
""" |
| 441 |
|
| 442 |
if (self._isModified() == True): |
| 443 |
if(self.__data_collector._isScalarSet() == True): |
| 444 |
self.__data_collector._setActiveScalar() |
| 445 |
if(self.__data_collector._isTensorSet() == True): |
| 446 |
self.__data_collector._setActiveTensor() |
| 447 |
|
| 448 |
# self._isScalarRangeSet checks whether the scalar range has been |
| 449 |
# specified by the user. If it has, then the scalar range |
| 450 |
# read from the source will be ignored. |
| 451 |
if(not(self._isScalarRangeSet())): |
| 452 |
self._setScalarRange(self.__data_collector._getScalarRange()) |
| 453 |
self.__modified = False |
| 454 |
|
| 455 |
|
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