| 1 |
""" |
| 2 |
@author: John NGUI |
| 3 |
""" |
| 4 |
|
| 5 |
import vtk |
| 6 |
from mapper import DataSetMapper |
| 7 |
from actor import Actor3D |
| 8 |
from lookuptable import LookupTable |
| 9 |
from outline import Outline |
| 10 |
from constant import Viewport, Color, Lut, ColorMode |
| 11 |
from contourmodule import ContourModule |
| 12 |
from average import CellDataToPointData |
| 13 |
|
| 14 |
# NOTE: DataSetMapper, Actor3D and ContourModule were inherited to allow |
| 15 |
# access to their public methods from the driver. |
| 16 |
class Contour(DataSetMapper, Actor3D, ContourModule): |
| 17 |
""" |
| 18 |
Class that shows a scalar field by contour surfaces. The contour surfaces |
| 19 |
can either be colored or grey-scaled, depending on the lookup table used. |
| 20 |
This class can also be used to generate iso surfaces. |
| 21 |
""" |
| 22 |
|
| 23 |
# The SOUTH_WEST default viewport is used when there is only one viewport. |
| 24 |
# This saves the user from specifying the viewport when there is only one. |
| 25 |
# If no lut is specified, the color scheme will be used. |
| 26 |
def __init__(self, scene, data_collector, viewport = Viewport.SOUTH_WEST, |
| 27 |
lut = Lut.COLOR, cell_to_point = False, outline = True): |
| 28 |
""" |
| 29 |
Initialise the Contour. |
| 30 |
|
| 31 |
@attention: The source can either be point or cell data. If the |
| 32 |
source is cell data, a conversion to point data may or may not be |
| 33 |
required, in order for the object to be rendered correctly. |
| 34 |
If a conversion is needed, the 'cell_to_point' flag must be set to |
| 35 |
'True', otherwise 'False' (which is the default). |
| 36 |
|
| 37 |
@type scene: L{Scene <scene.Scene>} object |
| 38 |
@param scene: Scene in which objects are to be rendered on |
| 39 |
@type data_collector: L{DataCollector <datacollector.DataCollector>} |
| 40 |
object |
| 41 |
@param data_collector: Deal with source of data for visualisation |
| 42 |
@type viewport: L{Viewport <constant.Viewport>} constant |
| 43 |
@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 |
| 46 |
@type cell_to_point: Boolean |
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@param cell_to_point: Converts cell data to point data (by averaging) |
| 48 |
@type outline: Boolean |
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@param outline: Places an outline around the domain surface |
| 50 |
""" |
| 51 |
|
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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 |
| 67 |
# driver. |
| 68 |
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 |
| 86 |
# will take place. |
| 87 |
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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""" |
| 115 |
|
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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 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._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 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 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. |
| 168 |
# If no lut is specified, the color scheme will be used. |
| 169 |
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 |
| 176 |
source is cell data, a conversion to point data may or may not be |
| 177 |
required, in order for the object to be rendered correctly. |
| 178 |
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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""" |
| 195 |
|
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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 ----- |
| 213 |
|
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# NOTE: Changes cannot be made to the Outline's properties from the |
| 215 |
# driver. |
| 216 |
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 ----- |
| 231 |
|
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# NOTE: Lookup table color mapping (color or grey scale) MUST be set |
| 233 |
# before DataSetMapper. If it is done after DataSetMapper, no effect |
| 234 |
# will take place. |
| 235 |
if(self.__lut == Lut.COLOR): # Colored lookup table. |
| 236 |
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()) |
| 252 |
self._setupDataSetMapper(self._getContourModuleOutput(), |
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lookup_table._getLookupTable()) |
| 254 |
|
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self._setupActor3D(self._getDataSetMapper()) |
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scene._addActor3D(self.__viewport, self._getActor3D()) |
| 257 |
|
| 258 |
def _isModified(self): |
| 259 |
""" |
| 260 |
Return whether the ContourOnPlaneCut or DataCollector has been modified. |
| 261 |
|
| 262 |
@rtype: Boolean |
| 263 |
@return: True or False |
| 264 |
""" |
| 265 |
|
| 266 |
return self.__modified or self.__data_collector._isModified() |
| 267 |
|
| 268 |
def _render(self, scene): |
| 269 |
""" |
| 270 |
Render the contour cut using a plane. |
| 271 |
|
| 272 |
@type scene: L{Scene <scene.Scene>} object |
| 273 |
@param scene: Scene in which objects are to be rendered on |
| 274 |
""" |
| 275 |
|
| 276 |
if (self._isModified() == True): |
| 277 |
if(self.__data_collector._isScalarSet() == True): |
| 278 |
self.__data_collector._setActiveScalar() |
| 279 |
|
| 280 |
# By default 10 contours are generated and the scalar range is based |
| 281 |
# on the scalar data range. |
| 282 |
contours = 10 |
| 283 |
lower_range = self.__data_collector._getScalarRange()[0] |
| 284 |
upper_range = self.__data_collector._getScalarRange()[1] |
| 285 |
|
| 286 |
if(self._isContoursSet() == True): |
| 287 |
contours = None |
| 288 |
if(self._isLowerRangeSet() == True): |
| 289 |
lower_range = None |
| 290 |
if(self._isUpperRangeSet() == True): |
| 291 |
upper_range = None |
| 292 |
|
| 293 |
self.generateContours(contours, lower_range, upper_range) |
| 294 |
self._generateContours() |
| 295 |
|
| 296 |
self._setScalarRange(self.__data_collector._getScalarRange()) |
| 297 |
self.__modified = False |
| 298 |
|
| 299 |
|
| 300 |
############################################################################### |
| 301 |
|
| 302 |
|
| 303 |
from clipper import Clipper |
| 304 |
|
| 305 |
# NOTE: DataSetMapper, Actor3D, ContourModule, Transform, Plane and Clipper |
| 306 |
# were inherited to allow access to their public methods from the driver. |
| 307 |
class ContourOnPlaneClip(DataSetMapper, Actor3D, ContourModule, Transform, |
| 308 |
Plane, Clipper): |
| 309 |
""" |
| 310 |
This class works in a similar way to L{MapOnPlaneClip <map.MapOnPlaneClip>} |
| 311 |
, except that it shows a scalar field by contour surfaces clipped using |
| 312 |
a plane. |
| 313 |
""" |
| 314 |
|
| 315 |
# The SOUTH_WEST default viewport is used when there is only one viewport. |
| 316 |
# This saves the user from specifying the viewport when there is only one. |
| 317 |
# If no lut is specified, the color scheme will be used. |
| 318 |
def __init__(self, scene, data_collector, viewport = Viewport.SOUTH_WEST, |
| 319 |
lut = Lut.COLOR, cell_to_point = False, outline = True): |
| 320 |
|
| 321 |
""" |
| 322 |
Initialise the ContourOnPlaneClip. |
| 323 |
|
| 324 |
@attention: The source can either be point or cell data. If the |
| 325 |
source is cell data, a conversion to point data may or may not be |
| 326 |
required, in order for the object to be rendered correctly. |
| 327 |
If a conversion is needed, the 'cell_to_point' flag must be set to |
| 328 |
'True', otherwise 'False' (which is the default). |
| 329 |
|
| 330 |
@type scene: L{Scene <scene.Scene>} object |
| 331 |
@param scene: Scene in which objects are to be rendered on |
| 332 |
@type data_collector: L{DataCollector <datacollector.DataCollector>} |
| 333 |
object |
| 334 |
@param data_collector: Deal with source of data for visualisation |
| 335 |
@type viewport: L{Viewport <constant.Viewport>} constant |
| 336 |
@param viewport: Viewport in which objects are to be rendered on |
| 337 |
@type lut : L{Lut <constant.Lut>} constant |
| 338 |
@param lut: Lookup table color scheme |
| 339 |
@type cell_to_point: Boolean |
| 340 |
@param cell_to_point: Converts cell data to point data (by averaging) |
| 341 |
@type outline: Boolean |
| 342 |
@param outline: Places an outline around the domain surface |
| 343 |
""" |
| 344 |
|
| 345 |
self.__data_collector = data_collector |
| 346 |
self.__viewport = viewport |
| 347 |
self.__lut = lut |
| 348 |
self.__cell_to_point = cell_to_point |
| 349 |
self.__outline = outline |
| 350 |
|
| 351 |
# Keeps track whether ContourOnPlaneClip has been modified. |
| 352 |
self.__modified = True |
| 353 |
Transform.__init__(self) |
| 354 |
Plane.__init__(self) |
| 355 |
Clipper.__init__(self) |
| 356 |
ContourModule.__init__(self) |
| 357 |
DataSetMapper.__init__(self) |
| 358 |
Actor3D.__init__(self) |
| 359 |
scene._addVisualizationModules(self) |
| 360 |
|
| 361 |
# ----- Outline ----- |
| 362 |
|
| 363 |
# NOTE: Changes cannot be made to the Outline's properties from the |
| 364 |
# driver. |
| 365 |
if(self.__outline == True): |
| 366 |
outline = Outline(self.__data_collector._getDataCollectorOutput()) |
| 367 |
mapper = DataSetMapper() |
| 368 |
mapper._setupDataSetMapper(outline._getOutlineOutput()) |
| 369 |
|
| 370 |
actor3D = Actor3D() |
| 371 |
actor3D._setupActor3D(mapper._getDataSetMapper()) |
| 372 |
# Default outline color is black. |
| 373 |
actor3D.setColor(Color.BLACK) |
| 374 |
|
| 375 |
# Default line width is 1. |
| 376 |
actor3D._setLineWidth(1) |
| 377 |
scene._addActor3D(self.__viewport, actor3D._getActor3D()) |
| 378 |
|
| 379 |
# ----- Contour on a clipped plane ----- |
| 380 |
|
| 381 |
# NOTE: Lookup table color mapping (color or grey scale) MUST be set |
| 382 |
# before DataSetMapper. If it is done after DataSetMapper, no effect |
| 383 |
# will take place. |
| 384 |
if(self.__lut == Lut.COLOR): # Colored lookup table. |
| 385 |
lookup_table = LookupTable() |
| 386 |
lookup_table._setTableValue() |
| 387 |
elif(self.__lut == Lut.GREY_SCALE): # Grey scaled lookup table. |
| 388 |
lookup_table = LookupTable() |
| 389 |
lookup_table._setLookupTableToGreyScale() |
| 390 |
|
| 391 |
self._setupPlane(self._getTransform()) |
| 392 |
|
| 393 |
if(self.__cell_to_point == True): # Converts cell data to point data. |
| 394 |
c2p = CellDataToPointData( |
| 395 |
self.__data_collector._getDataCollectorOutput()) |
| 396 |
self._setupClipper(c2p._getCellToPointOutput(), self._getPlane()) |
| 397 |
elif(self.__cell_to_point == False): # No conversion happens. |
| 398 |
self._setupClipper(self.__data_collector._getDataCollectorOutput(), |
| 399 |
self._getPlane()) |
| 400 |
|
| 401 |
self._setClipFunction() |
| 402 |
self._setupContourModule(self._getClipperOutput()) |
| 403 |
|
| 404 |
self._setupDataSetMapper(self._getContourModuleOutput(), |
| 405 |
lookup_table._getLookupTable()) |
| 406 |
|
| 407 |
self._setupActor3D(self._getDataSetMapper()) |
| 408 |
scene._addActor3D(self.__viewport, self._getActor3D()) |
| 409 |
|
| 410 |
def _isModified(self): |
| 411 |
""" |
| 412 |
Return whether the ContourOnPlaneClip or DataCollector has been |
| 413 |
modified. |
| 414 |
|
| 415 |
@rtype: Boolean |
| 416 |
@return: True or False |
| 417 |
""" |
| 418 |
|
| 419 |
return self.__modified or self.__data_collector._isModified() |
| 420 |
|
| 421 |
def _render(self, scene): |
| 422 |
""" |
| 423 |
Render the contour clip using a plane. |
| 424 |
|
| 425 |
@type scene: L{Scene <scene.Scene>} object |
| 426 |
@param scene: Scene in which objects are to be rendered on |
| 427 |
""" |
| 428 |
|
| 429 |
if (self._isModified() == True): |
| 430 |
if(self.__data_collector._isScalarSet() == True): |
| 431 |
self.__data_collector._setActiveScalar() |
| 432 |
|
| 433 |
# By default 10 contours are generated and the scalar range is based |
| 434 |
# on the scalar data range. |
| 435 |
contours = 10 |
| 436 |
lower_range = self.__data_collector._getScalarRange()[0] |
| 437 |
upper_range = self.__data_collector._getScalarRange()[1] |
| 438 |
|
| 439 |
if(self._isContoursSet() == True): |
| 440 |
contours = None |
| 441 |
if(self._isLowerRangeSet() == True): |
| 442 |
lower_range = None |
| 443 |
if(self._isUpperRangeSet() == True): |
| 444 |
upper_range = None |
| 445 |
|
| 446 |
self.generateContours(contours, lower_range, upper_range) |
| 447 |
self._generateContours() |
| 448 |
|
| 449 |
self._setScalarRange(self.__data_collector._getScalarRange()) |
| 450 |
self.__modified = False |
| 451 |
|
| 452 |
|
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