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""" |
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@author: John Ngui |
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@author: Lutz Gross |
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""" |
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|
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import vtk |
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from common import Common |
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from constants import * |
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from style import Style |
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|
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class DataCollector(Common): |
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""" |
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Class that deals with data for the visualization. |
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""" |
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|
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def __init__(self, scene, outline = True, cube_axes = True): |
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""" |
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Initialize all the instance variables. |
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|
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@type scene: L{Scene <scene.Scene>} object |
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@param scene: Scene in which components are to be added to |
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@type outline: Boolean (I{True or False}) |
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@param outline: Determines the outline for the rendered object |
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""" |
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|
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Common.__init__(self, scene) |
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self.outline = outline |
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self.cube_axes = cube_axes |
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self.vtk_xml_reader = vtk.vtkXMLUnstructuredGridReader() |
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|
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def setFileName(self, file_name): |
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""" |
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Set up the file reader and set the file name. |
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|
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@type file_name: String |
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@param file_name: Name of the file to be read. |
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""" |
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|
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self.vtk_xml_reader.SetFileName(file_name) |
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|
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if(self.outline == True): |
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self.setOutline() |
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|
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if(self.cube_axes == True): |
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self.setCubeAxes() |
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|
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def setOutline(self): |
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""" |
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Set the outline for the rendered object. |
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""" |
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|
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self.vtk_outline = vtk.vtkOutlineFilter() |
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self.vtk_outline.SetInput(self.vtk_xml_reader.GetOutput()) |
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|
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Common.setMapperInput(self, self.vtk_outline.GetOutput()) |
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Common.setActorInput(self) |
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Common.addActor(self) |
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# Default outline is black color. |
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Common.setActorColor(self, BLACK) |
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|
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def setCubeAxes(self): |
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vtk_cube_axes = vtk.vtkCubeAxesActor2D() |
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vtk_cube_axes.SetInput(self.getReader().GetOutput()) |
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vtk_cube_axes.SetCamera(self.scene.getRenderer().GetActiveCamera()) |
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vtk_cube_axes.SetLabelFormat("%6.4g") |
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vtk_cube_axes.SetFlyModeToOuterEdges() |
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vtk_cube_axes.SetFontFactor(0.9) |
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|
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style = Style() |
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style.setColor(BLACK) |
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style.setShadow() |
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|
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vtk_cube_axes.SetAxisTitleTextProperty(style.getStyle()) |
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vtk_cube_axes.SetAxisLabelTextProperty(style.getStyle()) |
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|
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self.scene.getRenderer().AddActor(vtk_cube_axes) |
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|
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def getReader(self): |
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""" |
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Return the file reader. |
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|
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@rtype: vtkXMLUnstructuredGridReader |
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@return: VTK XML unstructured grid reader |
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""" |
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|
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return self.vtk_xml_reader |
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