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""" |
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@var __author__: name of author |
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@var __copyright__: copyrights |
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@var __license__: licence agreement |
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@var __url__: url entry point on documentation |
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@var __version__: version |
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@var __date__: date of the version |
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""" |
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|
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__author__="John Ngui, john.ngui@uq.edu.au" |
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__copyright__=""" Copyright (c) 2006 by ACcESS MNRF |
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http://www.access.edu.au |
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Primary Business: Queensland, Australia""" |
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__license__="""Licensed under the Open Software License version 3.0 |
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http://www.opensource.org/licenses/osl-3.0.php""" |
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__url__="http://www.iservo.edu.au/esys" |
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__version__="$Revision$" |
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__date__="$Date$" |
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|
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|
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import vtk |
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from mapper import ImageMapper |
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from imagereslice import ImageReslice |
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from actor import Actor2D |
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from constant import Viewport |
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|
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# NOTE: ImageMapper, ImageReslice and Actor2D were inherited to allow access |
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# to their public methods from the driver. |
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class Logo(ImageMapper, ImageReslice, Actor2D): |
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""" |
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Class that displays a static image, in particular a logo |
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(i.e. company symbol) and has NO interaction capability. The position and |
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size of the logo can be specified. |
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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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def __init__(self, scene, image_reader, viewport = Viewport.SOUTH_WEST): |
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""" |
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@type scene: L{Scene <scene.Scene>} object |
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@param scene: Scene in which the logo is to be displayed |
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@type image_reader: L{ImageReader <imagereader.ImageReader>} |
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object |
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@param image_reader: 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 the logo is to be displayed |
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""" |
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|
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self.__image_reader = image_reader |
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self.__viewport = viewport |
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|
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self.__modified = True # Keeps track whether Logo has been modified. |
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ImageReslice.__init__(self) |
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ImageMapper.__init__(self) |
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Actor2D.__init__(self) |
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scene._addVisualizationModules(self) |
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|
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# ----- Logo ----- |
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|
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self._setupImageReslice(self.__image_reader._getImageReaderOutput()) |
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self._setupImageMapper(self._getImageResliceOutput()) |
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|
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self._setupActor2D(self._getImageMapper()) |
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scene._addActor2D(self.__viewport, self._getActor2D()) |
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|
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def _isModified(self): |
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""" |
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Return whether the Logo 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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""" |
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|
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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 logo. |
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|
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@type scene: L{Scene <scene.Scene>} object |
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@param scene: Scene in which the logo is to be displayed |
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""" |
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|
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if (self._isModified() == True): |
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self.__modified = False |
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|
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|
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