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# Copyright (C) 2004-2005 Paul Cochrane |
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# |
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# This program is free software; you can redistribute it and/or |
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# modify it under the terms of the GNU General Public License |
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# as published by the Free Software Foundation; either version 2 |
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# of the License, or (at your option) any later version. |
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# |
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# This program is distributed in the hope that it will be useful, |
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# but WITHOUT ANY WARRANTY; without even the implied warranty of |
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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# GNU General Public License for more details. |
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# |
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# You should have received a copy of the GNU General Public License |
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# along with this program; if not, write to the Free Software |
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# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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|
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# $Id: camera.py,v 1.13 2005/11/02 04:52:07 paultcochrane Exp $ |
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|
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## @file camera.py |
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|
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""" |
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Class and functions associated with a pyvisi Camera object |
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""" |
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|
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# generic imports |
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from pyvisi.common import debugMsg, overrideWarning |
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|
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from pyvisi.item import Item |
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__revision__ = '$Revision: 1.13 $' |
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class Camera(Item): |
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""" |
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Camera class |
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""" |
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def __init__(self, scene): |
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""" |
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Initialisation of the Camera object |
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|
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@param scene: The Scene object to add the Camera object to |
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@type scene: Scene object |
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""" |
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Item.__init__(self) |
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debugMsg("Called Camera.__init__()") |
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|
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# default x,y,z positions of Camera (specific to vtk) |
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self.xPos = 0.0 |
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self.yPos = 0.0 |
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self.zPos = 3.0 |
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|
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# default x,y,z positions of the Camers's focal point (specific to vtk) |
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self.xFocalPoint = 0.0 |
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self.yFocalPoint = 0.0 |
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self.zFocalPoint = 0.0 |
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|
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# default elevation and azimuth |
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self.elevation = 30 ####### we should try for matlab defaults |
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self.azimuth = 30 |
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# keep a reference to the renderer so we can send stuff to it |
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self.renderer = scene.renderer |
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|
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# some vtk initialisation commands |
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self.renderer.runString("# Camera.__init__()\n") |
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|
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# initialise the position of the Camera |
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self.setPosition(self.xPos, self.yPos, self.zPos) |
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self.setFocalPoint(self.xFocalPoint, self.yFocalPoint, self.zFocalPoint) |
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def setPosition(self, *pos): |
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""" |
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Set position of camera within scene |
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@param pos: Position to set camera in terms of x,y,z coordinates |
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@type pos: tuple |
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""" |
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debugMsg("Called Camera.setPosition()") |
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# I need to do some mucking around in here with coordinate systems |
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# and so on, but at present, we'll just use vtk's coord system |
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|
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self.xPos = pos[0] |
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self.yPos = pos[1] |
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self.zPos = pos[2] |
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# print a warning message if get to here |
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overrideWarning("Camera.setPosition") |
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# now to set the position |
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return |
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def getPosition(self): |
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""" |
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Get the position of Camera within Scene |
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Returns the position in a tuple of form (xPos, yPos, zPos) |
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""" |
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debugMsg("Called Camera.getPosition()") |
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return (self.xPos, self.yPos, self.zPos) |
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def setFocalPoint(self, *pos): |
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""" |
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Sets the focal point of the Camera with the Scene |
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@param pos: Position to set the focal point |
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@type pos: tuple |
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""" |
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debugMsg("Called Camera.setFocalPoint()") |
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# print a warning message if get to here |
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overrideWarning("Camera.setFocalPoint") |
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# I need to do some mucking around in here with coordinate systems |
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# and so on, but at present, we'll just use vtk's coord system |
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self.xFocalPoint = pos[0] |
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self.yFocalPoint = pos[1] |
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self.zFocalPoint = pos[2] |
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# now set the focal point position |
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self.renderer.runString("#Camera.setFocalPoint()\n") |
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return |
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def getFocalPoint(self): |
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""" |
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Get the position of the focal point of the Camera |
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Returns the position of the focal point in a tuple of form |
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(xPos, yPos, zPos) |
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""" |
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debugMsg("Called Camera.getFocalPoint()") |
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return (self.xFocalPoint, self.yFocalPoint, self.zFocalPoint) |
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def setElevation(self, elevation): |
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""" |
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Set the elevation angle (in degrees) of the Camera |
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@param elevation: The elevation angle (in degrees) of the Camera |
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@type elevation: float |
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""" |
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debugMsg("Called Camera.setElevation()") |
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self.elevation = elevation |
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# print a warning message if get to here |
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overrideWarning("Camera.setElevation") |
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return |
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def getElevation(self): |
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""" |
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Gets the elevation angle (in degrees) of the Camera |
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""" |
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debugMsg("Called Camera.getElevation()") |
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return self.elevation |
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def setAzimuth(self, azimuth): |
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""" |
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Set the azimuthal angle (in degrees) of the Camera |
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@param azimuth: The azimuthal angle (in degrees) of the Camera |
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@type azimuth: float |
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""" |
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debugMsg("Called Camera.setAzimuth()") |
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self.azimuth = azimuth |
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# print a warning message if get to here |
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overrideWarning("Camera.setAzimuth") |
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return |
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def getAzimuth(self): |
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""" |
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Get the azimuthal angle (in degrees) of the Camera |
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""" |
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debugMsg("Called Camera.getAzimuth()") |
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return self.azimuth |
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# vim: expandtab shiftwidth=4: |
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