Path: SC/GUIPlugIn
% Draw spacecraft in orbit about a planet. Includes a separate controls window.
The controls window allows for zooming and orbiting the camera, adjusting
the ambient light, and changing renderer or camera target. Only
external surfaces, as identified by the 'inside' component parameter,
will be drawn. ]
There are three calls you need to make when using this plugin.
(1) Initialize:
tag = DrawSCPlugIn( 'initialize', g, hFig, position, planet, jD )
g is the spacecraft CAD data structure. It must have the following
fields:
.rECI, ECI orbit position of the spacecraft (km).
.qLVLH, needed for camera pointing
The inertial quaternion (body to ECI) should be stored with the first body.
The spacecraft model must be in meters.
hFig is the handle to the figure window
position is an array [left bottom width height] which gives the position
of the plugin in the window
planet is the name of any planet in the toolbox, the default is 'earth'
jD is the Julian date; passed to SunV1 for solar lighting
If hFig is not entered it will create a new window. You need to save tag
to call the function in subsequent calls.
(2) Update with new state or attitude information
When passing new information to the plugin use
DrawSCPlugIn( 'update spacecraft', tag, g, jD )
(3) Close the windows
To close the display type
DrawSCPlugIn( 'quit', tag )
The plugin will scale the spacecraft model up to 5% of the ECI position
vector in order for the spacecraft to be rendered by MATLAB.
--------------------------------------------------------------------------
Form:
DrawSCPlugIn( action, modifier, hFig, position, planet, jD )
--------------------------------------------------------------------------
------
Inputs
------
action (1,:) Action
modifier (1,:) Modifier to the action
hFig (1,1) Handle to the figure or if 'update' is jD
position (1,4) [left bottom width height]
planet (1,:) Planet name (corresponding to a mat-file)
jD (1,1) Julian Date
-------
Outputs
-------
tag (1,:) The tag that identifies the display
--------------------------------------------------------------------------
AerospaceUtils: CAD/BHinge SC: BasicOrbit/El2RV SC: Ephem/ECIToPlanet SC: Ephem/SunV1 SC: SCMat/EarthMR SC: SCModels/SCForImaging SC: Visualization/PlotPlanet Common: General/CloseFigure Common: General/GetListString Common: Quaternion/QTForm Common: Quaternion/QZero Common: Time/Date2JD Math: Linear/Cross Math: Linear/DupVect Math: Linear/Mag Math: Linear/Unit builder: Templates/HelpSystem
Back to the SC Module page