Due to the current gap in continued funding from the U.S. National Science Foundation (NSF), the NSF Unidata Program Center has temporarily paused most operations. See NSF Unidata Pause in Most Operations for details.

3D Trajectories (beginner)

Good day all!

Just started trying VisAD out a few days ago, and I'm a little stuck..
I can't figure out (from the tutorial, mailing list archives or other doc) how to plot a 3D-trajectory (using the VisAD-Java-libraries) 

time -> (x, y, z)
Ideally I would want to animate the trajectory, or show the time by means of colors. (Also, I want to add a widget, to let the user control the time variable.) I have tried something like the code below, but that gives me the trajectory as (nicely colored) *points*, but I would want a *continuous* function.. I realize that there is something fundamental I've been missing here.. Could anyone point me in the right direction? I found an intresting mailing list post on http://my.unidata.ucar.edu/content/staff/russ/visad/msg01230.html , but I couldn't figure out how to implement that.. 

Best regards
Hugo Heden


   // ....
   RealTupleType rangeTupleType = new RealTupleType( xType, yType, zType );
   RealType timeType = RealType.getRealType( timeString );
   ScalarMap timeMap = new ScalarMap( timeType, Display.RGB );
   display.addMap( timeMap );
FunctionType t_to_xyz_funcType = new FunctionType( timeType, rangeTupleType ); float[][] timeVals = new float[1][ timeValues.length ]; 
   timeVals[0] = timeValues;
   Set timeSet = new Gridded1DSet( timeType, timeVals, timeValues.length );
   FlatField vals_ff_1 = new FlatField( t_to_xyz_funcType, timeSet );
   // ....
  • 2005 messages navigation, sorted by:
    1. Thread
    2. Subject
    3. Author
    4. Date
    5. ↑ Table Of Contents
  • Search the visad archives: