Jong Bor Lee wrote:
I have been contacted by a professor who is interested in viewing the trajectory of particles under wind currents. The vector field that models wind is available and a student is already working in the calculation of the trajectory, so the main problem right now is visualization. I was asked about this. Is there any functionality in idv that would allow to do this? After inspecting idv, I wonder if writing a Jython script would be a good approach. Is it possible to modify the behaviour of the program so that a point is drawn on the map when the mouse is clicked? And then, would it be possible to use the Unidata API (as specified in the Javadoc) in order to draw this particle moving? Maybe I'm asking too much from jython scripts, and this could only be achieved writing a new version of idv?
That would be pretty tricky to implement. An easier approach would be to create a point observation data set that has an observation for each location/time of the particle. Then, load in the point obs data and display them. The IDV supports a simple text cvs format: http://www.unidata.ucar.edu/software/idv/docs/userguide/data/TextPointData.html -Jeff