One method to extract QNFs from the simulation results is to use DV to produce
an appropriate 1D slice of the data, then use xvs' reduce function to
plot a given point as a function of time.
In the following example, we assume that the real part of the Teukolsky
function is called "phre".
- send phre to the DV (sdftodv phre)
- from the Functions window, clone phre with a filter to select
the desired theta=constant slice of the data (we recommend slicing
along theta=pi/2). For example, if the dimension of phre is 65x33
in (r,theta), then the following filter argument can
be used (see HERE for help on using filters)
ib = 1,65,17,17
Enter phre_slice (say) as the new name for the register, and click
- On the DV main window, select phre_slice, and then
"Write selected SDF(s) to disk" from the file menu, and save it to the
- From a shell, send the slice to xvs (sdftoxvs phre_slice.sdf).
- Use xvs' reduce -> y[j] function to plot the desired point as a function