| Spherical Surface Plot w/ fsc_surface from David Fanning (: [message #61430] |
Thu, 17 July 2008 08:41  |
humanumbrella
Messages: 52
Registered: June 2008
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Member |
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Hi,
So, I'm trying to make a spherical surface plot with the fsc_surface
class from Dr. Fanning. (:
Fun!
Anyways, I have two arrays, one of latitudes and one of longitudes --
then I have a data array which is lat x long 2D with datapoints.
Here's what I want to do, but have yet to be successful -- and I came
here to look for some tips. : )
Here is what I've tried: so, the surface plotter uses an index
notation for plotting of the datapoints. However, when converting to
spherical data, there will be lat*long x and y values, instead of lat
+long, ie there will no longer be only one lat for all longs, they
will all be different.
I'm using R as the data value that is in the dataset at [lat,long]
So, I'm creating a 2D array that is 2, lat*long
values[0, *] = sin(lat[i])*cos(long[i])*r ;X's
values[1, *] = sin(lat[i])*sin(long[i])*r ; Y's
then I have datapoints = lat*long
so now, I have the x's and y's I need, but I need to plot them as a
surface.
it will be,
plot
datapoints[0] at x[0]y[0]
...
datapoints[n] at x[n]y[n] where n = lat*long
Should I try to go about using volume for this spherical surface
plot ?
Thanks for any suggestions!
Cheers,
--Justin
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