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An object graphics problem [message #36023]

Mon, 11 August 2003 03:53

grl
Messages: 5
Registered: August 2003

Junior Member

Hi IDL Experts
I'm new to IDL programming and am stuck. My problem is this:
I have a (360, 18) array of numbers which I can wrap around a sphere
to display them with 360 cells of longitude and 18 cells of latitude.
I do this by using a spherical mesh_grid and wrap that around an
IDLgrPolygon object using the original array as vert_colors having
converted it to bytscl. This works fine. Then I draw a vector that
starts at the sphere's centre and exits the sphere through one of the
mesh_grid cells. I do this using IDLgrPolyline centered on [0,0,0] and
make it long enough to come through the sphere. This also works fine.
Now I want to cut the sphere with a plane that is perpendicular to the
vector and goes through the spheres centre and then be able to look
down the vector and see the data around the edge of the newly cut
sphere. Eventually there will be other spheres within the original, 60
of them in fact, so that eventually, I will be able to see 60
concentric circles about the vector that are colored according to the
original array. Any ideas?
Thanks, Gethyn Lewis

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[Message index]

		An object graphics problem By: grl on Mon, 11 August 2003 03:53
		Re: An object graphics problem By: Dick Jackson on Wed, 13 August 2003 09:24
		Re: An object graphics problem By: grl on Wed, 13 August 2003 04:52
		Re: An object graphics problem By: Karl Schultz on Mon, 11 August 2003 12:50
		Re: An object graphics problem By: Rick Towler on Mon, 11 August 2003 11:27
		Re: An object graphics problem By: Karl Schultz on Mon, 11 August 2003 10:49

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