comp.lang.idl-pvwave archive: archive » Map an image onto a sphere

Home » Public Forums » archive » Map an image onto a sphere

Show: Today's Messages :: Show Polls :: Message Navigator
E-mail to friend

Map an image onto a sphere [message #90903]

Mon, 11 May 2015 11:22

joellama
Messages: 8
Registered: July 2013

Junior Member

Hi all,

I'm sure this has been answered before but I can't find the answer. I have an array that is 360 x 180 and I want to project it onto a sphere for display purposes. I've had success using the Molleweide projection with the documentation

arr = randomu(seed, [360, 180])
mollmap = IMAGE(arr, $
LIMIT=[-90,-180,90,180], GRID_UNITS=2, $
IMAGE_LOCATION=[-180,-90], IMAGE_DIMENSIONS=[360,180], $
MAP_PROJECTION='Mollweide', rgb_table=13)

But I can't seem to change it so that the projection is onto a sphere instead. Any help would be greatly appreciated. I would also ideally like to be able to specify the central longitude and latitude.

Thanks!

Report message to a moderator

[Message index]

		Map an image onto a sphere By: joellama on Mon, 11 May 2015 11:22
		Re: Map an image onto a sphere By: chris_torrence@NOSPAM on Thu, 14 May 2015 07:27
		Re: Map an image onto a sphere By: penteado on Thu, 14 May 2015 21:59
		Re: Map an image onto a sphere By: penteado on Thu, 14 May 2015 22:01

Previous Topic:	% Program caused arithmetic error: Floating illegal operand
Next Topic:	Re: Help extracting a single column from dat file

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Sun Nov 30 12:19:36 PST 2025

Total time taken to generate the page: 1.51409 seconds