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Re: Full Image Display [message #37810 is a reply to message #37802]

Fri, 23 January 2004 12:26

btt
Messages: 345
Registered: December 2000

Senior Member

Gaurav wrote:
> Hello everybudy!
> Could anyone please tell me...how do we display a image in IDL?
> Right now i am using the 'TV' function but it is not displaying the
> full image. It is actually displaying only a 512*512 portion of the
> image (irrespective of the actual size of the image provided it is
> more than 512*512). Can anyone tell me why does it happen so & also
> suggest a better alternative for the 'TV' function.
>

Hello,

The TV command is drawing the entire image, but I expect you window size
is not matched to the image size. Any portion of you image that isn't
displayed is drawn 'off-canvas' so to speak. Try the following...

dim = SIZE(image, /DIM)
Window, /FREE, xsize = dim[0], ysize = dim[1]
TV, image

If you have a very large image, you should consider spending time at
www.gumley.com and www.dfanning.com where you can find more robust image
display software for IDL. Come to think of it, you should spend some
time at those sites just for general IDL know-how.

Cheers,
Ben

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[Message index]

		Re: Full Image Display By: David Fanning on Mon, 26 January 2004 06:36
		Re: Full Image Display By: Fotis on Mon, 26 January 2004 00:04
		Re: Full Image Display By: David Fanning on Sat, 24 January 2004 13:13
		Re: Full Image Display By: gauravjn123 on Sat, 24 January 2004 10:15
		Re: Full Image Display By: btt on Fri, 23 January 2004 12:26
		Re: Full Image Display By: David Fanning on Fri, 23 January 2004 12:24

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