comp.lang.idl-pvwave archive: archive » Re: READ_GIF and READ

Home » Public Forums » archive » Re: READ_GIF and READ_SRF

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

Re: READ_GIF and READ_SRF [message #882]

Fri, 02 April 1993 05:37

sterner
Messages: 106
Registered: February 1991

Senior Member

dean@phobos.cira.colostate.edu writes:

> I am using READ_GIF and READ_SRF to read GIF and Sun Raster files with
> IDL. The problem I am having is I would like to resize the TV window to
> fit the GIF or raster file. This x and y size information doesn't appear
> with READ_GIF or READ_SRF. Just filename, image, and color. My question
> is, Where can I get the x and y size information about GIF or raster file?
> This information is within the GIF and Sun raster file, but does IDL provide
> it?
> Kelly Dean
> CSU/CIRA

This information is available after you read the image. Just use the
size function to find the image size and set the window. Example:

read_gif, 'example.gif', img, r, g, b
sz = size(img)
window, xs=sz(1), ys=sz(2)
tvlct, r, g, b
tv, img

Ray Sterner sterner@tesla.jhuapl.edu
Johns Hopkins University North latitude 39.16 degrees.
Applied Physics Laboratory West longitude 76.90 degrees.
Laurel, MD 20723-6099

Report message to a moderator

[Message index]

		Re: READ_GIF and READ_SRF By: sterner on Fri, 02 April 1993 05:37
		Re: READ_GIF and READ_SRF By: isaacman on Wed, 31 March 1993 15:16
		Re: READ_GIF and READ_SRF By: woody on Wed, 31 March 1993 08:31
		Re: READ_GIF and READ_SRF By: jacobsen on Wed, 31 March 1993 03:08
		Re: READ_GIF and READ_SRF By: jacobsen on Wed, 31 March 1993 03:05

Previous Topic:	Logarithmic Z axis on surface plot ?
Next Topic:	IMSL/IDL X-windowing Resource Editor?

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Mon Dec 01 06:20:28 PST 2025

Total time taken to generate the page: 2.00593 seconds