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Re: Student vs. normal version [message #46526 is a reply to message #46452]

Thu, 24 November 2005 13:35

Kenneth P. Bowman
Messages: 585
Registered: May 2000

Senior Member

In article <1132848333.541287.60610@o13g2000cwo.googlegroups.com>,
nmd.oliveira@gmail.com wrote:

> Do you save 3D variables in the PNG format? (As an alternative to make
> scientific "movies"?)
> If I try to pass a 3D var to the WRITE_PNG routine I get this error
> message:
>
> % WRITE_PNG: Image array must be (n,m) or (1-4,n,m).
>
> I see the in the reference guide (pag.2523) that they refer the
> possibility of saving a 3D variable, but I can't see how.

By 3-D do you mean 24-bit?

This works for me

IDL> plot, sin(findgen(10))
IDL> write_png, 'test.png', tvrd(true=1)

For some reason PNGs need to be interleaved over the first dimension.

To make movies I write a series of PNGs and use QuickTime to convert to
a movie.

Ken Bowman

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[Message index]

		Student vs. normal version By: bas on Wed, 23 November 2005 22:40
		Re: Student vs. normal version By: Peter Clinch on Fri, 25 November 2005 00:35
		Re: Student vs. normal version By: Ben Panter on Mon, 28 November 2005 05:06
		Re: Student vs. normal version By: bas on Thu, 24 November 2005 21:18
		Re: Student vs. normal version By: Kenneth P. Bowman on Thu, 24 November 2005 13:35
		Re: Student vs. normal version By: David Fanning on Thu, 24 November 2005 08:40
		Re: Student vs. normal version By: Nuno Oliveira on Thu, 24 November 2005 08:38
		Re: Student vs. normal version By: Nuno Oliveira on Thu, 24 November 2005 08:29
		Re: Student vs. normal version By: David Fanning on Thu, 24 November 2005 08:20
		Re: Student vs. normal version By: Nuno Oliveira on Thu, 24 November 2005 08:17
		Re: Student vs. normal version By: David Fanning on Thu, 24 November 2005 08:09
		Re: Student vs. normal version By: nmd.oliveira on Thu, 24 November 2005 08:05
		Re: Student vs. normal version By: Peter Clinch on Thu, 24 November 2005 06:42
		Re: Student vs. normal version By: Kenneth P. Bowman on Thu, 24 November 2005 06:19
		Re: Student vs. normal version By: David Fanning on Mon, 28 November 2005 06:21
		Re: Student vs. normal version By: Haje Korth on Mon, 28 November 2005 05:41

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