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Re: Translation Error [message #26762 is a reply to message #26637]

Sat, 22 September 2001 06:44

Martin Downing
Messages: 136
Registered: September 1998

Senior Member

"Steve Hartmann" <s.l.h@badspam.home.com> wrote in message
news:+EiqO3DfXtqC9YDSjBLiIBClgzb+@4ax.com...
> Are you certain that the translation components of your *matrix* array
> are in pixels and not cm or mm?
>
> I don't believe that any type of round-off or other error in the IDL
> commands would give that much error. You could easily test the
> accuracy of your technique by creating a transformation without any
> rotation and some set translation (say [20, 0, 0]) and see if your
> transformed image is correct.
>
> -Steve

I agree - sounds to me like your transform matrix is the culprit - it is a
float/double isnt it?
If I were you I would use T3d to set the tranform as in the example
transform code I posted, or at least check against T3D.

Martin

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[Message index]

		Re: Translation Error By: Steve Hartmann on Thu, 20 September 2001 13:00
		Re: Translation Error By: Martin Downing on Sat, 22 September 2001 06:44

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