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Re: Zooming in place [message #46130 is a reply to message #46129]

Mon, 31 October 2005 09:37

pravesh.subramanian is currently offline

pravesh.subramanian
Messages: 21
Registered: August 2005

Junior Member

Thanks for the reply , David.

So going back to basics, a zoomed image is a scaling of the image,
right? The best part about IDL is that it is array-oriented. I fix a
default zoom factor, say 2. If the user clicks on some region in the
draw widget, I might want to consider a radius of say 200 pixels
around that point and scale all points in that region. It is easy till
here. But, as you mentioned, conversion from zoomed coord system to the
original system etc will cause more hurdles. The code will become more
dense than I have now :(

I also see what you mean by the biggest challenge. I have to map
device coords to the image .It seems somewhat intimidating!!

Best,
Pravesh

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[Message index]

		Re: Zooming in place By: ronn on Thu, 03 November 2005 18:30
		Re: Zooming in place By: pravesh.subramanian on Thu, 03 November 2005 16:27
		Re: Zooming in place By: David Fanning on Wed, 02 November 2005 00:32
		Re: Zooming in place By: AJ on Wed, 02 November 2005 00:13
		Re: Zooming in place By: JD Smith on Tue, 01 November 2005 13:00
		Re: Zooming in place By: Rick Towler on Tue, 01 November 2005 11:50
		Re: Zooming in place By: David Fanning on Tue, 01 November 2005 08:50
		Re: Zooming in place By: AJ on Tue, 01 November 2005 08:20
		Re: Zooming in place By: Paul Van Delst[1] on Tue, 01 November 2005 06:18
		Re: Zooming in place By: David Fanning on Mon, 31 October 2005 18:21
		Re: Zooming in place By: Rick Towler on Mon, 31 October 2005 16:11
		Re: Zooming in place By: Paul Van Delst[1] on Mon, 31 October 2005 14:38
		Re: Zooming in place By: JD Smith on Mon, 31 October 2005 14:05
		Re: Zooming in place By: David Fanning on Mon, 31 October 2005 10:09
		Re: Zooming in place By: pravesh.subramanian on Mon, 31 October 2005 09:37
		Re: Zooming in place By: David Fanning on Mon, 31 October 2005 09:15
		Re: Zooming in place By: David Fanning on Thu, 03 November 2005 18:42

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