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Establishing ZoomLimits using ZoomToRect (Read 1846 times)

kaykay15 YaBB Newbies Offline I love YaBB 1G - SP1! Posts: 43 Joined: Mar 11^th, 2010	Establishing ZoomLimits using ZoomToRect Dec 14^th, 2010 at 3:48pm	Print Post
	Hello Stoyon, It has been a long long time i've posted in this fourm.... The Mindfusion diagramming component was a perfect match for our requirement.. Our applicaiton has just crossed the beta stage and is live now, you can view it now @ http://www.ravencloud.com Cheers Mindfusion team. The thing i came back here is; we need to set the zoom limits for the diagram. We are using the diagram.ZoomToRect() method for zooming, Currently if we allow the end user to zoom with out limit; there is a performance issue as the application is getting slowed down. So now we need to limit the zooming level of the diagram. i have tried to reset the zoomlimit to 200 if the zoomlimit is greater than 200 after ZoomToRect() method. It is limiting the zoomlevel but not centering the selected region; is there any way to center the selected region and limit the zoom factor of the diagram? Thanks, -KayKay

	Thanks,&&-KayKay
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Stoyo God Member Offline MindFusion support Posts: 13230 Joined: Jul 20^th, 2005	Re: Establishing ZoomLimits using ZoomToRect Reply #1 - Dec 14^th, 2010 at 4:35pm	Print Post
	Congratulations 8) You could call ZoomToRect again for easier centering. It should look something like this: Code diagram.ZoomToRect(rect); if (diagram.ZoomFactor > 200) { double ratio = diagram.ZoomFactor / 200; double w = rect.Width * ratio; double h = rect.Height * ratio; double dx = w - rect.Width; double dy = h - rect.Height; rect.X -= dx / 2; rect.Y -= dy / 2; rect.Width = w; rect.Height = h; diagram.ZoomToRect(rect); } I hope that helps, Stoyan


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kaykay15 YaBB Newbies Offline I love YaBB 1G - SP1! Posts: 43 Joined: Mar 11^th, 2010	Re: Establishing ZoomLimits using ZoomToRect Reply #2 - Dec 16^th, 2010 at 7:55am	Print Post
	Works like a charm! Stoyon... You Rock...

	Thanks,&&-KayKay
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