ps this centers the zoom around the center of the scrollpane instead of a dot
On 11/8/06, Hans Wichman <[EMAIL PROTECTED]> wrote:
Hi Jon, i did something similar a while back, with the content of a scrollpane. It was something like this: //get the original x and y centre before scaling var orgX = (((pane.width-16)/2)+pane.hPosition)/(pane.content._xscale/100 ); var orgY = (((pane.height-16)/2)+pane.vPosition)/( pane.content._yscale/100); //change the scaling var lastscale = pane.content._xscale; pane.content._xscale = pane.content._yscale = scale; pane.redraw(true); //now use the formulas the other way around to get the new h and v position for the pane pane.hPosition = (orgX * (pane.content._xscale/100) - ((pane.width-16 )/2)); pane.vPosition = (orgY * (pane.content._yscale/100) - ((pane.height-16 )/2)); I think the -16 was to compensate for the width of the scrollbar, but can't tell for sure lo, was rewriting someone elses stuff at the time under pressure:). hth JC On 11/8/06, Jon Bennett <[EMAIL PROTECTED]> wrote: > > > The math for this is luckily just algebra and doesn't require any > > complex trig or calculus, and there are a few different ways to do it. > > > This might help you on your way: > > > > http://www.darronschall.com/weblog/archives/000054.cfm > > looks perfect, thanks! > > jon > > -- > > > jon bennett > t: +44 (0) 1225 341 039 w: http://www.jben.net/ > iChat (AIM): jbendotnet Skype: jon-bennett > _______________________________________________ > [email protected] > To change your subscription options or search the archive: > http://chattyfig.figleaf.com/mailman/listinfo/flashcoders > > Brought to you by Fig Leaf Software > Premier Authorized Adobe Consulting and Training > http://www.figleaf.com > http://training.figleaf.com >
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