Thanks alot, this got me started in the right direction. I still have fine tuning I need to do to get the size and draw point perfect but with some adjustments to the code I have it mostly working.
if any one wants to see I can post the new code. On Dec 21, 2009, at 10:23 PM, Henry McGilton (Boulevardier) wrote: > > On Dec 21, 2009, at 8:02 PM, Development wrote: > >> Then I don't understand how to do this. >> >> Do I create the context at this larger size? because that's what I did. >> Do I drawInRect the image at it's original size? Because that's what I did. >> >> As near as I can tell, no matter what I do, the image itself, not accounting >> for the shadow, is drawn in the upper left corner. this causes a negative >> shadow, or one to the upper left, to be cut off by the edge of the context. >> I have attempted using drawAtPoint, and accounting for the negative shadow >> by moving the point an amount that should accommodate the shadow. It did not >> work. >> >> Now if the shadow is to the lower right, the adjustments I make work >> perfectly every time and the shadow is exactly what it should be. >> >> I think the point is that I do not understand the context drawing. I thought >> I did but it should be painfully obvious from this thread that I do not. > > Are you aware that the context you get from UIGraphicsBeginImageContext > has its origin > at upper left ? > > In any case, I have posted a mini example that *appears* to do what you want, > but based > on the descriptions, I might have misunderstood, in which case please excuse > me for > wasting bandwidth . . . > > The project is here: > > http://www.trilithon.com/download/Shadow.zip > > Cheers, > . . . . . . . . Henry > > >> >> >> >> >> On Dec 21, 2009, at 8:45 PM, Graham Cox wrote: >> >>> >>> On 22/12/2009, at 1:49 PM, Development wrote: >>> >>>> however what I am getting now is a larger image, offset in the view and >>>> still cutting off the shadow. So I honestly do not know how I am suppose >>>> to draw this shadow. I would really be grateful for some additional >>>> direction. >>> >>> >>> Try thinking instead of flailing about throwing code at it. >>> >>> You need a bigger image to accommodate the shadow. But the image you want >>> to composite on top is the same size as it always was. So you need to keep >>> its original size around so you can draw it at that size but into the >>> larger image context. If you draw it at the new size you are back at square >>> one, but larger. >>> >>> --Graham >>> >>> >> >> _______________________________________________ >> >> Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) >> >> Please do not post admin requests or moderator comments to the list. >> Contact the moderators at cocoa-dev-admins(at)lists.apple.com >> >> Help/Unsubscribe/Update your Subscription: >> http://lists.apple.com/mailman/options/cocoa-dev/appledeveloper%40trilithon.com >> >> This email sent to appledevelo...@trilithon.com > _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
