scaling

I have a small IPhone app that I am working on and I am displaying an image with a UIImageView. I am scaling it up using the Aspect Fit mode. I would like to have the image scale up with no interpolation/smoothing (I want it to look pixellated). Is there any way I can change this behavior? A little more general question would be can I implement my own scaling algorithm, or are there other built in ones that I can select? You would need to set the magnificationFilter property on the view's layer to the nearest neighbour filter: [[view layer] setMagnificationFilter:kCAFilterNearest] Make sure

I'm developing an iOS 4 application. I'm using this code on an UIImageView on an UITableViewCell : cell.photo.contentMode = UIViewContentModeScaleAspectFill; [cell.photo setClipsToBounds:YES]; My images are taller than wide, and when I set UIViewContentModeScaleAspectFill , images are scaled to fit width with UIImageView width. Doing this, the image gets bigger that UIImageView and I see it outside UIImageView . Then, I need to use setClipsToBounds:YES to don't allow this, but now all my images lose their head. Is there any way to use UIViewContentModeScaleAspectFill and center top left image

I have an image that is 480 pixels by 40 pixels. I would like to show this image in an ImageView without having it scale to fit. Ex: If my screen is only 320pixels wide I would like only 320pixels of the image to show on the screen, not have it cram itself into the ImageView (even if it means that the rest of the image gets cut off). Is there a way to prevent it from scaling to fit? EDIT: Also, I would like the left side of the image to line up with the left side of the device's screen. Thanks nhaarman Use ScaleType.CENTER , like this in XML: android:scaleType="center" This will "center the

I plan to use the Quartz scheduler as I read many good opinions about it. My problem is as follows: I will have thousands of triggers living in the system at any given time. Most of the triggers will fire just one event and die. In addition, it is very likely I will have to cancel many jobs after their allocation (based on new input). Can Quartz scale to this? Which JobStore is recommended? I planned to use the JDBC one over mysql. Added Information : My jobs will either send an e-mail or post data via HTTP post to other services (over WAN). There are some tips and recommendations in the FAQ:

How do websites like Digg, Del.icio.us, and StackOverflow implement tagging? I know this other question has an accepted answer of a many-to-many relation with a cross ref table. But how do the "big boys" do it? The same way? How is it scaling? Rex M Here is the oft-quoted article which breaks down tagging schemas by real performance metrics: http://tagging.pui.ch/post/37027746608/tagsystems-performance-tests The author notes that the founder of delicious explains using an RDBMS for tagging simply does not scale to many millions of items under load. An alternative like Lucene may fit better in