whiskeyspider - Developer IT

Need example of how to create/manipulate image pixel data with iPhone SDK

- by whiskeyspider

Looking for a simple example or link to a tutorial. Say I have a bunch of values stored in an array. I would like to create an image and update the image data from my array. Assume the array values are intensity data and will be updating a grayscale image. Assume the array values are between 0 and 255 -- or that I will convert it to that range. This is not for purposes of animation. Rather the image would be updated based on user interaction. This is something I know how to do well in Java, but am very new to iPhone programming. I've googled some information about CGImage and UIImage -- but am confused as to where to start. Any help would be appreciated.

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Can JavaScript load raw bytes to use in HTML 5 Canvas?

- by whiskeyspider

Say I had a file like... http://my.website.com/myfile.raw and this file was just raw bytes, representing an intensity image. Is it possible to grab this data and read the bytes in JavaScript? And then using it with HTML 5 canvas (e.g., putImageData) to draw an image? Or is there some other way to do this in the browser without Java or Flash?

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How to make Eclipse compile with Java 1.5 in Mac OS X Leopard (10.5)?

- by whiskeyspider

I have been developing in Snow Leopard (10.6). I believe I have some Java6-only API features and I'd like to find these. I moved my project to Leopard (10.5) -- since Snow Leopard does not support Java 1.5 -- but I am so far unable to make Eclipse give compile errors for a Java API call which I know to have been added in 1.6. Here is what I have done: Project properties - Java Compiler - set everything to 1.5. Preferences - Java - Installed JREs - selected JVM 1.5.0. Project properties - Java Build Path - Libraries - says JRE System Library [JVM 1.5.0] What am I missing? Is there another way to find Java API calls added in 1.6 when using Eclipse in Snow Leopard? Thanks.

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