Hello.

This post explores the challenge of removing specific elements from JavaScript arrays. It critiques the inefficient string manipulation method and introduces the filter() method (available in ECMAScript 5 compliant browsers) as a more elegant solution for removing elements by value. The post acknowledges the lack of a simple way to remove elements by index and hints at further discussion on this topic in a future post.

I'm building a hierarchical tag directory for Topicala and need your help populating it. You can add tags via the web interface or by using the API: http://www.topicala.com/api/add/[TagName] to add a new tag and http://www.topicala.com/api/add/[ParentTag]/[ChildTag] to create parent/child relationships. Your contributions will eventually allow users to filter search results more effectively.

I've previously mentioned the .NET Image Filter Library, and I highly recommend it to anyone interested in learning about programmatic image manipulation. The library is well-documented in an easy-to-follow CodeProject article by Andrew Krillov. You can find it here: Image Processing Lab and Motion Detection. I even created a fisheye filter for this API, which you can find here: Fisheye Example

I successfully implemented a fish eye effect! I peeked at Jason Waltman's code for inspiration and adapted it to C# using the Tiger Image Processing Library. Now I even understand polar coordinates better. It involves converting Cartesian (x,y) coordinates to angles and distances from the center of a circle. The effect itself figures out which pixels need distorting and then calculates their new positions.