Posts Tagged ‘Tutorials’

Thursday, February 12th, 2009

Regex Tutorial preg_match preg_replace

Understanding Regular Expressions can be a real pain, but they are a very powerful tool. I use them in Apaches mod_rewrite to create SEO friendly URL’s and to screen scrape content from sites. Here is a web site with excellent step by step broken down explanations as to how common regex engines work.


Thursday, January 15th, 2009

Image Resizing in Internet Explorer 7 and IE6

I’ve always been annoyed with how IE7 does image scaling. If you have an image that’s 100 X 100 and resize/scale it with HTML to 70 X 70 Internet Explorer doesn’t resample the image so┬áit winds up looking “blocky”. I ran across a page on Flickr’s Developer Blog that describes a little known CSS command that will cause IE7 to do bicubic resampling of HTML scaled images. If you use a Mac, both Firefox and Safari do bicubic resizing automatically…. The way to apply this to every image on your page in CSS:

<style>

img{-ms-interpolation-mode:bicubic;}

</style>

IE7 example:

Original Image Size

Image Scaled with HTML to 100px width:


Image Scaled with HTML to 100px - Bicubic Resampling:

For IE6 You have to get a little crazy for minor improvement…


<span style="position: absolute; z-index: 100; width: 100px; display: inline-block; filter:progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://www.google.com/intl/en_ALL/images/logo.gif',sizingMethod='scale');"><img style=" filter:progid:DXImageTransform.Microsoft.Alpha(opacity=0);" src="http://www.google.com/intl/en_ALL/images/logo.gif" border="0" alt="" width="100" /></span>

For more information on this IE6 fix check out Microsofts site: http://msdn.microsoft.com/en-us/library/ms532969.aspx

@Alex Glover
Full Size:


Bicubic is not working because the image you are using is a PNG:

Image saved as GIF:
nopicture
Image saved as JPG:

You will need to save all your “spotlight” images as JPG and make the background color the same as the background of the site, or re-size the image to the exact dimensions you need.


Sunday, October 5th, 2008

iPhone Programming Tutorials

One of the best video tutorial sites if you are just starting to dig into the iPhone SDK.