gis page 4 - Dave's Blog

Zoo Trip

2007 Jun 7, 4:35A few weekends ago Sarah and I visited the Woodland Park Zoo (Finding its website I'm amazed that its domain is 'zoo.org'. Somebody in Seattle was quick on the domain registration.) I liked the zoo except for all the children. Human children... As visitors to the zoo... What did you think I meant? The kids are everywhere! Shouldn't they be inside playing video games or something?

There was a gorilla that was wrapped in a dirty blanket. It looked like a homeless person and very sad. I'm reminded of the episode of the Simpsons in which the octuplets work at the zoo and the scene in which while Homer is breaking out the children a gorilla tries to get him to take her child too. Looking for a clip of this to post here I can only find clips from the Simpsons in German for some reason. Like this one.

Two thirds or so of the way through my camera started running low on power. We were forced to choose which animals were camera worthy. Is it too common? Is it cute enough? Etc. Sarah took a very nice shot of some hippos under these conditions. Unfortunately I couldn't get a good angle and view of the Elephants. But they were cool and had an interesting habitat (that's zoo for large-ish cage.)zoo personal nontechnical

Commenting Wishlist

2007 May 1, 4:33In the past I've come up with ideas for software and find that the very idea is implemented soon after. So this time rather than getting down about it I'm going to make it work for me. I'll state what I want to use and hope that its magically implemented. In order to uniformly support comments on my website I want a web service with the following features:

• Allow users to view and add comments for any particular URI.
• Use OpenID and optionally Card Space to identify users.
• Use a captcha system that's optionally cute or humorous.
• Has atom or rss feeds of the comments available.
• Doesn't require users to register.
• Doesn't require any extra steps for commenting on a URI that no one has commented on.

I'm going implement this now so no one go off and do it before me so that I can use it without having to do anything...technical homepage

Opera Speed Dial Code-less Hack for IE7

2007 Apr 17, 11:45Opera (the fifth most popular web browser) has a new feature named Speed Dial (video of it in action). Whenever you open a new tab you get your Speed Dial view which consists of nine thumbnails of user-settable pages. Its like a quick-favorites that appears every time you open a new tab. I think this is a neat idea and was considering how I might do that in IE7. The following is my hack-y and ugly but no coding required version of Speed Dial for IE7. I like my hack and I'm about to expound upon it in unnecessary detail so skip to the last paragraph if you're afraid of losing interest.

By default in IE7, whenever you open a new tab you navigate to 'about:Tabs'. As noted in wikipedia the result of navigation to 'about:Tabs' is determined by values in the registry. Specifically, values in the key in "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\AboutURLs". Usually this fact is exploited by malicious software to hijack "about:blank" and show you ads but we can hijack it too in order to display our Speed Dial-ish page.

Of course since this is a code-less hack we've got limited options on what to change 'about:Tabs' to display. It should have the following requirements.

1. Something local so that our 'about:Tabs' doesn't disappear when we go offline and so that its relatively fast.
2. The user should be able to modify its content.
3. Show links that the user uses.
4. Show thumbnails of those links
5. Provide easy to use drag and drop interaction and generally look cool.

Now, I use del.icio.us which allows me to store all of my favorites online and which provides RSS feeds that list my saved links. New in IE7 is an RSS platform that will, among other things, cache RSS feeds locally. So, by pointing about:Tabs to my del.icio.us feed 'http://del.icio.us/rss/sequelguy/quickreference' I get (1) from IE7's RSS support, and (2) and (3) from del.icio.us. Of course requirements (4) and (5) are missing but hey, I said this was ugly.

In summary, if you change the registry value "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\AboutURLs!Tabs" to point to an RSS feed of your favorites you can get a hack-y version of Opera's Speed Dial. I should note that although its referenced on pages such as wikipedia changing your 'about:Tabs' URI in the manner I describe is not documented and not supported by Microsoft. There could be all kinds of horrible repercussions from this change of which I'm not aware. Yeah, actually you know what? Forget I said any of this. Pretend I never wrote it...browser technical hack