Sunday, February 26, 2006

SLurling and the status of aeroplanes

Those who publish pieces regarding Second Life on the internet will be interested to learn of a service known as SLurl, which allows once to easily link to a location in Second Life and have the viewer taken to a map of it and given the option to visit, whether they have the Second Life client installed or not.

I consider this a most useful service to provide, and a simple SLurl is just of the form:

http://slurl.com/secondlife/Acontia/56/186/86/

which one would hope that anyone could construct. However, the building of a customised SLurl that utilises the full range of other options is somewhat time-consuming and a little daunting to the novice.

To save time in this matter, I have created what seems to me a useful web page that allows one to simply fill in the blanks on a form and produce a SLurl. It is called SLurlBuilder. Please feel free to use it as desired.

Me with paper aeroplane

If anyone was concerned with the progress of my paper aeroplane investigations, I can announce that I did, in the end, come up with a design for the aeroplanes that seems to provide reasonable results. Rather than calculating the angle of attack each time, I simply assumed that it would always be zero given that the plane does turn to face its direction of movement anyway.

The plane now basically works with lift and drag, both proportional to the velocity. Lift applies in its local Z-axis, and drag in its local X-axis. Using llSetForce with the local flag set really does save a lot of time as far as calculating the correct co-ordinates is concerned.

The resulting item is now available at Ordinal Laboratories, but one can also scan the aeroplane code here and now should one wish (pretty colourised HTML version).

4 Comments:

Blogger Torley said...

I just wanted to say, THANX FO' THA SLURLBUILDER. Most graciously appreciated.

3/07/2006 08:29:00 AM  
Blogger Ordinal Malaprop said...

My pleasure! Thinking on the matter I should now link to the more pleasantly-designed version on the Slurl site.

3/07/2006 11:28:00 AM  
Blogger President Leechman said...

How about having it blown by the wind?

3/29/2006 06:27:00 PM  
Blogger Ordinal Malaprop said...

I did consider it, but it makes it rather hard to actually aim the thing. I might put it into a new version at some point.

3/29/2006 08:04:00 PM  

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