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Chameleon 1.1 / MapServer JavaScript Dynamic Tree Legend Widget

A while back, I was given a challenge to integrate a dynamic JavaScript-based legend into Chameleon  The following information is my take on creating a Widget for use in a MapServer / Chameleon implementation.  If you are not sure what Chameleon and MapServer are, then the following info may be of little use to you.  To learn about these online mapping tools, you can find more at the DM Solutions – MapTools...
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DYI, Mods, Hacks & Stuff

LEGO X50/X50v Cradle

I am an AFOL (Adult Fan of Lego) and specialize in building and programming Lego robots (look at the rest of this site for more of my robots). I use (or play) with Lego Technic / Mindstorms for the most part. I got an idea to see what I could come up with for a cradle for my Axim. Below is my first run at a Lego Dell Axim X50 / X50v cradle. It...
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Autonomous

Walker

I managed to re-work an old design. By using 2 motors and drive mechanisms, I was able to get the walker to steer. The key to steering is the syncro mechanism that I setup. It uses 2 touch sensors – 1 on each of the left and right center drive legs. Using NQC, the code will monitor the timing of the rotations. It goes something like this: When sensor #1 is triggered – is...
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Autonomous

Johnny 5

Johnny5 was built more as a test to see how similar I could build him out of lego.  Programming on Johnny5 was simply line following with object avoidance via touch sensors at the front. His hands and head would also move in a pre-defined pattern.  The pneumatics are there for visual effects.  They serve no function on this model. Rate This Post:
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LEGO Robots

DTM

This is my LEGO ??dpi (25 I think) DTM scanner. The DTM works via a combination of RCX-based code done in NQC / RCXCC, and a program made in Visual Basic (5). RCX – The RCX is responsible for scanning a line, and populating its datalog with pixel values and then sending a signal for the PC to upload this data. The RCX then waits for the PC to send a signal back to...
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Autonomous

MarbleMiser I

Marble Miser was designed to meet the challenge of the 4th Annual Lego Robotics Competition / Get together at U of T in Toronto Ontario. Many thanks to Calum and the boys for putting this together.  It was the first event that I was able to attend, and it was a great time.  The turnout yielded many more entrants than initially expected. To find out more about the event, visit RTL Toronto Website. Now...
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Autonomous

DominoBot

It had been a few months since I built my last robot (Climber). During the early summer of 2002, I received an email from Syngress. They had indicated that they were going to create a series of “10 Cool Lego Mindstorms Robots….” books, and invited me to produce a model for one of them. For some time I had the idea of building a robot that could mimic the activity of laying down dominos...
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Autonomous

MarbleMiser 2

MarbleMiser2 takes First Place in RTL15 – Deep Yellow Robotics Event here in Toronto. It was a great day. The competition consisted of 2 events. The first being Connect Four, the second being Marble Sorting. There were 9 robots competing in the Marble Sorting competition. All of which were great designs. Some robots (including MarbleMiser2) were designed to move around the field while picking up marbles and throwing out the opponents colour. Others used...
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