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Richard Jones (MVP)

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December 2008 Entries

So I thought, ahead of new year, I should just prove end-to-end the components of the GPSd service. What better way than to plot our current position on a map. Using a converted version of the GPSd client, that we talked about previously, I parse the NMEA data coming from the GPS and produce an XML file of the following - <?xml version="1.0" encoding="utf-8" ?> <movingmap> <latitude>51.267</... <longitude>-1.108<... <bearing>182</bear... ......

Just to prove that it can be done. Here is a GPSd client running on a mobile device. I'm just getting the raw stream of NMEA data out of the GPS (which is the whole point of GPSd). Obviously the client can then use this data for its own purposes. To make the example shown work, I have laptop connected to home wireless network and in turn connected to GPS via BlueTooth. The Windows Mobile device is also on my wireless network and picks up the GPSd server running on the laptop. The fun part of the ......

So a step further today. I've got the GPSd service up and working with a Bluetooth GPS. I've also got everything running nicely as a Windows service. Finally, I wrote a small client that connects to the GPSd service. Full source available - Here Next task is to perfect the auto-discovery of GPSd services, then onto writing some nice moving map applications ......

Just found this website,  which is prefect for getting rid of old mobile devices...

http://www.fonebank.com/


So back on the topic of GPSd, I thought it was pretty wasteful to have the GPS device broadcasting to the world if no machines are connected to the service. So today I implemented a feature that monitors the number of connections to the service and only starts the GPS connection when the first client connects. New version HERE ......

Ok, last post I talked about the possibility of being able to subscribe to a published GPS. Well I've only gone and done it. I've built a small GPS server that broadcasts the data from a connected GPS. This is the server running - To attach type TELNET localhost 2947 at your favourite command prompt. You'll see the GPS being broadcast like so - (looks about the same doesn't it, which I guess is the whole point) Full Visual Studio project - Here Let my know what you think? Its a multi-threaded server, ......

So I got thinking, if your sitting as a passenger on a train, boat, plane, car etc. Wouldn't it be cool to be able to pickup the position of the vehicle your sitting in on your laptop/PDA. I was thinking along the lines as the mapping displays that you get in some passenger aircraft but available on your device. So imagine the scenario, you open your laptop while on a cruise etc. and your laptop auto discovers the location service and you can use this to display a realtime map, or use the location ......

On iPhone. The world is indeed a strange place. --> Download from Apple Appstore here --> ......

This is nice. Ever wanted to have a digital picture frame, picking up news, travel, weather oh and the odd photo. Have a look at http://frameit.live.com/ Mike Hall has also been building some nice applications in managed and non managed code to consume the feeds - http://blogs.msdn.com/mikeh... Time for a nice mobile photo viewer I think ......

(Blondie - Picture This) This post has nothing todo with the title, but just thought it was funny... Last week, I began writing an AJAX calendar control within Visual Studio. This is how far I got: However, I had an interesting problem. I resumed my laptop from Hibernate (I was not in a hot bag situation that day). I was staying in a hotel using a standard WIFI connection provided by the hotel. Clicking a button on my calendar control caused an AJAX event to pull back data. However because I was ......

This looks pretty cool. I wonder if they are using devices with GPS's ......

So, got the Motorola MC75 working with its inbuilt camera. However during a demo the other day I inadvertently clicked my camera capture button on a device that doesn't have an inbuilt camera (doh). Of course my application then blew up. So here's the code that performs a camera capture but also detects (well catches) if the device doesn't have one... try { CameraCaptureDialog ccd = new CameraCaptureDialog(); ccd.InitialDirectory = @"\"; ccd.DefaultFileName = "test.jpg"; ccd.Mode = CameraCaptureMode.Still; ......

Ever had the issue, when you think you're laptop is powering down.  Place laptop in bag only to find a while later  laptop didn't power down and has done a nice job in warming up your bag?

This phenomenon has been happening more and more to me, as the graphics drivers are causing a crash when my machines attempts to hibernate.

I just thought we'd better give this syndrome a name.    I've called it 'Hot Bag Syndrome'