Jeroens blog

Yesterday I spend about an hour creating the most useless application I’ve ever come up with. The main motivation for this was proving to a friend that solving a certain problem can be achieved with an algorithm containing only 1 loop and 1 if else structure. (And no GoTo’s! :p) It was also a nice opportunity to freshen up my C# skills and mess around a little more with the Beta 2 of Visual Studio 2010.

The application allows to generate a list containing random indexes of that list as values, and with a few special values. The application then allows you to find out whether by following the indexes route, you’ll end up with a special value (and which one), or get into an infinite loop. It also allows to slow down each step, enabling you to track the followed route.

You can has downloads:

• Application executable (requires .Net 2.0 or above)
• Source code (Visual studio 2010 C# WinForms solution)

Two days I go I got the beta 2 of Visual Studio 2010, which is scheduled to be released in the first half of next year. With it, came .Net Framework 4 beta 2. I’ve taken a good look at the changes in these new versions, and am really excited about the new features included in them.

The new WPF interface of VS is obviously cool, but it includes heaps of improvements, making life for the user easier. I’m still in the process of finding all goodies

The changes in the new .Net Framework are even more exciting. It includes a new parallel programming model, enabling you to create multi threaded applications without having to bother the low level work like locks and thread pools that was required until now. Also new are code contracts, a very handy feature allowing you to specify certain conditions for your code state (see this blog post). On top of that, there are various new features that where lacking in previous versions of the framework, like biginteger support, tuples and complex numbers, as well as multiple others.

Yesterday I released version 0.4.2 of both Maps and Semantic Maps. Apart from the version number, this release includes some interesting changes.

As resided in my previous post, Maps now supports Google Maps overlays. Another change in it’s usage is that Maps now holds into account the coordinate and address naming of the main parameter. Although both these and the default (nameless) parameter are basically the same, and all indicate the locations that should be indicated (or shown) on the map, they get handled differently with respect to the new (since 0.4) smart geocoding feature. Here you have an overview of the different behaviours:

• Default (nameless) parameter: Maps will check every item in the list, and determine whether it’s a coordinate or not. In case it’s a coordinate, it’ll be parsed as a coordinate, and in case it’s not, Maps will attempt to geocode it. When this geocoding fails, you will get an error saying the item could not be geocoded.
• Coordinates parameter. As you probably expect, this parameter expects and only accepts coordinates. It works pretty much the same way as it did before 0.4 in display_point. When an item is not recognized as a coordinate, you’ll get an error saying it’s not a valid coordinate and has been omitted.
• Address(es) parameter. Similar to the coordinates parameter, this one expects and only accepts addresses. It works pretty much the same way as it did before 0.4 in display_address(es). Maps will attempt to geocode every item, and show an error listing all items that could not be geocoded. Important to note here is that Maps does not checks for coordinates, and will attempt to geocode any provided ones, valid notation or not, resulting in an error message.

Version 0.4.2 includes a lot of important bug fixes, and is more a release aimed at stability, then at adding new features. Depending on the amount of issues to be discovered in the coming weeks, a version 0.4.3 might be released before 0.5.

Downloads:

• Maps 0.4.2 (zip, 7z)
• Semantic Maps 0.4.2 (zip, 7z)
• Maps and Semantic Maps 0.4.2 (zip, 7z)
• Maps 0.4.2 SVN tag
• Semantic Maps 0.4.2 SVN tag

The last 2 days I’ve been fixing a whole bunch of issues in Maps and Semantic Maps that surfaced since 0.4.x. I’ve also taken some time to implement a new, and IMO pretty awesome, feature for Google Maps.

You can now specify overlays for any Google Maps map. These overlays will be held in a new ‘overlays’ control you can add to the map, by which the user can select and deselect the available overlays. ATM there are 4 supported overlays: Wikipedia, Webcams, Photos and Videos. A new setting in Maps allows you to set the default overlays that should be selectable on a map, and also which of them should be shown on page load. A new ‘overlays=’ parameter allows you to override this default behaviour. This example demonstrates the use of this parameter:

|overlays=wikipedia-1,webcams-1,photos,videos

The additional -1 for the first 2 overlays indicates they should be shown at pageload. The underneath image is a screenshot of a map generated with this parameter:

Using this feature together with the Google Earth plugin, which is also supported by Maps, results in awesome interaction with the map. This screenshot gives you a glimpse, but you should try it out for yourself to get all awesomeness.

As you can see, the overlays control will not be shown when viewing the Earth view. You can change the overlays by switching to another map type, changing them, and then changing the map type back to Earth.

Like the title of this blog post indicates, this feature is new in Maps 0.4.2. This version of Maps has not been released yet, but an RC is available for download (click here for Maps & Semantic Maps 0.4.2 rc1). This release will include some other changes, and a load of big bug fixes. I’ll post more about this after the release, which will probably be tomorrow, or Saturday.

Like every self respecting geek, I have a collection of science fiction books, mainly Star Wars. Today I found a bunch of Star Wars books in a second hand English book shop in Gent. Surprisingly, quite some of the books where pretty recent, including ‘The new Jedi order‘ and ‘Legacy of the force‘ books. Even Timothy Zahn‘s just released novel Allegiance was present.

I bought 14 books, and will probably go back after I’ve checked some stuff about some other books. The funny thing is that each book was €3. So the total was €3*14. WIN! (That’s 42, for those who don’t get it!) I managed to get a discount though, but it still stays a win

Yay – I just got my new business cards! I now have 500 cards with these front and back sides:

I ordered these cards via flyer.eu, where I had to enter some personal information like name, address and company. Assuming the company field was for the company you worked for, rather then the one you own, I entered Google. Wrong assumption! My receipt now states the order is for Google, located at my home address – LOL.