A method to call another method n times or until it returns true (success). Used to talk to wireless devices in a noisy environment where each call has a chance of failure. bool Try(uint n, Func<bool> func) { int i = (int)(n == 0 ? 1 : n); do { if (func()) return true; i–; […]
Continue readingI’ve been a using this implementation of the SortableBindingList by Tim Van Wassenhove for a few years now but recently I noticed that although making a change to the list updated all bound controls it did not update the backing collection. I switched back to a standard BindingList<T> in an attempt to resolve the issue and […]
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Blue Toque Software designed and built the web service YourLo.ca/tion a while back, and it became useful just a few weeks later on a search, assisting a local SAR group in locating a group of missing hikers. Since then SAR groups from around the world have been using the service and offering feedback. We are […]
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The short story is that I don’t have enough scientific knowledge to know how to calculate magnetic declination, but enough to know that it can be done, using just a position on the surface of the earth and some information about the earth’s magnetic field. This is such an important topic that I was pretty […]
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While busy working on TrueNorth, I implemented this based on the the Wikipedia Article. The Extents class, and the PointDType are simple structures to contain the view window, and the double precision coordinates respectively.
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At the prompting (or complaint) of a reader, I’ve shared a base class that I use with my code generator. The generated code is “pure” in that it doesn’t contain any methods that don’t have to do with the data — it doesn’t implement saving and loading methods. I could create a codemodifier for this, […]
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There are two major free/open source projection libraries available for use under .NET: GDAL and Proj.NET. GDAL has a long history, and is written in C++, so it’s compiled to machine code. The C# bindings are generated by a tool. Calling C++ from C# uses a process called “pinvoke” (Platform Invoke), and a certain amount […]
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For several reasons I have WordPress installed in the root directory of my hosted web space. I’ve been experimenting with the new ASP.NET MVC framework, Entity Framework 4, SQL Server Compact Edition 4 and other new technologies, and I wanted to do a test deployment. I was quite surprised when, after deploying to a subdirectory […]
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XsdToClasses is open source
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Introduction A QuadTree is a spatial partitioning strategy used to make queries on relationships between 2D spatial data such as coordinates in a Geographic Information System (GIS), or the location of objects in a video game. For instance, you may need to know all the objects within a region on a map, test whether objects are visible by […]
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