Tag Archives: grid

Maidenhead Grid Locator, in Perl

Amateur radio operators sometimes use the Maidenhead Grid Locator Square system to identify location. Here’s my attempt at a translator, written in slightly squirrelly Perl: Grid square to lat/long and grid square shapefiles to follow. Amateur radio operators sometimes use … Continue reading

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three norths to choose from

North is a slippery thing, a trickster. There are at least three norths to choose from: Magnetic north – where the compass needle points. Currently way in the northwest of Canada, it’s scooting rapidly towards Siberia. Come baaack, magnetic north! … Continue reading

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Toronto’s Angles

As many Canadians will tell you, most Torontonians are a bit skewed. While others might have different explanations, I put it down to our road grid. What we call north in the city is actually some 16.7° west of north. … Continue reading

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