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turn-by-turn navigation

04 May 2012

CartoType's routing system creates routes, and that's all. A route is a list of roads and parts of roads starting at one place and ending at another. If you need to issue navigation instructions to a driver you had to figure that out yourself, at least until recently.

But that will soon... Find out more...


drawing urban areas

08 April 2012

OpenStreetMap data doesn't have satisfactory urban area polygons. It has some but not all city and municipality boundaries, but those are not the same thing at all; and incomplete data is useless. Natural Earth has Find out more...


Changing styles at runtime using XML entities

07 December 2011

Wouldn't it be nice if you could make an attribute in your style sheet, like a road color or a font size, into a variable which you could change from your application? There's already a way to do this using style overrides, but here's a simpler and more efficient way.

Invent a name for... Find out more...


speed improvements

14 September 2011

Changes to the CTM1 map data file format allow large maps to be drawn much faster.

Recently we had some trouble getting large maps to draw fast on iOS (on the iPhone and iPad). The CTM1 (CartoType map data) files were in the low hundreds of megabytes and included terrain data so that... Find out more...


slippy maps for iOS and OpenStreetMap tiles

14 April 2011

RouteMe is an iOS framework for rendering maps using tile bitmaps. We already have a working RouteMe data source using CartoType. It reads CartoType map files (in the CTM1 format) to generate tiles which are cached... Find out more...

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