Created
March 10, 2016 21:54
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Custom British National Grid projection
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| let proj4Str = "+proj=tmerc +lat_0=49 +lon_0=-2 +k=0.9996012717 +x_0=400000 +y_0=-100000 +ellps=airy +units=m +no_defs" | |
| let coordSys = MaplyProj4CoordSystem(string: proj4Str) | |
| var bbox = MaplyBoundingBox() | |
| bbox.ll.x = 1393.0196 | |
| bbox.ll.y = 12494.9764 | |
| bbox.ur.x = 671196.3657 | |
| bbox.ur.y = 1230275.0454 | |
| coordSys.setBounds(bbox) |
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