line-offset
Intelligently offset lines. Useful for a variety of problems, mainly map symbology, label placement, and drawing.
example
var line = x: 0 y: 10 x: 0 y: 20 x: 10 y: 20 x: 10 y: 27 ; var offsetLine = offset;
API
offset.offset(line, offset)
Offset a line by a certain distance. By default, expects points on the line
to be in { x: 0, y: 0 }
form. Offset is a required parameter and must
be numeric.
Cheers
Mostly a port of includes/mapnik/offset_converter.hpp
from the Mapnik project,
though unlike it, a sync interface rather than a stream.