#
# Use sdxf to write path to a DXF file
#

# agm/NYCR 2008

import sdxf
import rep
from math import degrees

def writeToDxf(filename,path):
    d = sdxf.Drawing()
    def pt(point):
        return (point.x,point.y,0)
    for item in path.segments:
        if isinstance(item,rep.Path.Line):
            d.append(sdxf.Line([pt(item.a),pt(item.b)]))
        elif isinstance(item,rep.Path.Arc):
            d.append(sdxf.Arc(pt(item.where),item.radius,degrees(item.start),degrees(item.end)))
    d.saveas(filename)