Ejemplo n.º 1
0
def dtf_darcircle(point, radius_miles, max_segments=12):
    radius = distances.feet(radius_miles)
    if max_segments <= 0:
        raise Exception("max_segments must be between 1 and 360")
    thetas = [math.radians(a) for a in range(0, 360, 360/max_segments)]
    thetas.append(math.radians(360))
    
    pts = []
    for t in thetas:
        pts.append(distances.Point(point.x + radius*math.cos(t),
                                   point.y + radius*math.sin(t)))

    return dtf_polygon(pts)
Ejemplo n.º 2
0
 def gen_darcircles(self, dtfname, radius_miles, max_segments=12):
     radius = distances.feet(radius_miles)
     if max_segments <= 0:
         raise Exception("max_segments must be between 1 and 360")
     thetas = [math.radians(a) for a in range(0, 360, 360/max_segments)]
     thetas.append(math.radians(360))
     f = open(dtfname, "w")
     for p in self.points:
         pts = []
         for t in thetas:
             pts.append(distances.Point(p.x + radius*math.cos(t),
                                        p.y + radius*math.sin(t)))
         
         f.write("# Center %s\n" % p)
         f.write(dtf.dtf_polygon(pts))