diff --git a/hyperbolic/poincare/horocycle.py b/hyperbolic/poincare/horocycle.py
index 9d2d4ad..a2fb25f 100644
--- a/hyperbolic/poincare/horocycle.py
+++ b/hyperbolic/poincare/horocycle.py
@@ -4,6 +4,7 @@
 from ..euclid import Circle as ECircle
 from .util import radial_euclid_to_poincare, radial_poincare_to_euclid
 from . import point
+from .transform import Transform
 
 
 class Horocycle:
@@ -39,6 +40,13 @@ def from_closest_point(pt, surround_origin=False, cw=True):
         return Horocycle(
                 shape, closest_point=pt, surround_origin=surround_origin)
     @classmethod
+    def from_center_point(cls,center,pt,cw = True):
+        theta = math.atan2(center.y,center.x)
+        rot = Transform.rotation(rad=-theta)
+        rpt = rot.apply_to_point(pt)
+        d = (rpt.x**2 + rpt.y**2 - rpt.x)/(rpt.x - 1)
+        return cls.from_closest_point_e_polar(d,theta,cw = cw)
+    @classmethod
     def from_closest_point_h_polar(cls, hr, theta, cw=True):
         p = point.Point.from_h_polar(hr, theta)
         return cls.from_closest_point(p, surround_origin=hr<0, cw=cw)