Hi every body,

I write it in python, it shows any error. but draw any shape in rhino.

many thanks

marjan

snow.py (1.7 KB)

```
import rhinoscriptsyntax as rs
import Rhino
def snowflake_curve(position, direction, recursion_level):
if (recursion_level== 0):
return [position + direction]
else:
up = rs.VectorRotate(direction/3.0, -60.0, [0,0,1])
down = rs.VectorRotate(direction/3.0, 60.0, [0,0,1])
forward = direction/3.0
point_list = []
point_list.extend (snowflake_curve (position, forward, recursion_level-1))
point_list.extend (snowflake_curve (position + forward, up, recursion_level-1))
point_list.extend (snowflake_curve (position + forward + up, down, recursion_level-1))
point_list.extend (snowflake_curve (position + forward + up + down, forward, recursion_level-1))
return point_list
def rs_pointlist (points, depth):
for i,p in enumerate(points):
x = 300 + p.X
y = 300 + p.Y
z = depth
if i == 0:
rs.moveto(x,y,1)
recursion_level= 3
snowflake_size = 200
position = Rhino.Geometry.Point3d (-50,-29,0)
direction = Rhino.Geometry.Vector3d (snowflake_size,0,0)
up = rs.VectorRotate(direction, -60.0, [0,0,1])
down = rs.VectorRotate(direction, 60.0, [0,0,1])
forward = direction
backward = -direction
point_list = []
point_list.extend (snowflake_curve (position, up, recursion_level))
point_list.extend (snowflake_curve (position + up, down, recursion_level))
point_list.extend (snowflake_curve (position + up + down, backward, recursion_level))
point_list.extend ([point_list[0]]) # we have to close the curve be adding the first point at the end
#rs.AddCurve (point_list, degree=1)
```