通过起点、起点方向和终点在文档中添加一个圆弧曲线。
rhinoscriptsyntax.AddArcPtTanPt (start, direction, end)
rhinoscript.curve.AddArcPtTanPt (start, direction, end)
start |
必须参数。圆弧起点。 |
direction |
必须参数。圆弧在 起点位置的方向。 |
end |
必须参数。圆弧终点。 |
Guid |
执行成功，返回新物件的ID。 |
None |
如果执行不成功或出错，返回空值。 |
import rhinoscriptsyntax as rs
pick = rs.GetCurveObject("Select curve to extend")
point = rs.GetPoint("End of extension")
domain = rs.CurveDomain(pick[0])
if abs(pick[4]-domain[0]) < abs(pick[4]-domain[1]):
origin = rs.CurveStartPoint(pick[0])
tangent = rs.VectorReverse(rs.CurveTangent(pick[0], domain[0]))
else:
origin = rs.CurveEndPoint(pick[0])
tangent = rs.CurveTangent(pick[0], domain[1])
rs.AddArcPtTanPt(origin, tangent, point)