通过的曲面求值运算器。
rhinoscriptsyntax.SurfaceEvaluate ( surface_id, parameter, derivative)
rhinoscript.surface.SurfaceEvaluate ( surface_id, parameter, derivative)
surface_id |
必须参数。字符串或 Guid。物件的 ID 。 |
parameter |
必须参数。元组。UV参数值构成的元组。 |
derivative |
必须参数。数字。要计算导数的数量。 |
列表 |
执行成功，返回一个长度为(derivative+1)*(derivative+2)/2 的列表。元素分别是：
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None |
如果执行不成功或出错，返回空值。 |
import rhinoscriptsyntax as rs
def TestSurfaceEvaluate():
srf = rs.GetObject("Select surface to evaluate", rs.filter.surface, True)
if srf is None: return
point = rs.GetPointOnSurface(srf, "Point to evaluate")
if point is None: return
der = rs.GetInteger("Number of derivatives to evaluate", 1, 1)
if der is None: return
uv = rs.SurfaceClosestPoint(srf, point)
res = rs.SurfaceEvaluate(srf, uv, der)
if res is None:
print "Failed to evaluate surface."
return
for i,r in enumerate(res):
print i, " = ", r
TestSurfaceEvaluate()