OCCCurve2d.normal_at
- OCCCurve2d.normal_at(t)
- Compute the normal of the curve at a parameter. - Parameters:
- tfloat
- The value of the curve parameter. 
 
- Returns:
- compas.geometry.Vector
- The corresponding normal vector. 
 
- Raises:
- ValueError
- If the parameter is not in the curve domain. 
 
 - See also - point_at(),- tangent_at(),- binormal_at(),- frame_at(),- curvature_at()