通过三点

Synopsis

obj = CIRCLE/point1,point2,point3

Description

Creates a circle thru three previously defined points. The points are used to calculate the plane of the arc.

Parameters

Parameter

Description

point1,point2,point3

Three previously defined points which the arc passes through. The arc is constructed in a counterclockwise direction (with respect to the WCS Z-axis) from point1 (start) to point 3 (end). The second point, point 2, may lie on either the constructed or the non-constructed portion of the arc. If the three points are collinear an error message is displayed.

Parameter	Description
point1,point2,point3	Three previously defined points which the arc passes through. The arc is constructed in a counterclockwise direction (with respect to the WCS Z-axis) from point1 (start) to point 3 (end). The second point, point 2, may lie on either the constructed or the non-constructed portion of the arc. If the three points are collinear an error message is displayed.