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中心点，与切线

Synopsis

obj = CIRCLE/CENTER,point,TANTO,line[,START,start angle, END,end angle]

Description

Creates a circle which is tangent to a specified line using a previously defined center point. The arc lies in the plane containing the center point and the line. You may also define start and end angles for the circle.

Parameters

Parameter	Description
CENTER	Minor word that indicates that the center of the circle is an existing point.
point	A previously defined point which establishes the center of the circle.
TANTO	Minor word that indicates that the circle is to be tangent to an existing object.
line	An existing line which the circle is to be tangent to.
START	The optional parameter START indicates that the starting angle for the arc is to be specified.
start angle	The starting angle of the arc as measured from the positive X axis of the work coordinate system.
END	The optional parameter END indicates that the ending angle for the arc is to be specified.
end angle	The ending angle of the arc as measured from the positive X axis of the work coordinate system.

NOTE: If the plane defined by the line and center point are not parallel to the WCS, the system ignores the start and end angles and creates a full circle.