Overview | Statement List | Example


通过点,平行/垂直的线

Synopsis

obj = LINE/point,[{PARLEL|PERPTO}],line

Description

Creates a line thru a previously defined point which is either parallel or perpendicular to a specified line. The line is created either parallel or perpendicular to the specified curve depending upon which minor word (PARLEL or PERPTO) is used.

Parameters

Parameter

Description

point

A previously defined point from which the perpendicular line starts or through which the parallel line runs.

PARLEL

Minor word that indicates that the new line is to be parallel to an existing line.

PERPTO

Minor word that indicates that the new line is to be perpendicular to an existing line.

line

An existing line to which the new line is parallel or perpendicular.

NOTE: If PARLEL is used the new line is the same length as the existing line if the projected point falls between the existing line endpoints. Otherwise, the end closest to the point is extended to the point.


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