DRAW Reference Manual
Point and Line Construction : Tangent Lines
Tangent Lines
The TANLINE command can be used to draw a tangent line between any two ARC or CIRC elements. Provided that the current element is a STRA, the syntax to create a tangent line is, for example:
TANLINE @ @
The example illustrates various uses of the tangent line facility. Notice how (right-most illustration) the tangent line can lie on the complement of an ARC.
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