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FAQ

How do I create a common tangent line to two circles in XyzPilot?

Use Line/Tanto,C,C with a direction selector. Up to four tangent lines exist between two circles — external and internal.

Full Answer

Use Line/Tanto,C,C. Between two non-overlapping circles, up to four common tangent lines exist: two external (do not cross between circles) and two internal (cross between circles).

XyzPilot Example

C0 = Centre (0,0), radius 15 C1 = Centre (80,0), radius 15 Line/YLarge, Tanto, C0, Tanto, C1 → L0: upper external tangent (Y=+15) Line/YSmall, Tanto, C0, Tanto, C1 → L1: lower external tangent (Y=-15) Line/XLarge, Tanto, C0, Tanto, C1 → L2: right-crossing internal tangent

Relevant Operators

Line/Tanto,C,C

Common Tangent to Two Circles

Full operator reference.
Line/P,Tanto,C

Tangent from Point to Circle

Tangent from a point to a circle.
Point/Tanto,C,C

Tangent Point Circle Circle

Creates a point at the tangent location.

Also See

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