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FAQ

How do I create a point at the tangent location between a line and circle in XyzPilot?

Use Point/Tanto,L,C. The line must already be tangent to the circle. The tangent point is where the line touches the circle.

Full Answer

Use Point/Tanto,L,C. The line must already be tangent to the circle for a tangent point to exist. The tangent point is the point on the circle circumference where the line touches — the radius at this point is perpendicular to the line.

XyzPilot Example

L0 = Horizontal line at Y=75
C0 = Centre (50,50), radius 25
dist(C0 centre, L0) = |75-50| = 25 = radius  [tangent]

Point/Tanto, L0, C0, 0
→ P13 = (50, 75)  [tangent point at top of circle]

Verification:
  dist(C0 centre, P13) = dist((50,50),(50,75)) = 25 = radius

Relevant Operators

Point/Tanto,L,C

Tangent Point Line Circle

Full operator reference.

Point/Tanto,C,C

Tangent Point Circle Circle

Tangent point between two circles.

Tangent from Point to Circle

Creates a tangent line from a point.

Also See

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