Arc/Tanto,L,C,R
Arc Tangent to Line and Circle
Creates an arc tangent to a line and an existing circle with a specified radius.
What It Does
The Arc/Tanto,L,C,R operator creates an arc of specified radius simultaneously tangent to a line and an existing circle. The arc blends smoothly between the line and circle.
Syntax
Arc/Tanto, L, C, R, XLarge|XSmall|YLarge|YSmall, IN|OUT
Quick Input
L: [line]
C: [circle]
R: [radius]
Dir: ○ XL ○ XS ● YL ○ YS
Tan: ● OUT ○ IN
Direction Selector
| Selector | Meaning |
|---|---|
OUT | Arc externally tangent to C |
IN | Arc internally tangent to C |
Worked Examples
L0=horizontal Y=0, C0=centre(50,30) r=15, R=10
Arc/Tanto, L0, C0, R=10, YLarge, OUT
→ A0: arc tangent to L0 at start, tangent to C0 at end
Analytic Rule
Arc centre at distance R from L and R+r_C (OUT) from C.
Arc sweeps from tangent point on L to tangent point on C.
Result: Exact analytic arc.
FAQ
How is this different from Arc/Fillet,L,L?
Arc/Fillet,L,L blends two lines. Arc/Tanto,L,C,R blends a line and a circle.
What does the arc connect?
Start at tangent point on line, end at tangent point on circle.