Scales a line from its midpoint
const l = { a: {x:50, y:50}, b: {x: 100, y: 90}}const l2 = Lines.scaleFromMidpoint(l, 0.5); Copy
const l = { a: {x:50, y:50}, b: {x: 100, y: 90}}const l2 = Lines.scaleFromMidpoint(l, 0.5);
Scales a line from its midpoint