Line

Line(key, opts) -> handle

const support = Line("support", {
  x1: 0,  y1: 42000,
  x2: 50, y2: 42000,
  color: "#22c55eFF",
  width: 2,
  style: "solid",
  label: "Support",
});

onBar(() => {
  // Extend the line to the current bar
  support.set({ x2: ctx.i() });
});

Line("trend", { ..., style: linestyle.dashed });

const line = Line("sr", { x1: 0, y1: 42000, x2: 10, y2: 42000, color: "#22c55eFF" });

// Mutate in place
line.set({ color: "#ef4444FF", y1: 41800, y2: 41800 });

// Clone to a new key
const copy = line.clone("sr-copy");

// Delete
line.delete();

// Draw an arrow.right line from each new pivot high
onBar(() => {
  const ph = ta.pivothigh(ctx.high, 5, 5);
  if (na(ph)) return;

  const pivotBar = ctx.i() - 5; // pivot high is 5 bars in the past
  Line(`ph_${pivotBar}`, {
    x1: pivotBar, y1: ph,
    x2: ctx.i(),  y2: ph,
    color: "#ef4444FF",
    style: "arrow.right",
    label: str.format("{}", math.round(ph, 1)),
  });
});