Function uPlot

src/uPlot.js:291–3492

(opts, data, then)

}

export default function uPlot(opts, data, then) {
	const self = {
		mode: ifNull(opts.mode, 1),
	};

	const mode = self.mode;

	function getHPos(val, scale, dim, off) {
		let pct = scale.valToPct(val);
		return off + dim * (scale.dir == -1 ? (1 - pct) : pct);
	}

	function getVPos(val, scale, dim, off) {
		let pct = scale.valToPct(val);
		return off + dim * (scale.dir == -1 ? pct : (1 - pct));
	}

	function getPos(val, scale, dim, off) {
		return scale.ori == 0 ? getHPos(val, scale, dim, off) : getVPos(val, scale, dim, off);
	}

	self.valToPosH = getHPos;
	self.valToPosV = getVPos;

	let ready = false;
	self.status = 0;

	const root = self.root = placeDiv(UPLOT);

	if (opts.id != null)
		root.id = opts.id;

	addClass(root, opts.class);

	if (opts.title) {
		let title = placeDiv(TITLE, root);
		title.textContent = opts.title;
	}

	const can = placeTag("canvas");
	const ctx = self.ctx = can.getContext("2d");

	const wrap = placeDiv(WRAP, root);

	on("click", wrap, e => {
		if (e.target === over) {
			let didDrag = mouseLeft1 != mouseLeft0 || mouseTop1 != mouseTop0;
			didDrag && drag.click(self, e);
		}
	}, true);

	const under = self.under = placeDiv(UNDER, wrap);
	wrap.appendChild(can);
	const over = self.over = placeDiv(OVER, wrap);

	opts = copy(opts);

	const pxAlign = +ifNull(opts.pxAlign, 1);