Function ptDist

src/traces/scatter/line_points.js:122–126

(pt1, pt2)

    }

    function ptDist(pt1, pt2) {
        var dx = pt1[0] - pt2[0];
        var dy = pt1[1] - pt2[1];
        return Math.sqrt(dx * dx + dy * dy);
    }

    // last bit of filtering: clip paths that are VERY far off-screen
    // so we don't get near the browser's hard limit (+/- 2^29 px in Chrome and FF)