Sha256: 78d83d3b84702df976e76166ec13f719e3ec47fded5778545ab8d7c008a25dcc
Contents?: true
Size: 881 Bytes
Versions: 9
Compression:
Stored size: 881 Bytes
Contents
/*
* Extends L.Polygon to be able to manually detect clicks on Canvas-rendered polygons.
*/
L.Polygon.include(!L.Path.CANVAS ? {} : {
_containsPoint: function (p) {
var inside = false,
part, p1, p2,
i, j, k,
len, len2;
// TODO optimization: check if within bounds first
if (L.Polyline.prototype._containsPoint.call(this, p, true)) {
// click on polygon border
return true;
}
// ray casting algorithm for detecting if point is in polygon
for (i = 0, len = this._parts.length; i < len; i++) {
part = this._parts[i];
for (j = 0, len2 = part.length, k = len2 - 1; j < len2; k = j++) {
p1 = part[j];
p2 = part[k];
if (((p1.y > p.y) !== (p2.y > p.y)) &&
(p.x < (p2.x - p1.x) * (p.y - p1.y) / (p2.y - p1.y) + p1.x)) {
inside = !inside;
}
}
}
return inside;
}
});
Version data entries
9 entries across 9 versions & 1 rubygems