面是否包含点的算法
摘要：from arcgis Javascript api：function polygonContainPoint(pt,polygon) {var rings = polygon.rings,ring, bresult = false,pt1, pt2, ringlength, j, i, indexrings, ringslength = rings.length;for (indexrings = 0; indexrings = pt.y || pt2[1] = pt.y) && (pt1[0] + (pt.y - pt1[1]) / (pt2[1] - pt1[1]) *
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posted @ 2013-08-07 10:38
