Gmap.net绘制矩形 发表于 2017-07-25 Gmap.net鼠标拖动绘制矩形private GMapOverlay polygons = new GMapOverlay(“polygon”); //放置polygon的图层private GMapPolygon drawingPolygon = null; //正在画的polygonprivate List drawingPoints = new List(); //多边形的点集private GMapPolygon currentPolygon;mapControl.Overlays.add(polygons);