arcgis api for flex求线段的起点,终点和中点
发布时间:2020-12-15 04:57:55 所属栏目:百科 来源:网络整理
导读:求线段的中点: 先获取Polyline最中间的path,然后再得到这个path的中间点作为整个Polyline的中点 private function getCenter(pl:Polyline):MapPoint{ var pathCount:Number=pl.paths.length; var pathIndex:int=int((pathCount / 2) - 1); var midPath:Arr
求线段的中点:
先获取Polyline最中间的path,然后再得到这个path的中间点作为整个Polyline的中点 private function getCenter(pl:Polyline):MapPoint{ var pathCount:Number=pl.paths.length; var pathIndex:int=int((pathCount / 2) - 1); var midPath:Array=pl.paths[pathIndex]; var ptCount:Number=midPath.length; var ptIndex:int=int((ptCount / 2) - 1); var pt:MapPoint=pl.getPoint(pathIndex,ptIndex); return pt; } 求线段的起点和终点: var xx:int=LuduanList.selectedIndex; var myGraphic:Graphic=GraphicArr[xx]; var l:Polyline=myGraphic.geometry as Polyline; var goldPath:Array=l.paths[l.paths.length-1]; var spt:MapPoint=l.getPoint(0,0); var mpt:MapPoint=l.getPoint(l.paths.length-1,goldPath.length-1); (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |