[求助]在一个循环中再次打开图形出错
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[求助]在一个循环中再次打开图形出错
想做个排除同心圆的函数,但调试不行,红色处出错,不知该如何写,大家帮帮忙吧,谢谢. public static objectidcollection del_concentric_circle(objectid[] ids) { database db = hostapplicationservices.workingdatabase; objectidcollection objids = new objectidcollection(); point3dcollection points = new point3dcollection(); if(ids == null) return objids = null; using(transaction trans = db.transactionmanager.startopenclosetransaction()) { for(int i = 0; i < ids.length; i++) { circle ent = (circle)trans.getobject(ids, openmode.forwrite); if(i == 0) { points.add(ent.center); objids.add(ids); } else { point3d point = ent.center; int n = points.indexof(point); if(n != -1) { objectid cirid = objids[n]; circle cent = (circle)trans.getobject(cirid, openmode.forread);//到这里就出错了,如何才能再次得到图形 if(cent.diameter < ent.diameter)objids[n] = ids; } else { objids.add(ids); points.add(point); } } } trans.commit(); } return objids; }
得到木头的帮助,已解决问题,把开始次的写打开改为读打开就ok了.