到目标图层 m_objTrackFt[i] = m_traceLayer.AddFeature((LPDISPATCH)ft); } else { //更新目标轨迹对象 m_objTrackFt[i].GetParts().Item(1).AddXY(sGISPoint[i][0].x, sGISPoint[i][0].y); m_objTrackFt[i].Update(); } sGISPoint[i][1] = sGISPoint[i][0]; } m_traceLayer.EndAccess(); m_objLayer.EndAccess();