LEADER 01628oam 2200481I 450 001 9910706524703321 005 20171229134208.0 035 $a(CKB)5470000002457203 035 $a(OCoLC)1015200979 035 $a(OCoLC)995470000002457203 035 $a(EXLCZ)995470000002457203 100 $a20171211j201710 ua 0 101 0 $aeng 135 $aurmn||||||||| 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 10$aMap projection induced variations in locations of polygon geofence edges /$fPaula Neeley and Anthony Narkawicz 210 1$aHampton, Virginia :$cNational Aeronautics and Space Administration, Langley Research Center,$dOctober 2017. 215 $a1 online resource (20 pages) $ccolor illustrations 225 1 $aNASA/TM ;$v2017-219675 300 $a"October 2017." 320 $aIncludes bibliographical references (pages 17-18). 606 $aPolygons$2nasat 606 $aUnmanned aircraft systems$2nasat 606 $aFloating point arithmetic$2nasat 606 $aAlgorithms$2nasat 606 $aGeodesic lines$2nasat 615 7$aPolygons. 615 7$aUnmanned aircraft systems. 615 7$aFloating point arithmetic. 615 7$aAlgorithms. 615 7$aGeodesic lines. 700 $aNeeley$b Paula$01407587 702 $aNarkawicz$b Anthony Joseph$f1982- 712 02$aLangley Research Center, 801 0$bGPO 801 1$bGPO 801 2$bGPO 906 $aBOOK 912 $a9910706524703321 996 $aMap projection induced variations in locations of polygon geofence edges$93489442 997 $aUNINA