▁the ▁information ▁obtained ▁during ▁the ▁Mag ellan - El cano ▁trip ▁around ▁the ▁world . ▁Di ogo ' s ▁map ▁del ine ates ▁very ▁precisely ▁the ▁coast s ▁of ▁Central ▁and ▁South ▁America . ▁The ▁map ▁shows , ▁for ▁the ▁first ▁time , ▁the ▁real ▁extension ▁of ▁the ▁Pacific ▁Ocean . ▁It ▁also ▁shows , ▁for ▁the ▁first ▁time , ▁the ▁North ▁American ▁coast ▁as ▁a ▁continuous ▁one ▁( pro bably ▁influenced ▁by ▁the ▁Est eb an ▁Gó mez ' s ▁expl oration ▁in ▁ 1 5 2 5 ). ▁It ▁also ▁shows ▁the ▁dem arc ation ▁of ▁the ▁Tre aty ▁of ▁T ord es illas . ▁ ▁Two ▁prominent ▁cosm ograph ers ▁( as ▁map m akers ▁were ▁then ▁known ) ▁of ▁the ▁House ▁of ▁Trade ▁were ▁Al onso ▁de ▁Santa ▁Cruz ▁and ▁Juan ▁López ▁de ▁Vel as co , ▁who ▁directed ▁map making ▁under ▁Philip ▁II , ▁without ▁ever ▁going ▁to ▁the ▁New ▁World . ▁Their ▁maps ▁were ▁based ▁on ▁information ▁they ▁received ▁from ▁returning ▁navig ators . ▁Using ▁repeat able ▁principles ▁that ▁under pin ▁map making , ▁their ▁map ▁making ▁techniques ▁could ▁be ▁employed ▁anywhere . ▁ ▁Philip ▁II ▁sought ▁extensive ▁information ▁about ▁his ▁over se as ▁emp ire , ▁both ▁in ▁written ▁text ual ▁form ▁and ▁in ▁the ▁production ▁of ▁maps . ▁ ▁German ▁cart ography ▁▁▁ 1 5 th ▁century : ▁The ▁German ▁mon k ▁Nicholas ▁German us ▁wrote ▁a ▁pione ering ▁Cos m ograph ia . ▁He ▁added ▁the ▁first ▁new ▁maps ▁to ▁P to le my