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HOW T0 DRAW UP A MAPPING PR0GRAMME T0 MEET
E Rate of progress to aim at
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000 Etat Major accuracy accurate aerial photogrammetry aerial photographs aerial triangulation Africa air photographs aircraft altitude angles Areas covered astronomical base maps basic map bench mark Bonne projection Cadastral Cadastral Service camera cartogra cartographical cartographical programmes charts co-ordinates colour completion contours cost coverage derived map detail documents drawing ellipsoid equipment error focal length French Geodesy geoid grid height Institut Geographique National large number large scale maps large-scale larger levelling network map of France map substitute map-making maps showing measurement meridians method metric system Metropolitan France millimetre minor control framework navigation obtained overlap overseas territories photogrammetry photographic cover planimetric plans plates plotting machines points Poivilliers Model possible preparation printed problems projection system purpose topographical maps regions regular map regular surveys scale maps scale surveys sheet lines slotted template small scale special maps staff stereopreparation stereoscopic strips surface surveyors Table taken technical tion toises toponymy users vertical