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The NYPL Map Warper is a tool for digitally aligning ("rectifying") historical maps from the NYPL's collections to match today's precise maps. Visitors can browse already rectified maps or assist the NYPL by aligning a map. Play the video above to tour the site and learn how to rectify a map yourself. Everyone is welcome to participate!
carto dynamique online
Signalisation de phénomènes météorologiques marquants.
Site de remontée et d'échanges d'information de l'IGN
Introduction au Workshop OpenLayers
Project Home | MapGuide Open Source