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Eugene Alvin Villar πŸ‡΅πŸ‡­

This map is the one that is now being championed by retired Supreme Court Justice #AntonioCarpio alongside the 1734 Pedro Murillo Velarde map to bolster the territorial claims of the #Philippines over Scarborough Shoal and the Kalayaan Islands.

The map was first published by the DireccΓ­on de HidrografΓ­a (Hydrography Directorate) of #Spain πŸ‡ͺπŸ‡Έ in 1875 and then republished by the #UnitedStates πŸ‡ΊπŸ‡Έ War Department in 1902 with annotated telegraph and cable lines.

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#Mapstodon #maps #cartography

Eugene Alvin Villar πŸ‡΅πŸ‡­

Processing this map took longer than I expected because it was divided into 10,710 tiles of 256Γ—256 pixels each. I had to write a JS script to fetch all of these tiles and stitch them into larger tiles of 7,680Γ—7,680-pixel images before combining then cropping them using GIMP into the final 22,860Γ—30,116-pixel behemoth. I ran into various memory limitations because Firefox and GIMP had trouble working with these huge images.

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