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Geo-spatial sypozium, Cluj, 19-20 April, 2013. Geo-reference of historical maps. dr. Tim ár Gábor Dept. of Geophysics and Space Science Eötvös University, Budapest, Hungary. Eötvös Loránd Tudományegyetem Földrajz- és Földtudományi Intézet 1117 Budapest, Pázmány Péter sétány 1/A. Overview:. - PowerPoint PPT Presentation
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Geo-reference of historical mapsGeo-reference of historical mapsGeo-reference of historical mapsGeo-reference of historical maps
dr. Timár GáborDept. of Geophysics and Space ScienceEötvös University, Budapest, Hungary
Eötvös Loránd TudományegyetemFöldrajz- és Földtudományi Intézet
1117 Budapest, Pázmány Péter sétány 1/A
Geo-spatial sypozium, Cluj, 19-20 April, 2013
Overview:
1. Geo-reference of historical regional maps
2. Guess of the projection and projection parameters
3. Geo-reference using latitude and longitude lines, then the local projection
4. Export to Google Earth
5. A real difficult example: the Lazarus map of 1528
Try this: an old map of the historical Hungary
Goetz & Probst, 1804
Try this: an old map of the historical Hungary
Meridians: lines to a common pole; prime meridian: Ferro
Try this: an old map of the historical Hungary
Parallels: mostly invisible but assumed to be concentric circles
Try this: an old map of the historical Hungary
Try this: an old map of the historical Hungary
Try this: an old map of the historical Hungary
Standard parallel: from the meridian angles of the map
Central meridian: the vertical one
Origin latitude: not important
Try this: an old map of the historical Hungary
Projection!GCPs should be converted into the real map projection
Try this: an old map of the historical Hungary
Google Earth needs to reproject the map to WGS84/GEOGRAPHIC system...
Try this: an old map of the historical Hungary
Google Earth needs to reproject the map to WGS84/GEOGRAPHIC system...
and...
Try this: an old map of the historical Hungary
A new blog to be launched: http://oldmapsingis.blogspot.com
A much more harder target: Lazarus (1528)
600 GCPs from all around the map
„Brute force” way
Linear fit to UTM33
„Brute force” way
Quadratic fit to UTM33
„Brute force” way
Cubic fit to UTM33
Ptolemian point list
Ptolemian projection... To be defined in GIS
The geo-referred map... Really?
Latitude-longitude grid
Coastlines and rivers
Geo-reference
How to choose the standard parallel in the Equidistant Conic (Ptolemian) projection: false selection (left), correct selection (right)
Thanks for the attention
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