COG (Cloud Optimized GeoTIFF) je razširitev GeoTIFF za storitve v oblaku. Za lokalno delo je boljši običajni GeoTIFF.

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GeoTIFF (Georeferenced TIFF)

Open Beta

.tif · image/tiff

GeoTIFF je rastrski format z vgrajenim georeferenciranjem. Zemljevid se shrani kot slika TIFF s koordinatami, projekcijo in metapodatki. Dejanski standard za georeferencirane rastrske zemljevide.

Izvozi GeoTIFF zdaj ✨ Odprta beta — brezplačno, brez omejitev

Ključne značilnosti

✓Vgrajene koordinate (WGS84 / UTM)

✓Podpora projekcijam

✓Visoka ločljivost za tisk

✓Univerzalna združljivost z GIS

Example GeoTIFF export (central Moscow, 1x0.5 km) — Example: central Moscow, ~1×0.5 km, medium detail

O formatu GeoTIFF

GeoTIFF is an ordinary TIFF with coordinates written into its tags: where the top left corner lies, what the pixel size is and which coordinate system all of it is recorded in. A GIS program opens such a file and immediately puts the picture in its place on the ground — there is nothing to georeference by hand.

A raster map is needed where vectors are excessive or awkward: an underlay beneath your own layers, a print-ready original, an overlay on a satellite image, material for interpretation and for raster algorithms.

The file contains a map page drawn in the chosen style and saved as a georeferenced image. The default resolution is 300 DPI, that is print quality; the default sheet is A4 landscape. LZW compression is lossless, yet noticeably smaller than an uncompressed TIFF.

The default coordinate system is WGS84 (EPSG:4326); the georeferencing sits in the file's own tags, so there is no need to keep any companion files alongside it.

Kateri program odpre datoteke GeoTIFF

Naslednji programi in aplikacije lahko odprejo, urejajo in delajo z datotekami GeoTIFF (Georeferenced TIFF) (.tif), izvoženimi iz OSM2CDR:

🌎QGIS 🌎ArcGIS 🌐Google Earth Pro 💻GDAL 💻Global Mapper

Format specifications

Open standard
2D only
Lossless (no quality loss)
No attributes
Output: 1 file
GeoTIFF (OGC) with georeferencing tags. Single .tif file; default LZW compression. Standard for GIS raster.

Kdo uporablja zemljevide GeoTIFF

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Georeferencirani zemljevidi

A picture of the map that puts itself in the right place in any GIS.

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Analiza GIS

A raster underlay beneath your own vector layers and calculations.

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Prekrivanje satelitskih posnetkov

The map lands over the image in the same coordinates — you can see at once what changed and where.

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Daljinsko zaznavanje

Material for interpretation and comparison with survey data.

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Tisk zemljevidov

300 DPI — ready print quality for a poster or a report appendix.

Kako izvoziti GeoTIFF

Izberite območje

Narišite pravokotnik ali poligon na interaktivnem zemljevidu na osm2cdr.ru

Izberite GeoTIFF

Izberite GeoTIFF (Georeferenced TIFF) s seznama 127 razpoložljivih izvoznih formatov

Izvoz

Kliknite Izvozi in prejmite datoteko .tif v 1–5 minutah

Prenos

Prenesite pripravljeno datoteko GeoTIFF in jo odprite v programu QGIS

Kako odpreti po izvozu

QGIS (free) — drag the .tif into the program window: the layer lands in place and the projection is detected automatically.
ArcGIS and Global Mapper — Add Data; the raster attaches as an underlay beneath your vector layers.
Google Earth Pro — File → Import, choose the GeoTIFF: the map lands on the globe (for heavy files the program will offer to reduce the resolution).
GDAL — gdalinfo map.tif shows the georeferencing and the projection, and gdalwarp -t_srs EPSG:3857 map.tif out.tif reprojects the raster for a web map.
Printing — the file is calculated for 300 DPI and goes to print as is; in Photoshop or GIMP do not change the pixel dimensions, otherwise you will lose both quality and the match to the scale.

Priljubljeni zemljevidi v formatu GeoTIFF

Brezplačno

Pridobite izvoze zemljevidov GeoTIFF (Georeferenced TIFF)

Prenesite profesionalne zemljevide GeoTIFF iz OpenStreetMap. Takojšnje ustvarjanje, poljubno območje.

Brezplačno / izvoz

Izvozi GeoTIFF zdaj →

Pogosto zastavljena vprašanja

Kakšna je razlika med GeoTIFF in običajnim TIFF? ▼

Ali lahko GeoTIFF odprem v programu QGIS? ▼

GeoTIFF ali COG? ▼

At what resolution does the raster arrive? ▼

What compression is the file packed with? ▼

Primerjava z drugimi formati

⚖ GEOTIFF vs COG ⚖ PNG vs GEOTIFF

Sorodni formati

Pogosto izvoženo skupaj

GeoTIFF+📷PNG 🛰Cloud-Optimized GeoTIFF 🖼TIFF

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