COG (Cloud Optimized GeoTIFF) ir GeoTIFF paplašinājums mākoņa servisiem. Vietējam darbam labāks ir parastais GeoTIFF.

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GeoTIFF (Georeferenced TIFF)

Open Beta

.tif · image/tiff

GeoTIFF ir rastra formāts ar iegultu ģeoreferencēšanu. Karte tiek saglabāta kā TIFF attēls ar koordinātām, projekciju un metadatiem. De facto standarts ģeoreferencētām rastra kartēm.

Eksportēt GeoTIFF tūlīt ✨ Atklātā beta versija — bezmaksas, bez ierobežojumiem

Galvenās iespējas

✓Iegultas koordinātas (WGS84 / UTM)

✓Projekcijas atbalsts

✓Augsta izšķirtspēja drukāšanai

✓Universāla GIS saderība

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

Par GeoTIFF formātu

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.

Kura programma atver GeoTIFF failus

Tālāk norādītās programmas un lietotnes var atvērt, rediģēt un strādāt ar GeoTIFF (Georeferenced TIFF) (.tif) failiem, kas eksportēti no 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.

Kas izmanto GeoTIFF kartes

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Ģeoreferencētas kartes

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

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GIS analīze

A raster underlay beneath your own vector layers and calculations.

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Satelītattēlu pārklājums

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

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Tālizpēte

Material for interpretation and comparison with survey data.

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Karšu drukāšana

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

Kā eksportēt GeoTIFF

Atlasiet apgabalu

Uzzīmējiet taisnstūri vai daudzstūri interaktīvajā kartē vietnē osm2cdr.ru

Izvēlieties GeoTIFF

Atlasiet GeoTIFF (Georeferenced TIFF) no 127 pieejamo eksporta formātu saraksta

Eksportēt

Noklikšķiniet uz Eksportēt un saņemiet savu .tif failu 1–5 minūtēs

Lejupielādēt

Lejupielādējiet gatavo GeoTIFF failu un atveriet to programmā QGIS

Kā atvērt pēc eksporta

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.

Populāras kartes formātā GeoTIFF

Free

Eksportējiet kartes formātā GeoTIFF (Georeferenced TIFF)

Lejupielādējiet profesionālas GeoTIFF kartes no OpenStreetMap. Tūlītēja ģenerēšana, jebkurš apgabals.

Bezmaksas / eksports

Eksportēt GeoTIFF tūlīt →

Biežāk uzdotie jautājumi

Kāda ir atšķirība starp GeoTIFF un parasto TIFF? ▼

Vai GeoTIFF var atvērt programmā QGIS? ▼

GeoTIFF vai COG? ▼

At what resolution does the raster arrive? ▼

What compression is the file packed with? ▼

Salīdziniet ar citiem formātiem

⚖ GEOTIFF vs COG ⚖ PNG vs GEOTIFF

Convert to GeoTIFF and back

⇆ CSV → GeoTIFF ⇆ DWG → GeoTIFF ⇆ DXF → GeoTIFF ⇆ GeoJSON → GeoTIFF ⇆ GeoPackage → GeoTIFF ⇆ GeoTIFF → AI ⇆ GeoTIFF → DWG ⇆ GeoTIFF → DXF

GeoTIFF guides and tutorials

📖 OpenStreetMap for Academic Research

Saistītie formāti

Bieži eksportē kopā

GeoTIFF+📷PNG 🛰Cloud-Optimized GeoTIFF 🖼TIFF

guide