Download Østfold map in AVIF format
A map built from OpenStreetMap data, ready to download
Customize the map
Open this place's area in the constructor and adjust everything to your needs
Open in constructor →Map passport
What this map contains by default
This is how the map is built as-is — every setting can be changed in the constructor.
About AVIF
Map of Østfold in AVIF: 234 559 buildings, 10 677 km of roads, 6 625 points of interest, 41% green areas — in the WGS 84 coordinate system, units are meters.
Which layers are in the file
This file for the selected area contains:
- Roads
- Buildings
- Water
- Greenery
- Points of interest
Geometry by layer
- Roads — drawn as lines in pixels, no separate features
- Buildings — drawn as filled pixels, no separate features
- Water — drawn as filled pixels
- Greenery — drawn as filled pixels
- Points of interest — drawn as icons in pixels
What the file carries
The AVIF file for Østfold: layers are flattened into one picture: objects become pixels and cannot be selected separately, OpenStreetMap tags are not kept — geometry and styling remain.
File size
The expected size of the AVIF file for Østfold is about 22.6 MB; the exact size depends on the chosen layers and area.
Coordinate systems
WGS 84 (EPSG:4326), selectable in the wizard
Units
Meters (projected in the chosen coordinate system)
| Category | GIS |
| File extension | .avif |
| Tier | Open Beta |
How to use AVIF for Østfold
- A browser — recent versions of Chrome, Firefox, Edge and Safari open .avif with a double click; that is the fastest way to look at the result.
- A website — include the picture through a picture tag with a fallback in WebP or PNG, then old browsers and mail clients will show the map without a hitch.
- GIMP and ImageMagick — open and convert AVIF; magick map.avif map.png saves the day when the file has to go into a program without support for the format.
Programs that open AVIF
FAQ: AVIF for Østfold
Does AVIF keep map transparency?
Yes, when the order has the “No background (transparent)” box ticked: the alpha channel then reaches the file. Without that box the exporter flattens the image to RGB — that makes the file smaller.
Can I edit layers in AVIF?
No, AVIF is a raster image. Labels, roads and buildings are baked into pixels. For editable graphics choose SVG, PDF or DXF.
Why is AVIF slower to encode?
The AV1 encoder is several times heavier than JPEG and WebP. That is the cost of compactness; decoding is fast, so the format is ideal for static assets.
Where might AVIF fail to open?
In old browsers, in the standard image viewers of outdated systems, in some mail clients and CMSs. For such cases keep a fallback PNG or WebP nearby — on a website this is solved with the picture tag.
Can I raise the quality of the picture?
Yes, the encoding quality is adjustable: the higher it is, the larger the file. The default value is chosen so that the labels and thin lines of the map stay readable at a small weight.
