Map of a Caribbean Island

Saint Martin Island

Done with OSM Tiles

Zoom Level 12

(OSM = Open Street Map)

Home > RefInfo menu > Maps RefInfo menu >

OSM (Open Street Maps) MENU page >

This OSM Map of Saint Martin page

Reference:
http://wiki.openstreetmap.org/wiki/ Slippy_map_tilenames#Zoom_levels

Brief overview:

• OSM tiles are 256x256 pixel PNG files.

• Filename (URL) format is http://tile.openstreetmap.org/zoom/x/y.png
  where
  zoom=zoom-level-integer (from 0 to 19),
  x=longitude-locator-integer (non-negative column number),
  y=latitude-locator-integer (non-negative row number).

• In the link above, see sample code to calculate x and y for a given zoom-level and a given latitude and longitude.

The following Saint Martin Island map
(with Anguilla island to the north) is done
with map tiles at OSM zoom level 12.

Approximate latitude,longitude of Saint Martin:
18.0666, -63.05 degrees

Each OSM tile is a 256x256 PNG file.

Each zoom-level-12 tile is one image out of
2^12 x 2^12 = 4096 x 4096 = 16,777,216 images ~ 16 million images
which are used by OpenStreetMap to cover most of the Earth.

These zoom-level-12 tiles go from
x-numbers 1328 to 1332. (5 columns)

These zoom-level-12 tiles go from
y-numbers 1836 to 1840. (5 rows)

Total: 5 x 5 = 25 tiles

Image width: 5 x 256 = 1,280 pixels
Image height: 5 x 256 = 1,280 pixels

These tiles are fetched from the
OSM server when you (re)load this page.

So these tiles form an image using
the latest versions of the OSM tiles.

This link provides the map in a
*SINGLE* 1280x1280 pixel PNG file
--- created from OSM tiles
as they existed on 12 Jan 2019.

After you access that link,
you can right-click on the image and
use a popup menu option such as
'Save Image As ...' to save the single
image file to your local file system.

This image file was created with a Tcl-Tk 'tkGooies' script
in the 'MAPtools' group of 'tkGooie' scripts at the
Freedom Environment software web site.

Here is a link to an OSM (openstreetmap.org) 'slippy map'
for Saint Martin (Wikipedia link) --- initially at zoom-level 12 and
centered at about latitude and longitude 18.0666, -63.0500,
which is near the center of the island.

< Go to Top of this page. >

Page was created 2019 Jan 11.

Page was changed 2019 Feb 10.
(HTML changes due to reorg of OSMmaps.)