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Map of Europe in EEA's projection

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Aallardw
Last edited Jul 13, 2016
Created on Jul 12, 2016

A map of Europe rendered in the EEA’s ETRS 1989 LAEA projection, using D3 v4’s `d3.geoTransverseMercator` projection with a center at 10°E, 52°N and a rotation of -10° to align the central meridian. Country outlines are drawn as SVG paths via `d3.geoPath`, with data from a TopoJSON `world.json` file processed using `topojson.feature`. The map is styled with a steelblue fill and white stroke, and the projection is manually translated to fit the 500×500 canvas.

AI-generated description

For maps the EEA uses the ETRS_1989_LAEA_52N_10E coordinate system. This example shows how to get a similair projection with lat-lon data. The key parameters to get the right projection are:

The transverse Mercator projection
d3.geoTransverseMercator()

The center of the projection is on 10E 52N
projection.center([10,52])

A rotation around the normal axis to align the center meridian north
projection.rotate([-10,0,0])

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