CODEWITHSUNDEEP
openlayers-3geojsonprojection
mysiar
mysiar

Reputation: 484

OpenLayers GeoJson reprojection

I hot stack with reprojection of GeoJson
I have GeoJson object loaded by ajax from server
Object has CRS set to EPSG:2180
I want to overlay it on OpenStreet Map that has CRS EPSG:3857

var buildingsFeatures = (new ol.format.GeoJSON()).readFeatures($buildings, {
        dataProjection: 'EPSG:2180',
        featureProjection: 'EPSG:3857'
    });

$building is GeoJson FeatureCollection object and above code is as per OpenLayers documentation but coordinates are not changed.

I hit a wall with it :(

Upvotes: 1

Views: 223

Answers (1)

mysiar
mysiar

Reputation: 484

Things to do to make it working:

proj4.defs([ [ 'EPSG:2180', '+proj=tmerc +lat_0=0 +lon_0=19 +k=0.9993 +x_0=500000 +y_0=-5300000 +ellps=GRS80 +units=m +no_defs' ] ]);

and that's all.

Upvotes: 0

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