CODEWITHSUNDEEP
gisopenlayers-3
sourabh dev
sourabh dev

Reputation: 27

How to convert extent from EPSG 3857 to EPSG 26331

I am trying to convert extent which is in 3857 projection into 26331 projection in OpenLayers by ol.proj.transformExtent(map.getView().calculateExtent(map.getSize()),'EPSG:3857','EPSG:26331')

Upvotes: 0

Views: 385

Answers (1)

Mike
Mike

Reputation: 17907

You will first need to include the proj4js library

<script src="https://cdnjs.cloudflare.com/ajax/libs/proj4js/2.6.2/proj4.js"></script>

Then the EPSG:26331 proj4js definition from https://epsg.io/26331

proj4.defs("EPSG:26331","+proj=utm +zone=31 +ellps=clrk80 +towgs84=-92,-93,122,0,0,0,0 +units=m +no_defs");
ol.proj.proj4.register(proj4);  // if you are using OpenLayers 5 or 6

var transformedExtent = ol.proj.transformExtent(map.getView().calculateExtent(map.getSize()),'EPSG:3857','EPSG:26331');

Upvotes: 1

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