[OpenLayers-Dev] Muliple projections

[David Cordner]

Hi

I am fairly new to GIS and very new to OpenLayers so appreciate any
advice you can give.

 

I am going to be creating an app which will have a OpenStreetMap
BaseLayer and I'll then be dynamically loading vector layers (coloured
government boundaries). The vector layer will be need to use projection
EPSG:27700. 

 

I'm not 100% sure how projections work, do I need to use the same
projection on each layer and if so how do I do this?

 

Many Thanks

 

Dave

 

 

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