I have an issue where I have a large amount of data stored in EPSG:27700 (OSGB) that needs to be mapped. I have already developed a mapper to do this using OpenLayers and for a base layer, OpenSpace from the UK Ordinance Survey (http://www.ordnancesurvey.co.uk/oswebsite/web-services/os-openspace/api/index.html). However this baselayer is projected in 27700, so I've not had an issue up until this point as all the projections (from mapserver and the base layer) were the same.
There is now a requirement to zoom further into the layers than the free Ordinance Survey allows (even with a loss of quality). I've found its possible to use OpenLayers to zoom further into layers where they are tile based such as OSM. The issue I am having is trying to get OpenLayers to display OSM data AND my layer in projection EPSG:27700.
Is this even possible?
Thanks.