Somebody recommended me to use this site:- http://cs2cs.mygeodata.eu/ after I explained that this coordinates[-28.23078, 28.30707] which belongs to Bethlehem in South Africa centers the map to towards Congo. I'm using this array of coordinates on the view template(ol3view) that I have created with OpenGeo Suite. I still can't get it right, perhaps it's because I can't use that online application to transform my coordinates properly.
Please help me to display only South Africa and to center my map at Bethlehem (South Africa). To be precise, on launch I want my application to zoom to South Africa and center the map on Bethlehem (South Africa).