code by openlayers: You will need to declare EPSG:404000 in the same way as EPSG:21781 in this examplehttps://openlayers.org/en/v4.6.5/examples/wms-no-proj.htmlYou will not be able to usefromLonLatand will need to specify the center in EPSG:404000 coordinates. You will need to decl...