I have an OS map on which I want to display points defined by Latitude and Longitude, but the map coo-ordinates have values I do not recognise or understand. The image shows the map, with my first point with its latitude and longitude. It is shown where I would expect it to be, but it does not appear on the map.. At the bottom of the image the co-ordinate system of the map is something I do not recognise, certainly not latitude and longitude. Please, how do I set it up so that my points are correctly displayed?
I am using a csv file of latitudes and longitudes, the first few lines are
Latitude,Longitude 50.82932,-1.05779 50.82934,-1.05790 50.82933,-1.05791 ...
The base map is from the UK Ordnance Survey, starting at: this entry point, downloading the data for the National Grid Reference square
SU, and selecting the map for
I tried to add the file of data to the map using "Add Delimited Text Layer." I did check, using Google Maps, that the first co-ordinates do represent the point shown in my image. I have set the map Co-ordinate Reference System, CRS, to WGS84. The co-ordinates in the red ellipse appear to be with reference to the top left corner of the map as 0,0 (possibly pixels?)
I should also mention that this is my first attempt to use QGIS, so please forgive my fumbling approach.