I am working with a google map on which I want to attach a grid of five points. Only one of them has real coordinates in the centre, point O ( 8.32688E, 48,32933N). For all the rest only the excel coordinates with respect to this know central point. I want to plot the grid on the map and also I want to determine properly the coordinates of the other 4 points.

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  • 1
    I seem not to get it. Why don't you just calculate the missing coordinates in Excel, export the table as csv and import it as delimited text layer with CRS WGS84?
    – Bernd V.
    Jul 23, 2015 at 17:46

1 Answer 1


as Bernd V suggests, it might be easier to just add the appropriate x and y offsets in excel.

another possibility is to use the Affine Transform plugin (when installed, it's under Vector > Geoprocessing Tools > Affine Transform)

You'd want to select all points except the O point - unless it's (0,0), in which case you should include it too.

Settings would then be

Selected points only
x' = 1.0x + 0.0y + 8.32
y' = 0.0x + 1.0y + 48.329

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