Convert Lat/Long to x,y format
If you have your graphics in latitude and longitue format, you will have to convert it to x,y format. This can be done with external converters.
Example of such converter is this: https://tool-online.com/en/coordinate-converter.php#
To get exact points of graphics, you have to set conversion format correctly. For Lat&Long format set WORLD and WGS 84 ( GPS ) and for x,y format set WORLD and Google Mercator(WGS 84-Pseudo-Mercator)
Make sure that decimal separators are in order.