I recieved a shapefile with georeferenced trees, but they didn't used a GPS to get the coordinates (not sure how they did it, some traditional stuff maybe?). So, the position doesn't match exactly on the field. I need to correct this for planning some plots. I mapped myself some of the trees on the field and compared to the first shapefile, they seem to have a semi-consistent displacement at NE and the distance varies between 70-80 m.
Is there some way to correct this? I can afford accuracy to 10 m
If so, how many trees would be needed to map on the field for reference? The first shape file has aprox 3000 points
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Is there some way to correct this? I can afford accuracy to 10 m
If so, how many trees would be needed to map on the field for reference? The first shape file has aprox 3000 points
أكثر...