Hi, I am stuck at the same point as this thread : http://www.georeference.org/forum/t113912.17
I want to calculate the population of each village in Senegal :
from here I got the village location : https://data.humdata.org/dataset/senegal-settlements
and from there a raster where each pixel counts the population : https://data.humdata.org/dataset/senegal-settlements
Then I made a drawing with the voronoi area of my villages points, and run a transfer height from the raster to the voronoi area.
Total population according to the raster : 14 Million (counted from a SQL query : selection sum([height (I)]))
Total population counted in the voronoi cells : 16Million.
It seems that the bug reported in this thread is still there http://www.georeference.org/forum/t113912.17 (I have Manifold 8.0.30)
Do you see any other method to allocate the population from the raster to the points drawing?