How can I get the value of a point that falls between 2 points of another layer?
I have a Shapefile of points with values representing the distance from an origin (blue in the example bellow) at equal interval along a polyline and a Shapefile of points that I want to get the values (red in the example bellow).
I'm thinking of using the IDW interpolation, but I'm not quite sure...
EDIT 1 : Made a more accurate example
EDIT 2 : Would a TIN (linear interpolation) and then a TIN to Raster give me a better result?