Aligning river polygon vertices to be the same elevation Hi,I have a polygon outline of the a river system with no elevation. Using contour shapefile, I generate a DEM raster, then drape the river polygon to get elevations for each point in the polygon.Problem I have is the data does not match. Occasionally the river edge covers the coastline so there is a slope across the river from one side of the river to its opposing side.Example being, if I stand on one side of the river and look to the other side, whilst being perpindicular, both z values should be the same. However, my results aren't the case.I've tried raster coercer to do some averages of z values and using neighbour finding to assign z values on the polygon, however when the neighbour is 'inbetween' points, it becomes inconsistent.is there a way to get clean centrelines without having the 'spider' legs along the way? Is there a way to draw perpendicular lines at each point of the polygon? Then I can use it to cut
