Elevation sampler not the same with custom elevation input

Question

Hi,

I'm initializing initial input into ElevationProfile. However, the line generated from the sampler seems like having an offset from the initial input. Any idea why?

Link to codepen: https://codepen.io/azhaziqgoh/pen/podWVdg?editors=1000

JohnGrayson · Accepted Answer

Your polyline is very long but only has a few points.  For better display and analytical results, try to densify the polyline before creating a profile.  https://codepen.io/john-grayson/pen/NWwaoBg