Using Terrain Profile plugin with an interpolated raster

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I am very new to QGIS and the goal of this exercise is to view an elevation profile of a river from a set of discrete points taken from surveying records.

Steps taken:

  1. A vector layer was created from a delimited text layer (exportedfrom excel)
  2. An .asc file was created using the interpolation plugin
  3. The .asc file was converted to a raster .tif using the translate tool
  4. Attempted to use the terrain profile plugin
I tried using a temporary polyline, but each time the plot showed up empty

If anyone is willing to check out the file, I can email it!





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