PolyDrill v. 0.6. Calculates the average value of a selected raster’s z-value under the area of the polygon.

  Considerations:

  • It is assumed that the selected layers within the dataframe share a common projection.
  • Multiple polygon features within the polygon layer are allowed.
  • For each polygon, two values will be determined: the average z-value and the number of raster pixels used to
  • calculate the average value. They will be stored in the attribute table as bxx_avg and bxx_cnt respectively where xx is the band number.

      Instructions:

  • From a pulldown menu, select the name of the polygon
  • From a pulldown menu select the name of the raster layer
  • Click the Execute button

    Download this dll (poly_drill.dll 48 Kb).