Selection of Topographic Prominence Peaks

Since 2021.02 a new transformation has been added which finds peaks based on their topographic prominence

There is an option to specify <minimumPeakValueFunction>@minPeak@</minimumPeakValueFunction> so peaks with a too low height are taken out.

There is also an option to specify <minimumProminenceFunction>@minimumProminence@</minimumProminenceFunction> which ignores peaks that have a too low prominence.

The minimum prominence is a good way to take out local maxima which are not really peaks, prominence can be summarized as "how far is it needed to descend in order to reach a higher peak"

<transformation id="topographic prominence peaks">
   <selection>
      <topographicProminencePeaks>
         <inputVariable>
            <variableId>input</variableId>
         </inputVariable>
         <minimumPeakValueFunction>@minPeakProminence@</minimumPeakValueFunction>
         <minimumProminenceFunction>@minimumProminence@</minimumProminenceFunction>
         <outputVariable>
            <variableId>output</variableId>
         </outputVariable>
      </topographicProminencePeaks>
   </selection>
</transformation>