(issue1754) Fix Radius calculation for filtered (smoothed) facets To know the acutal extend of the Domain axis shown we need to know all data in the diagram as the acutal extend is the data point needed to calculate a Radius confusingly configured in zoom-scales we have to add all data first and then add the real filtered facets in a postprocessing step.

SYMBOLSET
SYMBOL
  NAME 'point'
  TYPE ELLIPSE
  POINTS
    1 1
  END
  FILLED TRUE
END
SYMBOL
  NAME "square"
  TYPE VECTOR
  POINTS
    0 0
    0 1
    1 1
    1 0
    0 0
  END
  FILLED TRUE
END
END