Example of a Custom DataSet

Consider the following example where an existing near field is examined. When the magnitude of the field at any point exceeds 5 $\frac{V}{m}$ , the custom DataSet stores that value. For all other values it is zero.

nf1 = pf.NearField.GetDataSet("Horn.StandardConfiguration1.NearField1")
-- Create custom dataset
custom = pf.DataSet.New()
for axisNum = 1,nf1.Axes.Count do
    sourceAxis = nf1.Axes[axisNum]
    custom.Axes:Add(sourceAxis.Name, sourceAxis.Unit, sourceAxis.Values)
end
custom.Quantities:Add("above5V", "scalar", "V/m")

-- Populate the values
function process5Vthreshold(index, target, source1) 
  local magEx = source1[index].EFieldComp1:Magnitude()
  local magEy = source1[index].EFieldComp2:Magnitude()
  local magEz = source1[index].EFieldComp3:Magnitude()
  local totalE = math.sqrt(magEx^2 + magEy^2 + magEz^2)
  if (totalE >= 5) then 
    target[index].above5V = totalE
  else 
    target[index].above5V = 0
  end 
end
pf.DataSet.ForAllValues(process5Vthreshold, custom, nf1)

print(custom)

return custom