Example of mask filter in postpro?

[pcrespo]

I have an e-field in a simulation. I would like to mask some regions to compute statistics. Is there an example/tutorial about how to do this in python? thx

[Sylvain]

The typical workflow is to first build the postprocessing pipeline in the GUI, then use the "To Python" tool (available from the right-click contextual menu) to generate the corresponding Python script.

For the mask filter + SAR statistics, it would give something like this:

import numpy
import s4l_v1.analysis as analysis
import s4l_v1.document as document
import s4l_v1.model as model
import s4l_v1.units as units
from s4l_v1 import Unit

# Creating the analysis pipeline
# Adding a new SimulationExtractor
simulation = document.AllSimulations["Dipole (Broadband) - Copy"]
simulation_extractor = simulation.Results()

# Adding a new EmSensorExtractor
em_sensor_extractor = simulation_extractor["Overall Field"]
em_sensor_extractor.FrequencySettings.ExtractedFrequency = u"All"
em_sensor_extractor.Normalization.Normalize = True
em_sensor_extractor.Normalization.AvailableReferences = u"EM Input Power(f)"
em_sensor_extractor.SurfaceCurrent.SurfaceResolution = 0.001, units.Meters
document.AllAlgorithms.Add(em_sensor_extractor)

entity1=model.AllEntities()['Sphere 1']

# Adding a new FieldMaskingFilter
inputs = [em_sensor_extractor.Outputs["EM E(x,y,z,f0)"]]
field_masking_filter = analysis.core.FieldMaskingFilter(inputs=inputs)
field_masking_filter.SetAllMaterials(False)
field_masking_filter.SetEntities([entity1])
field_masking_filter.UpdateAttributes()
document.AllAlgorithms.Add(field_masking_filter)

# Adding a new SarStatisticsEvaluator
inputs = [field_masking_filter.Outputs["EM E(x,y,z,f0)"]]
sar_statistics_evaluator = analysis.em_evaluators.SarStatisticsEvaluator(inputs=inputs)
sar_statistics_evaluator.Snapshot = u"3e+08"
sar_statistics_evaluator.StdDev = False
sar_statistics_evaluator.TotalLossyVolume = False
sar_statistics_evaluator.VoxelCount = False
sar_statistics_evaluator.LossyVoxelCount = False
sar_statistics_evaluator.UpdateAttributes()
document.AllAlgorithms.Add(sar_statistics_evaluator)

[pcrespo]

Thanks so much!