BornAgain ≻ 20 ≻ Documentation ≻ Reference ≻ Simulation model ≻ Class SimulationResult

Class SimulationResult

The function simulation.simulate() returns an object of class SimulationResult.

A SimulationResult object contains

  • simulated radiation intensities,
  • coordinate axes, and
  • optionally, a title.

Plot

For plotting a SimulationResult object, our Python module ba_plot provides the function plot_simulation_result(result).

Usage:

from bornagain import ba_plot as bp
bp.parse_args()
simulation = ...
result = simulation.simulate()
bp.plot_simulation_result(result)

The function parse_args() has been included to process certain command-line arguments. Let the above code lines be part of script.py.

To export the plot to a graphics file outfile.ext (where the extension ext can be any of eps, jpeg, jpg, pdf, pgf, png, ps, raw, rgba, svg, svgz, tif, tiff, webp), invoke the script with

python3 script.py figfile=outfile.ext

To export the simulation result to a data file outfile.int.gz, invoke the script with

python3 script.py datfile=outfile

Export to NumPy

A simulation result can be exported to a NumPy array, using

result = simulation.simulate()
arr = result.array()

The array can then be saved through the NumPy method

numpy.savetxt("intensity.txt", arr)

Save in various formats

Alternatively, a simulation result can be directly saved through the BornAgain Python method

import bornagain as ba
result = simulation.simulate()
ba.IOFactory.writeSimulationResult(result, file_name)

where file_name must have one of the extensions

  • .txt - ASCII file with 2D array [nrow][ncol], layout as in NumPy;
  • .int - BornAgain internal ASCII format;
  • .tif - 32-bits TIFF file.

To this extension, one may concatenate a second extension to enforce compression:

  • .gz or
  • .bz2