![]() Set the number of iterations to run for, how often to plot theresult, and the upper limit on the colourmap scale.Ĭhoose a field to plot - the default is the out-of-planeelectric field.Ĭlick run and the simulation will begin. Select the antenna parameters at the bottom. Touch the image to set a router location, marked by a redcircle. The simulation is limited in speed due to the mobile processor,so try to keep images below approximately 500x500 pixels Pixels are mapped to 1 centimetre, so scale the floorplanappropriately. Images will be convertedinto the correct materials on loading - this may take a fewseconds. png file, with empty space markedblack and materials marked with colours. An example floorplanis included in the app. This app uses the 2D Finite Difference Time Domain method tosolve Maxwell's equation on a Cartesian grid. This is based on a recent blog post 'Helmhurts' atwhich was featured on io9, Ars Technica, theDaily Mail, Scientific American and many other blogs. With this app you can take a floorplan of your house, set thelocation of a WiFi router, and simulate how the electromagneticwaves propagate - see an example here: ![]()
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January 2023
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