Tue 27 Jan 2026 02:37:58 PM CET

demo/plate1n/gendatasetn.js

@@ -0,0 +1,41 @@
+/*
+  Generate a set of samples with different damage positions (random, normal around center positions)
+  One transducer (top) and one sensor (bottom, x-centered, 30mm from bottom)
+*/
+var fs = require('fs'),
+    cp = require('child_process')
+    
+var plate = [500,500],
+    damx = [100,400],
+    damy = [100,400],
+    sampleN = 1000,
+    simu = '../../bin/simndt2b',
+    configFile = 'simndt_alu_plate_hole_20mm_sensorshape.json'
+    
+function gaussianRandom(mean, stdev) {
+    const u = 1 - Math.random(); // Converting [0,1) to (0,1]
+    const v = Math.random();
+    const z = Math.sqrt( -2.0 * Math.log( u ) ) * Math.cos( 2.0 * Math.PI * v );
+    // Transform to the desired mean and standard deviation:
+    return z * stdev + mean;
+}
+function randomInt(range) {
+  return gaussianRandom(250,50)|0
+}
+function readJSON(file) {
+  return JSON.parse(fs.readFileSync(file,'utf8'))
+}    
+function writeJSON(file,config) {
+  return fs.writeFileSync(file,JSON.stringify(config),'utf8')
+}
+for(var i=0;i<sampleN;i++) {
+  var config = readJSON(configFile)
+  config.GeometricObjects[0].x0=randomInt(damx);
+  config.GeometricObjects[0].y0=randomInt(damy);
+  config.Export.Save_filepath = './datan'
+  config.Export.Filename = 'sample-x'+config.GeometricObjects[0].x0+'-y'+config.GeometricObjects[0].y0;
+  writeJSON('config.json',config)
+  console.log(config.Export.Filename)
+  cp.spawnSync(simu,['config.json'])
+}
+