added types

dist/index.d.ts

@@ -0,0 +1,2 @@
+declare const addon: any;
+export default addon;

dist/index.js

@@ -0,0 +1,9 @@
+"use strict";
+// var addon = require("./build/Release/napi-addon-fdtd.node");
+var __importDefault = (this && this.__importDefault) || function (mod) {
+    return (mod && mod.__esModule) ? mod : { "default": mod };
+};
+Object.defineProperty(exports, "__esModule", { value: true });
+var bindings_1 = __importDefault(require("bindings"));
+var addon = (0, bindings_1.default)('napi-addon-fdtd');
+exports.default = addon;

dist/test-addon.d.ts

@@ -0,0 +1 @@
+export {};

dist/test-addon.js

@@ -0,0 +1,56 @@
+"use strict";
+var __importDefault = (this && this.__importDefault) || function (mod) {
+    return (mod && mod.__esModule) ? mod : { "default": mod };
+};
+Object.defineProperty(exports, "__esModule", { value: true });
+var fs_1 = __importDefault(require("fs"));
+var path_1 = __importDefault(require("path"));
+var index_1 = __importDefault(require("./index"));
+var test1D = function () {
+    var condition = [1, 10, 1];
+    var eps = [1, 1.2];
+    var sigma = [0, 0.04];
+    var srcPosition = [0.4, 0.8];
+    var data = index_1.default.getData2D(condition, true, eps, 2, srcPosition, sigma);
+    for (var j = 0; j < 50; ++j) {
+        data = index_1.default.getData2D(condition, false, eps, 2, srcPosition, sigma);
+    }
+    fs_1.default.writeFileSync(path_1.default.resolve(__dirname, "tmp.txt"), JSON.stringify(data.dataHy), 
+    // @ts-ignore
+    function (err) {
+        if (err) {
+            return console.log(err);
+        }
+        console.log("The file was saved!");
+    }); // Orfs.writeFileSync('/tmp/test-sync', 'Hey there!');
+};
+var test2D = function () {
+    var epsSize = 40;
+    var eps = Array(epsSize * 2).fill(0).map(function (_) { return Math.random() * 10; });
+    var condition = [1, 10];
+    var reload = true;
+    var data = index_1.default.getData3D(condition, reload, [4, 5, 6, 7], 2, 0);
+    reload = false;
+    for (var j = 0; j < 150; ++j) {
+        //eps, epsSize
+        data = index_1.default.getData3D(condition, reload, [4, 5, 6, 7], 2, 0);
+    }
+    fs_1.default.writeFileSync(path_1.default.resolve(__dirname, "tmp.txt"), JSON.stringify(data.dataY), 
+    // @ts-ignore
+    function (err) {
+        if (err) {
+            return console.log(err);
+        }
+        console.log("The file was saved!");
+    }); // Orfs.writeFileSync('/tmp/test-sync', 'Hey there!');
+};
+function testMemoryUsage() {
+    // const arr = [1, 2, 3, 4, 5, 6, 9, 7, 8, 9, 10];
+    // const arr = Array(1e7).fill(1e3);
+    // arr.reverse();
+    var used = process.memoryUsage().heapUsed / 1024 / 1024;
+    console.log("The script uses approximately ".concat(Math.round(used * 100) / 100, " MB"));
+}
+test1D();
+// test2D();
+// testMemoryUsage();

dist/tmp.txt

@@ -0,0 +1 @@
+[2.220446047393039e-23,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,4.440892098500626e-24,1e-8,0.0012325076431646516,0.0010463784384080524,0.0007875661891052479,0.0004943708066556822,0.0001997006066360833,-0.00006542641099382795,-0.00028108790805666476,-0.00043372038148587594,-0.0005172913891631924,-0.0005386023777307399,-0.0005007158868566528,-0.00042218337821043944,-0.00031618521306208953,-0.00019388368414890262,-0.0000776739820877198,0.000026567614627989825,0.00011465436537071313,0.00017161922112388453,0.00019884538936437853,0.0002083153189791913,0.00019812992491725537,0.0001626161040688944,0.00011133681664271628,0.00006307097936149048,0.00002971649308812137,0.000011758862189057855,0.00000394989433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index.d.ts

@@ -0,0 +1,33 @@
+
+type GetData3D = (
+    condition: number[],
+    reload: boolean,
+    eps: number[],
+    epsSize: number,
+    dataReturnType: number,
+) => any
+
+type GetData2D = (
+  condition: number[],
+  reload: boolean,
+  eps: number[],
+  epsSize: number,
+  sourcePositionRelative: number[],
+  sigma: number[]
+  // dataReturnType: number,
+) => any
+
+// interface Module {
+//     sayHi: (id: number) => void;
+//     getData3D: GetData3D;
+//     getData2D: GetData2D;
+//   }
+
+  // declare module 'bindings' {
+  //   export default function(string: 'hello'): Module;
+  // }
+
+  declare module 'napi-addon-fdtd' {
+    export const getData3D: GetData3D;
+    export const getData2D: GetData2D;
+  }

index.ts

@@ -0,0 +1,9 @@
+// var addon = require("./build/Release/napi-addon-fdtd.node");
+
+import bindings from 'bindings';
+const addon = bindings('napi-addon-fdtd')
+
+
+export default addon;
+
+

package.json

@@ -1,18 +1,24 @@
 {
   "name": "napi-addon-fdtd",
-  "version": "3.1.15",
+  "version": "3.1.22",
   "description": "Build N-API native addon with CMake and node-addon-api C++ wrapper. FDTD physics simulation",
-  "main": "index.js",
+  "main": "dist/index.js",
+  "types": "index.d.ts",
   "scripts": {
     "install": "cmake-js compile",
-    "test": "node index.js"
+    "test": "npm install && tsc && node dist/test-addon.js"
   },
   "keywords": [],
   "author": "maxmaxkklosd99<[email protected]>",
   "license": "ISC",
   "dependencies": {
+    "bindings": "^1.5.0",
     "cmake-js": "^6.2.1",
-    "napi-addon-fdtd": "^3.1.5",
     "node-addon-api": "^3.1.0"
+  },
+  "devDependencies": {
+    "@types/bindings": "^1.5.1",
+    "@types/node": "^17.0.24",
+    "typescript": "^4.6.3"
   }
 }

src/FDTD/2D/FDTD_2D.cpp

@@ -35,13 +35,14 @@ void FDTD_2D::setParams()
     ticks = 0;
 
     // Grid steps.
+    // dx = 1 / 20
     dx = 0.05;
-    dt = 0.025;
+    dt = dx / 2;
 
 
     // Physics params.
-    aa1 = lambda * lambda / (0.09 * tau * tau);
-    tMax = 4 * tau / (lambda / 0.3);
+    aa1 = lambda * lambda / (c0 * c0 * tau * tau);
+    tMax = 3 * tau / (lambda / c0);
 
     for (int i = 0; i < Nx; i++)
     {

src/FDTD/2D/FDTD_2D.h

@@ -13,9 +13,11 @@ class FDTD_2D
     double Ti;   //??
     double tMax; //??
 
-    // Grid size
+    // Grid size.
     static const size_t Nx = 800;
-    static const size_t Ny = 501;
+
+    // Source position.
+    static const size_t Ny = 200;
 
     // Grid steps.
     double dx;
@@ -33,6 +35,9 @@ class FDTD_2D
     double Ex[Nx];
     double Ex_prev[Nx];
 
+    // Normalized light speed in Gaussian system.
+    double c0 = 0.3;
+
     // lambda - wave length
     double lambda;