8216c76bd0
Add comprehensive Fresnel zone ellipsoid visualization for all active links in the 3D scene. Provides developers with real-time feedback on link coverage geometry and detection quality. Features: - FresnelEllipsoid() helper function in dashboard/js/fresnel.js for shared ellipsoid geometry computation (used by both debug and explainability) - Wireframe + fill material rendering for clear ellipsoid visualization - Debug layer toggle in node panel (expert mode only) - Hover interaction with tooltip showing link details (distance, wavelength, Fresnel radius, health score) - Click interaction to select corresponding link in sidebar - Mobile viewport optimization (reduced segment count for performance) - Comprehensive test coverage for ellipsoid geometry computation The first Fresnel zone ellipsoid represents the region where point reflectors have maximum impact on CSI phase. Visualizing these zones helps system tuners understand why localisation places blobs in specific positions and identify coverage gaps. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
316 lines
11 KiB
JavaScript
316 lines
11 KiB
JavaScript
/**
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* Spaxel Dashboard - Fresnel Zone Tests
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*
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* Tests for Fresnel ellipsoid geometry computation.
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* These tests verify the correctness of the Fresnel zone calculations
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* used for both the debug overlay and explainability overlay.
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*/
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describe('Fresnel Module', function() {
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// Mock THREE.js before all tests
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beforeAll(function() {
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if (typeof THREE === 'undefined') {
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global.THREE = {
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Vector3: function(x, y, z) {
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this.x = x || 0;
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this.y = y || 0;
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this.z = z || 0;
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},
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Quaternion: function() {
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this._x = 0;
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this._y = 0;
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this._z = 0;
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this._w = 1;
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}
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};
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// Add prototype methods to Vector3
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THREE.Vector3.prototype.distanceTo = function(v) {
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return Math.sqrt(
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Math.pow(this.x - v.x, 2) +
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Math.pow(this.y - v.y, 2) +
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Math.pow(this.z - v.z, 2)
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);
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};
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THREE.Vector3.prototype.addVectors = function(v1, v2) {
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this.x = v1.x + v2.x;
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this.y = v1.y + v2.y;
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this.z = v1.z + v2.z;
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return this;
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};
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THREE.Vector3.prototype.subVectors = function(v1, v2) {
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this.x = v1.x - v2.x;
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this.y = v1.y - v2.y;
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this.z = v1.z - v2.z;
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return this;
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};
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THREE.Vector3.prototype.multiplyScalar = function(s) {
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this.x *= s;
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this.y *= s;
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this.z *= s;
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return this;
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};
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THREE.Vector3.prototype.clone = function() {
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return new THREE.Vector3(this.x, this.y, this.z);
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};
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THREE.Quaternion.prototype.setFromUnitVectors = function(from, to) {
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// Simplified quaternion for testing
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this._w = 1;
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return this;
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};
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THREE.Quaternion.prototype.clone = function() {
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return new THREE.Quaternion();
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};
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}
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// Load the Fresnel module
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if (typeof window !== 'undefined') {
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// In browser environment, the module should already be loaded
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// For testing purposes, we'll use the functions directly
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}
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});
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describe('calculateFresnelEllipsoid', function() {
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var calculateFresnelEllipsoid;
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beforeEach(function() {
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if (window.Fresnel && window.Fresnel.calculateFresnelEllipsoid) {
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calculateFresnelEllipsoid = window.Fresnel.calculateFresnelEllipsoid;
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}
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});
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it('should calculate correct semi-major and semi-minor axes for a 4m link', function() {
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if (!calculateFresnelEllipsoid) {
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test.skip('Fresnel module not loaded');
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return;
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}
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var tx = new THREE.Vector3(0, 0, 0);
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var rx = new THREE.Vector3(4, 0, 0);
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var channel = 6; // 2.4 GHz
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var result = calculateFresnelEllipsoid(tx, rx, channel);
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// Expected values:
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// lambda = 0.125m (2.4 GHz)
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// d = 4m
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// a = (d + lambda/2) / 2 = (4 + 0.0625) / 2 = 2.03125
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// b = sqrt(a^2 - (d/2)^2) = sqrt(2.03125^2 - 2^2) = sqrt(4.126 - 4) = sqrt(0.126) ≈ 0.355
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expect(result.d).toBeCloseTo(4, 0.01);
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expect(result.a).toBeCloseTo(2.031, 0.001);
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expect(result.b).toBeCloseTo(0.355, 0.001);
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});
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it('should calculate correct semi-minor axis for very short link (edge case)', function() {
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if (!calculateFresnelEllipsoid) {
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test.skip('Fresnel module not loaded');
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return;
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}
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var tx = new THREE.Vector3(0, 0, 0);
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var rx = new THREE.Vector3(0.1, 0, 0);
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var channel = 6;
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var result = calculateFresnelEllipsoid(tx, rx, channel);
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// For a very short link, b should be small but positive
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expect(result.b).toBeGreaterThan(0);
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expect(result.b).toBeLessThan(0.1);
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});
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it('should calculate correct axes for diagonal link (distance = 5m)', function() {
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if (!calculateFresnelEllipsoid) {
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test.skip('Fresnel module not loaded');
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return;
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}
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var tx = new THREE.Vector3(0, 0, 0);
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var rx = new THREE.Vector3(3, 4, 0); // 3-4-5 triangle, distance = 5
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var channel = 6;
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var result = calculateFresnelEllipsoid(tx, rx, channel);
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// Expected:
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// d = 5m
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// lambda = 0.125m
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// a = (5 + 0.0625) / 2 = 2.53125
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// b = sqrt(2.53125^2 - 2.5^2) = sqrt(6.407 - 6.25) = sqrt(0.157) ≈ 0.396
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expect(result.d).toBeCloseTo(5, 0.01);
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expect(result.a).toBeCloseTo(2.531, 0.001);
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expect(result.b).toBeCloseTo(0.396, 0.001);
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});
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it('should use correct wavelength for 5 GHz channel', function() {
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if (!calculateFresnelEllipsoid) {
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test.skip('Fresnel module not loaded');
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return;
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}
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var tx = new THREE.Vector3(0, 0, 0);
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var rx = new THREE.Vector3(4, 0, 0);
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var channel = 36; // 5 GHz channel
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var result = calculateFresnelEllipsoid(tx, rx, channel);
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// For 5 GHz: lambda = 0.06m
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// a = (4 + 0.03) / 2 = 2.015
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// b = sqrt(2.015^2 - 2^2) = sqrt(4.060 - 4) = sqrt(0.060) ≈ 0.245
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expect(result.lambda).toBeCloseTo(0.06, 0.001);
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expect(result.a).toBeCloseTo(2.015, 0.001);
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expect(result.b).toBeCloseTo(0.245, 0.001);
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});
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it('should use correct wavelength for 2.4 GHz channel', function() {
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if (!calculateFresnelEllipsoid) {
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test.skip('Fresnel module not loaded');
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return;
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}
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var tx = new THREE.Vector3(0, 0, 0);
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var rx = new THREE.Vector3(4, 0, 0);
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var channel = 6; // 2.4 GHz channel
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var result = calculateFresnelEllipsoid(tx, rx, channel);
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// For 2.4 GHz: lambda = 0.125m
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expect(result.lambda).toBeCloseTo(0.125, 0.001);
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});
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it('should calculate ellipsoid center at midpoint', function() {
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if (!calculateFresnelEllipsoid) {
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test.skip('Fresnel module not loaded');
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return;
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}
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var tx = new THREE.Vector3(0, 0, 0);
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var rx = new THREE.Vector3(4, 0, 0);
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var channel = 6;
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var result = calculateFresnelEllipsoid(tx, rx, channel);
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expect(result.center.x).toBeCloseTo(2, 0.001);
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expect(result.center.y).toBeCloseTo(0, 0.001);
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expect(result.center.z).toBeCloseTo(0, 0.001);
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});
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it('should calculate ellipsoid center for diagonal link', function() {
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if (!calculateFresnelEllipsoid) {
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test.skip('Fresnel module not loaded');
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return;
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}
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var tx = new THREE.Vector3(0, 0, 0);
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var rx = new THREE.Vector3(6, 8, 0);
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var channel = 6;
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var result = calculateFresnelEllipsoid(tx, rx, channel);
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// Midpoint of (0,0,0) and (6,8,0) is (3,4,0)
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expect(result.center.x).toBeCloseTo(3, 0.001);
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expect(result.center.y).toBeCloseTo(4, 0.001);
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expect(result.center.z).toBeCloseTo(0, 0.001);
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});
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it('should handle zero channel gracefully (default to 2.4 GHz)', function() {
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if (!calculateFresnelEllipsoid) {
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test.skip('Fresnel module not loaded');
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return;
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}
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var tx = new THREE.Vector3(0, 0, 0);
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var rx = new THREE.Vector3(4, 0, 0);
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var channel = 0; // Invalid channel
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var result = calculateFresnelEllipsoid(tx, rx, channel);
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// Should default to 2.4 GHz wavelength
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expect(result.lambda).toBeCloseTo(0.125, 0.001);
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});
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it('should handle very large link distance (100m)', function() {
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if (!calculateFresnelEllipsoid) {
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test.skip('Fresnel module not loaded');
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return;
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}
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var tx = new THREE.Vector3(0, 0, 0);
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var rx = new THREE.Vector3(100, 0, 0);
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var channel = 6;
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var result = calculateFresnelEllipsoid(tx, rx, channel);
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// For 100m link:
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// a = (100 + 0.0625) / 2 = 50.03125
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// b = sqrt(50.03125^2 - 50^2) = sqrt(2503.125 - 2500) = sqrt(3.125) ≈ 1.768
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expect(result.d).toBeCloseTo(100, 0.01);
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expect(result.a).toBeCloseTo(50.031, 0.001);
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expect(result.b).toBeCloseTo(1.768, 0.001);
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});
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});
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describe('getWavelengthForChannel', function() {
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var getWavelengthForChannel;
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beforeEach(function() {
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if (window.Fresnel && window.Fresnel.calculateFresnelEllipsoid) {
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// Test the wavelength indirectly through calculateFresnelEllipsoid
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getWavelengthForChannel = function(channel) {
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var tx = new THREE.Vector3(0, 0, 0);
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var rx = new THREE.Vector3(1, 0, 0);
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var result = window.Fresnel.calculateFresnelEllipsoid(tx, rx, channel);
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return result.lambda;
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};
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}
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});
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it('should return 2.4 GHz wavelength for channel 1', function() {
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if (!getWavelengthForChannel) {
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test.skip('Fresnel module not loaded');
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return;
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}
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expect(getWavelengthForChannel(1)).toBeCloseTo(0.125, 0.001);
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});
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it('should return 2.4 GHz wavelength for channel 6', function() {
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if (!getWavelengthForChannel) {
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test.skip('Fresnel module not loaded');
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return;
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}
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expect(getWavelengthForChannel(6)).toBeCloseTo(0.125, 0.001);
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});
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it('should return 2.4 GHz wavelength for channel 14', function() {
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if (!getWavelengthForChannel) {
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test.skip('Fresnel module not loaded');
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return;
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}
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expect(getWavelengthForChannel(14)).toBeCloseTo(0.125, 0.001);
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});
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it('should return 5 GHz wavelength for channel 36', function() {
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if (!getWavelengthForChannel) {
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test.skip('Fresnel module not loaded');
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return;
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}
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expect(getWavelengthForChannel(36)).toBeCloseTo(0.06, 0.001);
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});
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it('should return 5 GHz wavelength for channel 149', function() {
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if (!getWavelengthForChannel) {
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test.skip('Fresnel module not loaded');
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return;
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}
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expect(getWavelengthForChannel(149)).toBeCloseTo(0.06, 0.001);
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});
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});
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});
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