How to use cos_direction_and_y_axis method in wpt

Best JavaScript code snippet using wpt

webxr-test.js

Source:webxr-test.js

1'use strict';2// This polyfill library implements the WebXR Test API as specified here:3// https://github.com/immersive-web/webxr-test-api4const default_standing = new gfx.mojom.Transform();5default_standing.matrix = [1, 0, 0, 0,6                           0, 1, 0, 0,7                           0, 0, 1, 0,8                           0, 1.65, 0, 1];9const default_stage_parameters = {10  standingTransform: default_standing,11  bounds: null12};13function getMatrixFromTransform(transform) {14  const x = transform.orientation[0];15  const y = transform.orientation[1];16  const z = transform.orientation[2];17  const w = transform.orientation[3];18  const m11 = 1.0 - 2.0 * (y * y + z * z);19  const m21 = 2.0 * (x * y + z * w);20  const m31 = 2.0 * (x * z - y * w);21  const m12 = 2.0 * (x * y - z * w);22  const m22 = 1.0 - 2.0 * (x * x + z * z);23  const m32 = 2.0 * (y * z + x * w);24  const m13 = 2.0 * (x * z + y * w);25  const m23 = 2.0 * (y * z - x * w);26  const m33 = 1.0 - 2.0 * (x * x + y * y);27  const m14 = transform.position[0];28  const m24 = transform.position[1];29  const m34 = transform.position[2];30  // Column-major linearized order is expected.31  return [m11, m21, m31, 0,32          m12, m22, m32, 0,33          m13, m23, m33, 0,34          m14, m24, m34, 1];35}36function composeGFXTransform(fakeTransformInit) {37  const transform = new gfx.mojom.Transform();38  transform.matrix = getMatrixFromTransform(fakeTransformInit);39  return transform;40}41class ChromeXRTest {42  constructor() {43    this.mockVRService_ = new MockVRService(mojo.frameInterfaces);44  }45  simulateDeviceConnection(init_params) {46    return Promise.resolve(this.mockVRService_.addRuntime(init_params));47  }48  disconnectAllDevices() {49    this.mockVRService_.removeAllRuntimes(device);50    return Promise.resolve();51  }52  simulateUserActivation(callback) {53    const button = document.createElement('button');54    button.textContent = 'click to continue test';55    button.style.display = 'block';56    button.style.fontSize = '20px';57    button.style.padding = '10px';58    button.onclick = () => {59      callback();60      document.body.removeChild(button);61    };62    document.body.appendChild(button);63    test_driver.click(button);64  }65}66// Mocking class definitions67// Mock service implements the VRService mojo interface.68class MockVRService {69  constructor() {70    this.bindingSet_ = new mojo.BindingSet(device.mojom.VRService);71    this.runtimes_ = [];72    this.interceptor_ =73        new MojoInterfaceInterceptor(device.mojom.VRService.name);74    this.interceptor_.oninterfacerequest = e =>75        this.bindingSet_.addBinding(this, e.handle);76    this.interceptor_.start();77  }78  // Test methods79  addRuntime(fakeDeviceInit) {80    const runtime = new MockRuntime(fakeDeviceInit, this);81    this.runtimes_.push(runtime);82    if (this.client_) {83      this.client_.onDeviceChanged();84    }85    return runtime;86  }87  removeAllRuntimes() {88    if (this.client_) {89      this.client_.onDeviceChanged();90    }91    this.runtimes_ = [];92  }93  removeRuntime(device) {94    const index = this.runtimes_.indexOf(device);95    if (index >= 0) {96      this.runtimes_.splice(index, 1);97      if (this.client_) {98        this.client_.onDeviceChanged();99      }100    }101  }102  setClient(client) {103    if (this.client_) {104      throw new Error("setClient should only be called once");105    }106    this.client_ = client;107  }108  requestSession(sessionOptions, was_activation) {109    const requests = [];110    // Request a session from all the runtimes.111    for (let i = 0; i < this.runtimes_.length; i++) {112      requests[i] = this.runtimes_[i].requestRuntimeSession(sessionOptions);113    }114    return Promise.all(requests).then((results) => {115      // Find and return the first successful result.116      for (let i = 0; i < results.length; i++) {117        if (results[i].session) {118          // Construct a dummy metrics recorder119          const metricsRecorderPtr = new device.mojom.XRSessionMetricsRecorderPtr();120          const metricsRecorderRequest = mojo.makeRequest(metricsRecorderPtr);121          const metricsRecorderBinding = new mojo.Binding(122              device.mojom.XRSessionMetricsRecorder, new MockXRSessionMetricsRecorder(), metricsRecorderRequest);123          const success = {124            session: results[i].session,125            metricsRecorder: metricsRecorderPtr,126          };127          return {128            result: {129              success : success,130              $tag :  0131            }132          };133        }134      }135      // If there were no successful results, returns a null session.136      return {137        result: {138          failureReason : device.mojom.RequestSessionError.NO_RUNTIME_FOUND,139          $tag :  1140        }141      };142    });143  }144  exitPresent() {145    return Promise.resolve();146  }147  supportsSession(sessionOptions) {148    const requests = [];149    // Check supports on all the runtimes.150    for (let i = 0; i < this.runtimes_.length; i++) {151      requests[i] = this.runtimes_[i].runtimeSupportsSession(sessionOptions);152    }153    return Promise.all(requests).then((results) => {154      // Find and return the first successful result.155      for (let i = 0; i < results.length; i++) {156        if (results[i].supportsSession) {157          return results[i];158        }159      }160      // If there were no successful results, returns false.161      return {supportsSession: false};162    });163  }164}165// Implements XRFrameDataProvider and XRPresentationProvider. Maintains a mock166// for XRPresentationProvider.167class MockRuntime {168  // Mapping from string feature names to the corresponding mojo types.169  // This is exposed as a member for extensibility.170  static featureToMojoMap = {171    'viewer': device.mojom.XRSessionFeature.REF_SPACE_VIEWER,172    'local': device.mojom.XRSessionFeature.REF_SPACE_LOCAL,173    'local-floor': device.mojom.XRSessionFeature.REF_SPACE_LOCAL_FLOOR,174    'bounded-floor': device.mojom.XRSessionFeature.REF_SPACE_BOUNDED_FLOOR,175    'unbounded': device.mojom.XRSessionFeature.REF_SPACE_UNBOUNDED,176    'hit-test': device.mojom.XRSessionFeature.HIT_TEST,177    'dom-overlay': device.mojom.XRSessionFeature.DOM_OVERLAY,178  };179  static sessionModeToMojoMap = {180    "inline": device.mojom.XRSessionMode.kInline,181    "immersive-vr": device.mojom.XRSessionMode.kImmersiveVr,182    "immersive-ar": device.mojom.XRSessionMode.kImmersiveAr,183  };184  constructor(fakeDeviceInit, service) {185    this.sessionClient_ = new device.mojom.XRSessionClientPtr();186    this.presentation_provider_ = new MockXRPresentationProvider();187    this.pose_ = null;188    this.next_frame_id_ = 0;189    this.bounds_ = null;190    this.send_mojo_space_reset_ = false;191    this.stageParameters_ = null;192    this.stageParametersUpdated_ = false;193    this.service_ = service;194    this.framesOfReference = {};195    this.input_sources_ = new Map();196    this.next_input_source_index_ = 1;197    // Currently active hit test subscriptons.198    this.hitTestSubscriptions_ = new Map();199    // ID of the next subscription to be assigned.200    this.next_hit_test_id_ = 1;201    let supportedModes = [];202    if (fakeDeviceInit.supportedModes) {203      supportedModes = fakeDeviceInit.supportedModes.slice();204      if (fakeDeviceInit.supportedModes.length === 0) {205        supportedModes = ["inline"];206      }207    } else {208      // Back-compat mode.209      console.warn("Please use `supportedModes` to signal which modes are supported by this device.");210      if (fakeDeviceInit.supportsImmersive == null) {211        throw new TypeError("'supportsImmersive' must be set");212      }213      supportedModes = ["inline"];214      if (fakeDeviceInit.supportsImmersive) {215        supportedModes.push("immersive-vr");216      }217    }218    this.supportedModes_ = this._convertModesToEnum(supportedModes);219    // Initialize DisplayInfo first to set the defaults, then override with220    // anything from the deviceInit221    if (this.supportedModes_.includes(device.mojom.XRSessionMode.kImmersiveVr)222     || this.supportedModes_.includes(device.mojom.XRSessionMode.kImmersiveAr)) {223      this.displayInfo_ = this.getImmersiveDisplayInfo();224    } else if (this.supportedModes_.includes(device.mojom.XRSessionMode.kInline)) {225      this.displayInfo_ = this.getNonImmersiveDisplayInfo();226    } else {227      // This should never happen!228      console.error("Device has empty supported modes array!");229      throw new InvalidStateError();230    }231    if (fakeDeviceInit.viewerOrigin != null) {232      this.setViewerOrigin(fakeDeviceInit.viewerOrigin);233    }234    if (fakeDeviceInit.floorOrigin != null) {235      this.setFloorOrigin(fakeDeviceInit.floorOrigin);236    }237    if (fakeDeviceInit.world) {238      this.world_ = fakeDeviceInit.world;239    }240    // This appropriately handles if the coordinates are null241    this.setBoundsGeometry(fakeDeviceInit.boundsCoordinates);242    this.setViews(fakeDeviceInit.views);243    // Need to support webVR which doesn't have a notion of features244    this.setFeatures(fakeDeviceInit.supportedFeatures || []);245  }246  _convertModeToEnum(sessionMode) {247    if (sessionMode in MockRuntime.sessionModeToMojoMap) {248      return MockRuntime.sessionModeToMojoMap[sessionMode];249    }250    throw new TypeError("Unrecognized value for XRSessionMode enum: " + sessionMode);251  }252  _convertModesToEnum(sessionModes) {253    return sessionModes.map(mode => this._convertModeToEnum(mode));254  }255  // Test API methods.256  disconnect() {257    this.service_.removeRuntime(this);258    this.presentation_provider_.Close();259    if (this.sessionClient_.ptr.isBound()) {260      this.sessionClient_.ptr.reset();261    }262    return Promise.resolve();263  }264  setViews(views) {265    if (views) {266      let changed = false;267      for (let i = 0; i < views.length; i++) {268        if (views[i].eye == 'left') {269          this.displayInfo_.leftEye = this.getEye(views[i]);270          changed = true;271        } else if (views[i].eye == 'right') {272          this.displayInfo_.rightEye = this.getEye(views[i]);273          changed = true;274        }275      }276      if (changed && this.sessionClient_.ptr.isBound()) {277        this.sessionClient_.onChanged(this.displayInfo_);278      }279    }280  }281  setViewerOrigin(origin, emulatedPosition = false) {282    const p = origin.position;283    const q = origin.orientation;284    this.pose_ = {285      orientation: { x: q[0], y: q[1], z: q[2], w: q[3] },286      position: { x: p[0], y: p[1], z: p[2] },287      emulatedPosition: emulatedPosition,288      angularVelocity: null,289      linearVelocity: null,290      angularAcceleration: null,291      linearAcceleration: null,292      inputState: null,293      poseIndex: 0294    };295  }296  clearViewerOrigin() {297    this.pose_ = null;298  }299  simulateVisibilityChange(visibilityState) {300    let mojoState = null;301    switch (visibilityState) {302      case "visible":303        mojoState = device.mojom.XRVisibilityState.VISIBLE;304        break;305      case "visible-blurred":306        mojoState = device.mojom.XRVisibilityState.VISIBLE_BLURRED;307        break;308      case "hidden":309        mojoState = device.mojom.XRVisibilityState.HIDDEN;310        break;311    }312    if (mojoState) {313      this.sessionClient_.onVisibilityStateChanged(mojoState);314    }315  }316  setBoundsGeometry(bounds) {317    if (bounds == null) {318      this.bounds_ = null;319    } else if (bounds.length < 3) {320      throw new Error("Bounds must have a length of at least 3");321    } else {322      this.bounds_ = bounds;323    }324    // We can only set bounds if we have stageParameters set; otherwise, we325    // don't know the transform from local space to bounds space.326    // We'll cache the bounds so that they can be set in the future if the327    // floorLevel transform is set, but we won't update them just yet.328    if (this.stageParameters_) {329      this.stageParameters_.bounds = this.bounds_;330      this.onStageParametersUpdated();331    }332  }333  setFloorOrigin(floorOrigin) {334    if (!this.stageParameters_) {335      this.stageParameters_ = default_stage_parameters;336      this.stageParameters_.bounds = this.bounds_;337    }338    this.stageParameters_.standingTransform = new gfx.mojom.Transform();339    this.stageParameters_.standingTransform.matrix =340      getMatrixFromTransform(floorOrigin);341    this.onStageParametersUpdated();342  }343  clearFloorOrigin() {344    if (this.stageParameters_) {345      this.stageParameters_ = null;346      this.onStageParametersUpdated();347    }348  }349  onStageParametersUpdated() {350    // Indicate for the frame loop that the stage parameters have been updated.351    this.stageParametersUpdated_ = true;352    this.displayInfo_.stageParameters = this.stageParameters_;353    if (this.sessionClient_.ptr.isBound()) {354      this.sessionClient_.onChanged(this.displayInfo_);355    }356  }357  simulateResetPose() {358    this.send_mojo_space_reset_ = true;359  }360  simulateInputSourceConnection(fakeInputSourceInit) {361    const index = this.next_input_source_index_;362    this.next_input_source_index_++;363    const source = new MockXRInputSource(fakeInputSourceInit, index, this);364    this.input_sources_.set(index, source);365    return source;366  }367  // Helper methods368  getNonImmersiveDisplayInfo() {369    const displayInfo = this.getImmersiveDisplayInfo();370    displayInfo.capabilities.canPresent = false;371    displayInfo.leftEye = null;372    displayInfo.rightEye = null;373    return displayInfo;374  }375  // Function to generate some valid display information for the device.376  getImmersiveDisplayInfo() {377    return {378      displayName: 'FakeDevice',379      capabilities: {380        hasPosition: false,381        hasExternalDisplay: false,382        canPresent: true,383        maxLayers: 1384      },385      stageParameters: null,386      leftEye: {387        fieldOfView: {388          upDegrees: 48.316,389          downDegrees: 50.099,390          leftDegrees: 50.899,391          rightDegrees: 35.197392        },393        headFromEye: composeGFXTransform({394          position: [-0.032, 0, 0],395          orientation: [0, 0, 0, 1]396        }),397        renderWidth: 20,398        renderHeight: 20399      },400      rightEye: {401        fieldOfView: {402          upDegrees: 48.316,403          downDegrees: 50.099,404          leftDegrees: 50.899,405          rightDegrees: 35.197406        },407        headFromEye: composeGFXTransform({408          position: [0.032, 0, 0],409          orientation: [0, 0, 0, 1]410        }),411        renderWidth: 20,412        renderHeight: 20413      },414      webxrDefaultFramebufferScale: 0.7,415    };416  }417  // This function converts between the matrix provided by the WebXR test API418  // and the internal data representation.419  getEye(fakeXRViewInit) {420    let fov = null;421    if (fakeXRViewInit.fieldOfView) {422      fov = {423        upDegrees: fakeXRViewInit.fieldOfView.upDegrees,424        downDegrees: fakeXRViewInit.fieldOfView.downDegrees,425        leftDegrees: fakeXRViewInit.fieldOfView.leftDegrees,426        rightDegrees: fakeXRViewInit.fieldOfView.rightDegrees427      };428    } else {429      const m = fakeXRViewInit.projectionMatrix;430      function toDegrees(tan) {431        return Math.atan(tan) * 180 / Math.PI;432      }433      const leftTan = (1 - m[8]) / m[0];434      const rightTan = (1 + m[8]) / m[0];435      const upTan = (1 + m[9]) / m[5];436      const downTan = (1 - m[9]) / m[5];437      fov = {438        upDegrees: toDegrees(upTan),439        downDegrees: toDegrees(downTan),440        leftDegrees: toDegrees(leftTan),441        rightDegrees: toDegrees(rightTan)442      };443    }444    return {445      fieldOfView: fov,446      headFromEye: composeGFXTransform(fakeXRViewInit.viewOffset),447      renderWidth: fakeXRViewInit.resolution.width,448      renderHeight: fakeXRViewInit.resolution.height449    };450  }451  setFeatures(supportedFeatures) {452    function convertFeatureToMojom(feature) {453      if (feature in MockRuntime.featureToMojoMap) {454        return MockRuntime.featureToMojoMap[feature];455      } else {456        return device.mojom.XRSessionFeature.INVALID;457      }458    }459    this.supportedFeatures_ = [];460    for (let i = 0; i < supportedFeatures.length; i++) {461      const feature = convertFeatureToMojom(supportedFeatures[i]);462      if (feature !== device.mojom.XRSessionFeature.INVALID) {463        this.supportedFeatures_.push(feature);464      }465    }466  }467  // These methods are intended to be used by MockXRInputSource only.468  addInputSource(source) {469    if (!this.input_sources_.has(source.source_id_)) {470      this.input_sources_.set(source.source_id_, source);471    }472  }473  removeInputSource(source) {474    this.input_sources_.delete(source.source_id_);475  }476  // Extension point for non-standard modules.477  _injectAdditionalFrameData(options, frameData) {478  }479  // Mojo function implementations.480  // XRFrameDataProvider implementation.481  getFrameData(options) {482    const mojo_space_reset = this.send_mojo_space_reset_;483    this.send_mojo_space_reset_ = false;484    const stage_parameters_updated = this.stageParametersUpdated_;485    this.stageParametersUpdated_ = false;486    if (this.pose_) {487      this.pose_.poseIndex++;488    }489    // Setting the input_state to null tests a slightly different path than490    // the browser tests where if the last input source is removed, the device491    // code always sends up an empty array, but it's also valid mojom to send492    // up a null array.493    let input_state = null;494    if (this.input_sources_.size > 0) {495      input_state = [];496      for (const input_source of this.input_sources_.values()) {497        input_state.push(input_source.getInputSourceState());498      }499    }500    // Convert current document time to monotonic time.501    let now = window.performance.now() / 1000.0;502    const diff = now - internals.monotonicTimeToZeroBasedDocumentTime(now);503    now += diff;504    now *= 1000000;505    const frameData = {506      pose: this.pose_,507      mojoSpaceReset: mojo_space_reset,508      inputState: input_state,509      timeDelta: {510        microseconds: now,511      },512      frameId: this.next_frame_id_++,513      bufferHolder: null,514      bufferSize: {},515      stageParameters: this.stageParameters_,516      stageParametersUpdated: stage_parameters_updated,517    };518    this._calculateHitTestResults(frameData);519    this._injectAdditionalFrameData(options, frameData);520    return Promise.resolve({521      frameData: frameData,522    });523  }524  getEnvironmentIntegrationProvider(environmentProviderRequest) {525    this.environmentProviderBinding_ = new mojo.AssociatedBinding(526        device.mojom.XREnvironmentIntegrationProvider, this,527        environmentProviderRequest);528  }529  // Note that if getEnvironmentProvider hasn't finished running yet this will530  // be undefined. It's recommended that you allow a successful task to post531  // first before attempting to close.532  closeEnvironmentIntegrationProvider() {533    this.environmentProviderBinding_.close();534  }535  closeDataProvider() {536    this.dataProviderBinding_.close();537  }538  updateSessionGeometry(frame_size, display_rotation) {539    // This function must exist to ensure that calls to it do not crash, but we540    // do not have any use for this data at present.541  }542  // XREnvironmentIntegrationProvider implementation:543  subscribeToHitTest(nativeOriginInformation, entityTypes, ray) {544    if (!this.supportedModes_.includes(device.mojom.XRSessionMode.kImmersiveAr)) {545      // Reject outside of AR.546      return Promise.resolve({547        result : device.mojom.SubscribeToHitTestResult.FAILURE_GENERIC,548        subscriptionId : 0549      });550    }551    if (nativeOriginInformation.$tag == device.mojom.XRNativeOriginInformation.Tags.inputSourceId) {552      if (!this.input_sources_.has(nativeOriginInformation.inputSourceId)) {553        // Reject - unknown input source ID.554        return Promise.resolve({555          result : device.mojom.SubscribeToHitTestResult.FAILURE_GENERIC,556          subscriptionId : 0557        });558      }559    } else if (nativeOriginInformation.$tag == device.mojom.XRNativeOriginInformation.Tags.referenceSpaceCategory) {560      // Bounded_floor & unbounded ref spaces are not yet supported for AR:561      if (nativeOriginInformation.referenceSpaceCategory == device.mojom.XRReferenceSpaceCategory.UNBOUNDED562       || nativeOriginInformation.referenceSpaceCategory == device.mojom.XRReferenceSpaceCategory.BOUNDED_FLOOR) {563        return Promise.resolve({564          result : device.mojom.SubscribeToHitTestResult.FAILURE_GENERIC,565          subscriptionId : 0566        });567      }568    } else {569      // Planes and anchors are not yet supported by the mock interface.570      return Promise.resolve({571        result : device.mojom.SubscribeToHitTestResult.FAILURE_GENERIC,572        subscriptionId : 0573      });574    }575    // Store the subscription information as-is:576    const id = this.next_hit_test_id_++;577    this.hitTestSubscriptions_.set(id, { nativeOriginInformation, entityTypes, ray });578    return Promise.resolve({579      result : device.mojom.SubscribeToHitTestResult.SUCCESS,580      subscriptionId : id581    });582  }583  // Utility function584  requestRuntimeSession(sessionOptions) {585    return this.runtimeSupportsSession(sessionOptions).then((result) => {586      // The JavaScript bindings convert c_style_names to camelCase names.587      const options = new device.mojom.XRPresentationTransportOptions();588      options.transportMethod =589          device.mojom.XRPresentationTransportMethod.SUBMIT_AS_MAILBOX_HOLDER;590      options.waitForTransferNotification = true;591      options.waitForRenderNotification = true;592      let submit_frame_sink;593      if (result.supportsSession) {594        submit_frame_sink = {595          clientReceiver: this.presentation_provider_.getClientReceiver(),596          provider: this.presentation_provider_.bindProvider(sessionOptions),597          transportOptions: options598        };599        const dataProviderPtr = new device.mojom.XRFrameDataProviderPtr();600        const dataProviderRequest = mojo.makeRequest(dataProviderPtr);601        this.dataProviderBinding_ = new mojo.Binding(602            device.mojom.XRFrameDataProvider, this, dataProviderRequest);603        const clientReceiver = mojo.makeRequest(this.sessionClient_);604        const enabled_features = [];605        for (let i = 0; i < sessionOptions.requiredFeatures.length; i++) {606          if (this.supportedFeatures_.indexOf(sessionOptions.requiredFeatures[i]) !== -1) {607            enabled_features.push(sessionOptions.requiredFeatures[i]);608          } else {609            return Promise.resolve({session: null});610          }611        }612        for (let i =0; i < sessionOptions.optionalFeatures.length; i++) {613          if (this.supportedFeatures_.indexOf(sessionOptions.optionalFeatures[i]) !== -1) {614            enabled_features.push(sessionOptions.optionalFeatures[i]);615          }616        }617        return Promise.resolve({618          session: {619            submitFrameSink: submit_frame_sink,620            dataProvider: dataProviderPtr,621            clientReceiver: clientReceiver,622            displayInfo: this.displayInfo_,623            enabledFeatures: enabled_features,624          }625        });626      } else {627        return Promise.resolve({session: null});628      }629    });630  }631  runtimeSupportsSession(options) {632    return Promise.resolve({633      supportsSession: this.supportedModes_.includes(options.mode)634    });635  }636  // Private functions - hit test implementation:637  // Modifies passed in frameData to add hit test results.638  _calculateHitTestResults(frameData) {639    if (!this.supportedModes_.includes(device.mojom.XRSessionMode.kImmersiveAr)) {640      return;641    }642    frameData.hitTestSubscriptionResults = new device.mojom.XRHitTestSubscriptionResultsData();643    frameData.hitTestSubscriptionResults.results = [];644    frameData.hitTestSubscriptionResults.transientInputResults = [];645    if (!this.world_) {646      return;647    }648    // Non-transient hit test:649    for (const [id, subscription] of this.hitTestSubscriptions_) {650      const mojo_from_native_origin = this._getMojoFromNativeOrigin(subscription.nativeOriginInformation);651      if (!mojo_from_native_origin) continue;652      const ray_origin = {x: subscription.ray.origin.x, y: subscription.ray.origin.y, z: subscription.ray.origin.z, w: 1};653      const ray_direction = {x: subscription.ray.direction.x, y: subscription.ray.direction.y, z: subscription.ray.direction.z, w: 0};654      const mojo_ray_origin = XRMathHelper.transform_by_matrix(mojo_from_native_origin, ray_origin);655      const mojo_ray_direction = XRMathHelper.transform_by_matrix(mojo_from_native_origin, ray_direction);656      const results = this._hitTestWorld(mojo_ray_origin, mojo_ray_direction, subscription.entityTypes);657      const result = new device.mojom.XRHitTestSubscriptionResultData();658      result.subscriptionId = id;659      result.hitTestResults = results;660      frameData.hitTestSubscriptionResults.results.push(result);661    }662  }663  // Hit tests the passed in ray (expressed as origin and direction) against the mocked world data.664  _hitTestWorld(origin, direction, entityTypes) {665    let result = [];666    for (const region of this.world_.hitTestRegions) {667      const partial_result = this._hitTestRegion(668        region,669        origin, direction,670        entityTypes);671      result = result.concat(partial_result);672    }673    return result.sort((lhs, rhs) => lhs.distance - rhs.distance);674  }675  // Hit tests the passed in ray (expressed as origin and direction) against world region.676  // |entityTypes| is a set of FakeXRRegionTypes.677  // |region| is FakeXRRegion.678  // Returns array of XRHitResults, each entry will be decorated with the distance from the ray origin (along the ray).679  _hitTestRegion(region, origin, direction, entityTypes) {680    const regionNameToMojoEnum = {681      "point":device.mojom.EntityTypeForHitTest.POINT,682      "plane":device.mojom.EntityTypeForHitTest.PLANE,683      "mesh":null684    };685    if (!entityTypes.includes(regionNameToMojoEnum[region.type])) {686      return [];687    }688    const result = [];689    for (const face of region.faces) {690      const maybe_hit = this._hitTestFace(face, origin, direction);691      if (maybe_hit) {692        result.push(maybe_hit);693      }694    }695    // The results should be sorted by distance and there should be no 2 entries with696    // the same distance from ray origin - that would mean they are the same point.697    // This situation is possible when a ray intersects the region through an edge shared698    // by 2 faces.699    return result.sort((lhs, rhs) => lhs.distance - rhs.distance)700                 .filter((val, index, array) => index === 0 || val.distance !== array[index - 1].distance);701  }702  // Hit tests the passed in ray (expressed as origin and direction) against a single face.703  // |face|, |origin|, and |direction| are specified in world (aka mojo) coordinates.704  // |face| is an array of DOMPointInits.705  // Returns null if the face does not intersect with the ray, otherwise the result is706  // an XRHitResult with matrix describing the pose of the intersection point.707  _hitTestFace(face, origin, direction) {708    const add = XRMathHelper.add;709    const sub = XRMathHelper.sub;710    const mul = XRMathHelper.mul;711    const normalize = XRMathHelper.normalize;712    const dot = XRMathHelper.dot;713    const cross = XRMathHelper.cross;714    const neg = XRMathHelper.neg;715    //1. Calculate plane normal in world coordinates.716    const point_A = face[0];717    const point_B = face[1];718    const point_C = face[2];719    const edge_AB = sub(point_B, point_A);720    const edge_AC = sub(point_C, point_A);721    const normal = normalize(cross(edge_AB, edge_AC));722    const numerator = dot(sub(point_A, origin), normal);723    const denominator = dot(direction, normal);724    if (Math.abs(denominator) < 0.0001) {725      // Planes are nearly parallel - there's either infinitely many intersection points or 0.726      // Both cases signify a "no hit" for us.727      return null;728    } else {729      // Single intersection point between the infinite plane and the line (*not* ray).730      // Need to calculate the hit test matrix taking into account the face vertices.731      const distance = numerator / denominator;732      if (distance < 0) {733        // Line - plane intersection exists, but not the half-line - plane does not.734        return null;735      } else {736        const intersection_point = add(origin, mul(distance, direction));737        // Since we are treating the face as a solid, flip the normal so that its738        // half-space will contain the ray origin.739        const y_axis = denominator > 0 ? neg(normal) : normal;740        let z_axis = null;741        const cos_direction_and_y_axis = dot(direction, y_axis);742        if (Math.abs(cos_direction_and_y_axis) > 0.9999) {743          // Ray and the hit test normal are co-linear - try using the 'up' or 'right' vector's projection on the face plane as the Z axis.744          // Note: this edge case is currently not covered by the spec.745          const up = {x: 0.0, y: 1.0, z: 0.0, w: 0.0};746          const right = {x:1.0, y: 0.0, z: 0.0, w: 0.0};747          z_axis = Math.abs(dot(up, y_axis)) > 0.9999748                        ? sub(up, mul(dot(right, y_axis), y_axis))  // `up is also co-linear with hit test normal, use `right`749                        : sub(up, mul(dot(up, y_axis), y_axis));    // `up` is not co-linear with hit test normal, use it750        } else {751          // Project the ray direction onto the plane, negate it and use as a Z axis.752          z_axis = neg(sub(direction, mul(cos_direction_and_y_axis, y_axis))); // Z should point towards the ray origin, not away.753        }754        const x_axis = normalize(cross(y_axis, z_axis));755        // Filter out the points not in polygon.756        if (!XRMathHelper.pointInFace(intersection_point, face)) {757          return null;758        }759        const hitResult = new device.mojom.XRHitResult();760        hitResult.hitMatrix = new gfx.mojom.Transform();761        hitResult.distance = distance;  // Extend the object with additional information used by higher layers.762                                        // It will not be serialized over mojom.763        hitResult.hitMatrix.matrix = new Array(16);764        hitResult.hitMatrix.matrix[0] = x_axis.x;765        hitResult.hitMatrix.matrix[1] = x_axis.y;766        hitResult.hitMatrix.matrix[2] = x_axis.z;767        hitResult.hitMatrix.matrix[3] = 0;768        hitResult.hitMatrix.matrix[4] = y_axis.x;769        hitResult.hitMatrix.matrix[5] = y_axis.y;770        hitResult.hitMatrix.matrix[6] = y_axis.z;771        hitResult.hitMatrix.matrix[7] = 0;772        hitResult.hitMatrix.matrix[8] = z_axis.x;773        hitResult.hitMatrix.matrix[9] = z_axis.y;774        hitResult.hitMatrix.matrix[10] = z_axis.z;775        hitResult.hitMatrix.matrix[11] = 0;776        hitResult.hitMatrix.matrix[12] = intersection_point.x;777        hitResult.hitMatrix.matrix[13] = intersection_point.y;778        hitResult.hitMatrix.matrix[14] = intersection_point.z;779        hitResult.hitMatrix.matrix[15] = 1;780        return hitResult;781      }782    }783  }784  _getMojoFromNativeOrigin(nativeOriginInformation) {785    const identity = function() {786      return [787        1, 0, 0, 0,788        0, 1, 0, 0,789        0, 0, 1, 0,790        0, 0, 0, 1791      ];792    };793    if (nativeOriginInformation.$tag == device.mojom.XRNativeOriginInformation.Tags.inputSourceId) {794      if (!this.input_sources_.has(nativeOriginInformation.inputSourceId)) {795        return null;796      } else {797        const inputSource = this.input_sources_.get(nativeOriginInformation.inputSourceId);798        return inputSource.mojo_from_input_.matrix;799      }800    } else if (nativeOriginInformation.$tag == device.mojom.XRNativeOriginInformation.Tags.referenceSpaceCategory) {801      switch (nativeOriginInformation.referenceSpaceCategory) {802        case device.mojom.XRReferenceSpaceCategory.LOCAL:803          return identity();804        case device.mojom.XRReferenceSpaceCategory.LOCAL_FLOOR:805          if (this.stageParameters_ == null || this.stageParameters_.standingTransform == null) {806            console.warn("Standing transform not available.");807            return null;808          }809          // this.stageParameters_.standingTransform = floor_from_mojo aka native_origin_from_mojo810          return XRMathHelper.inverse(this.stageParameters_.standingTransform.matrix);811        case device.mojom.XRReferenceSpaceCategory.VIEWER:812          const transform = {813            position: [814              this.pose_.position.x,815              this.pose_.position.y,816              this.pose_.position.z],817            orientation: [818              this.pose_.orientation.x,819              this.pose_.orientation.y,820              this.pose_.orientation.z,821              this.pose_.orientation.w],822          };823          return getMatrixFromTransform(transform);  // this.pose_ = mojo_from_viewer824        case device.mojom.XRReferenceSpaceCategory.BOUNDED_FLOOR:825          return null;826        case device.mojom.XRReferenceSpaceCategory.UNBOUNDED:827          return null;828        default:829          throw new TypeError("Unrecognized XRReferenceSpaceCategory!");830      }831    } else {832      // Anchors & planes are not yet supported for hit test.833      return null;834    }835  }836}837class MockXRSessionMetricsRecorder {838  reportFeatureUsed(feature) {839    // Do nothing840  }841}842class MockXRInputSource {843  constructor(fakeInputSourceInit, id, pairedDevice) {844    this.source_id_ = id;845    this.pairedDevice_ = pairedDevice;846    this.handedness_ = fakeInputSourceInit.handedness;847    this.target_ray_mode_ = fakeInputSourceInit.targetRayMode;848    this.setPointerOrigin(fakeInputSourceInit.pointerOrigin);849    this.setProfiles(fakeInputSourceInit.profiles);850    this.primary_input_pressed_ = false;851    if (fakeInputSourceInit.selectionStarted != null) {852      this.primary_input_pressed_ = fakeInputSourceInit.selectionStarted;853    }854    this.primary_input_clicked_ = false;855    if (fakeInputSourceInit.selectionClicked != null) {856      this.primary_input_clicked_ = fakeInputSourceInit.selectionClicked;857    }858    this.primary_squeeze_pressed_ = false;859    this.primary_squeeze_clicked_ = false;860    this.mojo_from_input_ = null;861    if (fakeInputSourceInit.gripOrigin != null) {862      this.setGripOrigin(fakeInputSourceInit.gripOrigin);863    }864    // This properly handles if supportedButtons were not specified.865    this.setSupportedButtons(fakeInputSourceInit.supportedButtons);866    this.emulated_position_ = false;867    this.desc_dirty_ = true;868  }869  // Webxr-test-api870  setHandedness(handedness) {871    if (this.handedness_ != handedness) {872      this.desc_dirty_ = true;873      this.handedness_ = handedness;874    }875  }876  setTargetRayMode(targetRayMode) {877    if (this.target_ray_mode_ != targetRayMode) {878      this.desc_dirty_ = true;879      this.target_ray_mode_ = targetRayMode;880    }881  }882  setProfiles(profiles) {883    this.desc_dirty_ = true;884    this.profiles_ = profiles;885  }886  setGripOrigin(transform, emulatedPosition = false) {887    // grip_origin was renamed to mojo_from_input in mojo888    this.mojo_from_input_ = new gfx.mojom.Transform();889    this.mojo_from_input_.matrix = getMatrixFromTransform(transform);890    this.emulated_position_ = emulatedPosition;891  }892  clearGripOrigin() {893    // grip_origin was renamed to mojo_from_input in mojo894    if (this.mojo_from_input_ != null) {895      this.mojo_from_input_ = null;896      this.emulated_position_ = false;897    }898  }899  setPointerOrigin(transform, emulatedPosition = false) {900    // pointer_origin was renamed to input_from_pointer in mojo901    this.desc_dirty_ = true;902    this.input_from_pointer_ = new gfx.mojom.Transform();903    this.input_from_pointer_.matrix = getMatrixFromTransform(transform);904    this.emulated_position_ = emulatedPosition;905  }906  disconnect() {907    this.pairedDevice_.removeInputSource(this);908  }909  reconnect() {910    this.pairedDevice_.addInputSource(this);911  }912  startSelection() {913    this.primary_input_pressed_ = true;914    if (this.gamepad_) {915      this.gamepad_.buttons[0].pressed = true;916      this.gamepad_.buttons[0].touched = true;917    }918  }919  endSelection() {920    if (!this.primary_input_pressed_) {921      throw new Error("Attempted to end selection which was not started");922    }923    this.primary_input_pressed_ = false;924    this.primary_input_clicked_ = true;925    if (this.gamepad_) {926      this.gamepad_.buttons[0].pressed = false;927      this.gamepad_.buttons[0].touched = false;928    }929  }930  simulateSelect() {931    this.primary_input_clicked_ = true;932  }933  setSupportedButtons(supportedButtons) {934    this.gamepad_ = null;935    this.supported_buttons_ = [];936    // If there are no supported buttons, we can stop now.937    if (supportedButtons == null || supportedButtons.length < 1) {938      return;939    }940    const supported_button_map = {};941    this.gamepad_ = this.getEmptyGamepad();942    for (let i = 0; i < supportedButtons.length; i++) {943      const buttonType = supportedButtons[i].buttonType;944      this.supported_buttons_.push(buttonType);945      supported_button_map[buttonType] = supportedButtons[i];946    }947    // Let's start by building the button state in order of priority:948    // Primary button is index 0.949    this.gamepad_.buttons.push({950      pressed: this.primary_input_pressed_,951      touched: this.primary_input_pressed_,952      value: this.primary_input_pressed_ ? 1.0 : 0.0953    });954    // Now add the rest of our buttons955    this.addGamepadButton(supported_button_map['grip']);956    this.addGamepadButton(supported_button_map['touchpad']);957    this.addGamepadButton(supported_button_map['thumbstick']);958    this.addGamepadButton(supported_button_map['optional-button']);959    this.addGamepadButton(supported_button_map['optional-thumbstick']);960    // Finally, back-fill placeholder buttons/axes961    for (let i = 0; i < this.gamepad_.buttons.length; i++) {962      if (this.gamepad_.buttons[i] == null) {963        this.gamepad_.buttons[i] = {964          pressed: false,965          touched: false,966          value: 0967        };968      }969    }970    for (let i=0; i < this.gamepad_.axes.length; i++) {971      if (this.gamepad_.axes[i] == null) {972        this.gamepad_.axes[i] = 0;973      }974    }975  }976  updateButtonState(buttonState) {977    if (this.supported_buttons_.indexOf(buttonState.buttonType) == -1) {978      throw new Error("Tried to update state on an unsupported button");979    }980    const buttonIndex = this.getButtonIndex(buttonState.buttonType);981    const axesStartIndex = this.getAxesStartIndex(buttonState.buttonType);982    if (buttonIndex == -1) {983      throw new Error("Unknown Button Type!");984    }985    // is this a 'squeeze' button?986    if (buttonIndex === this.getButtonIndex('grip')) {987      // squeeze988      if (buttonState.pressed) {989        this.primary_squeeze_pressed_ = true;990      } else if (this.gamepad_.buttons[buttonIndex].pressed) {991        this.primary_squeeze_clicked_ = true;992        this.primary_squeeze_pressed_ = false;993      } else {994        this.primary_squeeze_clicked_ = false;995        this.primary_squeeze_pressed_ = false;996      }997    }998    this.gamepad_.buttons[buttonIndex].pressed = buttonState.pressed;999    this.gamepad_.buttons[buttonIndex].touched = buttonState.touched;1000    this.gamepad_.buttons[buttonIndex].value = buttonState.pressedValue;1001    if (axesStartIndex != -1) {1002      this.gamepad_.axes[axesStartIndex] = buttonState.xValue == null ? 0.0 : buttonState.xValue;1003      this.gamepad_.axes[axesStartIndex + 1] = buttonState.yValue == null ? 0.0 : buttonState.yValue;1004    }1005  }1006  // Helpers for Mojom1007  getInputSourceState() {1008    const input_state = new device.mojom.XRInputSourceState();1009    input_state.sourceId = this.source_id_;1010    input_state.primaryInputPressed = this.primary_input_pressed_;1011    input_state.primaryInputClicked = this.primary_input_clicked_;1012    input_state.primarySqueezePressed = this.primary_squeeze_pressed_;1013    input_state.primarySqueezeClicked = this.primary_squeeze_clicked_;1014    // Setting the input source's "clicked" state should generate one "select"1015    // event. Reset the input value to prevent it from continuously generating1016    // events.1017    this.primary_input_clicked_ = false;1018    // Setting the input source's "clicked" state should generate one "squeeze"1019    // event. Reset the input value to prevent it from continuously generating1020    // events.1021    this.primary_squeeze_clicked_ = false;1022    input_state.mojoFromInput = this.mojo_from_input_;1023    input_state.gamepad = this.gamepad_;1024    input_state.emulatedPosition = this.emulated_position_;1025    if (this.desc_dirty_) {1026      const input_desc = new device.mojom.XRInputSourceDescription();1027      switch (this.target_ray_mode_) {1028        case 'gaze':1029          input_desc.targetRayMode = device.mojom.XRTargetRayMode.GAZING;1030          break;1031        case 'tracked-pointer':1032          input_desc.targetRayMode = device.mojom.XRTargetRayMode.POINTING;1033          break;1034        case 'screen':1035          input_desc.targetRayMode = device.mojom.XRTargetRayMode.TAPPING;1036          break;1037        default:1038          throw new Error('Unhandled target ray mode ' + this.target_ray_mode_);1039      }1040      switch (this.handedness_) {1041        case 'left':1042          input_desc.handedness = device.mojom.XRHandedness.LEFT;1043          break;1044        case 'right':1045          input_desc.handedness = device.mojom.XRHandedness.RIGHT;1046          break;1047        default:1048          input_desc.handedness = device.mojom.XRHandedness.NONE;1049          break;1050      }1051      input_desc.inputFromPointer = this.input_from_pointer_;1052      input_desc.profiles = this.profiles_;1053      input_state.description = input_desc;1054      this.desc_dirty_ = false;1055    }1056    // Pointer data for DOM Overlay, set by setOverlayPointerPosition()1057    if (this.overlay_pointer_position_) {1058      input_state.overlayPointerPosition = this.overlay_pointer_position_;1059      this.overlay_pointer_position_ = null;1060    }1061    return input_state;1062  }1063  setOverlayPointerPosition(x, y) {1064    this.overlay_pointer_position_ = {x: x, y: y};1065  }1066  getEmptyGamepad() {1067    // Mojo complains if some of the properties on Gamepad are null, so set1068    // everything to reasonable defaults that tests can override.1069    const gamepad = {1070      connected: true,1071      id: "",1072      timestamp: 0,1073      axes: [],1074      buttons: [],1075      mapping: "xr-standard",1076      display_id: 0,1077    };1078    switch (this.handedness_) {1079      case 'left':1080      gamepad.hand = device.mojom.GamepadHand.GamepadHandLeft;1081      break;1082      case 'right':1083      gamepad.hand = device.mojom.GamepadHand.GamepadHandRight;1084      break;1085      default:1086      gamepad.hand = device.mojom.GamepadHand.GamepadHandNone;1087      break;1088    }1089    return gamepad;1090  }1091  addGamepadButton(buttonState) {1092    if (buttonState == null) {1093      return;1094    }1095    const buttonIndex = this.getButtonIndex(buttonState.buttonType);1096    const axesStartIndex = this.getAxesStartIndex(buttonState.buttonType);1097    if (buttonIndex == -1) {1098      throw new Error("Unknown Button Type!");1099    }1100    this.gamepad_.buttons[buttonIndex] = {1101      pressed: buttonState.pressed,1102      touched: buttonState.touched,1103      value: buttonState.pressedValue1104    };1105    // Add x/y value if supported.1106    if (axesStartIndex != -1) {1107      this.gamepad_.axes[axesStartIndex] = (buttonState.xValue == null ? 0.0 : buttonSate.xValue);1108      this.gamepad_.axes[axesStartIndex + 1] = (buttonState.yValue == null ? 0.0 : buttonSate.yValue);1109    }1110  }1111  // General Helper methods1112  getButtonIndex(buttonType) {1113    switch (buttonType) {1114      case 'grip':1115        return 1;1116      case 'touchpad':1117        return 2;1118      case 'thumbstick':1119        return 3;1120      case 'optional-button':1121        return 4;1122      case 'optional-thumbstick':1123        return 5;1124      default:1125        return -1;1126    }1127  }1128  getAxesStartIndex(buttonType) {1129    switch (buttonType) {1130      case 'touchpad':1131        return 0;1132      case 'thumbstick':1133        return 2;1134      case 'optional-thumbstick':1135        return 4;1136      default:1137        return -1;1138    }1139  }1140}1141// Mojo helper classes1142class MockXRPresentationProvider {1143  constructor() {1144    this.binding_ = new mojo.Binding(device.mojom.XRPresentationProvider, this);1145    this.submit_frame_count_ = 0;1146    this.missing_frame_count_ = 0;1147  }1148  bindProvider(request) {1149    const providerPtr = new device.mojom.XRPresentationProviderPtr();1150    const providerRequest = mojo.makeRequest(providerPtr);1151    this.binding_.close();1152    this.binding_ = new mojo.Binding(1153        device.mojom.XRPresentationProvider, this, providerRequest);1154    return providerPtr;1155  }1156  getClientReceiver() {1157    this.submitFrameClient_ = new device.mojom.XRPresentationClientPtr();1158    return mojo.makeRequest(this.submitFrameClient_);1159  }1160  // XRPresentationProvider mojo implementation1161  submitFrameMissing(frameId, mailboxHolder, timeWaited) {1162    this.missing_frame_count_++;1163  }1164  submitFrame(frameId, mailboxHolder, timeWaited) {1165    this.submit_frame_count_++;1166    // Trigger the submit completion callbacks here. WARNING: The1167    // Javascript-based mojo mocks are *not* re-entrant. It's OK to1168    // wait for these notifications on the next frame, but waiting1169    // within the current frame would never finish since the incoming1170    // calls would be queued until the current execution context finishes.1171    this.submitFrameClient_.onSubmitFrameTransferred(true);1172    this.submitFrameClient_.onSubmitFrameRendered();1173  }1174  // Utility methods1175  Close() {1176    this.binding_.close();1177  }1178}1179// This is a temporary workaround for the fact that spinning up webxr before1180// the mojo interceptors are created will cause the interceptors to not get1181// registered, so we have to create this before we query xr;1182const XRTest = new ChromeXRTest();1183// This test API is also used to run Chrome's internal legacy VR tests; however,1184// those fail if navigator.xr has been used. Those tests will set a bool telling1185// us not to try to check navigator.xr1186if ((typeof legacy_vr_test === 'undefined') || !legacy_vr_test) {1187  // Some tests may run in the http context where navigator.xr isn't exposed1188  // This should just be to test that it isn't exposed, but don't try to set up1189  // the test framework in this case.1190  if (navigator.xr) {1191    navigator.xr.test = XRTest;1192  }1193} else {1194  navigator.vr = { test: XRTest };...

Using AI Code Generation

1var wpt = require('wpt')2var angle = cos_direction_and_y_axis(0, 0, 5, 5)3console.log(angle)4var wpt = require('wpt')5var angle = cos_direction_and_y_axis(0, 0, 5, 5)6console.log(angle)7var wpt = require('wpt')8var angle = cos_direction_and_y_axis(0, 0, 5, 5)9console.log(angle)10var wpt = require('wpt')11var angle = cos_direction_and_y_axis(0, 0, 5, 5)12console.log(angle)13var wpt = require('wpt')14var angle = cos_direction_and_y_axis(0, 0, 5, 5)15console.log(angle)16var wpt = require('wpt')17var angle = cos_direction_and_y_axis(0, 0, 5, 5)18console.log(angle)19var wpt = require('wpt')20var angle = cos_direction_and_y_axis(0, 0, 5, 5)21console.log(angle)22var wpt = require('wpt')

Using AI Code Generation

1var wpt = require('wpt');2wpt.cos_direction_and_y_axis(0, 0, 1, 0, 1, 0);3var wpt = require('wpt');4wpt.cos_direction_and_y_axis(0, 0, 1, 0, .5, 0);5var wpt = require('wpt');6wpt.cos_direction_and_y_axis(0, 0, 1, 0, 0, 0);7var wpt = require('wpt');8wpt.cos_direction_and_y_axis(0, 0, 1, 0, -1, 0);9var wpt = require('wpt');10wpt.cos_direction_and_y_axis(0, 0, 1, 0, -1, -1);11var wpt = require('wpt');12wpt.cos_direction_and_y_axis(0, 0, 1, 0, 0, -1);13var wpt = require('wpt');14wpt.cos_direction_and_y_axis(0, 0, 1, 0, 1, -1);15var wpt = require('wpt');16wpt.cos_direction_and_y_axis(0, 0, 1, 0, 1, 1);

Using AI Code Generation

1var wpt = require('./wpt.js');2var mywpt = new wpt(0,0,0,0,0,0);3console.log(mywpt.cos_direction_and_y_axis(1,1,1,1,1,1));4var wpt = function(x,y,z,hdg,pitch,roll) {5    this.x = x;6    this.y = y;7    this.z = z;8    this.hdg = hdg;9    this.pitch = pitch;10    this.roll = roll;11};12wpt.prototype.cos_direction_and_y_axis = function(x, y, z, hdg, pitch, roll) {13    var dx = x - this.x;14    var dy = y - this.y;15    var dz = z - this.z;16    var d = Math.sqrt(dx * dx + dy * dy + dz * dz);17    var cos = (dx * Math.sin(hdg) - dy * Math.cos(hdg)) / d;18    return cos;19};20module.exports = wpt;21var wpt = function(x,y,z,hdg,pitch,roll) {22    this.x = x;23    this.y = y;24    this.z = z;25    this.hdg = hdg;26    this.pitch = pitch;27    this.roll = roll;28};

Using AI Code Generation

1var wpt = require('wpt.js');2var cos = wpt.cos_direction_and_y_axis(0,0,1,0,0,1,1,0,0);3console.log(cos);4cos_direction_and_y_axis: function(x1,y1,z1,x2,y2,z2,x3,y3,z3){5    var v1 = [x2-x1,y2-y1,z2-z1];6    var v2 = [x3-x1,y3-y1,z3-z1];7    var v1_length = Math.sqrt(v1[0]*v1[0]+v1[1]*v1[1]+v1[2]*v1[2]);8    var v2_length = Math.sqrt(v2[0]*v2[0]+v2[1]*v2[1]+v2[2]*v2[2]);9    var cos = (v1[0]*v2[0]+v1[1]*v2[1]+v1[2]*v2[2])/(v1_length*v2_length);10    return cos;11},12var wpt = require('./wpt.js');13var cos = wpt.cos_direction_and_y_axis(0,0,1,0,0,1,1,0,0);14console.log(cos);15exports.cos_direction_and_y_axis = function(x1,y1,z1,x2,y2,z2,x3,y3,z3){16    var v1 = [x2-x1,y2-y1,z2-z1];17    var v2 = [x3-x1,y3-y1,z3-z1];18    var v1_length = Math.sqrt(v1[0]*v1[0]+v1[1]*v1[1]+v1[2]*v1[2]);19    var v2_length = Math.sqrt(v2[0]*v2[0]+v2[1]*v2[1]+v2[2]*v2[2]);20    var cos = (v1[0]*v2[0]+v1[1]*v2[1]+

Using AI Code Generation

1var wpt = require('wpt.js');2var wpt = new wpt();3var lat1 = 0;4var lon1 = 0;5var lat2 = 0;6var lon2 = 0;7var y = 0;8var result = wpt.cos_direction_and_y_axis(lat1, lon1, lat2, lon2, y);9console.log(result);

Using AI Code Generation

1var wptools = require('wptools');2var wp = new wptools.page('Eiffel Tower');3wp.fetch(function(err, resp) {4  if (err) {5    console.log(err);6  } else {7    console.log(resp);8  }9});

Using AI Code Generation

1var wpt = require('./wpt');2var cos = wpt.cos_direction_and_y_axis(0, 0, 1, 1);3console.log(cos);4var wpt = require('./wpt');5module.exports = {6    cos_direction_and_y_axis: function(x1, y1, x2, y2) {7        var dx = x2 - x1;8        var dy = y2 - y1;9        return dx / Math.sqrt(dx * dx + dy * dy);10    }11};12I am trying to get the cosine of the angle between the x-axis and the ray from (x1

Using AI Code Generation

1var wptools = require('./wptools.js');2var y = wptools.cos_direction_and_y_axis(1,1,2,2);3console.log(y);4var wptools = {5  cos_direction_and_y_axis: function(x1, y1, x2, y2) {6    var dx = x2 - x1;7    var dy = y2 - y1;8    return dy / Math.sqrt(dx * dx + dy * dy);9  }10};11module.exports = wptools;12var wptools = require('./wptools.js');13var y = wptools.cos_direction_and_y_axis(1,1,2,2);14console.log(y);15var fs = require('fs');16var file = fs.readFileSync('test.txt', 'utf8');17fs.writeFileSync('test2.txt', file);18I am trying to use the require() function in Node.js to use the fs module. I am doing this in the following way:19var fs = require('fs');20var file = fs.readFileSync('test.txt', 'utf8');21fs.writeFileSync('test2.txt', file);22I think this is because I am using the require() function, but I do not

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.