itowns/lib/Renderer/OrientedImageCamera.js

A JS/WebGL framework for 3D geospatial data visualization

"use strict";

var _interopRequireWildcard = require("@babel/runtime/helpers/interopRequireWildcard");

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports["default"] = void 0;

var _possibleConstructorReturn2 = _interopRequireDefault(require("@babel/runtime/helpers/possibleConstructorReturn"));

var _assertThisInitialized2 = _interopRequireDefault(require("@babel/runtime/helpers/assertThisInitialized"));

var _getPrototypeOf2 = _interopRequireDefault(require("@babel/runtime/helpers/getPrototypeOf"));

var _get2 = _interopRequireDefault(require("@babel/runtime/helpers/get"));

var _inherits2 = _interopRequireDefault(require("@babel/runtime/helpers/inherits"));

var _classCallCheck2 = _interopRequireDefault(require("@babel/runtime/helpers/classCallCheck"));

var _createClass2 = _interopRequireDefault(require("@babel/runtime/helpers/createClass"));

var THREE = _interopRequireWildcard(require("three"));

var Distortion =
/*#__PURE__*/
function () {
  function Distortion(size) {
    (0, _classCallCheck2["default"])(this, Distortion);
    this.size = size;
    this.pps = null;
    this.polynom = null;
    this.l1l2 = null;
  }

  (0, _createClass2["default"])(Distortion, [{
    key: "setFromMicmacCalibration",
    value: function setFromMicmacCalibration(distortion) {
      var imageYDown = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : true;
      this.pps = new THREE.Vector2().fromArray(distortion.pps);
      this.polynom = new THREE.Vector4().fromArray(distortion.poly357);
      this.l1l2 = new THREE.Vector3(); // inverse Y pps convention image micmac

      this.pps.y = imageYDown ? this.size.y - this.pps.y : this.pps.y;
      this.polynom.w = Math.pow(distortion.limit, 2);

      if (distortion.l1l2) {
        this.l1l2.fromArray(distortion.l1l2);
        this.l1l2.z = distortion.etats;
      }
    }
  }, {
    key: "clone",
    value: function clone() {
      var dest = new Distortion(this.size.clone());
      dest.pps = this.pps.clone();
      dest.polynom = this.polynom.clone();
      dest.l1l2 = this.l1l2.clone();
      return dest;
    }
  }]);
  return Distortion;
}();

var zoom = new THREE.Vector3();
/**
 * @classdesc OrientedImageCamera is a ThreeJs camera adapted to photogrammetric description.
 * So we can build a ThreeJs perspective camera from size and focal information.
 */

var OrientedImageCamera =
/*#__PURE__*/
function (_THREE$PerspectiveCam) {
  (0, _inherits2["default"])(OrientedImageCamera, _THREE$PerspectiveCam);

  /**
   * @constructor
   * @param {number|Vector2} size - image size in pixels (default: x=1024, y=x)
   * @param {number|Vector2} focal - focal length in pixels (default: x=1024, y=x)
   * @param {Vector2} center - principal point in pixels (default: size/2)
   * @param {number} near - Camera frustum near plane (default: see THREE.PerspectiveCamera).
   * @param {number} far - Camera frustum far plane (default: see THREE.PerspectiveCamera).
   * @param {number} skew - shear transform parameter (default: 0)
   * @param {number} aspect - aspect ratio of the camera (default: size.x/size.y).
   */
  function OrientedImageCamera() {
    var _this;

    var size = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 1024;
    var focal = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 1024;
    var center = arguments.length > 2 ? arguments[2] : undefined;
    var near = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : 0.1;
    var far = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : 10000;
    var skew = arguments.length > 5 ? arguments[5] : undefined;
    var aspect = arguments.length > 6 ? arguments[6] : undefined;
    (0, _classCallCheck2["default"])(this, OrientedImageCamera);
    size = size.isVector2 ? size : new THREE.Vector2(size, size);
    aspect = aspect || size.x / size.y;
    _this = (0, _possibleConstructorReturn2["default"])(this, (0, _getPrototypeOf2["default"])(OrientedImageCamera).call(this, undefined, aspect, near, far));
    _this.size = size;
    _this.focal = focal.isVector2 ? focal : new THREE.Vector2(focal, focal);
    _this.center = center || size.clone().multiplyScalar(0.5);
    _this.skew = skew || 0;
    _this.textureMatrixWorldInverse = new THREE.Matrix4();
    Object.defineProperty((0, _assertThisInitialized2["default"])(_this), 'fov', {
      get: function get() {
        return 2 * THREE.Math.radToDeg(Math.atan2(_this.size.y, 2 * _this.focal.y));
      },
      // setting the fov overwrites focal.x and focal.y
      set: function set(fov) {
        var focal = 0.5 * _this.size.y / Math.tan(THREE.Math.degToRad(fov * 0.5));
        _this.focal.x = focal;
        _this.focal.y = focal;
      }
    });
    _this.distortion = new Distortion(_this.size);
    _this.maskPath = undefined;
    _this.mask = undefined;

    _this.updateProjectionMatrix();

    return _this;
  } // we override PerspectiveCamera.updateProjectionMatrix to
  // update the projection matrix depending on other variables
  // focal, center and size...


  (0, _createClass2["default"])(OrientedImageCamera, [{
    key: "updateProjectionMatrix",
    value: function updateProjectionMatrix() {
      if (!this.focal) {
        return;
      }

      var near = this.near;
      var sx = near / this.focal.x;
      var sy = near / this.focal.y;
      var left = -sx * this.center.x;
      var bottom = -sy * this.center.y;
      var right = left + sx * this.size.x;
      var top = bottom + sy * this.size.y;
      this.projectionMatrix.makePerspective(left, right, top, bottom, near, this.far);
      this.projectionMatrix.elements[4] = 2 * this.skew / this.size.x; // take zoom and aspect into account

      var textureAspect = this.size.x / this.size.y;
      var aspectRatio = this.aspect / textureAspect;
      zoom.set(this.zoom, this.zoom, 1);

      if (aspectRatio > 1) {
        zoom.x /= aspectRatio;
      } else {
        zoom.y *= aspectRatio;
      }

      this.projectionMatrix.scale(zoom);
    }
  }, {
    key: "copy",
    value: function copy(source, recursive) {
      (0, _get2["default"])((0, _getPrototypeOf2["default"])(OrientedImageCamera.prototype), "copy", this).call(this, source, recursive);
      this.size = source.size.clone();
      this.focal = source.focal.clone();
      this.center = source.center.clone();
      this.distortion = source.distortion.clone();
      this.textureMatrixWorldInverse = source.textureMatrixWorldInverse.clone();
      this.skew = source.skew;
      this.maskPath = source.maskPath;
      this.mask = source.mask;
      return this;
    }
  }]);
  return OrientedImageCamera;
}(THREE.PerspectiveCamera);

var _default = OrientedImageCamera;
exports["default"] = _default;