awv3/plugins/sketcher/constraint/generator.js

⚡ AWV3 embedded CAD

'use strict';

Object.defineProperty(exports, "__esModule", {
    value: true
});

var _getIterator2 = require('babel-runtime/core-js/get-iterator');

var _getIterator3 = _interopRequireDefault(_getIterator2);

var _classCallCheck2 = require('babel-runtime/helpers/classCallCheck');

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = require('babel-runtime/helpers/createClass');

var _createClass3 = _interopRequireDefault(_createClass2);

var _geomutils = require('../geomutils');

var _adder = require('./adder');

var _adder2 = _interopRequireDefault(_adder);

var _type = require('./type');

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

var ConstraintGenerator = function () {
    function ConstraintGenerator(sketch) {
        (0, _classCallCheck3.default)(this, ConstraintGenerator);

        this.sketch = sketch;
        this.adder = new _adder2.default(this.sketch);

        this.generate = {
            horizontality: true,
            verticality: true,
            pointCoincidence: true,
            tangency: true
        };
    }

    // generate implied constraints which are somehow related to "relatedTo" object


    (0, _createClass3.default)(ConstraintGenerator, [{
        key: 'generateImpliedConstraints',
        value: function generateImpliedConstraints(relatedTo) {
            var _iteratorNormalCompletion = true;
            var _didIteratorError = false;
            var _iteratorError = undefined;

            try {
                for (var _iterator = (0, _getIterator3.default)(relatedTo.descendants), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
                    var baseObj = _step.value;

                    if (baseObj.isLine()) {
                        // generate implied horizontality or verticality
                        var vec = (0, _geomutils.getTangent)(baseObj.geomParams); // unit vector or zero
                        if (vec.lengthSq() === 0) continue;
                        if (Math.abs(vec.y) <= ConstraintGenerator.angularTolerance) this.adder.add(_type.horizontality, [baseObj], { fixed: true, noVisualize: true });
                        if (Math.abs(vec.x) <= ConstraintGenerator.angularTolerance) this.adder.add(_type.verticality, [baseObj], { fixed: true, noVisualize: true });
                    }

                    if (!baseObj.isPoint()) continue;
                    var basePar = baseObj.parent;
                    var _iteratorNormalCompletion2 = true;
                    var _didIteratorError2 = false;
                    var _iteratorError2 = undefined;

                    try {
                        for (var _iterator2 = (0, _getIterator3.default)(this.sketch.descendants), _step2; !(_iteratorNormalCompletion2 = (_step2 = _iterator2.next()).done); _iteratorNormalCompletion2 = true) {
                            var otherObj = _step2.value;

                            // generate implied incidence of points
                            if (!otherObj.isPoint()) continue;
                            var basePos = baseObj.geomParams.start,
                                otherPos = otherObj.geomParams.start;
                            if (basePos.distanceTo(otherPos) > ConstraintGenerator.linearTolerance) continue;
                            this.adder.add(_type.incidence, [baseObj, otherObj], { noVisualize: true });

                            var otherPar = otherObj.parent;
                            // generate implied tangency of touching endpoints
                            if (!baseObj.isSubPoint() || !otherObj.isSubPoint() || basePar.id === otherPar.id) continue;
                            if (baseObj.isCenterPoint() || otherObj.isCenterPoint()) continue;
                            var baseDir = (0, _geomutils.getTangent)(basePar.geomParams, basePos),
                                otherDir = (0, _geomutils.getTangent)(otherPar.geomParams, otherPos);
                            if (baseDir.lengthSq() === 0 || otherDir.lengthSq() === 0) continue;
                            if (Math.abs(baseDir.cross(otherDir).z) > ConstraintGenerator.angularTolerance) continue;
                            var type = basePar.isLine() && otherPar.isLine() ? _type.incidence : _type.tangency;
                            this.adder.add(type, [basePar, otherPar], { noVisualize: true });
                        }
                    } catch (err) {
                        _didIteratorError2 = true;
                        _iteratorError2 = err;
                    } finally {
                        try {
                            if (!_iteratorNormalCompletion2 && _iterator2.return) {
                                _iterator2.return();
                            }
                        } finally {
                            if (_didIteratorError2) {
                                throw _iteratorError2;
                            }
                        }
                    }
                }
            } catch (err) {
                _didIteratorError = true;
                _iteratorError = err;
            } finally {
                try {
                    if (!_iteratorNormalCompletion && _iterator.return) {
                        _iterator.return();
                    }
                } finally {
                    if (_didIteratorError) {
                        throw _iteratorError;
                    }
                }
            }

            return this.adder.commit();
        }
    }]);
    return ConstraintGenerator;
}();

ConstraintGenerator.angularTolerance = 1e-6;
ConstraintGenerator.linearTolerance = 1e-6;
exports.default = ConstraintGenerator;