forked from enviPath/enviPy
97 lines
2.9 KiB
JavaScript
97 lines
2.9 KiB
JavaScript
/****************************************************************************
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* Copyright 2017 EPAM Systems
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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***************************************************************************/
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var Vec2 = require('./vec2');
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function Box2Abs() {
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if (arguments.length == 1 && 'min' in arguments[0] && 'max' in arguments[0]) {
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this.p0 = arguments[0].min;
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this.p1 = arguments[0].max;
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}
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if (arguments.length == 2) {
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this.p0 = arguments[0];
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this.p1 = arguments[1];
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} else if (arguments.length == 4) {
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this.p0 = new Vec2(arguments[0], arguments[1]);
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this.p1 = new Vec2(arguments[2], arguments[3]);
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} else if (arguments.length == 0) {
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this.p0 = new Vec2();
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this.p1 = new Vec2();
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} else {
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new Error('Box2Abs constructor only accepts 4 numbers or 2 vectors or no arguments!');
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}
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}
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Box2Abs.prototype.toString = function () {
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return this.p0.toString() + ' ' + this.p1.toString();
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};
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Box2Abs.fromRelBox = function (relBox) {
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console.assert(!!relBox);
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return new Box2Abs(relBox.x, relBox.y, relBox.x + relBox.width, relBox.y + relBox.height);
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};
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Box2Abs.prototype.clone = function () {
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return new Box2Abs(this.p0, this.p1);
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};
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Box2Abs.union = function (/* Box2Abs*/b1, /* Box2Abs*/b2) {
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console.assert(!!b1);
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console.assert(!!b2);
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return new Box2Abs(Vec2.min(b1.p0, b2.p0), Vec2.max(b1.p1, b2.p1));
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};
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Box2Abs.prototype.extend = function (/* Vec2*/lp, /* Vec2*/rb) {
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console.assert(!!lp);
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rb = rb || lp;
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return new Box2Abs(this.p0.sub(lp), this.p1.add(rb));
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};
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Box2Abs.prototype.include = function (/* Vec2*/p) {
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console.assert(!!p);
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return new Box2Abs(this.p0.min(p), this.p1.max(p));
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};
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Box2Abs.prototype.contains = function (/* Vec2*/p, /* float*/ext) {
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ext = (ext || 0) - 0;
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console.assert(!!p);
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return p.x >= this.p0.x - ext && p.x <= this.p1.x + ext && p.y >= this.p0.y - ext && p.y <= this.p1.y + ext;
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};
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Box2Abs.prototype.translate = function (/* Vec2*/d) {
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console.assert(!!d);
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return new Box2Abs(this.p0.add(d), this.p1.add(d));
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};
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Box2Abs.prototype.transform = function (/* function(Vec2):Vec2*/f, options) {
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console.assert(!!f);
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return new Box2Abs(f(this.p0, options), f(this.p1, options));
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};
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Box2Abs.prototype.sz = function () {
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return this.p1.sub(this.p0);
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};
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Box2Abs.prototype.centre = function () {
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return Vec2.centre(this.p0, this.p1);
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};
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Box2Abs.prototype.pos = function () {
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return this.p0;
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};
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module.exports = Box2Abs;
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