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WorldWindow.test.js
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104 lines (95 loc) · 4.2 KB
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/*
* Copyright 2003-2006, 2009, 2017, 2020 United States Government, as represented
* by the Administrator of the National Aeronautics and Space Administration.
* All rights reserved.
*
* The NASAWorldWind/WebWorldWind platform is licensed under the Apache License,
* Version 2.0 (the "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License
* at http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software distributed
* under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
* CONDITIONS OF ANY KIND, either express or implied. See the License for the
* specific language governing permissions and limitations under the License.
*
* NASAWorldWind/WebWorldWind also contains the following 3rd party Open Source
* software:
*
* ES6-Promise – under MIT License
* libtess.js – SGI Free Software License B
* Proj4 – under MIT License
* JSZip – under MIT License
*
* A complete listing of 3rd Party software notices and licenses included in
* WebWorldWind can be found in the WebWorldWind 3rd-party notices and licenses
* PDF found in code directory.
*/
define([
'src/BasicWorldWindowController',
'src/render/DrawContext',
'src/globe/ElevationModel',
'src/globe/Globe',
'src/geom/Matrix',
'src/navigate/LookAtNavigator',
'src/geom/Rectangle',
'src/geom/Vec2',
'src/geom/Vec3',
'src/WorldWind',
'src/WorldWindow'
], function (BasicWorldWindowController, DrawContext, ElevationModel, Globe, Matrix, LookAtNavigator, Rectangle, Vec2, Vec3, WorldWind, WorldWindow) {
"use strict";
var MockGlContext = function () {
this.drawingBufferWidth = 800;
this.drawingBufferHeight = 800;
};
var viewport = new Rectangle(0, 0, 848, 848);
var dc = new DrawContext(new MockGlContext());
var MockWorldWindow = function () {
};
MockWorldWindow.prototype = Object.create(WorldWindow.prototype);
// create a globe that returns mock elevations for a given sector so we don't have to rely on
// asynchronous tile calls to finish.
Globe.prototype.minAndMaxElevationsForSector = function (sector) {
return [125.0, 350.0];
};
var mockGlobe = new Globe(new ElevationModel());
var wwd = new MockWorldWindow();
wwd.globe = mockGlobe;
wwd.drawContext = dc;
wwd.navigator = new LookAtNavigator();
wwd.worldWindowController = new BasicWorldWindowController(wwd);
wwd.viewport = viewport;
wwd.depthBits = 24;
wwd.scratchModelview = Matrix.fromIdentity();
wwd.scratchProjection = Matrix.fromIdentity();
wwd.layers = [];
wwd.resetDrawContext();
describe("WorldWindow Tests", function () {
describe("Correctly computes a ray originating at the navigator's eyePoint and extending through the specified point in window coordinates", function () {
it("Should throw an exception on missing input parameter", function () {
expect(function () {
dc.rayThroughScreenPoint(null);
}).toThrow();
});
// it("Calculates rayThroughScreenPoint correctly", function () {
// var screenPoint = new Vec2(13.5, 635);
// var expectedOrigin = new Vec3(-13332838.774, 8170373.752, -4852756.452);
// var expectedDirection = new Vec3(0.758, -0.628, -0.177);
// var line = wwd.rayThroughScreenPoint(screenPoint);
// var result = line.origin;
// expect(result).toBeCloseToVec3(expectedOrigin, 3);
// result = line.direction;
// expect(result).toBeCloseToVec3(expectedDirection, 3);
// });
});
describe("Correctly computes the approximate size of a pixel at a specified distance from the navigator's eye point", function () {
it("Calculates pixelSizeAtDistance correctly", function () {
var distance = 10097319.189;
var expectedSize = 11907.216;
var pixelSize = wwd.pixelSizeAtDistance(distance);
expect(pixelSize).toBeCloseTo(expectedSize, 3);
});
});
});
});