mirror of
https://github.com/openseadragon/openseadragon.git
synced 2024-11-25 22:56:11 +03:00
236 lines
9.6 KiB
JavaScript
236 lines
9.6 KiB
JavaScript
/* global module, asyncTest, $, ok, equal, notEqual, start, test, Util, testLog */
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(function() {
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module('Rectangle', {});
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var precision = 0.000000001;
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function assertPointsEquals(pointA, pointB, message) {
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Util.assessNumericValue(pointA.x, pointB.x, precision, message + " x: ");
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Util.assessNumericValue(pointA.y, pointB.y, precision, message + " y: ");
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}
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function assertRectangleEquals(rectA, rectB, message) {
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Util.assessNumericValue(rectA.x, rectB.x, precision, message + " x: ");
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Util.assessNumericValue(rectA.y, rectB.y, precision, message + " y: ");
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Util.assessNumericValue(rectA.width, rectB.width, precision,
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message + " width: ");
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Util.assessNumericValue(rectA.height, rectB.height, precision,
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message + " height: ");
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Util.assessNumericValue(rectA.degrees, rectB.degrees, precision,
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message + " degrees: ");
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}
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test('Constructor', function() {
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var rect = new OpenSeadragon.Rect(1, 2, 3, 4, 5);
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strictEqual(rect.x, 1, 'rect.x should be 1');
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strictEqual(rect.y, 2, 'rect.y should be 2');
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strictEqual(rect.width, 3, 'rect.width should be 3');
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strictEqual(rect.height, 4, 'rect.height should be 4');
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strictEqual(rect.degrees, 5, 'rect.degrees should be 5');
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rect = new OpenSeadragon.Rect();
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strictEqual(rect.x, 0, 'rect.x should be 0');
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strictEqual(rect.y, 0, 'rect.y should be 0');
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strictEqual(rect.width, 0, 'rect.width should be 0');
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strictEqual(rect.height, 0, 'rect.height should be 0');
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strictEqual(rect.degrees, 0, 'rect.degrees should be 0');
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rect = new OpenSeadragon.Rect(0, 0, 1, 2, -405);
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Util.assessNumericValue(Math.sqrt(2) / 2, rect.x, precision,
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'rect.x should be sqrt(2)/2');
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Util.assessNumericValue(-Math.sqrt(2) / 2, rect.y, precision,
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'rect.y should be -sqrt(2)/2');
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Util.assessNumericValue(2, rect.width, precision,
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'rect.width should be 2');
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Util.assessNumericValue(1, rect.height, precision,
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'rect.height should be 1');
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strictEqual(45, rect.degrees, 'rect.degrees should be 45');
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rect = new OpenSeadragon.Rect(0, 0, 1, 2, 135);
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Util.assessNumericValue(-Math.sqrt(2), rect.x, precision,
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'rect.x should be -sqrt(2)');
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Util.assessNumericValue(-Math.sqrt(2), rect.y, precision,
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'rect.y should be -sqrt(2)');
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Util.assessNumericValue(2, rect.width, precision,
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'rect.width should be 2');
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Util.assessNumericValue(1, rect.height, precision,
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'rect.height should be 1');
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strictEqual(45, rect.degrees, 'rect.degrees should be 45');
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rect = new OpenSeadragon.Rect(0, 0, 1, 1, 585);
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Util.assessNumericValue(0, rect.x, precision,
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'rect.x should be 0');
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Util.assessNumericValue(-Math.sqrt(2), rect.y, precision,
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'rect.y should be -sqrt(2)');
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Util.assessNumericValue(1, rect.width, precision,
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'rect.width should be 1');
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Util.assessNumericValue(1, rect.height, precision,
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'rect.height should be 1');
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strictEqual(45, rect.degrees, 'rect.degrees should be 45');
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});
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test('getTopLeft', function() {
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var rect = new OpenSeadragon.Rect(1, 2, 3, 4, 5);
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var expected = new OpenSeadragon.Point(1, 2);
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ok(expected.equals(rect.getTopLeft()), "Incorrect top left point.");
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});
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test('getTopRight', function() {
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var rect = new OpenSeadragon.Rect(0, 0, 1, 3);
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var expected = new OpenSeadragon.Point(1, 0);
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ok(expected.equals(rect.getTopRight()), "Incorrect top right point.");
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rect.degrees = 45;
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expected = new OpenSeadragon.Point(1 / Math.sqrt(2), 1 / Math.sqrt(2));
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assertPointsEquals(expected, rect.getTopRight(),
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"Incorrect top right point with rotation.");
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});
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test('getBottomLeft', function() {
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var rect = new OpenSeadragon.Rect(0, 0, 3, 1);
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var expected = new OpenSeadragon.Point(0, 1);
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ok(expected.equals(rect.getBottomLeft()), "Incorrect bottom left point.");
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rect.degrees = 45;
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expected = new OpenSeadragon.Point(-1 / Math.sqrt(2), 1 / Math.sqrt(2));
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assertPointsEquals(expected, rect.getBottomLeft(),
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"Incorrect bottom left point with rotation.");
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});
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test('getBottomRight', function() {
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var rect = new OpenSeadragon.Rect(0, 0, 1, 1);
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var expected = new OpenSeadragon.Point(1, 1);
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ok(expected.equals(rect.getBottomRight()), "Incorrect bottom right point.");
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rect.degrees = 45;
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expected = new OpenSeadragon.Point(0, Math.sqrt(2));
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assertPointsEquals(expected, rect.getBottomRight(),
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"Incorrect bottom right point with 45 rotation.");
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rect.degrees = 90;
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expected = new OpenSeadragon.Point(-1, 1);
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assertPointsEquals(expected, rect.getBottomRight(),
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"Incorrect bottom right point with 90 rotation.");
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rect.degrees = 135;
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expected = new OpenSeadragon.Point(-Math.sqrt(2), 0);
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assertPointsEquals(expected, rect.getBottomRight(),
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"Incorrect bottom right point with 135 rotation.");
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});
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test('getCenter', function() {
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var rect = new OpenSeadragon.Rect(0, 0, 1, 1);
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var expected = new OpenSeadragon.Point(0.5, 0.5);
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ok(expected.equals(rect.getCenter()), "Incorrect center point.");
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rect.degrees = 45;
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expected = new OpenSeadragon.Point(0, 0.5 * Math.sqrt(2));
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assertPointsEquals(expected, rect.getCenter(),
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"Incorrect bottom right point with 45 rotation.");
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rect.degrees = 90;
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expected = new OpenSeadragon.Point(-0.5, 0.5);
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assertPointsEquals(expected, rect.getCenter(),
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"Incorrect bottom right point with 90 rotation.");
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rect.degrees = 135;
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expected = new OpenSeadragon.Point(-0.5 * Math.sqrt(2), 0);
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assertPointsEquals(expected, rect.getCenter(),
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"Incorrect bottom right point with 135 rotation.");
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});
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test('times', function() {
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var rect = new OpenSeadragon.Rect(1, 2, 3, 4, 45);
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var expected = new OpenSeadragon.Rect(2, 4, 6, 8, 45);
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var actual = rect.times(2);
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assertRectangleEquals(expected, actual, "Incorrect x2 rectangles.");
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});
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test('translate', function() {
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var rect = new OpenSeadragon.Rect(1, 2, 3, 4, 45);
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var expected = new OpenSeadragon.Rect(2, 4, 3, 4, 45);
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var actual = rect.translate(new OpenSeadragon.Point(1, 2));
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assertRectangleEquals(expected, actual, "Incorrect translation.");
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});
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test('union', function() {
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var rect1 = new OpenSeadragon.Rect(2, 2, 2, 3);
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var rect2 = new OpenSeadragon.Rect(0, 1, 1, 1);
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var expected = new OpenSeadragon.Rect(0, 1, 4, 4);
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var actual = rect1.union(rect2);
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assertRectangleEquals(expected, actual,
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"Incorrect union with horizontal rectangles.");
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rect1 = new OpenSeadragon.Rect(0, -Math.sqrt(2), 2, 2, 45);
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rect2 = new OpenSeadragon.Rect(1, 0, 2, 2, 0);
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expected = new OpenSeadragon.Rect(
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-Math.sqrt(2),
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-Math.sqrt(2),
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3 + Math.sqrt(2),
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2 + Math.sqrt(2));
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actual = rect1.union(rect2);
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assertRectangleEquals(expected, actual,
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"Incorrect union with non horizontal rectangles.");
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});
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test('rotate', function() {
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var rect = new OpenSeadragon.Rect(0, 0, 2, 1);
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var expected = new OpenSeadragon.Rect(
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1 - 1 / (2 * Math.sqrt(2)),
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0.5 - 3 / (2 * Math.sqrt(2)),
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2,
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1,
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45);
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var actual = rect.rotate(-675);
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assertRectangleEquals(expected, actual,
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"Incorrect rectangle after rotation of -675deg around center.");
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expected = new OpenSeadragon.Rect(0, 0, 2, 1, 33);
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actual = rect.rotate(33, rect.getTopLeft());
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assertRectangleEquals(expected, actual,
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"Incorrect rectangle after rotation of 33deg around topLeft.");
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expected = new OpenSeadragon.Rect(0, 0, 2, 1, 101);
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actual = rect.rotate(101, rect.getTopLeft());
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assertRectangleEquals(expected, actual,
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"Incorrect rectangle after rotation of 187deg around topLeft.");
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expected = new OpenSeadragon.Rect(0, 0, 2, 1, 187);
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actual = rect.rotate(187, rect.getTopLeft());
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assertRectangleEquals(expected, actual,
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"Incorrect rectangle after rotation of 187deg around topLeft.");
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expected = new OpenSeadragon.Rect(0, 0, 2, 1, 300);
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actual = rect.rotate(300, rect.getTopLeft());
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assertRectangleEquals(expected, actual,
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"Incorrect rectangle after rotation of 300deg around topLeft.");
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});
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test('getBoundingBox', function() {
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var rect = new OpenSeadragon.Rect(0, 0, 2, 3);
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var bb = rect.getBoundingBox();
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ok(rect.equals(bb), "Bounding box of horizontal rectangle should be " +
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"identical to rectangle.");
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rect.degrees = 90;
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var expected = new OpenSeadragon.Rect(-3, 0, 3, 2);
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assertRectangleEquals(expected, rect.getBoundingBox(),
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"Bounding box of rect rotated 90deg.");
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rect.degrees = 180;
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var expected = new OpenSeadragon.Rect(-2, -3, 2, 3);
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assertRectangleEquals(expected, rect.getBoundingBox(),
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"Bounding box of rect rotated 180deg.");
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rect.degrees = 270;
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var expected = new OpenSeadragon.Rect(0, -2, 3, 2);
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assertRectangleEquals(expected, rect.getBoundingBox(),
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"Bounding box of rect rotated 270deg.");
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});
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})();
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