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Fix home bounds with rotation. Fix #567 and #463

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This commit is contained in:
Antoine Vandecreme 2015-12-05 19:18:56 -05:00
parent 5e362554e2
commit 1d04ceadff
4 changed files with 73 additions and 46 deletions
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15
src/viewport.js
View File

@ -175,7 +175,7 @@ $.Viewport.prototype = /** @lends OpenSeadragon.Viewport.prototype */{
$.console.assert(bounds.width > 0, "[Viewport.setHomeBounds] bounds.width must be greater than 0");
$.console.assert(bounds.height > 0, "[Viewport.setHomeBounds] bounds.height must be greater than 0");
this.homeBounds = bounds.clone();
this.homeBounds = bounds.clone().rotate(this.degrees).getBoundingBox();
this.contentSize = this.homeBounds.getSize().times(contentFactor);
this.contentAspectX = this.contentSize.x / this.contentSize.y;
this.contentAspectY = this.contentSize.y / this.contentSize.x;
@ -808,12 +808,18 @@ $.Viewport.prototype = /** @lends OpenSeadragon.Viewport.prototype */{
* @return {OpenSeadragon.Viewport} Chainable.
*/
setRotation: function(degrees) {
if( !( this.viewer && this.viewer.drawer.canRotate() ) ) {
if (!this.viewer || !this.viewer.drawer.canRotate()) {
return this;
}
degrees = ( degrees + 360 ) % 360;
degrees = degrees % 360;
if (degrees < 0) {
degrees += 360;
}
this.degrees = degrees;
this.setHomeBounds(
this.viewer.world.getHomeBounds(),
this.viewer.world.getContentFactor());
this.viewer.forceRedraw();
/**
@ -826,10 +832,7 @@ $.Viewport.prototype = /** @lends OpenSeadragon.Viewport.prototype */{
* @property {Number} degrees - The number of degrees the rotation was set to.
* @property {?Object} userData - Arbitrary subscriber-defined object.
*/
if (this.viewer !== null)
{
this.viewer.raiseEvent('rotate', {"degrees": degrees});
}
return this;
},

18
test/helpers/test.js
View File

@ -68,6 +68,24 @@
ok( Util.equalsWithVariance( value1, value2, variance ), message + " Expected:" + value1 + " Found: " + value2 + " Variance: " + variance );
},
// ----------
assertPointsEquals: function (pointA, pointB, precision, message) {
Util.assessNumericValue(pointA.x, pointB.x, precision, message + " x: ");
Util.assessNumericValue(pointA.y, pointB.y, precision, message + " y: ");
},
// ----------
assertRectangleEquals: function (rectA, rectB, precision, message) {
Util.assessNumericValue(rectA.x, rectB.x, precision, message + " x: ");
Util.assessNumericValue(rectA.y, rectB.y, precision, message + " y: ");
Util.assessNumericValue(rectA.width, rectB.width, precision,
message + " width: ");
Util.assessNumericValue(rectA.height, rectB.height, precision,
message + " height: ");
Util.assessNumericValue(rectA.degrees, rectB.degrees, precision,
message + " degrees: ");
},
// ----------
timeWatcher: function ( time ) {
time = time || 2000;

58
test/modules/rectangle.js
View File

@ -6,22 +6,6 @@
var precision = 0.000000001;
function assertPointsEquals(pointA, pointB, message) {
Util.assessNumericValue(pointA.x, pointB.x, precision, message + " x: ");
Util.assessNumericValue(pointA.y, pointB.y, precision, message + " y: ");
}
function assertRectangleEquals(rectA, rectB, message) {
Util.assessNumericValue(rectA.x, rectB.x, precision, message + " x: ");
Util.assessNumericValue(rectA.y, rectB.y, precision, message + " y: ");
Util.assessNumericValue(rectA.width, rectB.width, precision,
message + " width: ");
Util.assessNumericValue(rectA.height, rectB.height, precision,
message + " height: ");
Util.assessNumericValue(rectA.degrees, rectB.degrees, precision,
message + " degrees: ");
}
test('Constructor', function() {
var rect = new OpenSeadragon.Rect(1, 2, 3, 4, 5);
strictEqual(rect.x, 1, 'rect.x should be 1');
@ -84,7 +68,7 @@
rect.degrees = 45;
expected = new OpenSeadragon.Point(1 / Math.sqrt(2), 1 / Math.sqrt(2));
assertPointsEquals(expected, rect.getTopRight(),
Util.assertPointsEquals(expected, rect.getTopRight(), precision,
"Incorrect top right point with rotation.");
});
@ -95,7 +79,7 @@
rect.degrees = 45;
expected = new OpenSeadragon.Point(-1 / Math.sqrt(2), 1 / Math.sqrt(2));
assertPointsEquals(expected, rect.getBottomLeft(),
Util.assertPointsEquals(expected, rect.getBottomLeft(), precision,
"Incorrect bottom left point with rotation.");
});
@ -106,17 +90,17 @@
rect.degrees = 45;
expected = new OpenSeadragon.Point(0, Math.sqrt(2));
assertPointsEquals(expected, rect.getBottomRight(),
Util.assertPointsEquals(expected, rect.getBottomRight(), precision,
"Incorrect bottom right point with 45 rotation.");
rect.degrees = 90;
expected = new OpenSeadragon.Point(-1, 1);
assertPointsEquals(expected, rect.getBottomRight(),
Util.assertPointsEquals(expected, rect.getBottomRight(), precision,
"Incorrect bottom right point with 90 rotation.");
rect.degrees = 135;
expected = new OpenSeadragon.Point(-Math.sqrt(2), 0);
assertPointsEquals(expected, rect.getBottomRight(),
Util.assertPointsEquals(expected, rect.getBottomRight(), precision,
"Incorrect bottom right point with 135 rotation.");
});
@ -127,17 +111,17 @@
rect.degrees = 45;
expected = new OpenSeadragon.Point(0, 0.5 * Math.sqrt(2));
assertPointsEquals(expected, rect.getCenter(),
Util.assertPointsEquals(expected, rect.getCenter(), precision,
"Incorrect bottom right point with 45 rotation.");
rect.degrees = 90;
expected = new OpenSeadragon.Point(-0.5, 0.5);
assertPointsEquals(expected, rect.getCenter(),
Util.assertPointsEquals(expected, rect.getCenter(), precision,
"Incorrect bottom right point with 90 rotation.");
rect.degrees = 135;
expected = new OpenSeadragon.Point(-0.5 * Math.sqrt(2), 0);
assertPointsEquals(expected, rect.getCenter(),
Util.assertPointsEquals(expected, rect.getCenter(), precision,
"Incorrect bottom right point with 135 rotation.");
});
@ -145,14 +129,16 @@
var rect = new OpenSeadragon.Rect(1, 2, 3, 4, 45);
var expected = new OpenSeadragon.Rect(2, 4, 6, 8, 45);
var actual = rect.times(2);
assertRectangleEquals(expected, actual, "Incorrect x2 rectangles.");
Util.assertRectangleEquals(expected, actual, precision,
"Incorrect x2 rectangles.");
});
test('translate', function() {
var rect = new OpenSeadragon.Rect(1, 2, 3, 4, 45);
var expected = new OpenSeadragon.Rect(2, 4, 3, 4, 45);
var actual = rect.translate(new OpenSeadragon.Point(1, 2));
assertRectangleEquals(expected, actual, "Incorrect translation.");
Util.assertRectangleEquals(expected, actual, precision,
"Incorrect translation.");
});
test('union', function() {
@ -160,7 +146,7 @@
var rect2 = new OpenSeadragon.Rect(0, 1, 1, 1);
var expected = new OpenSeadragon.Rect(0, 1, 4, 4);
var actual = rect1.union(rect2);
assertRectangleEquals(expected, actual,
Util.assertRectangleEquals(expected, actual, precision,
"Incorrect union with horizontal rectangles.");
rect1 = new OpenSeadragon.Rect(0, -Math.sqrt(2), 2, 2, 45);
@ -171,7 +157,7 @@
3 + Math.sqrt(2),
2 + Math.sqrt(2));
actual = rect1.union(rect2);
assertRectangleEquals(expected, actual,
Util.assertRectangleEquals(expected, actual, precision,
"Incorrect union with non horizontal rectangles.");
});
@ -185,27 +171,27 @@
1,
45);
var actual = rect.rotate(-675);
assertRectangleEquals(expected, actual,
Util.assertRectangleEquals(expected, actual, precision,
"Incorrect rectangle after rotation of -675deg around center.");
expected = new OpenSeadragon.Rect(0, 0, 2, 1, 33);
actual = rect.rotate(33, rect.getTopLeft());
assertRectangleEquals(expected, actual,
Util.assertRectangleEquals(expected, actual, precision,
"Incorrect rectangle after rotation of 33deg around topLeft.");
expected = new OpenSeadragon.Rect(0, 0, 2, 1, 101);
actual = rect.rotate(101, rect.getTopLeft());
assertRectangleEquals(expected, actual,
Util.assertRectangleEquals(expected, actual, precision,
"Incorrect rectangle after rotation of 187deg around topLeft.");
expected = new OpenSeadragon.Rect(0, 0, 2, 1, 187);
actual = rect.rotate(187, rect.getTopLeft());
assertRectangleEquals(expected, actual,
Util.assertRectangleEquals(expected, actual, precision,
"Incorrect rectangle after rotation of 187deg around topLeft.");
expected = new OpenSeadragon.Rect(0, 0, 2, 1, 300);
actual = rect.rotate(300, rect.getTopLeft());
assertRectangleEquals(expected, actual,
Util.assertRectangleEquals(expected, actual, precision,
"Incorrect rectangle after rotation of 300deg around topLeft.");
});
@ -218,17 +204,17 @@
rect.degrees = 90;
var expected = new OpenSeadragon.Rect(-3, 0, 3, 2);
assertRectangleEquals(expected, rect.getBoundingBox(),
Util.assertRectangleEquals(expected, rect.getBoundingBox(), precision,
"Bounding box of rect rotated 90deg.");
rect.degrees = 180;
var expected = new OpenSeadragon.Rect(-2, -3, 2, 3);
assertRectangleEquals(expected, rect.getBoundingBox(),
Util.assertRectangleEquals(expected, rect.getBoundingBox(), precision,
"Bounding box of rect rotated 180deg.");
rect.degrees = 270;
var expected = new OpenSeadragon.Rect(0, -2, 3, 2);
assertRectangleEquals(expected, rect.getBoundingBox(),
Util.assertRectangleEquals(expected, rect.getBoundingBox(), precision,
"Bounding box of rect rotated 270deg.");
});

20
test/modules/viewport.js
View File

@ -218,6 +218,26 @@
});
});
asyncTest('getHomeBoundsWithRotation', function() {
function openHandler() {
viewer.removeHandler('open', openHandler);
var viewport = viewer.viewport;
viewport.setRotation(-675);
Util.assertRectangleEquals(
viewport.getHomeBounds(),
new OpenSeadragon.Rect(
(1 - Math.sqrt(2)) / 2,
(1 - Math.sqrt(2)) / 2,
Math.sqrt(2),
Math.sqrt(2)),
0.00000001,
"Test getHomeBounds with degrees = -675");
start();
}
viewer.addHandler('open', openHandler);
viewer.open(DZI_PATH);
});
asyncTest('getHomeZoom', function() {
reopenViewerHelper({
property: 'defaultZoomLevel',