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/** |
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* (c) Kitodo. Key to digital objects e.V. <[email protected]> |
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* |
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* This file is part of the Kitodo and TYPO3 projects. |
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* |
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* @license GNU General Public License version 3 or later. |
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* For the full copyright and license information, please read the |
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* LICENSE.txt file that was distributed with this source code. |
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*/ |
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/** |
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* @return {number|undefined} |
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*/ |
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ol.Map.prototype.getZoom = function(){ |
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return this.getView().getZoom(); |
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}; |
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/** |
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* Returns an array containing the min and max zoom level [minZoom, maxZoom] |
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* @return {Array.<number>} |
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*/ |
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ol.Map.prototype.getZoomRange = function() { |
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var maxZoom = window.OL3_MAX_ZOOM !== undefined && !isNaN(window.OL3_MAX_ZOOM) ? window.OL3_MAX_ZOOM : 18; |
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return [0, maxZoom]; |
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}; |
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/** |
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* Zooms to given zoomLevel |
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* |
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* @param {number} zoomLevel |
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*/ |
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ol.Map.prototype.zoom = function(zoomLevel) { |
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var view = this.getView(), |
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resolution = view.getResolution(); |
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this.beforeRender(ol.animation.zoom({ |
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'resolution': resolution, |
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'duration': 500 |
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})); |
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view.setZoom(zoomLevel); |
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}; |
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/** |
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* Zooms in the map. Uses ol.animation for smooth zooming |
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*/ |
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ol.Map.prototype.zoomIn = function() { |
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var view = this.getView(), |
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zoomLevel = view.getZoom() + 1, |
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resolution = view.getResolution(); |
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this.beforeRender(ol.animation.zoom({ |
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'resolution': resolution, |
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'duration': 500 |
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})); |
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view.setZoom(zoomLevel); |
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}; |
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/** |
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* Zooms out the map |
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*/ |
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ol.Map.prototype.zoomOut = function() { |
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var view = this.getView(), |
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zoomLevel = view.getZoom() - 1, |
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resolution = view.getResolution(); |
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this.beforeRender(ol.animation.zoom({ |
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'resolution': resolution, |
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'duration': 500 |
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})); |
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view.setZoom(zoomLevel); |
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}; |
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/** |
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* Zooms to given point |
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* @param {Array.<number>} center |
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* @param {number} zoomLevel |
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* @param {number=} opt_duration |
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*/ |
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ol.Map.prototype.zoomTo = function(center, zoomLevel, opt_duration) { |
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var view = this.getView(), |
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resolution = view.getResolution(), |
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duration = opt_duration !== undefined ? opt_duration : 500; |
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this.beforeRender(ol.animation.zoom({ |
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'resolution': resolution, |
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'duration': duration |
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})); |
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view.setCenter(center); |
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view.setZoom(zoomLevel); |
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}; |
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/** |
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* Rotate the map |
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* @param {number} rotation |
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*/ |
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ol.Map.prototype.rotate = function(rotation) { |
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var view = this.getView(), |
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rotate = view.getRotation() + (rotation * Math.PI/180), |
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center = view.getCenter(); |
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this.beforeRender(ol.animation.rotate({ |
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'rotation':view.getRotation(), |
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'anchor':center, |
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'duration':200 |
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})); |
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view.rotate(rotate, center); |
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if (this.ov_view != null) { |
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this.ov_view.rotate(rotate); |
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} |
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}; |
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/** |
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* Rotate the map in the left direction |
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*/ |
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ol.Map.prototype.rotateLeft = function() { |
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this.rotate(-5); |
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if (this.ov_view != null) { |
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this.ov_view.rotate(-5); |
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} |
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}; |
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/** |
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* Rotate the map in the right direction |
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*/ |
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ol.Map.prototype.rotateRight = function() { |
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this.rotate(5); |
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if (this.ov_view != null) { |
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this.ov_view.rotate(5); |
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} |
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}; |
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/** |
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* Resets the rotation of the map |
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*/ |
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ol.Map.prototype.resetRotation = function() { |
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this.getView().rotate(0, this.getView().getCenter()); |
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if (this.ov_view != null) { |
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this.ov_view.rotate(0); |
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} |
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}; |
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