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/*! |
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* Cesium-minimap |
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* Initial version from : https://github.com/knreise/cesium-minimap |
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* Modified by Ycarus for Zugaina |
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* Licensed under: BSD-3-Clause |
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*/ |
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/*global Cesium:false*/ |
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function CesiumMiniMap(parentViewer, options) { |
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'use strict'; |
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options = options || {}; |
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var expanded = options.expanded || true; |
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var _viewer, _container, _toggleButton; |
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var CESIUM_OPTS = { |
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animation: false, |
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baseLayerPicker: false, |
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fullscreenButton: false, |
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geocoder: false, |
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homeButton: false, |
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infoBox: false, |
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sceneModePicker: false, |
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selectionIndicator: false, |
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timeline: false, |
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navigationHelpButton: false, |
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navigationInstructionsInitiallyVisible: false, |
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orderIndependentTranslucency: false, |
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sceneMode: Cesium.SceneMode.SCENE2D, |
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mapProjection: new Cesium.WebMercatorProjection() |
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}; |
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function _getContainer() { |
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var parentDiv = document.createElement('div'); |
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parentDiv.className = 'cesium-minimap'; |
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parentViewer.bottomContainer.appendChild(parentDiv); |
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return parentDiv; |
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} |
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function _addLayer(layer) { |
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_viewer.imageryLayers.addImageryProvider(layer.imageryProvider); |
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} |
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function _setupMap(div) { |
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CESIUM_OPTS.creditContainer = document.createElement('div'); |
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var miniviewer = new Cesium.Viewer(div, CESIUM_OPTS); |
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miniviewer.scene.imageryLayers.removeAll(); |
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var miniscene = miniviewer.scene; |
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miniscene.screenSpaceCameraController.enableRotate = false; |
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miniscene.screenSpaceCameraController.enableTranslate = false; |
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miniscene.screenSpaceCameraController.enableZoom = false; |
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miniscene.screenSpaceCameraController.enableTilt = false; |
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miniscene.screenSpaceCameraController.enableLook = false; |
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parentViewer.scene.imageryLayers.layerAdded.addEventListener(_addLayer); |
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var pos = parentViewer.scene.camera.positionCartographic; |
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pos.height = 22000000.0; |
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miniviewer.scene.camera.setView({ |
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destination: Cesium.Ellipsoid.WGS84.cartographicToCartesian(pos), |
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}); |
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_viewer = miniviewer; |
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} |
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function _setupListener() { |
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var minicamera = _viewer.scene.camera; |
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var parentCamera = parentViewer.scene.camera; |
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parentCamera.moveEnd.addEventListener(function () { |
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var pos = parentCamera.positionCartographic; |
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pos.height = Math.max(Math.min(pos.height,11000000) * 2, 100000); |
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minicamera.setView({ |
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destination: Cesium.Ellipsoid.WGS84.cartographicToCartesian(pos), |
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orientation: { |
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heading : parentCamera.heading, |
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pitch : parentCamera.pitch |
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} |
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}); |
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}); |
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} |
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function _toggle() { |
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expanded = !expanded; |
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if (expanded) { |
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_container.style.width = '150px'; |
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_container.style.height = '150px'; |
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_toggleButton.className = _toggleButton.className.replace( |
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' minimized', |
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'' |
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); |
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} else { |
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//close |
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_container.style.width = '19px'; |
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_container.style.height = '19px'; |
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_toggleButton.className += ' minimized'; |
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} |
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} |
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function _createToggleButton() { |
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var btn = document.createElement('a'); |
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btn.className = 'minimap-toggle-display'; |
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btn.onclick = function (e) { |
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e.preventDefault(); |
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_toggle(); |
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return false; |
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}; |
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return btn; |
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} |
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function init() { |
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var div = document.createElement('div'); |
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div.className = 'minimap-container'; |
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_container = _getContainer(); |
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_container.appendChild(div); |
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_toggleButton = _createToggleButton(); |
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_container.appendChild(_toggleButton); |
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_setupMap(div); |
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_setupListener(); |
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if (parentViewer.imageryLayers.length) { |
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_addLayer(parentViewer.imageryLayers.get(0)); |
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} |
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} |
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init(); |
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} |
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