Core (ge3d Core)

This is the ge3d class for initializing the Earth. All objects on the map are managed by it.

Constructor

new ge3d.Core(id, options): Core

Parameters

Parameter	Type	Description
id	string | Cesium.Viewer	div container id or pre-constructed Viewer object. (If you have already initialized a Viewer object with Cesium, you can directly pass in the Viewer object, which allows ge3d to be used in the middle of a project)
options	Object	Parameters for Scene and base map configuration

Options

scene

Initialize view angle and scene configuration

Parameter	Type	Default	Description
center	Object	-	Initial view angle
center.lat	Number	28	Latitude
center.lng	Number	36	Longitude
center.alt	Number	45187	Altitude
center.heading	Number	0	Heading angle
center.pitch	Number	-45	Pitch angle
animation	Boolean	true	Whether to create animation widget, bottom left corner instrument
timeline	Boolean	false	Whether to display timeline control
fullscreenButton	Boolean	true	Bottom right corner fullscreen button
vrButton	Boolean	true	Bottom right corner VR virtual reality button
geocoder	Boolean	true	Whether to display place name search control
sceneModePicker	Boolean	true	Whether to display projection mode control
homeButton	Boolean	true	Return to default view button
navigationHelpButton	Boolean	true	Whether to display help information control
navigationInstructionsInitiallyVisible	Boolean	true	Whether to automatically display before user explicitly clicks button
infoBox	Boolean	true	Whether to display information after clicking elements
selectionIndicator	Boolean	true	Whether to display green box when selecting models
shouldAnimate	Boolean	true	true if clock should try to advance simulation time by default, false otherwise. This option takes precedence over setting Viewer#clockViewModel
showRenderLoopErrors	Boolean	true	Whether to display error popup information
baseLayerPicker	Boolean	false	Map base layer

baseImages

Base map configuration array

Parameter	Type	Description
id	String	Layer ID
name	String	Layer name
type	String	Layer type (such as "google", "tdt")
layer	String	Layer type (such as "img_d")
show	Boolean	Whether to display

terrain

Terrain configuration

Parameter	Type	Default	Description
type	String	"ion"	Terrain type
show	Boolean	true	Whether to enable terrain

Example

const core = new ge3d.Core("cesiumContainer", {  //cesiumContainer container id
  "scene": {
    //Initial view angle
    center: { "lat": 28, "lng": 36, "alt": 45187, "heading": 0, "pitch": -45 },
    animation: true, // Whether to create animation widget, bottom left corner instrument
    timeline: false, // Whether to display timeline control
    fullscreenButton: true, // Bottom right corner fullscreen button
    vrButton: true, // Bottom right corner VR virtual reality button
    geocoder: true, // Whether to display place name search control
    sceneModePicker: true, // Whether to display projection mode control
    homeButton: true, // Return to default view button
    navigationHelpButton: true, // Whether to display help information control
    navigationInstructionsInitiallyVisible: true, // Whether to automatically display before user explicitly clicks button
    infoBox: true, // Whether to display information after clicking elements
    selectionIndicator: true, // Whether to display green box when selecting models
    shouldAnimate: true, //true if clock should try to advance simulation time by default, false otherwise. This option takes precedence over setting Viewer#clockViewModel.
    showRenderLoopErrors: true, // Whether to display error popup information
    baseLayerPicker: false, // Map base layer
  },
  "baseImages": [
    {
      "id": 'googleLayerId',
      "name": "Google Imagery",
      "type": "google",
      "layer": "img_d",
      "show": false
    },
    {
      "id": 'tdtLayerId',
      "name": "Tianditu Imagery",
      "type": "tdt",
      "layer": "img_d",
      //Apply Tianditu
      "show": true
    },
  ],
  //Enable terrain
  terrain: {
    'type': 'ion',
    "show": true,
  },
});

Properties

Property	Type	Description
basemap	String	Get or set the currently displayed base map, can pass layer id or name when setting
camera	Cesium.Camera	Get camera
canvas	HTMLCanvasElement	Get Canvas
cesiumWidget	Cesium.CesiumWidget	Get CesiumWidget
clock	Cesium.Clock	Get clock
container	HTMLElement	Get map DOM container
controls	Object	Get pre-constructed control objects passed in from config.json
dataSources	Cesium.DataSourceCollection	Get the collection of DataSource instances to be visualized
featureLayer	Object	Default bound layer, convenient for simple scenarios
fixedLight	Boolean	Whether to fix lighting, true: can avoid inconsistent brightness of gltf, 3dtiles models over time
hasTerrain	Boolean	Whether terrain is enabled
imageryLayers	Cesium.ImageryLayerCollection	Get the collection of ImageryLayer image layers to be rendered on Earth
lang	String	Language used (such as Chinese, English, etc.)
level	Number	Get current map level (approximate), generally 0-21 levels
mouseEvent	Object	Get mouse event controller
onlyPickModelPosition	Boolean	Whether to only pick points on models
scene	Cesium.Scene	Get scene
trackedEntity	Cesium.Entity	Get or set the Entity instance that the camera is currently tracking
viewer	Cesium.Viewer	The Cesium native Viewer object corresponding to the map