確定SceneView 的可見部分(或透視圖)的觀察點。包含的屬性包括當前視圖的高程、傾斜和航向(以度為單位)。設置相機會立即更改當前視圖。要為視圖設置動畫,請參閱 goTo() 。
在構造函數中設置時,此屬性將覆蓋視點、範圍、中心、比例和縮放屬性。
相機屬性包含一個內部參考,將來可能會被修改。要保留或修改相機,請使用 camera.clone() 創建一個克隆。
在地理或公製坐標係中定義的Z-values 以米為單位。但是,在使用投影坐標係的局部場景中,假定垂直單位與服務指定的水平單位相同。
例子:
// Initializes the view at the given (x, y, z) position with a heading of 95 degrees. // The position of the camera is a Point which will autocast in the sample // below. Note that the default Point spatial reference is WGS84 which // will only work if the SceneView has a Web Mercator or WGS84 spatial // reference. For other spatial references, create a new position Point // with an explicit spatial reference. const view = new SceneView({ camera: { position: [ -122, // lon 38, // lat 50000 // elevation in meters ], heading: 95 } });
// Initializes the view at the given position with a tilt of 65 degrees const view = new SceneView({ camera: { position: { x: -100, // lon y: 45, // lat z: 10654 // elevation in meters }, tilt: 65 } });
// Clone the camera to modify its properties const camera = view.camera.clone(); // Set new values for heading and tilt camera.heading = 180; camera.tilt = 45; // Set the new properties on the view's camera view.camera = camera;
// Set the view's camera to a new position, heading and tilt with the goTo() method view.goTo({ target: [-122, 38, 50000], heading: 180, tilt: 45 });
基本信息
以下是所在類或對象的基本信息。
AMD:
require(["esri/views/SceneView"], (SceneView) => { /* code goes here */ });
ESM:
import SceneView from "@arcgis/core/views/SceneView";
類:
esri/views/SceneView
繼承: SceneView > View > Accessor
自從:用於 JavaScript 4.0 的 ArcGIS API
用法說明
SceneView.camera
函數(或屬性)的定義如下:
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注:本文由純淨天空篩選整理自arcgis.com大神的英文原創作品 SceneView.camera。非經特殊聲明,原始代碼版權歸原作者所有,本譯文未經允許或授權,請勿轉載或複製。