确定SceneView 的可见部分(或透视图)的观察点。包含的属性包括当前视图的高程、倾斜和航向(以度为单位)。设置相机会立即更改当前视图。要为视图设置动画,请参阅 goTo() 。
在构造函数中设置时,此属性将覆盖视点、范围、中心、比例和缩放属性。
相机属性包含一个内部参考,将来可能会被修改。要保留或修改相机,请使用 camera.clone() 创建一个克隆。
在地理或公制坐标系中定义的Z-values 以米为单位。但是,在使用投影坐标系的局部场景中,假定垂直单位与服务指定的水平单位相同。
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
以下是所在类或对象的基本信息。
AMD:
require(["esri/views/SceneView"], (SceneView) => { /* code goes here */ });
ESM:
import SceneView from "@arcgis/core/views/SceneView";
类:
esri/views/SceneView
继承: SceneView > View > Accessor
自从:用于 JavaScript 4.0 的 ArcGIS API
用法说明
SceneView.camera
函数(或属性)的定义如下:
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注:本文由纯净天空筛选整理自arcgis.com大神的英文原创作品 SceneView.camera。非经特殊声明,原始代码版权归原作者所有,本译文未经允许或授权,请勿转载或复制。