Camera

API

Camera

位置

camera.position: Cartesian3;
camera.positionCartographic: Cartographic;

camera.positionWC: Cartesian3; // 在世界坐标系下的相机位置
camera.range: number; 距离目标的距离

朝向

1. camera.direction 或者 camera.directionWC 来描述
2. 以类似于欧拉角来描述，相机默认自身竖直，俯视的看向正北方
   • heading：相对于正北方向的旋转，默认值为 0（正北），顺时针值递增
   • pitch：相对于水面的倾斜，向下倾斜为负，默认值为-90（俯视）
   • roll：绕自身轴向的旋转，顺时针为正，默认为 0

移动相机

// 聚焦某个实体或实体集合
viewer.flyTo(target, {
  offset: {
    heading: number,
    pitch: number,
    roll: number
  }
});

camera.setView;

camera.lookAt;

camera.lookAtTransform;

camera.flyTo({
  destination: Cartesian3 | Rectangle,
  orientation: object, // 描述相机的朝向，例如 {heading, pitch, roll} 或者 { direction, up }
});

camera.flyToBoundingSphere;

ScreenSpaceCameraController

鼠标对相机的控制

viewer.screenSpaceCameraController.enableInputs: boolean;
viewer.screenSpaceCameraController.enableTranslate: boolean;
viewer.screenSpaceCameraController.enableZoom: boolean;

viewer.screenSpaceCameraController.maximumZoomDistance: boolean;
viewer.screenSpaceCameraController.minimumZoomDistance: boolean;

// 修改鼠标的默认行为
viewer.scene.screenSpaceCameraController.zoomEventTypes = [
  CameraEventType.WHEEL,
  CameraEventType.PINCH,
];
viewer.scene.screenSpaceCameraController.lookEventTypes;
viewer.scene.screenSpaceCameraController.rotateEventTypes;
viewer.scene.screenSpaceCameraController.translateEventTypes;

参考

• Camera
• ScreenSpaceCameraController