programmatically tiltup/tiltdown

[legen...@gmail.com]

I want to do the tiltup / tiltdown operation programmatically by pressing the mouse scroll button. I read it for camera documentation but I could not make any necessary calculations. Could you share sample code?

example :
https://ibb.co/mrLzvT

[Gabby Getz]

Hi there,

Set the ScreenSpaceCameraController.tiltEventTypes to the CameraEventType you want, in this case CameraEventType.WHEEL.

Thanks,

Gabby

[legen...@gmail.com]

Hi,


Thank you for answer but i don't want to subscribe an event or set up controls. I want to programatically tilt the camera as it is in the example.

Thanks

27 Haziran 2018 Çarşamba 17:18:08 UTC+3 tarihinde Gabby Getz yazdı:

[Omar Shehata]

Try using the camera's lookAt function. It lets you specify a point and an orientation/distance. Here's an example of making it tilt. 

var viewer = new Cesium.Viewer('cesiumContainer');

var origin = Cesium.Cartesian3.fromDegrees(100,1);

var sphere = new Cesium.BoundingSphere(origin, 1e2);

viewer.camera.viewBoundingSphere(sphere);

var time = 0;

viewer.scene.postUpdate.addEventListener(function() {

    time += 0.05;

    var angle = (Math.cos(time) + 1) * 0.5 * 25 + 15;

    var heading = Cesium.Math.toRadians(0.0);

    var pitch = Cesium.Math.toRadians(-angle);

    var range = 1e2;

    viewer.camera.lookAt(

        origin, 

        new Cesium.HeadingPitchRange(heading, pitch, range)

    );

});

Does this do what you want?

[legen...@gmail.com]

Thank you Omar. That's exactly what I want!


28 Haziran 2018 Perşembe 20:46:44 UTC+3 tarihinde Omar Shehata yazdı: