Move Entity locally

CesiumJS
1

Hello,

How can I move an entity a specified distance/direction from its current position?

2

I don’t see a function in http://cesiumjs.org/Cesium/Build/Documentation/EllipsoidGeodesic.html with initial lon/lat/hea along a distance.

However there’s JavaScript code you can use over at http://www.movable-type.co.uk/scripts/latlong.html

Just scroll down to “Destination point given distance and bearing from start point” to find it.

3

2015年4月5日日曜日 2時29分54秒 UTC+9 D2P:

Hello,

How can I move an entity a specified distance/direction from its current position?

HI.

var position = Cesium.Cartesian3.fromDegrees(lng,lat, alt);

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

var roll = Cesium.Math.toRadians(roll);

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

var ac = Aircrafts[name]; // <= Entity store this array

if ( ac == undefined ) return;

var orientation = Cesium.Transforms.headingPitchRollQuaternion(position, heading, pitch, roll);

ac.position = position;

ac.orientation = orientation;