calculateHeightOfCartesian2.CesiumJS

gistfile1.txt

ye sure,
//adding first time model to viewer
 ------------------------------------------------------------
var longitude,latitude,altitudeCode,timestamp,heading;

altitudeCode = (altitudeCode * 0.3048);

var start = Cesium.JulianDate.fromDate(new Date(timestamp * 1000));

    var time = Cesium.JulianDate.addSeconds(start, 0, new Cesium.JulianDate());
    var property = new Cesium.SampledPositionProperty();
    property.forwardExtrapolationType = Cesium.ExtrapolationType.HOLD;
    var position = Cesium.Cartesian3.fromDegrees(longitude, latitude, altitudeCode);
    property.addSample(time, position);

    var orientationProperty = new Cesium.SampledProperty(Cesium.Quaternion);
    orientationProperty.forwardExtrapolationType = Cesium.ExtrapolationType.HOLD;
    orientationProperty.addSample(start, new Cesium.Transforms.headingPitchRollQuaternion(position, Cesium.Math.toRadians(heading), 0, 0));

    var entity = viewer.entities.add({
        name: flightName,
        id: flightName,
        position: property,
        orientation: orientationProperty,
        show: true,
        path: {
            resolution: 1,
            material: Cesium.Color.ORANGE,
            width: 2
            //leadTime: 5000,
            //trailTime: 1000,
            //show: true,
        },
        model: {
            uri: aircraftsModalURL,
            minimumPixelSize: 45,
            scale: scale
        }
    });
    entity.position.setInterpolationOptions({
        interpolationDegree: 2,
        interpolationAlgorithm: Cesium.LinearApproximation
    });


//second time when the next new coords data
----------------------------------------------------------------
var entityName, getEntity,
entitiesArr = viewer.entities.values;

var property = getEntity.position;
property.numberOfDerivatives = 0;

curralt = (curralt * 0.3048);

var position = Cesium.Cartesian3.fromDegrees(currlong, currlat, curralt);
property.addSample(time, position);
getEntity.position = property

var orientationEntity = getEntity.orientation;
orientationEntity.addSample(Cesium.JulianDate.fromDate(                                      new Date(lasttimespan * 1000), new Cesium.JulianDate),
                                        new Cesium.Transforms.headingPitchRollQuaternion(position, (Cesium.Math.toRadians(currheading)), 0, 0)
                                    );
getEntity.orientation = orientationEntity;

this is it
i just give you the code where i add the next new coords and creating the model.
you can add the object variable a value.
Help me out..