超图地图设置移除罐体爆炸动图效果

        //设置爆炸效果

    app.setFireModel = function(x, y, z) {

            var start = Cesium.JulianDate.fromDate(new Date(2015, 2, 25, 16));

            var stop = Cesium.JulianDate.addSeconds(start, 360, new Cesium.JulianDate());

            viewer.clock.startTime = start.clone();

            viewer.clock.stopTime = stop.clone();

            viewer.clock.currentTime = start.clone();

            viewer.clock.clockRange = Cesium.ClockRange.LOOP_STOP; //Loop at the end

            viewer.clock.multiplier = 1;

            var viewModel = {

                rate: 5,

                gravity: 0, //重力

                minimumLife: 2.0,

                maximumLife: 6.0,

                minimumSpeed: 5.0,

                maximumSpeed: 5.0,

                startScale: 6.0,

                endScale: 6.0,

                particleSize: 8.0,

                transX: 2.5,

                transY: 4.0,

                transZ: 1.0,

                heading: 0.0,

                pitch: 0.0,

                roll: 0.0,

                fly: false,

                spin: false,

                show: true

            };

            Cesium.knockout.track(viewModel);

            var emitterModelMatrix = new Cesium.Matrix4();

            var translation = new Cesium.Cartesian3();

            var rotation = new Cesium.Quaternion();

            var hpr = new Cesium.HeadingPitchRoll();

            var trs = new Cesium.TranslationRotationScale();

            function computeEmitterModelMatrix() {

                hpr = Cesium.HeadingPitchRoll.fromDegrees(viewModel.heading, viewModel.pitch, viewModel.roll, hpr);

                trs.translation = Cesium.Cartesian3.fromElements(viewModel.transX, viewModel.transY, viewModel.transZ, translation);

                trs.rotation = Cesium.Quaternion.fromHeadingPitchRoll(hpr, rotation);

                return Cesium.Matrix4.fromTranslationRotationScale(trs, emitterModelMatrix);

            }

            mapapp.FireparticleSystem = scene.primitives.add(new Cesium.ParticleSystem({

                image: '/images/ParticleSystem/fire.png',

                startColor: new Cesium.Color(1, 1, 1, 1),

                endColor: new Cesium.Color(1, 0, 0, 0),

                startScale: viewModel.startScale,

                endScale: viewModel.endScale,

                minimumLife: viewModel.minimumLife,

                maximumLife: viewModel.maximumLife,

                minimumSpeed: viewModel.minimumSpeed,

                maximumSpeed: viewModel.maximumSpeed,

                minimumWidth: viewModel.particleSize,

                minimumHeight: viewModel.particleSize,

                maximumWidth: viewModel.particleSize,

                maximumHeight: viewModel.particleSize,

                rate: viewModel.rate,

                bursts: [

                    new Cesium.ParticleBurst({ time: 5.0, minimum: 300, maximum: 500 }),

                    new Cesium.ParticleBurst({ time: 10.0, minimum: 50, maximum: 100 }),

                    new Cesium.ParticleBurst({ time: 15.0, minimum: 200, maximum: 300 })

                ],

                lifeTime: 6.0,

                emitter: new Cesium.ConeEmitter(Cesium.Math.toRadians(45.0)),

                emitterModelMatrix: computeEmitterModelMatrix(),

                forces: [applyGravity]

            }));

            function applyGravity(p, dt) {

                var position = p.position;

                Cesium.Cartesian3.normalize(position, gravityScratch);

                Cesium.Cartesian3.multiplyByScalar(gravityScratch, viewModel.gravity * dt, gravityScratch);

                p.velocity = Cesium.Cartesian3.add(p.velocity, gravityScratch, p.velocity);

            }

            var gravityScratch = new Cesium.Cartesian3();

            viewer.scene.preRender.addEventListener(function(scene, time) {

                mapapp.FireparticleSystem.modelMatrix = Cesium.Transforms.eastNorthUpToFixedFrame(Cesium.Cartesian3.fromDegrees(x, y, z));;

                mapapp.FireparticleSystem.emitterModelMatrix = computeEmitterModelMatrix();

                // Spin the emitter if enabled.

                if (viewModel.spin) {

                    viewModel.heading += 1.0;

                    viewModel.pitch += 1.0;

                    viewModel.roll += 1.0;

                }

            });

        }

 

       //移出所有的实体

    app.removeAllEntity = function() {

        if (mapapp.FireparticleSystem) {

            scene.primitives.remove(mapapp.FireparticleSystem);//移除罐体爆炸效果

        }

        viewer.scene.scanEffect.show = false;

        viewer.entities.removeAll();

    }