技術標籤：Cesium

程式碼

var staticPosition = Cesium.Cartesian3.fromDegrees( -75.59742934002912,40.03824624260394,8);
        var entity44 = this.viewer.entities.add({
            position : staticPosition
        });
        function computeModelMatrix(entity, time) {
            var position = Cesium.Property.
 
getValueOrUndefined(entity.position,time);
            let modelMatrix = Cesium.Transforms.eastNorthUpToFixedFrame(position);
            return modelMatrix;
        }
        function computeEmitterModelMatrix() {
           let  hpr = Cesium.HeadingPitchRoll.fromDegrees(0, 0, 0);
            let trs =
 
 new Cesium.TranslationRotationScale();
            trs.translation = Cesium.Cartesian3.fromElements(2.5,4, 1);
            trs.rotation = Cesium.Quaternion.fromHeadingPitchRoll(hpr);
            let result=Cesium.Matrix4.fromTranslationRotationScale(trs);
            return result
        }
        this.
 
viewer.scene.primitives.add(new Cesium.ParticleSystem({
            image :   require('../../assets/img/fire.png'),
            startColor : Cesium.Color.RED.withAlpha(0.7),
            endColor : Cesium.Color.YELLOW.withAlpha(0.3),
            startScale : 0,
            endScale : 10,
            minimumParticleLife : 1,
            maximumParticleLife : 6,
            minimumSpeed :1,
            maximumSpeed : 4,
            imageSize : new Cesium.Cartesian2(5, 5),
            emissionRate : 4,//每秒要發射的粒子數
            lifetime : 160.0,//粒子系統發射粒子的時間（以秒為單位）
            emitter : new Cesium.CircleEmitter(5.0),
            modelMatrix : computeModelMatrix(entity44, Cesium.JulianDate.now()),
            emitterModelMatrix : computeEmitterModelMatrix()
        }));

fire.png圖片放這裡

參考 ：https://blog.csdn.net/a873054267/article/details/86251663