SuperMap.Web.Realspace.ParticleSystem = function() {};

var instanceVar = new SuperMap.Web.Realspace.ParticleSystem();

function TextParticleSystem()
{
        构造 geoPoint3D 对象，火焰/烟雾/烟火/喷泉/爆炸/尾焰粒子关联的 Geometry 必须为 GeoPoint3D 类型的对象
         var geoPoint3D = new SuperMap.Web.Core.GeoPoint3D(new SuperMap.Web.Core.Point3D(116.38817, 39.99263, 30)); 
                
        构造粒子几何对象并关联 Gemotry 对象为 geoPoint3D
         var geoParticle = new SuperMap.Web.Core.GeoParticle();
        if (geoParticle.makeWithGeometry(geoPoint3D) == false)
        {
                return;
        }
                
        设置粒子效果类型，可参见 ParticleType 枚举
         geoParticle.set_particleType(SuperMap.Web.Core.ParticleType.Fire);

        获取 geoParticle 对象所持有的 rainPariticleSystem
         var particleSystem = geoParticle.getParticleSystemByIndex(0);
        if (particleSystem == null)
        {
                return;
        }

        设置粒子系统对象的各项参数
         particleSystem.set_particleWidth(500);
        particleSystem.set_particleHeight(700);
        particleSystem.set_particleCountPerSecond(13000);

        构造 Feature3D 对象，设置几何对象为 geoParticle
         var feature3D = new SuperMap.Web.Core.Feature3D();
        feature3D.set_geometry(geoParticle);

        获取跟踪图层并在跟踪图层添加 feature3D 对象
         trackingLayer.add(feature3D, "particle");
}