//1、box盒子，dimensions為尺寸（長寬高），outline為邊界（默認false不顯示）
var redBox = myviewer.entities.add({
show:false,
id:"0204",
name:"盒子",
description:"一個長條盒子......................",
position:Cesium.Cartesian3.fromDegrees(113,31,10000),
box:{
dimensions: new Cesium.Cartesian3(400,300,100000),
material:Cesium.Color.RED,
outline:true,
outlineColor:Cesium.Color.BLUE,
//shadows //陰影還沒有嘗試成功
}
});
//2、旋轉的圓形或者橢圓
var xza = new Cesium.EllipseGraphics({
semiMinorAxis:100000,
semiMajorAxis:300000,
height:100000,
extrudedHeight:10000,//拉升，拔高，單位米
rotation:Cesium.Math.toRadians(30),//一種數字屬性，指定從北逆時針方向橢圓的旋轉。
material:Cesium.Color.BLUE.withAlpha(0.5),
outline:true
})
var greencircle = myviewer.entities.add({
show:false,
name:"一個圓",
position:Cesium.Cartesian3.fromDegrees(113,31,10000),
ellipse:xza
})
//3、走廊形狀
var redCorr =myviewer.entities.add({
name:"走廊形狀",
corridor:{
positions:Cesium.Cartesian3.fromDegreesArray([113,31,114,36,115,33]),
width:1000,
extrudedHeight:1000,//實體的拉升高度
height:0,//實體的海拔高度
material:Cesium.Color.RED.withAlpha(0.5),
outline:true,
outlineColor:Cesium.Color.BLACK
//granularity:Cesium.Math.RADIANS_PER_DEGREE(30)
}
});
//4、polygon
var myPolygon1 = new Cesium.PolygonGraphics({
extrudedHeight:10000,
//height:1000,
closeTop:false,
closeButton:false,
//fromDegreesArrayHeights(113,31,高程)，則直接顯示高程，按照西-北-東-南的逆時針方向，否則形狀會出乎想象
hierarchy : Cesium.Cartesian3.fromDegreesArray([114, 31.0,
114,33,
113.0, 33.0,
113.0, 31.0]),
material : Cesium.Color.RED
});
var polygonshow = myviewer.entities.add({
name:"polygon01",
polygon:myPolygon1
})；
//5、polyline
var mypolyline = new Cesium.PolylineGraphics({
positions:Cesium.Cartesian3.fromDegreesArray([123,31,103,31]),
width:10,
material:Cesium.Color.BLACK,
clampToGround:true,
material: new Cesium.PolylineArrowMaterialProperty(Cesium.Color.PURPLE), //體會編碼，下面的覆蓋上面,material對應了一個實例
arcType:Cesium.ArcType.GEODESIC //這種是測地線，另一種 arcType:Cesium.ArcType.RHUMB是航海線
})
var polylineshow = myviewer.entities.add({
name:"mypolyine",
polyline :mypolyline
});
myviewer.flyTo(polylineshow);
6、entity實現的一些輔助功能
6.1加載或生成entity的朝向:orientation
例如：
var position = Cesium.Cartesian3.fromDegrees(118.6265572,32.0642026, 0.0);
//x,y,z軸的傾斜角度
var hpr = new Cesium.HeadingPitchRoll(Cesium.Math.toRadians(135), 0.0, 0.0);
//確定目標x,y,z軸方向
var orientation = Cesium.Transforms.headingPitchRollQuaternion(position, hpr);
6.2entity的屬性
properties: {
Latitude: 32.0642026,
Longitude: 118.6265572,
"車主": "張三",
"車牌號": "鄂A 0000"
},