纯代码方式实现cesium倾斜摄影单体化和楼栋分层

效果如图

原理：实例出一些透明的eneity立方体，通过调位置大小，覆盖在你想单体化的楼栋上面，再通过ClassificationPrimitive反选倾斜摄影赋予颜色。

如图：

这是还没透明化的entity实体，我们只要把这些实体赋予特定的id，再把它们透明化，我们就能获得点击这个实体（这栋楼）的对象了。

倾斜摄影的地址：百度网盘请输入提取码
提取码：ztde

关键代码

entity透明柱体

数据

// 分层楼栋实体数据
cylinders: {first: {cylinder1: 18.7,id: 'first'},second: {cylinder1: 23,id: 'second'},third: {cylinder1: 27.3,id: 'third'},four: {cylinder1: 31.7,id: 'four'}
}

实例方法

// 楼栋柱体实体
cylinderModel () {viewer.entities.add({id: 'building1',name: '{"cesiumType": "cylinderBuilding"}',position: Cesium.Cartesian3.fromDegrees(113.06090721905448, 22.645399902809583, 45),orientation: Cesium.Transforms.headingPitchRollQuaternion(new Cesium.Cartesian3.fromDegrees(113.06090721905448, 22.645399902809583, 45),new Cesium.HeadingPitchRoll(Cesium.Math.toRadians(140), Cesium.Math.toRadians(0), Cesium.Math.toRadians(0))),cylinder: {length: 80, // 圆柱体高度topRadius: 23, // 圆柱体顶部半径bottomRadius: 23, // 圆柱体底部半径material: Cesium.Color.fromCssColorString('rgba(255, 255, 255, 0.01)'), // 材质// material: Cesium.Color.fromCssColorString('rgba(255, 255, 255, 1)'), // 材质slices: 100, // 圆柱周围圆圈分段数numberOfVerticalLines: 100 // 圆柱垂直线分段数}})
},
// 楼栋分层实体
boxFloodModel (data) {viewer.entities.add({id: this.cylinders[data].id,name: '{"cesiumType": "boxFlood"}',position: Cesium.Cartesian3.fromDegrees(113.06025929925363, 22.645596984482292, this.cylinders[data].cylinder1),orientation: Cesium.Transforms.headingPitchRollQuaternion(new Cesium.Cartesian3.fromDegrees(113.06025929925363, 22.645596984482292, this.cylinders[data].cylinder1),new Cesium.HeadingPitchRoll(Cesium.Math.toRadians(116), Cesium.Math.toRadians(0), Cesium.Math.toRadians(0))),box: {dimensions: new Cesium.Cartesian3(20.6, 47, 4),material: Cesium.Color.fromCssColorString('rgba(255, 255, 255, 0.01)') // 材质// material: Cesium.Color.fromCssColorString('rgba(255, 255, 255, 1)') // 材质}})
},

调用

self.cylinderModel()
self.boxFloodModel('first')
self.boxFloodModel('second')
self.boxFloodModel('third')
self.boxFloodModel('four')

ClassificationPrimitive倾斜摄影模型反选

数据

layered: {first: {priipt1: 0,priipt2: 0,priipt3: 0,priipt4: 0,priipt5: 7,priipt6: 18.7,priipt7: 65,priipt8: 50,priipt9: 4,color: '#D22809'},second: {priipt1: 0,priipt2: 0,priipt3: 0,priipt4: 0,priipt5: 7,priipt6: 23,priipt7: 65,priipt8: 50,priipt9: 4,color: '#2932E1'},third: {priipt1: 0,priipt2: 0,priipt3: 0,priipt4: 0,priipt5: 7,priipt6: 27.3,priipt7: 65,priipt8: 50,priipt9: 4,color: '#40C057'},four: {priipt1: 0,priipt2: 0,priipt3: 0,priipt4: 0,priipt5: 7,priipt6: 31.7,priipt7: 65,priipt8: 50,priipt9: 4,color: '#FF6600'}
},

实例方法

// 分层单体化
layeredTilesModel (data) {let scene = viewer.sceneif (tilesFloodTest) {tilesFloodTest.destroy()}var center = new Cesium.Cartesian3(-2306846.095427444,5418737.767193025,2440539.2209737385)var modelMatrix = Cesium.Transforms.eastNorthUpToFixedFrame(center)var hprRotation = Cesium.Matrix3.fromHeadingPitchRoll(new Cesium.HeadingPitchRoll(Number(this.layered[data].priipt1), Number(this.layered[data].priipt2), Number(this.layered[data].priipt3)))var hpr = Cesium.Matrix4.fromRotationTranslation(hprRotation,new Cesium.Cartesian3(Number(this.layered[data].priipt4), Number(this.layered[data].priipt5), Number(this.layered[data].priipt6)))Cesium.Matrix4.multiply(modelMatrix, hpr, modelMatrix)tilesFloodTest = scene.primitives.add(new Cesium.ClassificationPrimitive({geometryInstances: new Cesium.GeometryInstance({geometry: Cesium.BoxGeometry.fromDimensions({vertexFormat: Cesium.PerInstanceColorAppearance.VERTEX_FORMAT,dimensions: new Cesium.Cartesian3(Number(this.layered[data].priipt7), Number(this.layered[data].priipt8), Number(this.layered[data].priipt9))}),modelMatrix: modelMatrix,attributes: {color: Cesium.ColorGeometryInstanceAttribute.fromColor(Cesium.Color.fromCssColorString(this.layered[data].color).withAlpha(0.5)),show: new Cesium.ShowGeometryInstanceAttribute(true)},id: 'volume 1'}),classificationType: Cesium.ClassificationType.CESIUM_3D_TILE}))
},
// 楼栋单体化
tilesModel () {let scene = viewer.scene// 世界坐标 非经纬度var center = new Cesium.Cartesian3(-2306928.4726084634,5418717.874638036,2440505.7478268957)var modelMatrix = Cesium.Transforms.eastNorthUpToFixedFrame(center)// 第一个参数是y轴偏移角度，第二个参数是x轴偏移角度，第三个参数是z轴偏移角度var hprRotation = Cesium.Matrix3.fromHeadingPitchRoll(new Cesium.HeadingPitchRoll(0.4, 0, 0))// 第一个参数是遮罩整体的横向定位，第二个参数是竖向定位，第三个参数是高度定位var hpr = Cesium.Matrix4.fromRotationTranslation(hprRotation,new Cesium.Cartesian3(-14, 17, 93.5))Cesium.Matrix4.multiply(modelMatrix, hpr, modelMatrix)tilesModelObj = scene.primitives.add(new Cesium.ClassificationPrimitive({geometryInstances: new Cesium.GeometryInstance({geometry: Cesium.BoxGeometry.fromDimensions({vertexFormat: Cesium.PerInstanceColorAppearance.VERTEX_FORMAT,// 第一个参数是遮罩的整体横向长度，第二个参数是竖向长度，第三个参数是整体高度dimensions: new Cesium.Cartesian3(Number(65), Number(50), Number(160))}),modelMatrix: modelMatrix,attributes: {color: Cesium.ColorGeometryInstanceAttribute.fromColor(Cesium.Color.fromCssColorString('#F26419').withAlpha(0.5)),show: new Cesium.ShowGeometryInstanceAttribute(true)},id: 'volume 1'}),classificationType: Cesium.ClassificationType.CESIUM_3D_TILE}))
},

cesium鼠标点击事件

// 得到当前三维场景
let scene = viewer.scene
// 得到当前三维场景的椭球体
let ellipsoid = scene.globe.ellipsoid
let entity = viewer.entities.add({label: {show: false}
})
let longitudeString = null
let latitudeString = null
let height = null
// 定义当前场景的画布元素的事件处理
let handler = new Cesium.ScreenSpaceEventHandler(scene.canvas)
//  设置鼠标点击事件
handler.setInputAction(function (event) {let cartesian = viewer.camera.pickEllipsoid(event.position, ellipsoid)if (cartesian) {console.log(cartesian)// 将笛卡尔坐标转换为地理坐标let cartographic = ellipsoid.cartesianToCartographic(cartesian)// 将弧度转为度的十进制度表示longitudeString = Cesium.Math.toDegrees(cartographic.longitude)latitudeString = Cesium.Math.toDegrees(cartographic.latitude)// 获取相机高度height = Math.ceil(viewer.camera.positionCartographic.height)entity.position = cartesianconsole.log(longitudeString)console.log(latitudeString)let pick = viewer.scene.pick(event.position)if (Cesium.defined(pick) && pick) {if (pick.id && pick.id.name) {let modelDataObj = JSON.parse(pick.id.name)// 检测点击楼栋实体if (modelDataObj.cesiumType === 'cylinderBuilding') {self.buildMessageBoxShow = truelet winpos = viewer.scene.cartesianToCanvasCoordinates(pick.id.position._value)// 计算弹框的位置setTimeout(() => {let mainMessageBoxDom = document.querySelector('.buildMessageBox')let winposWihth = mainMessageBoxDom.offsetWidthlet winposHeight = mainMessageBoxDom.offsetHeightmainMessageBoxDom.style.left = (Math.floor(winpos.x) - (winposWihth / 2) + 230) + 'px'mainMessageBoxDom.style.top = (Math.floor(winpos.y) - winposHeight - 70) + 'px'self.tilesModel()}, 10)// 检测点击到分层实体} else if (modelDataObj.cesiumType === 'boxFlood') {self.layeredTilesModel(pick.id.id)}} else {self.buildMessageBoxShow = falseif (tilesModelObj) {tilesModelObj.destroy()}if (tilesFloodTest) {tilesFloodTest.destroy()}}} else {self.buildMessageBoxShow = falseif (tilesModelObj) {tilesModelObj.destroy()}if (tilesFloodTest) {tilesFloodTest.destroy()}}} else {entity.label.show = false}
}, Cesium.ScreenSpaceEventType.LEFT_CLICK)

完整代码

<template><div><div id="cesiumDemo"></div><!-- 楼栋信息弹框 --><transition name="el-fade-in-linear"><div class="buildMessageBox messageBox" v-show="buildMessageBoxShow"><div class="topLine"></div><div class="slantLine"></div><div class="title"><span class="messageBoxTit">A6栋</span></div><div class="contList"><span class="messageBoxTit">电耗：</span><span class="messageVal">25410kw-h</span></div><div class="contList"><span class="messageBoxTit">水耗：</span><span class="messageVal">1149m³</span></div><div class="contList"><span class="messageBoxTit">已入住人口：</span><span class="messageVal">56人</span></div></div></transition></div>
</template><script>
let viewer
let tilesModelObj
let tilesFloodTest
export default {name: 'tilesMonomer',data () {return {buildMessageBoxShow: false,mapMouseDown: false,// 分层单体化反选数据layered: {first: {priipt1: 0,priipt2: 0,priipt3: 0,priipt4: 0,priipt5: 7,priipt6: 18.7,priipt7: 65,priipt8: 50,priipt9: 4,color: '#D22809'},second: {priipt1: 0,priipt2: 0,priipt3: 0,priipt4: 0,priipt5: 7,priipt6: 23,priipt7: 65,priipt8: 50,priipt9: 4,color: '#2932E1'},third: {priipt1: 0,priipt2: 0,priipt3: 0,priipt4: 0,priipt5: 7,priipt6: 27.3,priipt7: 65,priipt8: 50,priipt9: 4,color: '#40C057'},four: {priipt1: 0,priipt2: 0,priipt3: 0,priipt4: 0,priipt5: 7,priipt6: 31.7,priipt7: 65,priipt8: 50,priipt9: 4,color: '#FF6600'}},// 分层楼栋实体数据cylinders: {first: {cylinder1: 18.7,id: 'first'},second: {cylinder1: 23,id: 'second'},third: {cylinder1: 27.3,id: 'third'},four: {cylinder1: 31.7,id: 'four'}}}},created () {},mounted () {this.getCesiumDem()},destroyed () {},methods: {// 保利倾斜摄影set3Dtitle2 () {let translation = Cesium.Cartesian3.fromArray([0, 0, -170])let m = Cesium.Matrix4.fromTranslation(translation)let tileset2 = new Cesium.Cesium3DTileset({url: 'http://127.0.0.1/data/3dtiles/b3dm/tileset.json',modelMatrix: m,maximumScreenSpaceError: 64 // 默认16})viewer.scene.primitives.add(tileset2)},// 分层单体化layeredTilesModel (data) {let scene = viewer.sceneif (tilesFloodTest) {tilesFloodTest.destroy()}var center = new Cesium.Cartesian3(-2306846.095427444,5418737.767193025,2440539.2209737385)var modelMatrix = Cesium.Transforms.eastNorthUpToFixedFrame(center)var hprRotation = Cesium.Matrix3.fromHeadingPitchRoll(new Cesium.HeadingPitchRoll(Number(this.layered[data].priipt1), Number(this.layered[data].priipt2), Number(this.layered[data].priipt3)))var hpr = Cesium.Matrix4.fromRotationTranslation(hprRotation,new Cesium.Cartesian3(Number(this.layered[data].priipt4), Number(this.layered[data].priipt5), Number(this.layered[data].priipt6)))Cesium.Matrix4.multiply(modelMatrix, hpr, modelMatrix)tilesFloodTest = scene.primitives.add(new Cesium.ClassificationPrimitive({geometryInstances: new Cesium.GeometryInstance({geometry: Cesium.BoxGeometry.fromDimensions({vertexFormat: Cesium.PerInstanceColorAppearance.VERTEX_FORMAT,dimensions: new Cesium.Cartesian3(Number(this.layered[data].priipt7), Number(this.layered[data].priipt8), Number(this.layered[data].priipt9))}),modelMatrix: modelMatrix,attributes: {color: Cesium.ColorGeometryInstanceAttribute.fromColor(Cesium.Color.fromCssColorString(this.layered[data].color).withAlpha(0.5)),show: new Cesium.ShowGeometryInstanceAttribute(true)},id: 'volume 1'}),classificationType: Cesium.ClassificationType.CESIUM_3D_TILE}))},// 楼栋单体化tilesModel () {let scene = viewer.scene// 世界坐标 非经纬度var center = new Cesium.Cartesian3(-2306928.4726084634,5418717.874638036,2440505.7478268957)var modelMatrix = Cesium.Transforms.eastNorthUpToFixedFrame(center)// 第一个参数是y轴偏移角度，第二个参数是x轴偏移角度，第三个参数是z轴偏移角度var hprRotation = Cesium.Matrix3.fromHeadingPitchRoll(new Cesium.HeadingPitchRoll(0.4, 0, 0))// 第一个参数是遮罩整体的横向定位，第二个参数是竖向定位，第三个参数是高度定位var hpr = Cesium.Matrix4.fromRotationTranslation(hprRotation,new Cesium.Cartesian3(-14, 17, 93.5))Cesium.Matrix4.multiply(modelMatrix, hpr, modelMatrix)tilesModelObj = scene.primitives.add(new Cesium.ClassificationPrimitive({geometryInstances: new Cesium.GeometryInstance({geometry: Cesium.BoxGeometry.fromDimensions({vertexFormat: Cesium.PerInstanceColorAppearance.VERTEX_FORMAT,// 第一个参数是遮罩的整体横向长度，第二个参数是竖向长度，第三个参数是整体高度dimensions: new Cesium.Cartesian3(Number(65), Number(50), Number(160))}),modelMatrix: modelMatrix,attributes: {color: Cesium.ColorGeometryInstanceAttribute.fromColor(Cesium.Color.fromCssColorString('#F26419').withAlpha(0.5)),show: new Cesium.ShowGeometryInstanceAttribute(true)},id: 'volume 1'}),classificationType: Cesium.ClassificationType.CESIUM_3D_TILE}))},// 楼栋柱体实体cylinderModel () {viewer.entities.add({id: 'building1',name: '{"cesiumType": "cylinderBuilding"}',position: Cesium.Cartesian3.fromDegrees(113.06090721905448, 22.645399902809583, 45),orientation: Cesium.Transforms.headingPitchRollQuaternion(new Cesium.Cartesian3.fromDegrees(113.06090721905448, 22.645399902809583, 45),new Cesium.HeadingPitchRoll(Cesium.Math.toRadians(140), Cesium.Math.toRadians(0), Cesium.Math.toRadians(0))),cylinder: {length: 80, // 圆柱体高度topRadius: 23, // 圆柱体顶部半径bottomRadius: 23, // 圆柱体底部半径material: Cesium.Color.fromCssColorString('rgba(255, 255, 255, 0.01)'), // 材质// material: Cesium.Color.fromCssColorString('rgba(255, 255, 255, 1)'), // 材质slices: 100, // 圆柱周围圆圈分段数numberOfVerticalLines: 100 // 圆柱垂直线分段数}})},// 楼栋分层实体boxFloodModel (data) {viewer.entities.add({id: this.cylinders[data].id,name: '{"cesiumType": "boxFlood"}',position: Cesium.Cartesian3.fromDegrees(113.06025929925363, 22.645596984482292, this.cylinders[data].cylinder1),orientation: Cesium.Transforms.headingPitchRollQuaternion(new Cesium.Cartesian3.fromDegrees(113.06025929925363, 22.645596984482292, this.cylinders[data].cylinder1),new Cesium.HeadingPitchRoll(Cesium.Math.toRadians(116), Cesium.Math.toRadians(0), Cesium.Math.toRadians(0))),box: {dimensions: new Cesium.Cartesian3(20.6, 47, 4),material: Cesium.Color.fromCssColorString('rgba(255, 255, 255, 0.01)') // 材质// material: Cesium.Color.fromCssColorString('rgba(255, 255, 255, 1)') // 材质}})},// 实例cesiumgetCesiumDem () {let self = thisCesium.Ion.defaultAccessToken = 'eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJqdGkiOiIxZWFlYjAyYS0xN2JlLTQ0OTItOGNkOC05YWJlNGY0MjI2NmQiLCJpZCI6NDkyMjYsImlhdCI6MTYxNzM0NjA3N30.crkTg0Logk_JUA7BROy0r9RqTJWCi8NZpTyu4qI11Fo'viewer = new Cesium.Viewer('cesiumDemo', {animation: false, // 是否显示动画控件baseLayerPicker: false, // 是否显示图层选择控件geocoder: false, // 是否显示地名查找控件timeline: false, // 是否显示时间线控件sceneModePicker: false, // 是否显示投影方式控件navigationHelpButton: false, // 是否显示帮助信息控件infoBox: false, // 是否显示点击要素之后显示的信息fullscreenButton: false, // 是否显示全屏按钮selectionIndicator: false, // 是否显示选中指示框scene3DOnly: true,homeButton: false,terrainProvider: new Cesium.EllipsoidTerrainProvider({})})self.set3Dtitle2()self.cylinderModel()self.boxFloodModel('first')self.boxFloodModel('second')self.boxFloodModel('third')self.boxFloodModel('four')// 地图事件开始// 得到当前三维场景let scene = viewer.scene// 得到当前三维场景的椭球体let ellipsoid = scene.globe.ellipsoidlet entity = viewer.entities.add({label: {show: false}})let longitudeString = nulllet latitudeString = nulllet height = null// 定义当前场景的画布元素的事件处理let handler = new Cesium.ScreenSpaceEventHandler(scene.canvas)// 设置鼠标移动事件的处理函数，这里负责监听x,y坐标值变化handler.setInputAction(function (event) {if (self.mapMouseDown === true) {self.buildMessageBoxShow = falseif (tilesModelObj) {tilesModelObj.destroy()}if (tilesFloodTest) {tilesFloodTest.destroy()}}}, Cesium.ScreenSpaceEventType.MOUSE_MOVE)// 鼠标按下handler.setInputAction(function (movement) {self.mapMouseDown = true}, Cesium.ScreenSpaceEventType.LEFT_DOWN)// 鼠标弹起handler.setInputAction(function (movement) {self.mapMouseDown = false}, Cesium.ScreenSpaceEventType.LEFT_UP)//  设置鼠标点击事件handler.setInputAction(function (event) {let cartesian = viewer.camera.pickEllipsoid(event.position, ellipsoid)if (cartesian) {console.log(cartesian)// 将笛卡尔坐标转换为地理坐标let cartographic = ellipsoid.cartesianToCartographic(cartesian)// 将弧度转为度的十进制度表示longitudeString = Cesium.Math.toDegrees(cartographic.longitude)latitudeString = Cesium.Math.toDegrees(cartographic.latitude)// 获取相机高度height = Math.ceil(viewer.camera.positionCartographic.height)entity.position = cartesianconsole.log(longitudeString)console.log(latitudeString)let pick = viewer.scene.pick(event.position)if (Cesium.defined(pick) && pick) {if (pick.id && pick.id.name) {let modelDataObj = JSON.parse(pick.id.name)// 检测点击楼栋实体if (modelDataObj.cesiumType === 'cylinderBuilding') {self.buildMessageBoxShow = truelet winpos = viewer.scene.cartesianToCanvasCoordinates(pick.id.position._value)// 计算弹框的位置setTimeout(() => {let mainMessageBoxDom = document.querySelector('.buildMessageBox')let winposWihth = mainMessageBoxDom.offsetWidthlet winposHeight = mainMessageBoxDom.offsetHeightmainMessageBoxDom.style.left = (Math.floor(winpos.x) - (winposWihth / 2) + 230) + 'px'mainMessageBoxDom.style.top = (Math.floor(winpos.y) - winposHeight - 70) + 'px'self.tilesModel()}, 10)// 检测点击到分层实体} else if (modelDataObj.cesiumType === 'boxFlood') {self.layeredTilesModel(pick.id.id)}} else {self.buildMessageBoxShow = falseif (tilesModelObj) {tilesModelObj.destroy()}if (tilesFloodTest) {tilesFloodTest.destroy()}}} else {self.buildMessageBoxShow = falseif (tilesModelObj) {tilesModelObj.destroy()}if (tilesFloodTest) {tilesFloodTest.destroy()}}} else {entity.label.show = false}}, Cesium.ScreenSpaceEventType.LEFT_CLICK)// 地图事件结束// 保利倾斜摄影viewer.camera.flyTo({destination: Cesium.Cartesian3.fromDegrees(113.060458, 22.640675, 180),orientation: {heading: Cesium.Math.toRadians(20),pitch: Cesium.Math.toRadians(-20),roll: 0}})}}
}
</script>
<style scoped lang="scss">
#cesiumDemo {width: 100vw;height: 100vh;
}
.ceshiIptBox {position: absolute;left: 50px;top: 20px;width: 300px;z-index: 9;color: white;font-size: 13px;
}
/* 隐藏cesium标志 */
.cesium-viewer .cesium-widget-credits {display: none;
}
.modeView {position: absolute;right: 10px;top: 7px;cursor: pointer;
}
.messageBoxTit {color: #ffffff;
}
.messageVal {color: #c7ff06;
}
.messageBox {position: absolute;left: -88px;top: -190px;/* border-radius: 5px; */background: rgba(41, 192, 183, 0.6);padding: 6px;box-shadow: 0 0 10px rgb(0, 110, 150);z-index: 8;color: #30fff5;/* box-shadow: 0 0 20px #30fff5 inset !important; */background-color: rgba(0, 54, 120, 0.7);width: 200px;border: 2px #1aabff solid;.title {font-size: 14px;font-weight: bold;margin-left: 4px;line-height: 22px;}.contList {font-size: 12px;font-weight: bold;margin-left: 10px;line-height: 23px;margin-right: 10px;}.topLine {border-top: 1px #30fff5 solid;position: absolute;left: -30px;top: 68px;width: 30px;}.slantLine {border-top: 1px #30fff5 solid;position: absolute;left: -136px;top: 118px;width: 129px;transform: rotateZ(-50deg);}
}
</style>

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纯代码方式实现cesium倾斜摄影单体化和楼栋分层

关键代码

entity透明柱体

ClassificationPrimitive倾斜摄影模型反选

cesium鼠标点击事件

完整代码

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