我们不是走在坑里就是走在前往坑的路上_(:зゝ∠)_
最终效果如图:(地图上添加一个“三维地图”的toolbar按钮,点击后在二维地图上贴上建好的三维模型点击显示弹框)
以下都在已经引入并且初始化maptalks地图的基础上,如何引入使用maptalks可以查看以下文章
https://www.zzvips.com/article/184419.html
1、安装maptalks.three包
npm install maptalks.three
2、安装three包
npm install three
3、安装obj-loader和mtl-loader包
npm i --save three-obj-mtl-loader
4、引入model模型文件到public下(放在这里是因为打包后读取路径问题,目前发现放在这里才能在打包后正确读取)
5、vue页面代码
引入包
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import * as three from 'three' import * as maptalks from 'maptalks' import { threelayer } from 'maptalks.three' import { mtlloader, objloader } from 'three-obj-mtl-loader' |
初始化的地图对象是
this.map
下面是渲染三维模型的方法
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// 渲染三维 draw3d() { const that = this // 三维地图 var three_flag = false // ///单体化交互开始 var intersected this .map.on( 'click' , function (e) { // console.log(e) var raycaster = new three.raycaster() var mouse = new three.vector2() const camera = threelayer.getcamera() const scene = threelayer.getscene() if (!scene) return const size = that.map.getsize() const width = size.width; const height = size.height mouse.x = (e.containerpoint.x / width) * 2 - 1 mouse.y = -((e.containerpoint.y) / height) * 2 + 1 raycaster.setfromcamera(mouse, camera) raycaster.lineprecision = 3 var intersects = raycaster.intersectobjects(scene.children, true ) // var intersects = raycaster.intersectobject(points); if (!intersects) return if (array.isarray(intersects) && intersects.length === 0) return console.log(intersects) // 这里我们操作第一个相交的物体 if (intersects.length > 0) { if (intersected != intersects[0].object) { if (intersected) { // intersected.material.color.sethex(intersected.currenthex); // intersected.scale.set(1,1,1); if (intersected.material.length === undefined) { intersected.material.color.sethex(intersected.currenthex) } else { for ( var i = 0; i < intersected.material.length; i++) { intersected.material[i].color.sethex(intersected.currenthex) } } } intersected = intersects[0].object // 设置相交的第一个物体的颜色 // intersected.currenthex = intersected.material[0].color.gethex(); intersected.currenthex = 16777215 // 将该物体设为随机的其他颜色 // intersected.material.opacity = 0.2; // intersected.material.transparent = true; // intersected.material.opacity = 0.2; // intersected.material.needsupdate = true; // intersected.material.transparent = false; // intersected.material.color.sethex(0xff0000); if (intersected.material.length === undefined) { intersected.material.color.sethex(0x1e90ff) } else { for ( var i = 0; i < intersected.material.length; i++) { intersected.material[i].color.sethex(0x1e90ff) } } } // ////////////// var lonlat = e.coordinate if ( true ) { var options = { 'autoopenon' : 'null' , // set to null if not to open window when clicking on map 'single' : true , 'width' : 410, 'height' : 190, 'custom' : true , 'autocloseon' : 'click' , 'dy' : -316, 'content' : '<div class="content build-content">' + '<div class="pop-img"><img src="http://pde56fqkk.bkt.clouddn.com/1544760152593.jpg"/><p class="pop-name build-pop-name" id="viewdetial"><span class="text-ellipsis" javascript" id="highlighter_300040">
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