上海建筑echarts polygons3D配置项内容和展示

      var building_sh = "/asset/get/s/data-1557121698984-0GsjhH1SJ.json";
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[121.38429, 31.20646], [121.3844, 31.20676], [121.38461, 31.20699], [121.3848, 31.20717], [121.38485, 31.20722], [121.38489, 31.20733], [121.38491, 31.20744]]}, {'height': 182, 'polygon': [[121.44208, 31.21896], [121.44185, 31.21889], [121.4415, 31.21978], [121.44173, 31.21984], [121.44192, 31.21938], [121.44196, 31.21927], [121.44208, 31.21896]]}, {'height': 457, 'polygon': [[121.42834, 31.24624], [121.4285, 31.24558], [121.42861, 31.24557], [121.42917, 31.24626], [121.42884, 31.24637], [121.42877, 31.24643], [121.4287, 31.24649], [121.42867, 31.24638], [121.42838, 31.24629], [121.42834, 31.24624]]}, {'height': 335, 'polygon': [[121.44958, 31.23189], [121.44945, 31.23209], [121.45022, 31.23243], [121.45027, 31.23233], [121.45026, 31.23211], [121.44958, 31.23189]]}, {'height': 160, 'polygon': [[121.41084, 31.22234], [121.41086, 31.22214], [121.41141, 31.22223], [121.41139, 31.22245], [121.41137, 31.22247], [121.41125, 31.22249], [121.41084, 31.22234]]}];

// $.getJSON(building_sh, function(buildingsGeoJSON) {
    var builds = buildingsGeoJSON.map(function(feature) {
        return {
            "type": "Feature",
            "properties": {
                "name": Math.random().toString(),
                "height": feature.height || 100
            },
            "geometry": {
                "type": "Polygon",
                "coordinates": [feature.polygon]
            }
        }
    })
    
    var regionsData = builds.map(function(feature) {
        return {
            name: feature.properties.name,
            value: Math.random() * 1,
            height: feature.properties.height,
            coords: feature.geometry.coordinates
        };
    });

    myChart.setOption({
        maptalks3D: {
            center: [121.486058,31.233217],
            zoom: 14.8,
            pitch: 55,
            urlTemplate: 'http://{s}.basemaps.cartocdn.com/dark_all/{z}/{x}/{y}.png',
            postEffect: {
                enable: true,
                FXAA: {
                    enable: true
                }
            },
        },
        series: [
            {
                type: 'polygons3D',
                coordinateSystem: 'maptalks3D',
                data: regionsData,
                shading: 'realistic',
                silent: true,
                instancing: true,
                itemStyle:{
                    color: 'rgba(107,139,188,1)'
                },
                realisticMaterial: {
                    metalness: 0.7,
                    roughness: 0.4,
                    // textureTiling: 1,
                    // detailTexture: '/asset/get/s/data-1554112593015-LLf-nuxnn.jpg'
                }
            }
        ]
    });
    
// });