App.js

     Cesium.Ion.defaultAccessToken = 'eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJqdGkiOiJiNWFjZDJiMy1hYzk3LTQ2YWUtYWVjYi01MDk1OGVlZGI0NTgiLCJpZCI6MTEwNzEsInNjb3BlcyI6WyJhc3IiLCJnYyJdLCJpYXQiOjE1NTgwMjE1Mjh9.lF6TGAJrX3qMGBt5egdAA7SJYNnaYX17mhURwGg_Kbg';

    //////////////////////////////////////////////////////////////////////////
    // Creating the Viewer
    //////////////////////////////////////////////////////////////////////////

     var viewer = new Cesium.Viewer('cesiumContainer', {
         scene3DOnly: true,
         selectionIndicator: false,
		 timeline: false,
		 animation: false,
		 shadow: false,
		 // // Set default basemap
		 imageryProvider : new Cesium.MapboxImageryProvider({
                           mapId: 'mapbox.streets'
                           }),
		 baseLayerPicker: true
		 
     });
     viewer.clock.shouldAnimate = false;
     viewer.clock.startTime = Cesium.JulianDate.fromIso8601("2019-09-20T13:00:00Z");
     viewer.clock.stopTime = Cesium.JulianDate.fromIso8601("2019-09-20T13:20:00Z");
     viewer.clock.currentTime = Cesium.JulianDate.fromIso8601("2019-09-20T13:00:00Z");
	 document.getElementById("legend").style.display = "none"; //defining legends hidden by default
	 
    //////////////////////////////////////////////////////////////////////////
    // Configuring the camera
    //////////////////////////////////////////////////////////////////////////
    // // Create an initial camera view
     var initialPosition = Cesium.Rectangle.fromDegrees(-73.9907, 40.6776, -73.9856, 40.6809);
     //var initialOrientation = new Cesium.HeadingPitchRoll.fromDegrees(1.0820674827650922, -0.6183562882750495, 0.003599879447971688);
     var homeCameraView = {
         destination : initialPosition
         //orientation : initialOrientation,
		 //endTransform: Cesium.Matrix4.IDENTITY
      };
    // // Set the initial view
     viewer.scene.camera.setView(homeCameraView);
	 console.log (Cesium.Rectangle.fromDegrees);
	// set home button to initial view 
	 
	 viewer.homeButton.viewModel.command.beforeExecute.addEventListener(function (e) {
        e.cancel = true;
         viewer.scene.camera.flyTo(homeCameraView);
     });
	console.log (viewer.scene.camera);
    //////////////////////////////////////////////////////////////////////////
    // Loading GeoJSON with polygon outline - strokewidth is an issue with windows
    //////////////////////////////////////////////////////////////////////////
    // var jsonOptions = {
       // stroke: Cesium.Color.DARKRED,
        //fill: Cesium.Color.WHITESMOKE.withAlpha(0),
       // strokeWidth: 5         
    // };
	// var gowanusboundary = Cesium.GeoJsonDataSource.load('./Source/Data/Gowanus.geojson',jsonOptions);
    // viewer.dataSources.add(gowanusboundary);

    //////////////////////////////////////////////////////////////////////////
    // Load 3D Tileset
    //////////////////////////////////////////////////////////////////////////

    var currentgowanus = viewer.scene.primitives.add(new Cesium.Cesium3DTileset({url: './Source/Data/Bldg/Current_Gowanus/tileset.json'}));
	var bau2050gowanus = viewer.scene.primitives.add(new Cesium.Cesium3DTileset({url: './Source/Data/Bldg/BAU2050_Gowanus/tileset.json'}));
	var bp2050gowanus = viewer.scene.primitives.add(new Cesium.Cesium3DTileset({url: './Source/Data/Bldg/BP2050_Gowanus/tileset.json'}));
	currentgowanus.show = true;
	bau2050gowanus.show = false;
	bp2050gowanus.show = false;
	//currentgowanus.style = new Cesium.Cesium3DTileStyle({
	//color : 'color("white")'});
	//bau2050gowanus.style = new Cesium.Cesium3DTileStyle({
	//color : 'color("BLACK")'});
	var selectscenario = document.getElementById('selectscenario');
    function setscenario() {
	 var selectedscenario = selectscenario.options[selectscenario.selectedIndex].value;
	 if (selectedscenario === 'current') {currentgowanus.show = true;
	                                      bau2050gowanus.show = false;
                                          bp2050gowanus.show = false;} 
	 else if (selectedscenario === 'bau') {currentgowanus.show = false;
	                                      bau2050gowanus.show = true; 
										 bp2050gowanus.show = false;}
	else if (selectedscenario === 'bp') {currentgowanus.show = false;
	                                     bau2050gowanus.show = false; 
										  bp2050gowanus.show = true;}									  
	 }
	selectscenario.addEventListener('change', setscenario);
    //////////////////////////////////////////////////////////////////////////
    // Style 3D Tileset
    //////////////////////////////////////////////////////////////////////////

     var defaultstyle = new Cesium.Cesium3DTileStyle({
         color : "color('WHITE')",
		  show: true
     });
	 
	 var energydemandstyle = new Cesium.Cesium3DTileStyle({
         color : {
            conditions : [
					["(${Specific_space_heating_demand} === 0)", "color('#000000')"],
					["(${Specific_space_heating_demand} > 0)  && (${Specific_space_heating_demand} < 60)", "color('#33ACFF')"],
                    ["(${Specific_space_heating_demand} >= 60) && (${Specific_space_heating_demand} < 120)", "color('#2AFF00')"],
                    ["(${Specific_space_heating_demand} >= 120) && (${Specific_space_heating_demand} < 170)", "color('#FFFF00')"],
                    ["(${Specific_space_heating_demand} >= 170) && (${Specific_space_heating_demand} < 230)", "color('#FFA200')"],
                    ["(${Specific_space_heating_demand} >= 230)", "color('#FF0000')"]
             ]
         },
		 show: true
     });
	 	
	 var colorstyle1 = document.getElementById('3dbuildings');
	 var colorstyle2 = document.getElementById('heatdemand');
     function set3DColorStyle() {
        if (colorstyle1.checked) {
             currentgowanus.style = defaultstyle;
			 bau2050gowanus.style = defaultstyle;
			 bp2050gowanus.style = defaultstyle;
			 document.getElementById("legend").style.display = "none";
		      } 
		else if (colorstyle2.checked) {
             currentgowanus.style = energydemandstyle;
			 bau2050gowanus.style = energydemandstyle;
			 bp2050gowanus.style = energydemandstyle;
			 document.getElementById("legend").style.display = "block";
		      }
        }
	 
	 colorstyle1.addEventListener('change', set3DColorStyle);
     colorstyle2.addEventListener('change', set3DColorStyle);

    //////////////////////////////////////////////////////////////////////////
    // Custom mouse interaction for highlighting and selecting
    //////////////////////////////////////////////////////////////////////////
//Style the overlay
var nameOverlay = document.createElement('div');
viewer.container.appendChild(nameOverlay);
nameOverlay.className = 'backdrop';
nameOverlay.style.display = 'none';
nameOverlay.style.position = 'absolute';
nameOverlay.style.bottom = '0';
nameOverlay.style.left = '0';
nameOverlay.style['pointer-events'] = 'none';
nameOverlay.style.padding = '4px';
nameOverlay.style.backgroundColor = 'black';
nameOverlay.style.fontFamily = 'Fira Sans, sans-serif';

//Selecting a Building
var Pickers_3DTile_Activated = true;
// Information about the currently highlighted feature
function active3DTilePicker() {
    var highlighted = {
        feature: undefined,
        originalColor: new Cesium.Color()
    };
    // Information about the currently selected feature
    var selected = {
        feature: undefined,
        originalColor: new Cesium.Color()
    };

    // An entity object which will hold info about the currently selected feature for infobox display
    var selectedEntity = new Cesium.Entity();

    // Get default left click handler for when a feature is not picked on left click
    var clickHandler = viewer.screenSpaceEventHandler.getInputAction(Cesium.ScreenSpaceEventType.LEFT_CLICK);
    // Color a feature yellow on hover.
    viewer.screenSpaceEventHandler.setInputAction(function onMouseMove(movement) {
        if (Pickers_3DTile_Activated) {
            // If a feature was previously highlighted, undo the highlight
            if (Cesium.defined(highlighted.feature)) {
                highlighted.feature.color = highlighted.originalColor;
                highlighted.feature = undefined;
            }
            // Pick a new feature
            var picked3DtileFeature = viewer.scene.pick(movement.endPosition);
            if (!Cesium.defined(picked3DtileFeature)) {
                nameOverlay.style.display = 'none';
                return;
            }
            // A feature was picked, so show it's overlay content
            nameOverlay.style.display = 'block';
            nameOverlay.style.bottom = viewer.canvas.clientHeight - movement.endPosition.y + 'px';
            nameOverlay.style.left = movement.endPosition.x + 'px';
            var name = picked3DtileFeature.getProperty('PrimaryUsageZoneType');

            if (!Cesium.defined(name)) {
                name = picked3DtileFeature.getProperty('PrimaryUsageZoneType');
            }
            nameOverlay.textContent = name;
            // Highlight the feature if it's not already selected.
            if (picked3DtileFeature !== selected.feature) {
                highlighted.feature = picked3DtileFeature;
                Cesium.Color.clone(picked3DtileFeature.color, highlighted.originalColor);
                picked3DtileFeature.color = Cesium.Color.GREY;
            }
        }
    }, Cesium.ScreenSpaceEventType.MOUSE_MOVE);

    // Color a feature on selection and show metadata in the InfoBox.
    viewer.screenSpaceEventHandler.setInputAction(function onLeftClick(movement) {

        if (Pickers_3DTile_Activated) {
            // If a feature was previously selected, undo the highlight
            if (Cesium.defined(selected.feature)) {
                selected.feature.color = selected.originalColor;
                selected.feature = undefined;
                $("#chart").html("");
                var options = null;
            }
            // Pick a new feature
            var picked3DtileFeature = viewer.scene.pick(movement.position);
            if (!Cesium.defined(picked3DtileFeature)) {
                clickHandler(movement);
                return;
            }
            // Select the feature if it's not already selected
            if (selected.feature === picked3DtileFeature) {
                return;
            }
            selected.feature = picked3DtileFeature;
            // Save the selected feature's original color
            if (picked3DtileFeature === highlighted.feature) {
                Cesium.Color.clone(highlighted.originalColor, selected.originalColor);
                highlighted.feature = undefined;
            } else {
                Cesium.Color.clone(picked3DtileFeature.color, selected.originalColor);
            }
            // Highlight newly selected feature
            picked3DtileFeature.color = Cesium.Color.AQUA;
            // Set feature infobox description
            var featureName = "Net Zero Gowanus 3D Viewer";
            selectedEntity.name = featureName;
            selectedEntity.description = 'Loading <div class="cesium-infoBox-loading"></div>';

            viewer.selectedEntity = selectedEntity;
            selectedEntity.description =
                '<table class="cesium-infoBox-defaultTable"><tbody>' +
                '<tr><th>Building ID</th><td>' + picked3DtileFeature.getProperty('GMLId') + '</td></tr>' +
                '<tr><th>Year of Construction</th><td>' + picked3DtileFeature.getProperty('Year of construction') + '</td></tr>' +
                '<tr><th>PLUTO Code</th><td>' + picked3DtileFeature.getProperty('ALKIS code') + '</td></tr>' +
                '<tr><th>Primary Building Usage</th><td>' + picked3DtileFeature.getProperty('PrimaryUsageZoneType') + '</td></tr>' +
				'<tr><th>Building Footprint </th><td>' + picked3DtileFeature.getProperty('Footprint area') + ' ' + 'm²' + '</td></tr>' +
                '<tr><th>Building Volume</th><td>' + picked3DtileFeature.getProperty('Gross volume') + ' ' + 'm³' + '</td></tr>' +
				'<tr><th>Mean U-value</th><td>' + picked3DtileFeature.getProperty('Mean Uvalue') + ' ' + 'W/m²·K' +'</td></tr>' +
				'<tr><th>Sp. Domestic Hot Water Demand</th><td>' + picked3DtileFeature.getProperty('Specific domestic hot water demand') + ' ' + 'kWh/m²·a' + '</td></tr>' +
				'<tr><th>Sp. Heating Demand</th><td>' + picked3DtileFeature.getProperty('Specific_space_heating_demand') + ' ' + 'kWh/m²·a' + '</td></tr>' +
				'</tbody></table>';

            console.log(picked3DtileFeature.getProperty('Specific_space_heating_demand'));

            //Fill Table
            options = {
                chart: {
                    foreColor: '#fff',
                    //                    background: '#fff',
                    fontFamily: 'Fira Sans, sans-serif',
                    type: 'line',
                    animations: {
                        enabled: true,
                        easing: 'easeinout',
                        speed: 800,
                        animateGradually: {
                            enabled: true,
                            delay: 150
                        },
                        dynamicAnimation: {
                            enabled: true,
                            speed: 350
                        }
                    },
                    zoom: {
                        enabled: false
                    }
                },
                dataLabels: {
                    enabled: false
                },
                tooltip: {
                    y: {
                        formatter: function (value) {
                            return value + " kW/h"
                        }
                    }
                },
                stroke: {
                    curve: 'straight'
                },
                series: [{
                    name: 'Heating Demand',
                    data: [picked3DtileFeature.getProperty('January Heating Demand'), picked3DtileFeature.getProperty('February Heating Demand'), picked3DtileFeature.getProperty('March Heating Demand'), picked3DtileFeature.getProperty('April Heating Demand'), picked3DtileFeature.getProperty('May Heating Demand'), picked3DtileFeature.getProperty('June Heating Demand'), picked3DtileFeature.getProperty('July Heating Demand'), picked3DtileFeature.getProperty('August Heating Demand'), picked3DtileFeature.getProperty('September Heating Demand'), picked3DtileFeature.getProperty('October Heating Demand'), picked3DtileFeature.getProperty('November Heating Demand'), picked3DtileFeature.getProperty('December Heating Demand')]
            }],
                title: {
                    text: 'Monthly Heating Demand',
                    align: 'center'
                },
                xaxis: {
                    categories: ['January', 'February', 'March', 'April', 'May', 'June', 'July', 'August', 'September', 'October', 'November', 'December'],
                },
                yaxis: {
                    title: {
                        text: "Heating Demand (kW/h)"
                    }
                }
            }
            var chart = new ApexCharts(document.querySelector("#chart"), options);
			chart.render();
                       
        }
    }, Cesium.ScreenSpaceEventType.LEFT_CLICK);
}

active3DTilePicker();
    //////////////////////////////////////////////////////////////////////////
    // Custom mouse interaction for highlighting and selecting
    //////////////////////////////////////////////////////////////////////////

function showTable() {
    var x = document.getElementById("chartcontainer");
    if (x.style.visibility === "hidden") {
        x.style.visibility = "visible";

    } else {
        x.style.visibility = "hidden";
    }
}