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scope.js
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var centroids = null
var keysDictionary = null
var censusData = null
var isCursorOverPoint;
var map = null
var canvas = null
var isDragging;
var isCursorOverPoint;
var geojson;
//var radius = 100;
var keys = ["SE_T001_001","SE_T150_001",
"SE_T150_002","SE_T150_003","SE_T150_004","SE_T150_005","SE_T150_006","SE_T150_007",
"SE_T150_008","SE_T056_001","SE_T056_002","SE_T056_017","SE_T108_001","SE_T108_002",
"SE_T128_001","SE_T128_002","SE_T128_005","SE_T128_006","SE_T128_008",
"SE_T129_001","SE_T129_003","SE_T129_009","SE_T129_010"]
var colors = ["#87b733","#615c22","#4fc03e","#9a8b35","#399036","#afb035","#386325","#a6ab68","#71b46b","#6c892e"];
queue()
.defer(d3.csv,"centroids.csv")
.defer(d3.json,"data_census/scope_newKeys.json")
.defer(d3.csv,"scope_data.csv")
.await(dataDidLoad);
function dataDidLoad(error,centroidsFile,keysFile,dataFile) {
centroids = makeDictionary(centroidsFile)
keysDictionary = keysFile
censusData = makeDictionary(dataFile)
mapboxgl.accessToken = 'pk.eyJ1IjoiampqaWlhMTIzIiwiYSI6ImNpbDQ0Z2s1OTN1N3R1eWtzNTVrd29lMDIifQ.gSWjNbBSpIFzDXU2X5YCiQ';
var center = [-73.96563786279582,40.779221740166435]
var coordinates = document.getElementById('coordinates');
map = new mapboxgl.Map({
container: 'map',
style: 'mapbox://styles/jjjiia123/cjg9lpac314p42so3g7jb5fkx',
center: center,
zoom: 11,
minZoom:9,
maxZoom:11.5
});
geojson = {
"type": "FeatureCollection",
"features": [{
"type": "Feature",
"geometry": {
"type": "Point",
"coordinates": center
}
}]
};
map.on('load', function() {
// var pixelsPerMile = calculateRadius(map)
// map.addControl(new mapboxgl.ScaleControl({maxWidth: pixelsPerMile,unit: 'metric'}));
map.addControl(new mapboxgl.ScaleControl({maxWidth: 100,unit: 'imperial'}));
map.setFilter("blockgroups-highlight",["==","AFFGEOID",""]);
canvas = map.getCanvasContainer();
var pixelsPerMile = getRadiusFromScale()
var radius = pixelsPerMile
// Add a single point to the map
map.addSource('point', {
"type": "geojson",
"data": geojson
});
map.addLayer({
"id": "point",
"type": "circle",
"source": "point",
"paint": {
"circle-radius":radius,
"circle-color": "rgba(0,0,0,.1)"
}
});
map.addLayer({
"id": "point2",
"type": "circle",
"source": "point",
"paint": {
"circle-radius":radius*2,
"circle-color": "rgba(0,0,0,.1)"
}
});
map.addLayer({
"id": "point3",
"type": "circle",
"source": "point",
"paint": {
"circle-radius":radius*5,
"circle-color": "rgba(0,0,0,.1)"
}
});
map.on("move",function(){
var barWidth = d3.select(".mapboxgl-ctrl-scale").style("width")
var miles = d3.select(".mapboxgl-ctrl-scale").html()
var pixelsPerMile = getRadiusFromScale()
map.setPaintProperty('point', 'circle-radius', pixelsPerMile);
map.setPaintProperty('point2', 'circle-radius', pixelsPerMile*2);
map.setPaintProperty('point3', 'circle-radius', pixelsPerMile*5);
})
// When the cursor enters a feature in the point layer, prepare for dragging.
map.on('mouseenter', 'point3', function() {
map.setPaintProperty('point', 'circle-color', "rgba(0,0,0,.4)");
map.setPaintProperty('point2', 'circle-color', "rgba(0,0,0,.4)");
map.setPaintProperty('point3', 'circle-color', "rgba(0,0,0,.4)");
canvas.style.cursor = 'move';
isCursorOverPoint = true;
map.dragPan.disable();
});
map.on('mouseleave', 'point3', function() {
map.setPaintProperty('point', 'circle-color', "rgba(0,0,0,.1)");
map.setPaintProperty('point2', 'circle-color', "rgba(0,0,0,.1)");
map.setPaintProperty('point3', 'circle-color', "rgba(0,0,0,.1)");
canvas.style.cursor = '';
isCursorOverPoint = false;
map.dragPan.enable();
});
map.on('mousedown', mouseDown);
calculateRadius(map)
var xy = map.project([-73.96563786279582,40.779221740166435])
var point = {point:{x:xy.x,y:xy.y},lngLat:{lat:40.779221740166435,lng:-73.96563786279582}}
getFeatures(point,radius*5)
});
}
function getRadiusFromScale(){
var barWidth = parseFloat(d3.select(".mapboxgl-ctrl-scale").style("width").replace("px",""))
var miles = parseFloat(d3.select(".mapboxgl-ctrl-scale").html().replace("mi",""))
var perMile = barWidth/miles
// console.log([barWidth,miles,perMile])
return perMile
}
function calculateRadius(map){
var width = $("#map").innerWidth()
var height = $("#map").innerHeight()
var latLng1 = map.unproject([0,height])
var latLng2 = map.unproject([width,height])
var distance = getDistances(latLng1.lat,latLng1.lng,latLng2.lat,latLng2.lng)
var pixelsPerMile = width/distance
return pixelsPerMile
}
function makeDictionary(data){
var formatted = {}
for(var i in data){
var gid = data[i]["Geo_GEOID"]
formatted[gid] = data[i]
}
return formatted
}
function mouseDown() {
if (!isCursorOverPoint) return;
isDragging = true;
// Set a cursor indicator
canvas.style.cursor = 'grab';
// Mouse events
map.on('mousemove', onMove);
map.once('mouseup', onUp);
}
function onMove(e) {
if (!isDragging) return;
var coords = e.lngLat;
// Set a UI indicator for dragging.
canvas.style.cursor = 'grabbing';
// Update the Point feature in `geojson` coordinates
// and call setData to the source layer `point` on it.
geojson.features[0].geometry.coordinates = [coords.lng, coords.lat];
map.getSource('point').setData(geojson);
}
function getDistances(lat1,lng1,lat2,lng2){
var unit = "N"
var radlat1 = Math.PI * lat1/180
var radlat2 = Math.PI * lat2/180
var theta = lng1-lng2
var radtheta = Math.PI * theta/180
var dist = Math.sin(radlat1) * Math.sin(radlat2) + Math.cos(radlat1) * Math.cos(radlat2) * Math.cos(radtheta);
dist = Math.acos(dist)
dist = dist * 180/Math.PI
dist = dist * 60 * 1.1515
if (unit=="K") { dist = dist * 1.609344 }
if (unit=="N") { dist = dist * 0.8684 }
return dist
}
function getFeatures(point,radius){
//console.log(point)
var x = point.point.x
var y = point.point.y
var lat = point.lngLat.lat
var lng = point.lngLat.lng
//var canvas = map.get(canvas)
var bbox = [[x - radius, y - radius], [x + radius, y + radius]];
var features = map.queryRenderedFeatures(bbox,{layers:["blockgroups"]});
var gids = {"_1":[], "_2":[],"_5":[]}
if(features.length>0){
for(var f in features){
var gid = features[f].properties.AFFGEOID
var centroidEntry = centroids[gid.replace("1500000US","15000US")]
var centroid = [centroidEntry.lng,centroidEntry.lat]
// console.log(centroid)
var distance = getDistances(lat,lng,centroidEntry.lat,centroidEntry.lng)
// console.log(distance)
if(distance<5){
gids["_5"].push(gid)
}
if(distance<2){
gids["_2"].push(gid)
}
if(distance<1){
gids["_1"].push(gid)
}
}
}
var dataInRange5 = getDataInRadius(gids["_5"])
var dataInRange2 = getDataInRadius(gids["_2"])
var dataInRange1 = getDataInRadius(gids["_1"])
var dataInRanges = {"_5": dataInRange5,"_2": dataInRange2,"_1": dataInRange1}
displayData(dataInRanges)
var filter = ["in","AFFGEOID"].concat(gids["_5"])
map.setFilter("blockgroups-highlight",filter);
}
function displayData(data){
// console.log(data)
d3.selectAll("#data svg").remove()
var text = ""
for(var i in keysDictionary){
var group = keysDictionary[i]
//console.log([i, group])
text+="<strong>"+i+"</strong><br/>"
for(var j in group){
var code = "SE_"+j
var codeText = group[j]
var totalCode = "SE_"+j.split("_")[0]+"_001"
var value1 = data["_1"][code]
var totalValue1 = data["_1"][totalCode]
var percent1 = Math.round(value1/totalValue1*10000)/100
var value2 = data["_2"][code]
var totalValue2 = data["_2"][totalCode]
var percent2 = Math.round(value2/totalValue2*10000)/100
var value5 = data["_5"][code]
var totalValue5 = data["_5"][totalCode]
var percent5 = Math.round(value5/totalValue5*10000)/100
var values = [value1, value2, value5]
var totals = [totalValue1, totalValue2, totalValue5]
var percents = [parseFloat(percent1), parseFloat(percent2), parseFloat(percent5)]
if(code=="SE_T001_001"){
var textEntry = ""+codeText+"<br/>"+"<span style=\"color:#000\">"+value1+"</span>"
+"<span style=\"color:#888\">"+value2+"</span>"
+"<span style=\"color:#aaa\">"+value5+"</span>"+"<br/>"
text+=textEntry
}else if(j.split("_")[1]!= "001" && j!="overview"){
var textEntry = codeText+"<br/>"+"<span style=\"color:#000\">"+percent1+"</span>"
+"<span style=\"color:#888\">"+percent2+"</span>"
+"<span style=\"color:#aaa\">"+percent5+"</span>"+"<br/>"
text+=textEntry
drawChart(values,percents,code,codeText)
}
}
}
//var table = d3.select("#data").html(text)
}
function drawChart(values,percents,code,title){
var height = 110
var margin = 70
var barWidth = 40
var gap = 5
// console.log(percents.sort()[2])
var max = Math.max(percents[0],percents[1],percents[2])
// var max = percents.sort()[2]
var y = d3.scaleLinear().domain([0,max]).range([0,height-margin])
//console.log(Math.max(percents))
var svg = d3.select("#data").append("svg").attr("width",300).attr("height",height)
svg.append("text").text(title).attr("x",0).attr("y",15).style("font-weight","bold").style("font-size","11px")
svg.append("text").text("1").attr("x",(barWidth-gap)/2).attr("y",height-18).style("font-weight","bold").style("fill","#72a553")
.style("text-anchor","middle")
svg.append("text").text("2").attr("x",barWidth+(barWidth-gap)/2).attr("y",height-18).style("font-weight","bold").style("fill","#72a553")
.style("text-anchor","middle")
svg.append("text").text("5").attr("x",barWidth*2+(barWidth-gap)/2).attr("y",height-18).style("font-weight","bold").style("fill","#72a553")
.style("text-anchor","middle")
svg.append("text").text("miles").attr("x",barWidth*3+(barWidth-gap)/2).attr("y",height-18).style("font-weight","bold").style("fill","#72a553")
.style("text-anchor","middle")
svg.selectAll("rect")
.data(percents)
.enter()
.append("rect")
.attr("class",function(d,i){return code+"_"+i})
.style("fill","#000")
.attr("opacity",.3)
.attr("x",function(d,i){return i* barWidth})
.attr("y",function(d,i){return height-margin/2-y(d)})
.attr('width', barWidth-gap)
.attr("height",function(d,i){
return y(d)
})
svg.selectAll(".percentText")
.data(percents)
.enter()
.append("text")
.text(function(d){
if(d<10){
return d+"%"
}else{
return Math.round(d)+"%"}
}
)
.attr("x",function(d,i){return i* barWidth+(barWidth-gap)/2})
.style("text-anchor","middle")
.style("font-size","11px")
.attr("y",function(d,i){return height-margin/2-y(d)-2})
}
function getDataInRadius(gids){
var formatted = {}
for(var k in keys){
var key = keys[k]
if(key!="Geo_GEOID"&& key!="Geo_NAME"){
formatted[key]=0
}
}
for(var i in gids){
var gid = gids[i].replace("1500000US","15000US")
for(var j in keys){
var key = keys[j]
if(key!="Geo_GEOID"&&key!="Geo_NAME"){
var value = parseFloat(censusData[gid][key])
// console.log(censusData[gid][key])
if(isNaN(value)!=true){
formatted[key]+=value
}
}
}
}
return formatted
}
function onUp(e) {
if (!isDragging) return;
var coords = e.lngLat;
// Print the coordinates of where the point had
// finished being dragged to on the map.
coordinates.style.display = 'block';
coordinates.innerHTML = 'Longitude: ' + coords.lng + '<br />Latitude: ' + coords.lat;
canvas.style.cursor = '';
isDragging = false;
// Unbind mouse events
map.off('mousemove', onMove);
var pixelsPerMile = getRadiusFromScale()
getFeatures(e,pixelsPerMile*5)
}
//a