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maplogic.js
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maplogic.js
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function initialise() {
//Team Search filter
if (document.URL.indexOf('teamsearch') > -1) {
var teamname = findGetParameter('teamsearch');
if (teamname != '') {
teamname = teamname.replace(/[+]/g, ' ');
myData = myData.filter(function(el) {
return el.team == teamname;
});
document.getElementById('searchterm').value = teamname;
}
}
//Premier League only switch filter
if (document.URL.indexOf('premierleague') > -1) {
var bigleague = findGetParameter('premierleague');
if (bigleague == 'Yes') {
myData = myData.filter(function(el) {
return el.league == 'Premier League';
});
}
}
//National Teams only switch filter
if (document.URL.indexOf('nationalteams') > -1) {
var bigleague = findGetParameter('nationalteams');
if (bigleague == 'Yes') {
myData = myData.filter(function(el) {
return el.league == 'National';
});
}
}
//Capacity filter
if (document.URL.indexOf('lowerbounds') > -1) {
var lowerbounds = findGetParameter('lowerbounds');
var upperbounds = findGetParameter('upperbounds');
myData = myData.filter(function(el) {
return el.capacity >= lowerbounds && el.capacity <= upperbounds;
});
document.getElementById('lowerbounds').value = lowerbounds;
document.getElementById('upperbounds').value = upperbounds;
}
function findGetParameter(parameterName) {
var result = null,
tmp = [];
location.search.substr(1).split('&').forEach(function(item) {
tmp = item.split('=');
if (tmp[0] === parameterName) result = decodeURIComponent(tmp[1]);
});
return result;
}
// create the Leaflet map object and enable fractional zoom to adjust map size granularly.
var myMap = new L.Map('mapid', {
zoomSnap: 0.1
});
// create the labeled tile layer with correct attribution
var osmUrl = 'http://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png';
var osmAttrib = 'Map data © <a href="http://openstreetmap.org">OpenStreetMap</a> contributors';
var osm = new L.TileLayer(osmUrl, {
minZoom: 0.5,
maxZoom: 20,
attribution: osmAttrib
});
// create the grayscale tile layer with correct attribution
var grayUrl =
'http://server.arcgisonline.com/ArcGIS/rest/services/Canvas/World_Light_Gray_Base/MapServer/tile/{z}/{y}/{x}';
var grayAttrib = 'Tiles © Esri — Esri, DeLorme, NAVTEQ';
var gray = new L.TileLayer(grayUrl, {
minZoom: 0.5,
maxZoom: 20,
attribution: grayAttrib
});
// create the NASA Earth at Night tile layer with correct attribution
var NASAGIBS_ViirsEarthAtNight2012 = L.tileLayer(
'http://map1.vis.earthdata.nasa.gov/wmts-webmerc/VIIRS_CityLights_2012/default/{time}/{tilematrixset}{maxZoom}/{z}/{y}/{x}.{format}',
{
attribution:
'Imagery provided by services from the Global Imagery Browse Services (GIBS), operated by the NASA/GSFC/Earth Science Data and Information System (<a href="https://earthdata.nasa.gov">ESDIS</a>) with funding provided by NASA/HQ.',
bounds: [[-85.0511287776, -179.999999975], [85.0511287776, 179.999999975]],
minZoom: 1,
maxZoom: 8,
format: 'jpg',
time: '',
tilematrixset: 'GoogleMapsCompatible_Level'
}
);
// set the starting location and zoom of the map
myMap.setView(new L.LatLng(53.6642, -4.8), 6.2);
//add different tilelayers to map.
var baseMaps = {
Minimalist: gray,
Default: osm,
'Earth at Night': NASAGIBS_ViirsEarthAtNight2012
};
//add tilelayers selection box to map
myMap.addLayer(osm);
//information box overlaid on map to show number of stadiums
var info = L.control();
info.onAdd = function(myMmap) {
this._div = L.DomUtil.create('div', 'info'); // create a div with a class "info"
this.update();
return this._div;
};
info.update = function() {
if (myData.length > 0) {
this._div.innerHTML = '<h4>Number of Stadiums</h4>' + '<b>' + myData.length + '</b>';
} else {
this._div.innerHTML = '<h4>Number of Stadiums</h4>' + '<b>No Stadiums Found</b>';
}
};
info.addTo(myMap);
L.control.layers(baseMaps).addTo(myMap);
//custom icon
var stadiumIcon = L.icon({
iconUrl: 'Images/stadium.png'
});
// the myData array has been imported in a separate <script> include.
if (myData) {
//set up counters for different leagues (used for Chart visualization)
var premierleaguecount = 0;
var scottishpremiershipcount = 0;
var eflchampionshipcount = 0;
var eflleagueonecount = 0;
var eflleaguetwocount = 0;
var nationalteamcount = 0;
var othercount = 0;
//here we iterate through the array
for (var item in myData) {
var lat = myData[item].latitude; //marker latitude
var lon = myData[item].longitude; //marker longitude
var team = myData[item].team; //stadium team affilication
var logo = myData[item].logo; //team logo
var league = myData[item].league; //team's league
//switch statement to add to league counters based on value of item's team.
switch (league) {
case 'Premier League':
premierleaguecount++;
break;
case 'Scottish Premiership':
scottishpremiershipcount++;
break;
case 'EFL Championship':
eflchampionshipcount++;
break;
case 'EFL League One':
eflleagueonecount++;
break;
case 'EFL League Two':
eflleaguetwocount++;
break;
case 'National':
nationalteamcount++;
break;
default:
othercount++;
}
//marker pop-up content with team logo included.
var popup_content =
" <div class='w3-container w3-cell'><img src='" +
logo +
"' alt='Team Logo' align='bottom' style='width:80px;height:80px;'></div><div class='w3-container w3-cell'><b>Stadium Name:</b> " +
myData[item].stadium_name +
'<br><b>Team Name:</b><br> ' +
team +
'<br><b>Capacity:</b> ' +
myData[item].capacity +
'</div>';
//create and add markers and popups to map.
var marker = L.marker([lat, lon], {
icon: stadiumIcon
}).addTo(myMap);
marker.bindPopup(popup_content);
}
//Code for Chart.JS League Breakdown doughnut chart
var ctx = document.getElementById('myChart').getContext('2d');
ctx.canvas.width = 400;
ctx.canvas.height = 200;
var myChart = new Chart(ctx, {
type: 'doughnut',
data: {
labels: [
'Premier League',
'Scottish Premiership',
'EFL Championship',
'EFL League One',
'EFL League Two',
'National Team',
'Other'
],
datasets: [
{
backgroundColor: ['#2ecc71', '#3498db', '#95a5a6', '#9b59b6', '#f1c40f', '#e74c3c', '#34495e'],
data: [
premierleaguecount,
scottishpremiershipcount,
eflchampionshipcount,
eflleagueonecount,
eflleaguetwocount,
nationalteamcount,
othercount
]
}
]
},
options: {
responsive: false,
legend: {
display: true,
position: 'right',
labels: {
boxWidth: 20
}
}
}
});
}
//Code for Modal (used to display sources)
var modal = document.getElementById('myModal');
// Get the button that opens the modal
var btn = document.getElementById('myBtn');
// Get the <span> element that closes the modal
var span = document.getElementsByClassName('close')[0];
// When the user clicks the button, open the modal
btn.onclick = function() {
modal.style.display = 'block';
};
// When the user clicks on <span> (x), close the modal
span.onclick = function() {
modal.style.display = 'none';
};
// When the user clicks anywhere outside of the modal, close it
window.onclick = function(event) {
if (event.target == modal) {
modal.style.display = 'none';
}
};
//Autocomplete functionality through jQuery for Team Search
$(document).ready(function() {
var availableTags = [];
//iterate through allData array which has ALL values from the stadiums table - so search box will always have all stadiums available in autocomplete.
for (var item in allData) {
var team_name = allData[item].team;
availableTags.push(team_name);
}
$('#searchterm').autocomplete({
source: availableTags
});
});
//jQuery slider for stadium capacity
$(function() {
$('#flat-slider').slider({
range: true,
min: 0,
max: 90000,
//lowerbounds and upperbounds are set to the value they are given or to default minimum and maximum values.
values: [$('#lowerbounds').val() || 2000, $('#upperbounds').val() || 90000],
slide: function(event, ui) {
$('#amount').val(ui.values[0] + ' - ' + ui.values[1]);
// when the slider values change, update the hidden fields
$('#lowerbounds').val(ui.values[0]);
$('#upperbounds').val(ui.values[1]);
}
});
$('#amount').val($('#flat-slider').slider('values', 0) + ' - ' + $('#flat-slider').slider('values', 1));
});
//Pan in to London and back out functionality
var stateChangingButton = L.easyButton({
states: [
{
stateName: 'zoom-to-london',
icon: 'fa-star',
title: 'zoom to london',
onClick: function(btn, map) {
myMap.flyTo([51.39404, -0.23447], 10.100000001);
btn.state('zoom-to-original'); // change state on click
}
},
{
stateName: 'zoom-to-original',
icon: 'fa-undo',
title: 'zoom to original state',
onClick: function(btn, map) {
map.flyTo([53.6642, -4.8], 6.2);
btn.state('zoom-to-london');
}
}
]
});
//add button to map(shown below zoom in and out buttons)
stateChangingButton.addTo(myMap);
}