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demo.html
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demo.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>Tile Filters Demo</title>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta name="description" content="Leaflet Tile Filter Demo">
<meta name="author" content="Scott Fairgrieve, HumanGeo">
<link rel="stylesheet" href="bower_components/leaflet/dist/leaflet.css" type="text/css" media="screen" />
<style>
body {
padding: 0px;
margin: 0px;
font-family: Verdana, Tahoma, Arial, Sans Serif;
font-size: 14px;
}
*, *:before, *:after {
-moz-box-sizing: border-box;
-webkit-box-sizing: border-box;
box-sizing: border-box;
}
h5 {
padding: 10px 0px 10px 10px;
margin: 0px;
border-bottom: solid 1px #c0c0c0;
background-color: #e0e0e0;
}
#options {
position: absolute;
bottom: 0px;
right: 0px;
background-color: rgba(255, 255, 255, 0.7);
border: solid 1px #c0c0c0;
}
#layers {
width: 158px;
height: 276px;
overflow: auto;
}
#filters div {
display: block;
margin: 10px;
padding: 10px 10px 10px 10px;
border-radius: 10px;
background-color: #e0e0e0;
}
div.wrapper {
display: inline-block;
margin: 10px 0px 0px 10px;
}
div.wrapper.selected {
}
div.layer {
width: 128px;
height: 128px;
background-size: cover;
position: relative;
}
div.layer .details {
background-color: rgba(255, 255, 255, 0.7);
position: absolute;
bottom: 0px;
width: 100%;
padding: 10px;
}
div.wrapper.selected div.layer .details {
background-color: rgba(40, 40, 240, 0.9);
color: #fff;
}
#map {
background: url(http://subtlepatterns.com/patterns/swirl_pattern.png);
}
</style>
</head>
<body>
<div id="map"></div>
<div id="options">
<h5>Layers</h5>
<div id="layers"></div>
<h5>Filters</h5>
<div id="filters">
<div>
<h5>Canvas Filter</h5>
<select id="canvas-filters"></select>
</div>
<div>
<h5>CSS Filter</h5>
<select id="css-filters"></select>
</div>
</div>
</div>
<script type="text/template" id="layer-template">
<div class="layer" style="background-image: url(<%= thumbnail %>);">
<div class="details">
<span class="provider"><%= provider %></span>
<span class="style"><%= style %></span>
</div>
</div>
</script>
<script>
(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
})(window,document,'script','//www.google-analytics.com/analytics.js','ga');
ga('create', 'UA-51577600-1', 'humangeo.github.io');
ga('send', 'pageview');
</script>
<script type="text/javascript" src="bower_components/jquery/dist/jquery.min.js"></script>
<script type="text/javascript" src="bower_components/underscore/underscore-min.js"></script>
<script type="text/javascript" src="bower_components/leaflet/dist/leaflet.js"></script>
<script type="text/javascript" src="src/leaflet-tilefilter.js"></script>
<script type="text/javascript">
$(document).ready(function() {
var map;
var legendControl;
var classFunc = L.TileLayer.CanvasTMS;
// Function for resizing the map to fill the available space on the screen
var resize = function () {
var $map = $('#map');
$map.height($(window).height());
if (map) {
map.invalidateSize();
}
};
// Resize the map element on window resize
$(window).on('resize', function () {
resize();
});
// Resize the map element
resize();
// Initialize the map
map = L.map('map').setView([38.895843, -77.043085], 15);
var apiKey = 'pk.eyJ1Ijoic2ZhaXJncmlldmUiLCJhIjoiY2FmNGI2OGEwZDI1YTcyMjJkNzQyY2MyMmI0NTRhMzAifQ.b03Wm6qBoeErDTg77XuvzQ';
// Build menu choices
// Stamen, MapQuest, OSM
var layerChoices = {
Stamen: {
Toner: {
thumbnail: 'http://a.tile.stamen.com/toner/12/655/1583.png',
getLayer: function (classFunction) {
return new classFunction('http://{s}.tile.stamen.com/toner/{z}/{x}/{y}.png', {
detectRetina: true
});
}
},
Terrain: {
thumbnail: 'http://tile.stamen.com/terrain/12/655/1583.jpg',
getLayer: function (classFunction) {
return new classFunction('http://{s}.tile.stamen.com/terrain/{z}/{x}/{y}.jpg', {
detectRetina: true
});
}
},
Watercolor: {
thumbnail: 'http://tile.stamen.com/watercolor/12/655/1583.jpg',
getLayer: function (classFunction) {
return new classFunction('http://{s}.tile.stamen.com/watercolor/{z}/{x}/{y}.jpg', {
detectRetina: true
});
}
}
},
MapQuest: {
OSM: {
thumbnail: 'http://otile1.mqcdn.com/tiles/1.0.0/map/12/655/1583.jpg',
getLayer: function (classFunction) {
return new classFunction('http://otile1.mqcdn.com/tiles/1.0.0/map/{z}/{x}/{y}.jpg', {
detectRetina: true
});
},
selected: true
},
Aerial: {
thumbnail: 'http://otile1.mqcdn.com/tiles/1.0.0/sat/12/655/1583.jpg',
getLayer: function (classFunction) {
return new classFunction('http://otile1.mqcdn.com/tiles/1.0.0/sat/{z}/{x}/{y}.jpg', {
detectRetina: true
});
}
}
},
OSM: {
Default: {
thumbnail: 'http://a.tile.openstreetmap.org/12/655/1583.png',
getLayer: function (classFunction) {
return new classFunction('http://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png', {
detectRetina: true
});
}
}
},
CartoDB: {
Positron: {
thumbnail: 'http://a.basemaps.cartocdn.com/light_all/12/655/1583.png',
getLayer: function (classFunction) {
return new classFunction('http://{s}.basemaps.cartocdn.com/light_all/{z}/{x}/{y}.png',{
attribution: '© <a href="http://www.openstreetmap.org/copyright">OpenStreetMap</a> contributors, © <a href="http://cartodb.com/attributions">CartoDB</a>',
detectRetina: true
});
}
},
'Dark Matter': {
thumbnail: 'http://a.basemaps.cartocdn.com/dark_all/12/655/1583.png',
getLayer: function (classFunction) {
return new classFunction('http://{s}.basemaps.cartocdn.com/dark_all/{z}/{x}/{y}.png',{
attribution: '© <a href="http://www.openstreetmap.org/copyright">OpenStreetMap</a> contributors, © <a href="http://cartodb.com/attributions">CartoDB</a>',
detectRetina: true
});
}
}
}
};
var styles = ['streets', 'light', 'dark', 'satellite', 'streets-satellite', 'wheatpaste', 'streets-basic', 'comic', 'outdoors', 'run-bike-hike', 'pencil', 'pirates', 'emerald', 'high-contrast'];
var createFunc = function (styleName) {
return function (classFunction) {
return new classFunction('https://{s}.tiles.mapbox.com/v4/mapbox.' + styleName + '/{z}/{x}/{y}.png?access_token=' + apiKey, {
attribution: '<a href="http://www.mapbox.com/about/maps/" target="_blank">Terms & Feedback</a>',
detectRetina: true
});
}
};
// Store the currently selected filters
var selectedCSSFilter = L.ImageFilters.Presets.CSS.None;
var selectedChannelFilter = L.ImageFilters.Presets.CanvasChannel.None;
var selectedFilter = function () {
return new L.CombinedFilter(this, {
cssFilter: selectedCSSFilter,
canvasFilter: selectedChannelFilter
}).render();
};
var $layers = $('#layers');
var $template = $('#layer-template');
var template = _.template($template.html());
var baseLayer = layerChoices.MapQuest.OSM.getLayer(classFunc);
var getFilter = function () {
selectedFilter = function (image, ctx) {
return new L.CombinedFilter({
cssFilter: selectedCSSFilter,
canvasFilter: selectedChannelFilter
}).render(this, image, ctx);
};
baseLayer.setFilter(selectedFilter);
};
getFilter();
// Iterate through the layer choices and create a way for users to select a tile provider
for (var provider in layerChoices) {
var layerChoice = layerChoices[provider];
for (var style in layerChoice) {
var option = layerChoice[style];
var $layer = $('<div class="wrapper"></div>');
$layer.html(template({
thumbnail: option.thumbnail,
provider: provider,
style: style
}));
if (option.selected) {
$layer.addClass('selected');
}
$layers.append($layer);
var clickFunction = function (option) {
return function () {
var tempLayer = baseLayer;
baseLayer = option.getLayer(classFunc);
/*
if (selectedFilter) {
baseLayer.setFilter(selectedFilter);
}
*/
getFilter();
map.addLayer(baseLayer);
map.removeLayer(tempLayer);
$layers.find('.selected').removeClass('selected');
$(this).addClass('selected');
}
};
$layer.on('click', clickFunction(option));
}
}
// Setup filter options
var $canvasFilters = $('#canvas-filters');
var $cssFilters = $('#css-filters');
for (var filterChoice in L.ImageFilters.Presets.CanvasChannel) {
$canvasFilters.append('<option value="' + filterChoice + '">' + filterChoice + '</option>');
}
for (var filterChoice in L.ImageFilters.Presets.CSS) {
$cssFilters.append('<option value="' + filterChoice + '">' + filterChoice + '</option>');
}
$canvasFilters.on('change', function (e) {
selectedChannelFilter = L.ImageFilters.Presets.CanvasChannel[$canvasFilters.val()];
getFilter();
});
$cssFilters.on('change', function (e) {
selectedCSSFilter = L.ImageFilters.Presets.CSS[$cssFilters.val()];
getFilter();
});
baseLayer.addTo(map);
});
</script>
</body>
</html>