ol-ext/examples/misc/csv2geojson.html
2024-06-26 16:24:06 +02:00

367 lines
9.8 KiB
HTML

<!DOCTYPE html>
<html>
<head>
<title>CSV2GeoJSON</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="description" content="Convert CSV file to GeoJSON." />
<meta name="keywords" content="csv, geojson, online" />
<!-- jQuery -->
<script type="text/javascript" src="https://code.jquery.com/jquery-1.11.0.min.js"></script>
<!-- FontAwesome -->
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css">
<!-- ol3 to show the map -->
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/ol@latest/ol.css" />
<script type="text/javascript" src="https://cdn.jsdelivr.net/npm/ol@latest/dist/ol.js"></script>
<!-- filesaver-js -->
<script type="text/javascript" src="https://cdn.rawgit.com/eligrey/FileSaver.js/aa9f4e0e/FileSaver.min.js"></script>
<!-- Papaparse -->
<script type="text/javascript" src="https://unpkg.com/papaparse@4.6.3/papaparse.min.js"></script>
<!-- ol-ext -->
<link rel="stylesheet" href="../../dist/ol-ext.css" />
<script type="text/javascript" src="../../dist/ol-ext.js"></script>
<!-- Pointer events polyfill for old browsers, see https://caniuse.com/#feat=pointer -->
<script src="https://unpkg.com/elm-pep"></script>
<!-- exif2geojson -->
<link rel="stylesheet" href="../style.css" />
<style>
body {
max-width: 800px;
margin: 0.5em auto;
background: #ddc;
font-family: 'Open Sans Condensed',Arial,Helvetica,Verdana,sans-serif;
color: #775;
}
h1 {
background: #886;
}
h1 .fa {
color: #fff;
font-size:1.8em;
vertical-align: middle;
}
.info {
padding:1em 2em;
background: #fff;
border-radius: 6px;
clear: both;
}
.globe {
text-align:center;
float:left;
font-size: 5em;
width:40%;
line-height: 1em;
}
.globe .fa {
vertical-align: middle;
margin:0 5px;
color:#664;
}
.globe .fa-file-excel-o {
font-size: 0.75em;
}
.globe .fa-arrow-circle-right {
font-size: 0.5em;
}
#dropfile {
font-size:1.2em;
width:55%;
float: right;
border:3px dashed #997;
padding:1em 3.5em;
text-align:center;
box-sizing: border-box;
margin: .5em 3em 1em -3em;
font-weight: bold;
}
#dropfile.hover{
border-color: #664;
background: #e6e6d6;
}
#pbar {
display: none;
width:200px;
border:1px solid #664;
margin: 0.5em;
float:left;
}
#pbar > div {
height: 15px;
width: 0;
background: #664;
}
textarea {
width:100%;
height:15em;
box-sizing:border-box;
white-space: nowrap;
min-width: 100%;
max-width: 100%;
}
.loading {
margin:0 0 1em;
padding:0.5em;
height:1em;
}
label.radio {
display: inline-flex;
}
#lonlat, #geom {
float: left;
margin: .3em 1em 1em 0;
}
#lonlat ~ div,
#geom ~ div {
opacity: .5;
pointer-events: none;
}
#lonlat:checked ~ .lonlat,
#geom:checked ~ .geom {
opacity: 1;
pointer-events: all;
}
.info > button {
float: right;
background: #887;
color: #fff;
border: 0;
margin: 0 2em;
font-size: 1.3em;
font-weight: bold;
padding: 0.25em 1em;
display: none;
cursor: pointer;
}
.info > button i {
color:#fff;
}
#map {
display: none;
float:none;
width: 100%;
height: 400px;
}
.warn {
background: #fe0;
color: #800;
padding: 0 1em;
}
@media (max-height: 450px) {
body {
margin: 0 auto;
}
.globe {
font-size: 3em;
}
#dropfile {
margin: 0 3em 0 -3em;
padding: .5em;
}
.info {
margin: 0;
padding: .3em 2em;
}
.loading {
margin: 0;
padding: .1em .5em;
}
}
</style>
</head>
<body >
<a href="https://github.com/Viglino/ol-ext" class="icss-github-corner"><i></i></a>
<a class="title" href="../../index.html">
<h1><i class="fa fa-globe"></i> CSV2GeoJSON</h1>
</a>
<div class="info">
Convert CSV (Comma Separated Values) file into GeoJSON.
</div>
<div class="globe">
<i class="fa fa-file-excel-o"></i><i class="fa fa-arrow-circle-right"></i><i class="fa fa-globe"></i>
</div>
<div id="dropfile">
Drag & drop CSV file to convert.
</div>
<div class="info">
<div id="pbar"><div></div></div>
<label class="radio">
<input id="lonlat" name="geom" type="radio" checked="checked" />
<div class="lonlat">
<label class='lon'>longitude: <select></select></label>
<br/>
<label class='lat'>latitude: <select></select></label>
</div>
</label>
<br/>
<label class="radio">
<input id="geom" name="geom" type="radio" />
<div class="geom">
<label class='type'>type: <select></select></label>
<br/>
<label class='geometry'>geometry: <select></select></label>
</div>
</label>
<button onclick="download()"><i class="fa fa-download"></i> Download</button>
<div class="loading"></div>
<div id="map"></div>
<textarea id="result"></textarea>
</div>
<script>
var name, result;
function getGeoJSON() {
var json = {
type: 'FeatureCollection',
features: []
};
var point = $("#lonlat").prop("checked");
var lon = $('label.lon select').val();
var lat = $('label.lat select').val();
var type = $('label.type select').val();
var geom = $('label.geometry select').val();
try {
result.data.forEach(function (d) {
var f = {
type: 'Feature',
properties: $.extend({},d)
}
if (point) {
delete f.properties[lon];
delete f.properties[lat];
f.geometry = {
type: 'Point',
coordinates: [ parseFloat(d[lon]), parseFloat(d[lat])]
};
} else {
delete f.properties[type];
delete f.properties[geom];
f.geometry = {
type: d[type],
coordinates: JSON.parse(d[geom])
};
}
json.features.push(f);
});
} catch(e) {}
console.log(json)
var res = JSON.stringify(json, null, ' ');
if (res.length>5000) {
$('textarea').html(res.substr(0,5000)+'\n...');
} else {
$('textarea').html(res);
}
return res;
}
function download() {
var res = getGeoJSON();
var blob = new Blob([res], {type: "text/plain;charset=utf-8"});
saveAs(blob, name+".geojson");
};
$(document).on('dragover dragleave', function (e) {
e.preventDefault();
e.stopPropagation();
if (e.type=='dragover') $("#dropfile").addClass('hover');
else $("#dropfile").removeClass('hover');
return false;
});
function showLonlat() {
if ($('label.lon select').val() && $('label.lat select').val()) {
$('button').show();
getGeoJSON();
}
else $('button').hide();
}
$('#lonlat').on('click', showGeom);
$('label.lon select').on('change', showLonlat);
$('label.lat select').on('change', showLonlat);
function showGeom() {
if ($('label.type select').val() && $('label.geometry select').val()) {
$('button').show();
getGeoJSON();
}
else $('button').hide();
}
$('#geom').on('click', showGeom);
$('label.type select').on('change', showGeom);
$('label.geometry select').on('change', showGeom);
$(document).on('drop', function (e) {
if (e.originalEvent.dataTransfer) {
if (e.originalEvent.dataTransfer.files.length) {
// Stop the propagation of the event
e.preventDefault();
e.stopPropagation();
$("#dropfile").removeClass('hover');
$(".loading").html(" loading...");
// Main function to upload
var file = e.originalEvent.dataTransfer.files[0];
name = file.name.split('.').slice(0, -1).join('.');
Papa.parse(file, {
header: true,
complete: function(results) {
result = results;
$('label.lon select').html('');
$('label.lat select').html('');
$('label.type select').html('');
$('label.geometry select').html('');
results.meta.fields.forEach(function(att, i) {
$('<option>').val(att).text(att).prop('selected',/^long?$|longitude/i.test(att)).appendTo($('label.lon select'));
$('<option>').val(att).text(att).prop('selected',/^lat$|latitude/i.test(att)).appendTo($('label.lat select'));
$('<option>').val(att).text(att).prop('selected',/^type$/i.test(att)).appendTo($('label.type select'));
$('<option>').val(att).text(att).prop('selected',/^geom|^coord/i.test(att)).appendTo($('label.geometry select'));
});
$(".loading").html("");
$('label.lon select').change();
}
});
}
} else {
$(this).css('border', '3px dashed #BBBBBB');
}
return false;
});
// The map
var map = new ol.Map({
target: 'map',
view: new ol.View({
zoom: 1,
center: [270055, 3528229.]
}),
layers: [ new ol.layer.Geoportail({ layer: 'GEOGRAPHICALGRIDSYSTEMS.PLANIGNV2' }) ]
});
var vector = new ol.layer.Vector({
source: new ol.source.Vector(),
style: new ol.style.Style({
image: new ol.style.Circle({
fill: new ol.style.Fill({ color:"rgba(102, 68, 68, 0.6)" }),
radius: 5
})})
});
map.addLayer(vector);
</script>
</body>
</html>