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<html>
<head>
<title>osm tag history</title>
<script src="bower_components/d3/d3.min.js"></script>
<script src="bower_components/vega/vega.js"></script>
<script src="bower_components/es6-promise/es6-promise.auto.min.js"></script>
<script src="bower_components/fetch/fetch.js"></script>
</head>
<body>
<h1>OSM Tag History</h1>
<p><a href="http://www.openstreetmap.org/user/tyr_asd/diary/39402">Read more background information</a> about this tool. Displays data from taghistory's own <a href="https://github.com/tyrasd/taghistory#api">API</a> as well as <a href="https://taginfo.openstreetmap.org/taginfo/apidoc">taginfo's chronology and stats API</a>.</p>
<form id="form">
<select id="type">
<option value="***" selected>any type</option>
<option value="node">nodes only</option>
<option value="way">ways only</option>
<option value="relation">relations only</option>
</select>
<input type="text" id="key" placeholder="key" maxlength="255" size="30" />
<input type="text" id="value" placeholder="value (leave empty for any value)" maxlength="255" size="30" />
<input type="submit" value="add tag" />
</form>
<div id="chart" class="view"></div>
<script>
var today = +(new Date());
var dataUpdateTags = +(new Date("2023-05-07T23:59:59Z"));
var dataUpdateTagKeys = +(new Date("2023-05-07T23:59:59Z"));
var osmBirth = +(new Date("2007-10-07T00:00:00Z"));
var permalinkTagSeparator = "&";
var permalinkRequestSeparator = "/";
var spec = {
"width": 1000,
"height": 600,
"padding": {"top": 10, "left": 10, "bottom": 30, "right": 70},
"data": [
{
"name": "tags",
"values": [],
"transform": [{"type": "facet", "groupby": ["tag"]}]
},
{
"name": "taginfo_chronology",
"values": [],
"transform": [{"type": "facet", "groupby": ["tag"]}]
},
{
"name": "taginfo_stats",
"values": [],
"transform": [{"type": "facet", "groupby": ["tag"]}]
}
],
"signals": [
{
"name": "reset",
"verbose": true,
"streams": [{
"type": "@reset:click",
"expr": "random()"
}]
},
{
"name": "resetable",
"init": 0,
"verbose": true,
"streams": [
{"type": "reset", "expr": 0},
{"type": "brush_end, delta, zoom", "expr": 1}
]
},
{
"name": "shift",
"init": false,
"verbose": true,
"streams": [
{"type": "window:keydown, window:keyup", "expr": "event.shiftKey"}
]
},
{
"name": "brush_start",
"init": {},
"streams": [{
"type": "mousedown[shift]",
"expr": "{x: iscale('x', clamp(eventX(), 0, width)), y: iscale('y', clamp(eventY(), 0, height))}"
}]
},
{
"name": "brush",
"init": {},
"streams": [{
"type": "mousedown[shift], [mousedown[shift], window:mouseup] > window:mousemove",
"expr": "{x: iscale('x', clamp(eventX(), 0, width)), y: iscale('y', clamp(eventY(), 0, height))}"
}]
},
{
"name": "brush_end",
"init": 0,
"streams": [{
"type": "[mousedown[shift], mousedown[!shift]] > window:mouseup",
"expr": "random()"
}]
},
{
"name": "brush1",
"init": {},
"streams": [
{"type": "brush_start", "expr": "brush_start"},
{"type": "brush_end", "expr": "{x: 0, y: 0}"}
]
},
{
"name": "brush2",
"init": {},
"streams": [
{"type": "brush", "expr": "brush"},
{"type": "brush_end", "expr": "{x: 0, y: 0}"}
]
},
{
"name": "delta_start",
"init": 0,
"streams": [{
"type": "mousedown[!shift]",
"expr": "{x: eventX(), y: eventY()}"
}]
},
{
"name": "delta",
"init": 0,
"streams": [{
"type": "[mousedown[!shift], window:mouseup] > window:mousemove",
"expr": "{x: delta_start.x - eventX(), y: eventY() - delta_start.y}"
}]
},
{
"name": "xAnchor",
"init": 0,
"streams": [{
"type": "mousemove",
"expr": "+datetime(iscale('x', clamp(eventX(), 0, width)))"
}]
},
{
"name": "yAnchor",
"init": 0,
"streams": [{
"type": "mousemove",
"expr": "eventY()",
"scale": {"name":"y", "invert":true}
}]
},
{
"name": "zoom",
"init": 1.0,
"verbose": true,
"streams": [
{"type": "wheel", "expr": "pow(1.01, event.deltaY*pow(16, event.deltaMode))"}
]
},
{
"name": "xs",
"streams": [{
"type": "mousedown, mouseup, wheel",
"expr": "{min: xMin, max: xMax}"}
]
},
{
"name": "ys",
"streams": [{
"type": "mousedown, mouseup, wheel",
"expr": "{min: yMin, max: yMax}"
}]
},
{
"name": "globalMaxY",
"init": 10,
"verbose": true,
"streams": []
},
{
"name": "xMin",
"init": osmBirth,
"streams": [
{"type": "delta", "expr": "max(xs.min + (xs.max-xs.min)*delta.x/width, "+osmBirth+")"},
{"type": "zoom", "expr": "max((xs.min-xAnchor)*zoom + xAnchor, "+osmBirth+")"},
{"type": "brush_end", "expr": "min(brush_start.x, brush.x)"},
{"type": "reset", "expr": osmBirth}
]
},
{
"name": "xMax",
"init": today,
"streams": [
{"type": "delta", "expr": "min(xs.max + (xs.max-xs.min)*delta.x/width, "+today+")"},
{"type": "zoom", "expr": "min((xs.max-xAnchor)*zoom + xAnchor, "+today+")"},
{"type": "brush_end", "expr": "max(brush_start.x, brush.x)"},
{"type": "reset", "expr": today}
]
},
{
"name": "yMin",
"init": 0,
"streams": [
{"type": "delta", "expr": "max(0, ys.min + (ys.max-ys.min)*delta.y/height)"},
{"type": "zoom", "expr": "max(0, (ys.min-yAnchor)*zoom + yAnchor)"},
{"type": "brush_end", "expr": "min(brush_start.y, brush.y)"},
{"type": "reset", "expr": 0}
]
},
{
"name": "yMax",
"init": 10, // ???
"streams": [
{"type": "delta", "expr": "ys.max + (ys.max-ys.min)*delta.y/height"},
{"type": "zoom", "expr": "(ys.max-yAnchor)*zoom + yAnchor"},
{"type": "brush_end", "expr": "max(brush_start.y, brush.y)"},
{"type": "reset", "expr": "globalMaxY"}
]
}
],
"scales": [
{
"name": "x",
"type": "utc",
"range": "width",
"zero": false,
"domainMin": {"signal": "xMin"},
"domainMax": {"signal": "xMax"}
},
{
"name": "y",
"type": "linear",
//"type": "log",
"range": "height",
"nice": !true,
"zero": false,
//"domain": {"data": "tags", "field": "count"}
"domainMin": {"signal": "yMin"},
"domainMax": {"signal": "yMax"}
},
{
"name": "color",
"type": "ordinal",
"domain": {"data": "tags", "field": "tag"},
"range": "category10"
}
],
"axes": [
{
"type": "x",
"scale": "x",
"grid": true,
"ticks": 12,
properties: {
"labels": {
"align": { "value": "left" },
"dx": { "value": 3 }
}
}
},
{
"type": "y",
"scale": "y",
"grid": true,
"orient": "right"
}
],
"marks": [
{
"type": "group",
"properties": {
"enter": {
"x": {"value": 0},
"width": {"field": {"group": "width"}},
"y": {"value": 0},
"height": {"field": {"group": "height"}},
"clip": {"value": true}
}
},
"from": {
"data": "tags"
},
"marks": [
{
"type": "line",
"properties": {
"enter": {
"interpolate": {"value": "step-after"},
"strokeWidth": 12
},
"update": {
"x": {"scale": "x", "field": "date"},
"y": {"scale": "y", "field": "count"},
"stroke": {"scale": "color", "field": "tag"}
}
}
}
]
},
{
"type": "group",
"properties": {
"enter": {
"x": {"value": 0},
"width": {"field": {"group": "width"}},
"y": {"value": 0},
"height": {"field": {"group": "height"}},
"clip": {"value": true}
}
},
"from": {
"data": "taginfo_chronology"
},
"marks": [
{
"type": "line",
"properties": {
"enter": {
"interpolate": {"value": "step-after"},
"strokeWidth": 12
},
"update": {
"x": {"scale": "x", "field": "date"},
"y": {"scale": "y", "field": "count"},
"stroke": {"scale": "color", "field": "tag"}
}
}
}
]
},
{
"type": "group",
"properties": {
"enter": {
"x": {"value": 0},
"width": {"field": {"group": "width"}},
"y": {"value": 0},
"height": {"field": {"group": "height"}},
"clip": {"value": true}
}
},
"from": {
"data": "taginfo_stats"
},
"marks": [
{
"type": "line",
"properties": {
"enter": {
"interpolate": {"value": "linear"},
"strokeWidth": 12
},
"update": {
"x": {"scale": "x", "field": "date"},
"y": {"scale": "y", "field": "count"},
"stroke": {"scale": "color", "field": "tag"},
"strokeDash": {"value": [4,4]}
}
}
}
]
},
{
"type": "rect",
"properties": {
"enter": {
"fill": {"value": "grey"},
"fillOpacity": {"value": 0.05},
"stroke": {"value": "grey"},
"strokeOpacity": {"value": 0.6},
"strokeDash": {"value": [4,6]},
},
"update": {
"x": {"scale": "x", "signal": "brush1.x"},
"x2": {"scale": "x", "signal": "brush2.x"},
"y": {"scale": "y", "signal": "brush1.y"},
"y2": {"scale": "y", "signal": "brush2.y"}
}
}
},
{
"type": "text",
"name": "reset",
"properties": {
"update": {
"text": {"value": "(reset zoom)"},
"x": {"value": 30},
"y": {"value": 16},
"fill": {"value": "grey"},
"fillOpacity": {"signal": "resetable"},
"fontSize": {"value": 14}
}
}
},
],
"legends": [
{
"fill": "color",
"properties": {
"legend": {
"x": {"value": 16},
"y": {"value": 30}
},
"labels": {
"fontSize": {"value": 14}
},
"symbols": {
"stroke": {"value": "transparent"}
}
}
}
]
};
var view;
function getTaghistoryAPILink(type, key, value, format) {
var keyPart = encodeURIComponent(key.replace(/\//g, '|||')) || '||@||';
var link = "https://taghistory.raifer.tech/"+encodeURIComponent(type)+"/"+keyPart+"/"+encodeURIComponent(value.replace(/\//g, '|||'));
if (format !== undefined) {
link += '?format='+format;
}
return link;
}
function getTaginfoStatsAPILink(key, value) {
var link;
if (value)
link = "https://taginfo.openstreetmap.org/api/4/tag/stats?key="+encodeURIComponent(key)+"&value="+encodeURIComponent(value);
else
link = "https://taginfo.openstreetmap.org/api/4/key/stats?key="+encodeURIComponent(key);
return link;
}
function getTaginfoChronologyAPILink(key, value) {
var link;
if (value)
link = "https://taginfo.openstreetmap.org/api/4/tag/chronology?key="+encodeURIComponent(key)+"&value="+encodeURIComponent(value);
else
link = "https://taginfo.openstreetmap.org/api/4/key/chronology?key="+encodeURIComponent(key);
return link;
}
function addToPlot(type, key, value, doneCallback) {
var tagDescription = (type === '***' ? '' : type + ' ') + key + (value ? '=' + value : '');
fetch(getTaghistoryAPILink(type, key, value))
.then(function(d) { return d.json(); })
.then(function(d) {
var permalinkPart = type + permalinkRequestSeparator + encodeURIComponent(key) + permalinkRequestSeparator + encodeURIComponent(value);
d.forEach(function(r) {
r.tag = tagDescription;
r.date = +(new Date(r.date));
});
d.unshift({
tag: tagDescription,
permalinkPart: permalinkPart,
date: osmBirth,
delta: 0,
count: 0
});
var lastCount = d[d.length-1].count;
var lastDay = d[d.length-1].date;
d.push({
tag: tagDescription,
date: value ? dataUpdateTags : dataUpdateTagKeys,
delta: 0,
count: lastCount
});
view.data('tags').insert(d);
var newMax = d.reduce(function(acc, r) { return Math.max(acc,r.count); }, 0);
view.signal('globalMaxY', Math.max(newMax*1.05, view.signal('globalMaxY')));
// trigger chart reset if it hasn't been zoomed yet
if (view.signal('resetable') == 0) view.signal('reset', Math.random());
view.update();
// update permalink
var permalinkHash = view.data().tags.map(function(d) {
return d.values[0].permalinkPart;
}).join(permalinkTagSeparator);
var permalinkElement = document.getElementById('permalink');
permalinkElement.href = permalinkElement.href.substring(0, permalinkElement.href.indexOf('#')) + '#' + permalinkHash;
window.history.replaceState(null, "", permalinkElement.href);
// trigger doneCallback
if (doneCallback !== undefined) {
doneCallback.call();
}
var taginfoDataUntil;
var taginfoHasChronology = true;
fetch(getTaginfoChronologyAPILink(key, value))
.then(function(d) { return d.json(); })
.then(function(d) {
taginfoDataUntil = +(new Date(d.data_until));
if (d.total === 0) {
taginfoHasChronology = false;
fetch(getTaginfoStatsAPILink(key, value))
.then(function(d) { return d.json(); })
.then(function(d) { return d.data.filter(function(e) {
return e.type === (type === '***' ? 'all' : type + 's');
})[0].count; })
.then(function(taginfoCount) {
var d = [{
tag: tagDescription,
date: value ? dataUpdateTags : dataUpdateTagKeys,
count: lastCount
}, {
tag: tagDescription,
date: taginfoDataUntil,
count: taginfoCount
}];
view.data('taginfo_stats').insert(d);
view.signal('globalMaxY', Math.max(taginfoCount*1.05, view.signal('globalMaxY')));
// trigger chart reset if it hasn't been zoomed yet
if (view.signal('resetable') == 0) view.signal('reset', Math.random());
view.update();
});
}
return d;
})
.then(function(d) { return d.data.map(function(e) {
if (type !== '***')
return {
tag: tagDescription,
date: +(new Date(e.date + "T00:00:00.000Z")),
delta: e[type + 's']
};
else
return {
tag: tagDescription,
date: +(new Date(e.date + "T00:00:00.000Z")),
delta: e.nodes + e.ways + e.relations
};
}); })
.then(function(d) {
var count = 0;
d.forEach(function(e) {
count += e.delta;
e.count = count;
});
return d;
})
.then(function(d) { return d.filter(function(e) {
return e.date > lastDay;
}); })
.then(function(taginfoChronology) {
if (!taginfoHasChronology) return;
taginfoChronology.unshift({
tag: tagDescription,
date: lastDay,
delta: 0,
count: lastCount
});
taginfoChronology.push({
tag: tagDescription,
date: taginfoDataUntil,
delta: 0,
count: taginfoChronology[taginfoChronology.length-1].count
});
view.data('taginfo_chronology').insert(taginfoChronology);
var newMax = taginfoChronology.reduce(function(acc, r) { return Math.max(acc,r.count); }, 0);
view.signal('globalMaxY', Math.max(newMax*1.05, view.signal('globalMaxY')));
// trigger chart reset if it hasn't been zoomed yet
if (view.signal('resetable') == 0) view.signal('reset', Math.random());
view.update();
})
.catch(function(error) { console.error(error); });
})
.catch(function(error) { console.error(error); });
}
function exportImage(format) {
var resetableValue = view.signal('resetable');
if (resetableValue != 0) {
view.signal('resetable', 0);
view.update();
}
var imageResult = view.toImageURL(format);
if (resetableValue != 0) {
view.signal('resetable', resetableValue);
view.update();
}
return imageResult;
}
function loadFromHash(hash) {
if (hash == "") {
return;
}
var tagsFromHash = hash.split(permalinkTagSeparator);
var tkv = tagsFromHash.shift().split(permalinkRequestSeparator);
// treat empty type as "***"
var type = tkv[0] == "" ? "***" : tkv[0];
// key must be given and is used as-is
var key = decodeURIComponent(tkv[1]);
// treat missing value as no value
var value = tkv.length == 3 ? decodeURIComponent(tkv[2]) : "";
addToPlot(type, key, value, function() {
// recursively call addToPlot for further tags, if any
loadFromHash(tagsFromHash.join(permalinkTagSeparator));
});
}
function loadGraphs() {
vg.parse.spec(spec, function(chart) {
view = chart({el:"#chart", renderer: 'svg', data:[]});
view.update();
loadFromHash(document.location.hash.substring(1));
document.getElementById('form').addEventListener('submit', function(e) {
e.preventDefault();
var type = document.getElementById('type').value;
var key = document.getElementById('key').value;
var value = document.getElementById('value').value;
addToPlot(type, key, value);
});
});
}
document.addEventListener("DOMContentLoaded", loadGraphs);
window.addEventListener("hashchange", loadGraphs);
</script>
<p>
download graph as
<a href="#" download="taghistory.svg" onmousedown="this.href=exportImage('svg')">svg</a> /
<a href="#" download="taghistory.png" onmousedown="this.href=exportImage('png')">png</a>
</p>
<p>
<a href="#" id="permalink">permalink</a>
</p>
<p>
Data © <a href="https://www.openstreetmap.org/copyright">OpenStreetMap contributors</a> (<a href="http://opendatacommons.org/licenses/odbl/1.0/">ODbL</a>).
</p>