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critter-world-map.js
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critter-world-map.js
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/**
* Copyright (c) 2013, Crittercism, Inc
* All rights reserved.
*
* Please see included LICENSE.txt
*
* Note that this file lives in the critter-world-map github repo. If found
* elsewhere, it is a copy and you should make sure changes will go back
* there, which will help us if we want to use this map in blog posts, marketing
* material or open source it.
*/
function worldmap() {
var width = 960,
height = 640,
svg,map,key,
zoomDisabled = false,
zoomDataLoader = null,
zoomDataPreloader = null,
keyTitle = '',
toolTipTitle = '',
toolTipColor = '#999',
onZoom = null,
topojsonPrefix = '',
dataset=0,
lastTouchEnd = false,
firefox=navigator.userAgent.toLowerCase().indexOf('firefox') > -1,
loaded = false;
var IE = navigator.userAgent.indexOf(' MSIE ') > -1;
var DEVMODE = true;
var projection = d3.geo.miller()
.scale(width / (2*Math.PI)) // woolly rationale here...
.translate([width / 2, height * 1.25 / 2])
.precision(5)
.rotate([-10,0,0]);
var colors = d3.scale.category20();
var format = d3.format("d");
var quantize = d3.scale.quantize().range(colors.range());
var MAX_ZOOM = 120;
var path = d3.geo.path()
.projection(projection);
var globalZoom = {};
var currentZoom = globalZoom;
var lastCountryZoom = null;
var lastProvinceZoom = null;
var deepLink = null;
function resetSvg() {
svg.selectAll('.map').remove();
svg.selectAll('.sea').remove();
svg.selectAll('.key').remove();
svg.selectAll('.mapToolTip').remove();
hideMinusButton();
}
function renderSea() {
var sea = svg.append('rect').classed('sea',true).attr('x',0).attr('y',0).attr('width',width).attr('height',height);
sea.style("pointer-events", "all").on('click',zoomOut);
}
function renderWorld() {
var w = globalZoom.topojson;
map = svg.append('g').classed('map',true);
renderKeyArea();
var countryGeo = topojson.feature(w, w.objects.countries);
// trace the outline of the land
map.insert("path", ".lboundary")
.datum(topojson.mesh(w, w.objects.land))
.classed('lboundary',true)
.classed('land',true)
.attr("d", path);
// draw all the countries
map.selectAll(".country")
.data(countryGeo.features)
.enter().append('path')
.classed('country',true)
.attr("d", function(t) {
return path(t);
}).style('pointer-events','fill');
// draw boundaries between countries
map.insert("path", ".cboundary")
.datum(topojson.mesh(w, w.objects.countries, function(a, b) { return a !== b; }))
.classed('cboundary',true)
.attr("d", path).style('pointer-events','none');
if (!zoomDisabled) {
map.on("click", zoomRouter).on('touchstart',detectDoubleTap);
} else {
map.selectAll(".country").style('cursor','auto');
}
map.on("mousemove", mouseOverRegion).on("mouseout", mouseOutRegion);
IE && fixLineWidths();
renderLoadingAnimation();
zoomDataLoader && zoomDataLoader('world',null,null,dataset,'Global',populateGlobalData.bind(this));
my.deepLink();
}
function detectDoubleTap() {
var t = d3.touches(svg.node()), now;
now = Date.now();
DEVMODE && console.log('scanning for double tap...', lastTouchEnd, now, t);
if (t.length === 1) {
if (lastTouchEnd && (now - lastTouchEnd <= 750)) {
DEVMODE && console.log('double tapped...');
zoomRouter();
}
lastTouchEnd = now;
}
//d3.event.preventDefault();
}
function zoomRouter() {
var e = d3.event,
target = d3.select(e.target),
d = target.datum();
if (target.classed('country')) {
zoomToCountryByClick();
} else if (target.classed('province')) {
if (d.properties.iso_a2 && d.properties.iso_a2 == 'US') {
zoomToProvinceByClick();
} else {
extraZoom();
}
} else if (target.classed('county')) {
extraZoom();
}
}
function preRenderCountry() {
map.selectAll(".country").classed('backgrounded',true);
map.selectAll(".county").remove();
map.selectAll(".ctboundary").remove();
}
function renderCountry() {
var provincesTopojson = lastCountryZoom.topojson;
var iso_a2 = lastCountryZoom.id;
map.selectAll(".cboundary.zoomed").remove();
map.insert("path", ".cboundary")
.datum(topojson.mesh(provincesTopojson, provincesTopojson.objects.countries))
.classed('cboundary',true)
.classed('zoomed',true)
.attr("d", path).style('pointer-events', 'none');
var provinceGeo = topojson.feature(provincesTopojson, provincesTopojson.objects.provinces);
map.selectAll(".province").remove();
// draw all the provinces
var provinces = map.selectAll(".province")
.data(provinceGeo.features)
.enter().append('path')
.classed('province',true)
.attr("d",function (t) {
return path(t);
});
// draw boundaries between provinces
map.selectAll(".pboundary").remove();
map.insert("path", ".pboundary")
.datum(topojson.mesh(provincesTopojson, provincesTopojson.objects.provinces, function (a, b) {
return a !== b;
}))
.classed('pboundary',true)
.attr("d", path).style('pointer-events', 'none');
map.selectAll('#pClip').remove();
if (iso_a2 == 'TZ') { // add a clipping path by the country outline... to fix tanzania's 'problem'
provinces.attr("clip-path", "url(#pClip)");
map.append("defs").append("clipPath")
.attr("id", "pClip")
.append("path")
.datum(topojson.mesh(provincesTopojson, provincesTopojson.objects.countries))
.attr("d", path).style('pointer-events', 'none');
}
provinces.style("pointer-events", "fill");
IE && fixLineWidths();
}
function preRenderCounties() {
map.selectAll(".cboundary.zoomed").remove();
map.selectAll(".pboundary.zoomed").remove();
map.selectAll(".province").classed('mhidden',true);
}
function renderCounties() {
var countiesTopojson = lastProvinceZoom.topojson;
// draw a refined state outline
var stateGeo = topojson.feature(countiesTopojson, countiesTopojson.objects.states);
var state = stateGeo.features[0];
map.append("path")
.datum(state)
.classed('pboundary',true)
.classed('zoomed',true)
.attr("d", path).style('pointer-events', 'none');
// draw the counties.
var countyGeo = topojson.feature(countiesTopojson, countiesTopojson.objects.counties);
map.selectAll(".county").remove();
// draw all the provinces
map.selectAll(".county")
.data(countyGeo.features)
.enter().append('path')
.classed('county',true)
.attr("d",function (t) {
return path(t);
}).style("pointer-events", "all")
.attr('style',function(d) {
// hack to not turn the sea within the county boundary grey...
// it does exist as a shape in the shapefile, but does not have \
// a county name.
if (!d.properties.COUNTY) {
return 'fill:none';
}
return '';
});
// draw boundaries between provinces
map.selectAll(".ctboundary").remove();
map.insert("path", ".ctboundary")
.datum(topojson.mesh(countiesTopojson, countiesTopojson.objects.counties, function (a, b) {
return a !== b;
}))
.classed('ctboundary',true)
.attr("d", path).style('pointer-events', 'none');
IE && fixLineWidths();
}
function zoomToCountryByClick() {
var e = d3.event,
target = d3.select(e.target),
d = target.datum();
zoomToCountry(d);
}
function zoomToCountryByCode(iso_a2) {
var w = globalZoom.topojson;
var countryGeo = topojson.feature(w, w.objects.countries);
var feature = countryGeo.features.filter(function(c) { return c.properties.iso_a2 == iso_a2; })[0];
if (feature) {
zoomToCountry(feature);
}
}
function zoomToCountry(feature) {
// -99 is a code natural earth gives to tiny territories with no country code... eg/ guantanamo bay
if (feature && feature.properties && feature.properties.iso_a2 && feature.properties.iso_a2 != -99) {
iso_a2 = feature.properties.iso_a2;
name = feature.properties.name;
lastProvinceZoom = null;
zoom(feature, ROGUE_STATES, iso_a2, 0.85);
lastCountryZoom = currentZoom;
lastCountryZoom.name = name;
preRenderCountry();
showMinusButton();
// disable mouseover events for the selected province, (but not
// neighbouring countries).
d3.selectAll('.country').style('pointer-events', function (d) {
return d.properties.iso_a2 == iso_a2 ? 'none' : 'all';
});
// trigger the onzoom handler, but not if we're about to deep link down to a province
if (!deepLink || deepLink.province == null) {
onZoom && onZoom('country', zoomedRegionName(), iso_a2);
}
zoomDataPreloader && zoomDataPreloader('country', iso_a2, null, dataset, zoomedRegionName());
d3.json(topojsonPrefix+"/provinces/provinces_"+iso_a2+".json", function(error, ptopo) {
if (error) {
DEVMODE && console.log(error);
return;
}
if (currentZoom.id == iso_a2) {
currentZoom.topojson = ptopo;
lastCountryZoom.topojson = ptopo;
renderCountry();
renderLoadingAnimation();
zoomDataLoader && zoomDataLoader('country', iso_a2, null, dataset, zoomedRegionName(), populateProvinceData);
my.deepLink();
}
});
} else {
DEVMODE && console.log('no iso_a2 found', feature, e);
}
}
function zoomToProvinceByClick() {
var e = d3.event,
target = d3.select(e.target),
d = target.datum(), iso_a2, name;
zoomToProvince(d);
}
function zoomToProvinceByCode(adm1_code) {
var w = lastCountryZoom.topojson;
var provinceGeo = topojson.feature(w, w.objects.provinces);
var feature = provinceGeo.features.filter(function(c) { return c.properties.adm1_code == adm1_code; })[0];
if (feature) {
zoomToProvince(feature);
} else {
DEVMODE && console.log('feature not found');
}
}
/**
* Currently only works for the us, which zooms a second step into counties...
*
* In the future, we may need to do something similar for Australia, Canada and other states.
*/
function zoomToProvince(feature) {
var adm1_code, name, currentCountryId = lastCountryZoom.id;
if (feature && feature.properties && feature.properties.adm1_code) {
adm1_code = feature.properties.adm1_code;
name = feature.properties.name;
zoom(feature, ROGUE_US_PROVINCES_BY_ADM1_CODE, adm1_code, 0.85);
lastProvinceZoom = currentZoom;
lastProvinceZoom.name = name;
preRenderCounties();
// disable mouseover events for the selected province, (but not
// neighbouring countries).
d3.selectAll('.country').style('pointer-events', function (d) {
return d.properties.iso_a2 == currentCountryId ? 'none' : 'all';
});
d3.selectAll('.province').style('pointer-events', function (d) {
return d.properties.adm1_code == adm1_code ? 'none' : 'all';
});
onZoom && onZoom('province', zoomedRegionName(), adm1_code);
zoomDataPreloader && zoomDataPreloader('province', currentCountryId, adm1_code, dataset, zoomedRegionName());
d3.json(topojsonPrefix+"/counties/counties_"+adm1_code+".json", function(error, ctopo) {
if (error) {
DEVMODE && console.log(error);
return;
}
// just in case there's been another click zoom before the load...
if (currentZoom.id === adm1_code) {
currentZoom.topojson = ctopo;
lastProvinceZoom.topojson = ctopo;
renderCounties();
renderLoadingAnimation();
zoomDataLoader && zoomDataLoader('province', currentCountryId, adm1_code, dataset, zoomedRegionName(), populateCountyData);
my.deepLink();
}
});
}
}
function extraZoom() {
var e = d3.event,
target = d3.select(e.target),
d = target.datum(), bounds, fips, adm1_code;
if (d && d.properties) {
if (d.properties.FIPS) {
fips = d.properties.FIPS;
zoom(d, ROGUE_US_COUNTIES, fips, 0.5);
if (CALIFORNIA_HACK.indexOf(fips) != -1) {
// we're zoomed right in on SF... hack by clipping the
// US
map.append("defs").append("clipPath")
.attr("id", "calHackClip")
.append("path")
.datum(topojson.mesh(lastProvinceZoom.topojson, lastProvinceZoom.topojson.objects.states))
.attr("d", path).style('pointer-events', 'none');
setTimeout(function() {
map.selectAll('.lboundary').attr("clip-path", "url(#calHackClip)");
map.selectAll('.country').attr("clip-path", "url(#calHackClip)");
},500);
} else {
killCaliforniaHack();
}
} else if (d.properties.adm1_code) {
adm1_code = d.properties.adm1_code;
DEVMODE && console.log('Extra zoom on',adm1_code);
zoom(d, ROGUE_PROVINCES_BY_ADM1_CODE, adm1_code, 0.5);
}
}
}
function killCaliforniaHack() {
setTimeout(function() {
map.selectAll('#calHackClip').remove();
map.selectAll('.lboundary').attr("clip-path", "");
map.selectAll('.country').attr("clip-path", "");
},300);
}
function zoomOut() {
// remove any province clipping shapes.
map.selectAll('#pClip').remove();
killCaliforniaHack();
if (lastProvinceZoom && lastProvinceZoom.id != currentZoom.id) {
currentZoom = lastProvinceZoom;
// not much to do here, province zooms don't show/hide anything new
//renderCounties();
onZoom && onZoom('province', zoomedRegionName(), lastProvinceZoom.id);
scaleMap();
} else if (lastCountryZoom && currentZoom.id != lastCountryZoom.id) {
currentZoom = lastCountryZoom;
lastProvinceZoom = null;
// stop displaying any zoomed in provinces!
map.selectAll(".county").remove();
map.selectAll(".ctboundary").remove();
map.selectAll(".pboundary.zoomed").remove();
map.selectAll(".cboundary").classed('zoomed',false);
// re-render the country selection and data
renderCountry();
setColorStyles('.province', 'adm1_code', lastCountryZoom.data);
// re-enable mouseover events and clicks for all provinces
map.selectAll('.province').style('pointer-events','fill')
onZoom && onZoom('country', zoomedRegionName(), lastCountryZoom.id);
scaleMap();
} else {
zoomOutWorld();
}
}
function zoomOutWorld() {
if (currentZoom !== globalZoom) {
killCaliforniaHack();
currentZoom = globalZoom;
lastProvinceZoom = null;
lastCountryZoom = null;
// remove any province clipping shapes.
map.selectAll('#pClip').remove();
// stop displaying any zoomed in provinces and/or counties!
map.selectAll(".province").remove();
map.selectAll(".county").remove();
map.selectAll(".pboundary").remove();
map.selectAll(".ctboundary").remove();
map.selectAll(".cboundary.zoomed").remove();
map.selectAll(".country").classed('backgrounded',false) // remove background greyed out nature
.style('pointer-events','fill'); // re-enable mouseover events and clicks
map.selectAll(".cboundary").classed('zoomed',false);
// re-render global data
setColorStyles('.country', 'iso_a2', globalZoom.data);
hideMinusButton();
onZoom && onZoom('world', zoomedRegionName(), null);
scaleMap();
}
}
function zoomedRegionName() {
if (lastCountryZoom == null) {
return 'World';
}
if (lastProvinceZoom) {
return lastProvinceZoom.name;
}
if (lastCountryZoom) {
return lastCountryZoom.name;
}
return '';
}
// note the dataset check - dataset is changed when the map is re-populated
// and allows you to ignore callbacks from previous datasets
function populateGlobalData(countryId, provinceId, d, values) {
DEVMODE && console.log('populateGlobalData', countryId, provinceId, d, values);
if (d == dataset) {
globalZoom.data = values;
if (lastCountryZoom == null) {
setColorStyles('.country', 'iso_a2', values);
}
} else {
DEVMODE && console.log('data thrown out',d,dataset);
}
}
function populateProvinceData(countryId, provinceId, d, values) {
DEVMODE && console.log('populateProvinceData', countryId, provinceId, d, values);
if (lastCountryZoom && lastCountryZoom.id == countryId && d == dataset) {
lastCountryZoom.data = values;
if (lastProvinceZoom == null) {
setColorStyles('.province', 'adm1_code', values);
}
} else {
DEVMODE && console.log('data thrown out',d,dataset);
}
}
function populateCountyData(countryId, provinceId, d, values) {
DEVMODE && console.log('populateCountyData',countryId, provinceId, d, values);
if (lastProvinceZoom && lastProvinceZoom.id == provinceId && d == dataset) {
lastProvinceZoom.data = values;
setColorStyles('.county', 'FIPS', values);
} else {
DEVMODE && console.log('data thrown out',d,dataset);
}
}
function isNumber(obj) {
return (typeof obj === "number");
};
function setColorStyles(cssClass, key, values) {
DEVMODE && console.log('setColorStyles',cssClass, key, values);
if (values) {
var extent = d3.extent(d3.values(values));
extent[0] = Math.floor(extent[0]);
extent[1] = Math.ceil(extent[1]);
// If we don't have a useful range, but want to colour in some countries as zero
// force the range to 4. Just because it looks good on the key.
// d3 scale domain fails to work if the extents are equal.
if (extent[0] == extent[1]) {
extent[1] += 4;
}
quantize.domain(extent);
svg.selectAll(cssClass)
.style("fill", function (d) {
if (d.properties && values && d.properties[key] && isNumber(values[d.properties[key]])) {
var color = quantize(values[d.properties[key]]);
//DEVMODE && console.log('setting color to '+color+' for ' + d.properties[key]+' value is '+values[d.properties[key]]);
return color;
} else {
//DEVMODE && console.log('setting color to none for ' + d.properties[key]);
// avoid clearing the fill:none on sea areas of US counties
if (cssClass == '.county' && !d.properties.COUNTY) {
return 'none';
}
return '';
}
});
renderKey();
} else {
// Blank any coloured in regions... if no values.
svg.selectAll(cssClass).style('fill',function (d) {
// avoid clearing the fill:none on sea areas of US counties
if (cssClass == '.county' && !d.properties.COUNTY) {
return 'none';
}
return '';
});
renderMissingDataKey();
}
}
function mouseOverRegion() {
var e = d3.event, m = d3.mouse(svg.node()),
target = d3.select(e.target),
d = target.datum(), ttxoffset = 10, ttwidth,
flipped, x, name, data;
if (!d.properties) {
return;
}
if (d.properties.name) {
name = d.properties.name;
if (name == 'France') {
// The french are special... because of their overseas departments.
m = d3.mouse(svg.node());
var departments = ROGUE_STATES['FR'];
for (i = 0; i < departments.length; i++) {
if (isPointInBounds(departments[i].click, m)) {
name = departments[i].name;
break;
}
}
}
} else if (d.properties.COUNTY) {
name = d.properties.COUNTY;
} else {
name = 'Unknown region'; // wha?
}
function lookup(zoom, key) {
if (zoom && zoom.data && zoom.data && zoom.data.hasOwnProperty(key)) {
return toolTipTitle + ': ' +format(zoom.data[key]);
} else {
return toolTipTitle + ': No data';
}
}
if (d.properties.adm1_code) {
data = lookup(lastCountryZoom, d.properties.adm1_code);
} else if (d.properties.iso_a2) {
data = lookup(globalZoom, d.properties.iso_a2);
} else if (d.properties.FIPS) {
data = lookup(lastProvinceZoom, d.properties.FIPS);
}
ttwidth = (d3.max([name.length, data.length]) * 6) + 10;
flipped = (m[0] + ttwidth + ttxoffset > width);
x = flipped ? m[0]-ttwidth-ttxoffset : m[0] + ttxoffset;
svg.selectAll(".mapToolTip").remove();
var g = svg.append("g")
.classed('mapToolTip',true);
g.append('rect')
.attr('width',ttwidth)
.attr('height', '33')
.attr("x", x)
.attr("y", m[1]+5);
g.append("text")
.attr("x", x + 5)
.attr("y", m[1] + 15)
.attr("dy", ".35em")
.text(name);
g.append("text")
.attr("x", x + 5)
.attr("y", m[1] + 15)
.attr("dy", "1.6em")
.style('fill',toolTipColor)
.text(data);
//d3.event.stopPropagation();
}
function mouseOutRegion() {
svg.selectAll(".mapToolTip").remove();
}
function isPointInBounds(bounds, p) {
var bottomLeft = projection(bounds[0]), topRight = projection(bounds[1]),
point, scaling = calculateScaling();
if (scaling) {
point = [(p[0]-scaling.tr[0])/scaling.s,(p[1]-scaling.tr[1])/scaling.s];
} else {
point = p;
}
return point[0] >= bottomLeft[0]
&& point[0] <= topRight[0]
&& point[1] <= bottomLeft[1]
&& point[1] >= topRight[1];
}
function scaleMap(transition) {
var m = (transition || transition == null) ? map.transition().duration(1000) : map, sc = calculateScaling();
m.attr('transform', 'translate(' + sc.tr.join(',') + ') scale(' + sc.s + ')');
IE && fixLineWidths();
}
function fixLineWidths() {
var sc = calculateScaling(), s = sc.s;
var halfPxWidth = (0.5/s) + 'px';
var twoPxWidth = (2/s) + 'px';
var selectionWidth = (10/s) + 'px';
DEVMODE && console.log('fixing line widths for scale '+s+' to ',halfPxWidth,twoPxWidth,selectionWidth);
map.selectAll(".cboundary").style('stroke-width',halfPxWidth);
map.selectAll(".ctboundary").style('stroke-width',halfPxWidth);
map.selectAll(".pboundary").style('stroke-width',halfPxWidth);
map.selectAll(".cboundary.zoomed").style('stroke-width',selectionWidth);
map.selectAll(".pboundary.zoomed").style('stroke-width',selectionWidth);
map.selectAll(".lboundary").style('stroke-width',twoPxWidth);
}
function calculateScaling() {
var bounds, scalePadding;
if (currentZoom && currentZoom.bounds && currentZoom.scalePadding) {
bounds = currentZoom.bounds;
scalePadding = currentZoom.scalePadding;
var centroid = [d3.mean([bounds[0][0],bounds[1][0]]), d3.mean([bounds[0][1],bounds[1][1]])];
var p1 = projection(bounds[0]);
var p2 = projection(bounds[1]);
var sx = scalePadding/(Math.abs(p2[0] - p1[0]));
var sy = scalePadding/(Math.abs(p2[1] - p1[1]));
var s = d3.min([width*sx,height*sy,MAX_ZOOM]);
var tr = projection(centroid);
tr[0] = -tr[0]*s + (width)/2;
tr[1] = -tr[1]*s + (height)/2;
return {
s: s,
tr: tr
};
} else {
return {
s: 1,
tr: [0,0]
}
}
}
function zoom(feature, rogueRegions, id, scalePadding) {
var m, t, bounds, i;
if (!feature) {
DEVMODE && console.log('failing to zoom, cause no feature!');
}
if (d3.keys(rogueRegions).indexOf(id) != -1) {
if (rogueRegions[id].length == 1 || !d3.event) {
bounds = rogueRegions[id][0].bounds;
} else {
m = d3.mouse(svg.node());
for (i = 0; i < rogueRegions[id].length; i++) {
if (isPointInBounds(rogueRegions[id][i].click, m)) {
bounds = rogueRegions[id][i].bounds;
break;
}
}
}
} else {
bounds = d3.geo.bounds(feature);
}
// we have to store all this, as we
currentZoom = {
id:id,
bounds: bounds,
scalePadding: scalePadding
};
scaleMap();
}
function showMinusButton() {
d3.selectAll('.minus').remove();
var minus = svg.append('g').attr('class','minus');
minus.append('rect').attr('class','box').attr('x',15).attr('y',45).attr('width',18).attr('height',18);
minus.append('rect').attr('class','sign').attr('x',20).attr('y',52).attr('width',9).attr('height',4);
minus.style("pointer-events", "all").on("click", zoomOut);
var world = svg.append('g').attr('class','minus');
world.append('rect').attr('class','box').attr('x',15).attr('y',15).attr('width',18).attr('height',18);
world.append('path').attr('class','world').attr('x',20).attr('y',22).attr('d',WORLD_PATH).attr('transform','translate(31 28) scale(-0.013)');
world.style("pointer-events", "all").on("click", zoomOutWorld);
}
function hideMinusButton() {
d3.selectAll('.minus').remove();
}
function renderKeyArea() {
var r = quantize.range(),
l = r.length, kw = 125, kh = ((l - 1)*20) + 75;
var key = svg.append('g').attr('class','key').attr('transform','translate('+0+','+(height - (colors.range().length * 20 + 55))+')');
key.append('rect').attr('x',0).attr('y',0).attr('height',kh).attr('width',kw).attr('style','fill:white; fill-opacity:0.7');
}
function renderKey() {
var d = quantize.domain(),
r = quantize.range(),
n, i, label, l = r.length, kw = 125;
if (d[1] - d[0] > (r.length*10)) {
n = Math.round((d[1] - d[0])/r.length);
} else {
n = ((d[1] - d[0])/r.length).toFixed(1);
}
var key = d3.select('.key');
key.selectAll('.keyContainer').remove();
var container = key.append('g').attr('transform','translate(15 0)').attr('class','keyContainer');
for (i = 0; i < l; i++) {
container.append('rect').attr('x', 0).attr('y',((l - i - 1)*20 + 40)).attr('height',20).attr('width',20).attr('style','fill:'+ r[i]);
if ((i + 1) == r.length) {
label = '>= ' + format(d[0] + n * i);
} else {
label = '< ' + format(d[0] + n * (i+1));
}
container.append('text').attr('x',kw-30).attr('y',((l - i - 1)*20) + 58).attr('dy','-0.5em').attr('text-anchor','end').text(label);
}
container.append('text').attr('class','keyTitle').attr('x',0).attr('y',15).text(keyTitle).attr('dy','1em');
container.append('line').attr('x1',0).attr('y1',30).attr('x2',kw - 30).attr('y2',30);
}
function renderMissingDataKey() {
var d = quantize.domain(),
r = quantize.range(),
l = r.length, kw = 125;
var key = d3.select('.key');
key.selectAll('.keyContainer').remove();
var container = key.append('g').attr('transform','translate(15 0)').attr('class','keyContainer');
container.append('text').attr('class','keyTitle').attr('x',0).attr('y',15).text(keyTitle).attr('dy','1em');
container.append('line').attr('x1',0).attr('y1',30).attr('x2',kw - 30).attr('y2',30);
container.append('text').attr('class','keyTitle').attr('text-anchor','middle').attr('x',(kw-30)/2).attr('y',55).text('No data').attr('dy','1em');
}
function renderLoadingAnimation() {
var r = quantize.range(), l = r.length, kw = 125, kh = ((l - 1)*20) + 75, radius = 30, π = Math.PI, θ = π/l;
var speed = 4,
start = Date.now();
var key = d3.select('.key');
key.selectAll('.keyContainer').remove();
var container = key.append('g').attr('transform','translate(15 0)').attr('class','keyContainer');
container.append('text').attr('class','keyTitle').attr('x',0).attr('y',15).text(keyTitle).attr('dy','1em');
container.append('line').attr('x1',0).attr('y1',30).attr('x2',kw - 30).attr('y2',30);
var anim = container.append('g').attr('transform', 'translate('+(kw-30)/2+' '+((kh/2)+10)+')').attr('class','anim');
var circle = anim.selectAll(".loading")
.data(d3.range(l*2))
.enter().append("circle")
.attr("class", "loading");
circle.attr("style", function (d,i) { return 'fill:'+r[i%l]+';fill-opacity:0' })
.transition().duration(750).attr("style", function (d,i) { return 'fill:'+r[i%l]+';fill-opacity:1' });
circle.attr("cy", function(d,i) { return Math.sin(θ*i) * radius });
circle.attr("cx", function(d,i) { return Math.cos(θ*i) * radius });
circle.attr("r", 5);
d3.timer(function() {
var c = key.selectAll('.anim');
var angle = (Date.now() - start) * speed,
transform = function() { return 'translate('+(kw-30)/2+' '+((kh/2)+10)+') rotate(' + angle / radius + ')'; };
c.attr("transform", transform);
return c && c[0] && (c[0].length == 0);
});
}
var load = my.load = function() {
loaded = true;
onZoom && onZoom('world', 'World', null);
zoomDataPreloader && zoomDataPreloader('world', null, null, dataset, 'World');
// For the moment, we have a different view of the world for Firefox users
// They can't handle the polygons of the real world:
var json = firefox ? '/world-moz.json' : '/world.json';
d3.json(topojsonPrefix+json, function(error, world) {
if (error) {
DEVMODE && console.log(error);
return;
}
globalZoom.topojson = world;
renderSea();
renderWorld();
});
};
/*******************************************************
* Boring setters, constants and data hashes after this point: *
*******************************************************/
function my(selection){
svg = selection;
svg.attr("width", width)
.attr("height", height);
load();
}
my.width = function(value) {
if (!arguments.length) return width;
width = value;
projection.scale(width / (2*Math.PI)).translate([width / 2, height * 1.25 / 2]);
return my;
};
my.height = function(value) {
if (!arguments.length) return height;
height = value;
projection.scale(width / (2*Math.PI)).translate([width / 2, height * 1.25 / 2]);
return my;
};
my.zoomDataLoader = function(loader) {
zoomDataLoader = loader;
return my;
};
my.zoomDataPreloader = function(loader) {
zoomDataPreloader = loader;
return my;
};
my.colors = function(c) {
colors = c;
quantize.range(colors.range());
return my;
};
my.format = function(f) {
format = f;
return my;
};
my.keyTitle = function(t) {
keyTitle = t;
return my;
};
my.toolTipTitle = function(t) {
toolTipTitle = t;
return my;
};
my.toolTipColor = function(t) {
toolTipColor = t;
return my;
};
my.onZoom = function(f) {
onZoom = f;
return my;
};
my.zoomDisabled = function() {
zoomDisabled = true;
return my;
};
my.topojsonPrefix = function(s) {
topojsonPrefix = s;
return my;
};
my.dataset = function(n) {
if (loaded) {
dataset = n;
globalZoom.data = null;
zoomDataLoader && zoomDataLoader('world', null, null, dataset,'Global',populateGlobalData);
if (lastCountryZoom) {
lastCountryZoom.data = null;
zoomDataLoader && zoomDataLoader('country', lastCountryZoom.id, null, dataset, zoomedRegionName(), populateProvinceData);
}
if (lastProvinceZoom) {
lastProvinceZoom.data = null;
zoomDataLoader && zoomDataLoader('province', lastCountryZoom.id, lastProvinceZoom.id, dataset, zoomedRegionName(), populateCountyData);
}
renderLoadingAnimation();
}
return my;
};
/**
*
* @param country - iso_a2 country code - eg/ US
* @param province - functional with adm1_code
* @param county - works for
*/
my.deepLink = function(country,province,county) {
DEVMODE && console.log('deeplink',deepLink);
if (country || province) {
deepLink = {
country: country,
province: province,
county: county
};
}
if (deepLink) {
if (deepLink.country && globalZoom.topojson && (!currentZoom || currentZoom.id !== deepLink.country)) {
zoomToCountryByCode(deepLink.country);
deepLink.country = null;
}
// Zoom to a US state
if (deepLink.province &&
currentZoom && currentZoom.id == 'US'
&& lastCountryZoom && lastCountryZoom.topojson
&& (!currentZoom || currentZoom.id !== deepLink.province)) {
zoomToProvinceByCode(deepLink.province);
deepLink.province = null;
DEVMODE && console.log('attempted province zoom');
}
// Note, deep linking to extra zoom locations (province or county) is not yet handled.
}
return my;
};
my.resize = function() {
resetSvg();
svg.attr('width',width).attr('height',height);
renderSea();