/
Roxana.html
1450 lines (1122 loc) · 40.1 KB
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Roxana.html
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<script type='text/javascript'
src='http://www.visualizing.org/sites/all/modules/custom/seedge_sprint/libs/d3/d3.v2.min.js'></script>
<!--<script type='text/javascript' src='../../D3/d3.v2.js'></script>-->
<style type="text/css">
body {
font-family: Verdana, Arial, Helvetica, sans-serif;
font-size: 10px;
color: #bbb;
}
a {
text-decoration: none;
}
a:active {
color: #090;
}
a:visited {
color: #090;
}
.feature {
stroke: #555;
stroke-width: 1px;
}
circle.node {
stroke: black;
stroke-width: .3px;
}
rect {
fill: steelblue;
stroke: grey;
}
line, .tikkies {
fill: none;
stroke: #000;
stroke-width: .6px;
}
.grid {
fill: none;
stroke: #FFF;
stroke-width: .3px;
}
.astxt, .bartxt {
font-size: 80%;
fill: #999;
}
.stat {
font-weight: bold;
color: white;
}
#header {
position: absolute;
top: 542px;
left: 390px;
padding: 0px;
margin: 0px;
font: 36px 'Arial Black', Impact;
color: white;
z-index: 10;
}
#subheader {
position: absolute;
top: 25px;
left: 498px;
padding: 0px;
margin: 0px;
font: italic 24px 'Times New Roman';
color: #009DDC; /*colors used on http://water.chemistry2011.org/web/iyc: #B5F0FF; #009DDC */
z-index: 11;
}
#experiments, #watertypes, #watersources, div.tooltip {
border: 1px solid grey;
}
#map {
position: absolute;
background: #444;
top: 0px;
left: 0px;
}
#choosers {
position: absolute;
top: 30px;
left: 100px;
z-index: 100;
opacity: 0;
}
#chooseI, #chooseII, #chooseIII {
position: absolute;
width: 240px;
height: 20px;
}
#chooseII {
left: 0px;
}
#chooseII {
left: 200px;
}
#chooseIII {
left: 340px;
}
#experiments, #watertypes, #watersources {
height: 18px;
padding: 0px;
font-size: 90%;
}
#bijbakje {
font-size:120%;
position: absolute;
top: 200px;
left: 20px;
width: 100px;
text-align: left;
opacity: 0;
}
#schaalbakje {
position: absolute;
top: 220px;
left: 20px;
opacity: 0;
}
#minScale{
position: absolute;
top: 240px;
left: 15px;
}
#maxScale{
position: absolute;
top: 240px;
left:115px;
}
#theNumbers {
position: absolute;
left: 5px;
top: 480px;
width: 200px;
text-align: left;
z-index: 10;
padding: 5px 5px 5px 15px;
}
#histo {
position: absolute;
left: 0px;
top: 250px;
}
#histolabel_x, #histolabel_y {
position: absolute;
opacity: 0;
/* font: 100% Arial Black;*/
}
#histolabel_y {
top: 16px;
left: 20px;
}
#histolabel_x {
top: 205px;
left: 150px;
width:50px;
text-align: right;
}
#source {
position: absolute;
bottom: 60px;
left: 540px;
color: #999;
}
div.tooltip {
position: absolute;
width: 200px;
height: 90px;
padding: 6px;
/*text-shadow: .5px .5px 1px dimgrey;*/
/* font: 24px sans-serif; */
background: red;
color: black;
border: solid 1px dimgrey;
border-radius: 4px;
-webkit-border-radius: 4px;
-mozilla-border-radius: 4px;
text-align: left;
z-index: -100;
opacity: 0;
}
#details {
position: absolute;
top: 100px;
left: 220px;
min-width: 360px;
max-width: 730px;
background: #ccc;
display: none;
z-index: 9000;
overflow: auto;
opacity: 0.9;
}
#details .cityname{
width: 120px;
text-align: right;
font-size: 8px;
color:#444
}
#details line, #details .tikkies {
fill: none;
stroke: #000;
stroke-width: 1px;
}
#details .grid {
fill: none;
stroke: #FFF;
stroke-width: .3px;
}
#details .astxt {
font-size: 12px;
fill: #000;
font-weight: bold;
}
#details .astiktxt {
font-size: 8px;
fill: #000;
font-weight: bold;
}
#details .bartxt {
font-family: "Arial Narrow";
fill: #000;
}
#close {
position: absolute;
right: 10px;
top: 10px;
color: dimgrey;
z-index: 9002;
}
</style>
<div id="header">World Wide Water Quality
<div id="subheader">2011</div>
</div>
<div id="map">
<div id="source">source: <a href="http://water.chemistry2011.org/web/iyc" target="_blank">The Global Experiment of
the International Year of Chemistry</a></div>
</div>
<div id="choosers">
<div id="chooseI">
<label for="experiments">experiment #</label>
<select id="experiments">
<option value="gwe_experiment1_v1">1: pH</option>
<option value="gwe_experiment2_v1">2: salinity</option>
<option value="gwe_experiment3_v1">3: dirt</option>
<!-- <option value="gwe_experiment4_v1">4: still</option> -->
</select>
</div>
<div id="chooseII">
<label for="watertypes">water types</label>
<select id="watertypes">
<option value="">all</option>
<option value="fresh">fresh</option>
<option value="salt">salt</option>
<option value="unknown">unknown</option>
</select>
</div>
<div id="chooseIII">
<label for="watersources">water sources</label>
<select id="watersources">
<option value="">all</option>
<option value="tap">tap</option>
<option value="drinking supply">drinking supply</option>
<option value="ground">ground</option>
<option value="rain">rain</option>
<option value="stream, river, canal">stream, river, canal</option>
<option value="pond, lake, pool">pond, lake, pool</option>
<option value="ocean">ocean</option>
<option value="waste water">waste water</option>
<option value="unknown">unknown</option>
</select>
</div>
</div>
<div id="bijbakje"></div>
<div id="schaalbakje"></div>
<div id="minScale"></div>
<div id="maxScale"></div>
<div id="theNumbers"></div>
<div id="histo">
<div id="histolabel_x">pH</div>
<div id="histolabel_y">frequency</div>
</div>
<div id="details"><span id="close">click window to close...</span></div>
<script>
/**
*Variables and settings
**/
var activeDataset;
//needed for radius consistency during zooms and for updates
var reeks, globalData, globalfirstVar, globalsecondVar, globalfirstVarlabel, globalsecondVarlabel;
var measurementCircles, detailsCircles = null;
var margin = {top:0, right:0, bottom:0, left:0},
width = 960 - margin.left - margin.right,
height = 600 - margin.top - margin.bottom;
var projection = d3.geo.equirectangular()
.scale(width+10)
.translate([width / 2.26 +50, height / 1.9]);
var path = d3.geo.path()
.projection(projection);
var q = projection.scale();
var zoom = d3.behavior.zoom()
.translate(projection.translate())
.scale(projection.scale())
.scaleExtent([height, 64 * height])
.on("zoom", move);
//prelimenary scaling stuff
var lowColor,
midColor,
highColor;
var r = d3.scale.linear();
var c = d3.scale.linear();
var highlightTimer = null; // timer to keep interaction responsive while highlighting measurement dots
d3.select("#experiments").property("value", "gwe_experiment1_v1");
d3.selectAll("#watertypes, #watersources").property("value", "");
/**
*Draw map
**/
var svg = d3.select("#map")
.append("svg")
.attr("width", width + margin.left + margin.right)
.attr("height", height + margin.top + margin.bottom)
.append("g")
.attr("transform", "translate(" + margin.left + "," + margin.top + ")")
.call(zoom);
var g = svg.append("g"),
feature = g.selectAll(".feature")
svg.append("g").attr("id", "datapoints");
/**
* setup color key holder and gradient
**/
var w = 100,
h = 14;
var bakje = d3.select("#schaalbakje")
.append("svg")
.attr("width", w)
.attr("height", h)
.append("svg:g");
var gradient = bakje.append("svg:defs")
.append("svg:linearGradient")
.attr("id", "gradient")
.attr("x1", "0%")
.attr("y1", "0%")
.attr("x2", "100%")
.attr("y2", "0%")
.attr("spreadMethod", "pad");
/**
* setup histogram
**/
var histw = 160,
histh = 160,
histpad = 60;
var his = d3.select("#histo")
.append("svg")
.attr("width", histw + histpad)
.attr("height", histh + histpad)
.append("svg:g")
.attr("transform", "translate(40,40)");
his.append("line")
.attr("x1", 0)
.attr("x2", histw)
.attr("y1", histh)
.attr("y2", histh)
.style("opacity", 1e-6)
.transition()
.delay(4000)
.duration(250)
.style("opacity", 1);
his.append("line")
.attr("x1", 0)
.attr("x2", 0)
.attr("y1", 0)
.attr("y2", histh)
.style("opacity", 1e-6)
.transition()
.delay(4000)
.duration(250)
.style("opacity", 1);
d3.selectAll("#histolabel_y, #histolabel_x")
.transition()
.delay(4300)
.duration(250)
.style("opacity", 1);
/**
* setup country details
*/
var cropw = 50,
croph = 50,
detw = width / 1.55 - cropw / 5,
deth = height / 2 - croph / 3;
var details = d3.select("#details")
.append("svg")
.attr("width", width/1.4)
.attr("height", height/1.4);
/**
*
*/
var lastData = null;
var maxt = 1,
mint = 0,
mt = 0;
function isExists(obj) {
return typeof(obj) != 'undefined' && obj != null
}
var replaceCountry = {
"Russian Federation":"Russia", "Tuninsia":"Tunisia", "United State of America":"United States of America", "United States":"United States of America", "USA":"United States of America", "US":"United States of America", /*"Georgia":"United States of America" // ???!!!,*/ "Hong Kong":"China", "UK":"United Kingdom", "uk":"United Kingdom", "Espana":"Spain", "SLOVAKIA":"Slovakia", "Slovakia":"Slovakia", "Slovensko":"Slovakia", "Turkiye":"Turkey", "turkey":"Turkey", "Serbia":"Republic of Serbia", "Bosna i Hercegovina":"Bosnia and Herzegovina", "Scotland":"United Kingdom"
}
/** Correct names of countries
Afghanistan, Angola, Albania, United Arab Emirates, Argentina,
Armenia, Antarctica, French Southern and Antarctic Lands,
Australia, Austria, Azerbaijan, Burundi, Belgium, Benin,
Burkina Faso, Bangladesh, Bulgaria, The Bahamas, Bosnia and Herzegovina
Belarus, Belize, Bolivia, Brazil, Brunei, Bhutan, Botswana,
Central African Republic, Canada, Switzerland, Chile, China,
Ivory Coast, Cameroon, Democratic Republic of the Congo, Republic of the Congo, Colombia,
Costa Rica, Cuba, Northern Cyprus, Cyprus, Czech Republic, Germany, Djibouti, Denmark, Dominican Republic
Algeria, Ecuador, Egypt, Eritrea, Spain, Estonia, Ethiopia, Finland, Fiji, Falkland Islands, France, Gabon
United Kingdom, Georgia, Ghana, Guinea, Gambia, Guinea Bissau, Equatorial Guinea, Greece, Greenland, Guatemala
Guyana, Honduras, Croatia, Haiti, Hungary, Indonesia, India, Ireland, Iran, Iraq, Iceland, Israel, Italy
Jamaica, Jordan, Japan, Kazakhstan, Kenya, Kyrgyzstan, Cambodia, South Korea, Kosovo, Kuwait, Laos, Lebanon
Liberia, Libya, Sri Lanka, Lesotho, Lithuania, Luxembourg, Latvia, Morocco, Moldova, Madagascar, Mexico,
Macedonia, Mali, Myanmar, Montenegro, Mongolia, Mozambique, Mauritania, Malawi, Malaysia, Namibia,
New Caledonia, Niger, Nigeria, Nicaragua, Netherlands, Norway, Nepal, New Zealand, Oman,
Pakistan, Panama, Peru, Philippines, Papua New Guinea, Poland, Puerto Rico, North Korea,
Portugal, Paraguay, Qatar, Romania, Russia, Rwanda, Western Sahara, Saudi Arabia, Sudan
South Sudan, Senegal, Solomon Islands, Sierra Leone, El Salvador, Somaliland, Somalia
Republic of Serbia, Suriname, Slovakia, Slovenia, Sweden, Swaziland, Syria, Chad,
Togo, Thailand, Tajikistan, Turkmenistan, East Timor, Trinidad and Tobago,
Tunisia, Turkey, Taiwan, United Republic of Tanzania, Uganda, Ukraine, Uruguay,
United States of America, Uzbekistan, Venezuela, Vietnam, Vanuatu, West Bank,
Yemen, South Africa, Zambia, Zimbabwe
**/
function initMap(data) {
lastData = {};
for (var i = 0; i < data.length; i++) {
var d = data[i];
var ccn = replaceCountry[d.country] || d.country;
if (!isExists(lastData[ccn]))
lastData[ccn] = [];
if (globalfirstVar == "sanity"&&
d[globalsecondVar] >= 24)
continue;
if (globalfirstVar == "dropsofbleach" &&
d[globalfirstVar] >= 799)
continue;
lastData[ccn].push(d);
}
}
/**
*Draw map
**/
//d3.json("world-countries.json", function(collection) {
d3.json("/sites/default/files/sprint/data/world-countries.json", function (collection) {
feature = feature
.data(collection.features)
.enter().append("path")
.attr("class", "feature")
.attr("d", path)
.attr('fill', '#222')
.on("mouseover", overpath)
.on("mousemove", moverpath)
.on("click", clickPath)
.on("mouseout", outpath);
activeDataset = "gwe_experiment1_v1";
swap_to_Exp("#CC0033", "#33FF33", "#3333CC", "pH ", "ph", "temperature (in \u00b0C): ", "temperature");
});
function updateDataset() {
var picker = d3.select("#experiments").property("value");
if (activeDataset == picker) return;
else
activeDataset = picker;
if (picker == "gwe_experiment1_v1") {
swap_to_Exp("#CC0033", "#33FF33", "#3333CC", "pH ", "ph", "temperature (in \u00b0C): ", "temperature");
}
else
if (picker == "gwe_experiment2_v1") {
swap_to_Exp("green", "greenyellow", "white", "salinity ", "sanity", "salinity by weight: ", "sanitybyweight");
}
//please note: the dataset still speaks of sanity instead of salinity - this should be corrected!
//this school:
//{"city":"Milano","coordinates":[9.18103,45.468945],"country":"Italy","natureofthewater":"fresh","numberofstudents":19,"sanity":0.24,"sanitybyweight":24,"school":"Facolta di Agraria-Universita degli studi di Milano","sourceofwater":"Casalmaiocco (LO), tapwater","teacher":"Gigliola","waterType":"fresh","waterSource":"tap"},
//{"city":"Milano","coordinates":[9.18103,45.468945],"country":"Italy","natureofthewater":"fresh","numberofstudents":19,"salinity":0.62,"salinitybyweight":62,"school":"Facolta di Agraria-Universita degli Studi di Milano","sourceofwater":"Milano, tap water","teacher":"Leonardo","waterType":"fresh","waterSource":"tap"}
//seems to have accidentally swapped salinity and salinity by weight - I changed it around, but this has to be checked though!!!
else
if (picker == "gwe_experiment3_v1") {
swap_to_Exp("green", "orange", "red", "drops of bleach ", "dropsofbleach", "temperature (in \u00b0C): ", "temperature");
}
//what is up with this school? 799 dropsofbleach?!
//{"city":"Tumon","coordinates":[144.799072,13.50454],"country":"United States","dropsofbleach":799,"natureofthewater":"Fresh","numberofstudents":7,"school":"St. Johns School of Guam","sourceofwater":"Tap","teacher":"Hieter","temperature":26,"waterType":"fresh","waterSource":"tap"}, that mentiones 799 drops of bleach?! This seems unrealistically high.
//the still efficiency dataset only has one variable that has to be plotted - how can this be made to fit the experiment changer routine?
// else
// if (picker == "gwe_experiment4_v1") { swap_to_Exp(); }
}
;
function swap_to_Exp(lowColor, midColor, highColor, firstVarlabel, firstVar, secondVarlabel, secondVar) {
globalfirstVar = firstVar;
globalsecondVar = secondVar;
globalfirstVarlabel = firstVarlabel;
globalsecondVarlabel = secondVarlabel;
/**
* Load data from JSON and draw visualization
**/
//d3.json(activeDataset + ".json", function(data) {
d3.json("/sites/default/files/sprint/data/" + activeDataset + ".json", function (data) {
/*
if (firstVar == "ph") {
}
*/
initMap(data);
if (firstVar == "sanity") {
//filter out two specific data entry errors
data = data.filter(function (d) {
return d[secondVar] < 24;
});
}
if (firstVar == "dropsofbleach") {
//filter out one unlikely outlier
data = data.filter(function (d) {
return d[firstVar] < 799;
});
}
globalData = data;
gemfirstVar = d3.round(d3.mean(data, function (d) {
return d[firstVar];
}), 2);
gemsecondVar = d3.round(d3.mean(data, function (d) {
return d[secondVar];
}), 2);
reeks = data.map(function (d) {
return d[firstVar];
});
// scale for ph to color
//c.domain(d3.extent(data.map(function(d) { return d[firstVar]; })))
//c.domain([5, d3.max(data, function(d) { return d[firstVar]; })]) // using a manually-set low value because an extreme sample is distorting the range
c.domain([d3.min(data, function (d) {
return d[firstVar];
}), gemfirstVar, d3.max(data, function (d) {
return d[firstVar];
})])// using a manually-set low value because an extreme sample is distorting the range
.range([lowColor, midColor, highColor]);
doHistogram();
/**
*Gradient legend for pH values / needs tickmarks
**/
gradient.selectAll("stop").remove();
gradient.append("svg:stop")
.attr("offset", "0%")
.attr("stop-color", lowColor)
.attr("stop-opacity", 1);
gradient.append("svg:stop")
.attr("offset", "50%")
.attr("stop-color", midColor)
.attr("stop-opacity", 1);
gradient.append("svg:stop")
.attr("offset", "100%")
.attr("stop-color", highColor)
.attr("stop-opacity", 1);
bakje.append("rect")
.attr("width", w)
.attr("height", h)
.style("fill", "url(#gradient)");
d3.select("#bijbakje").text(firstVarlabel);
d3.select("#histolabel_x").html(firstVarlabel);
var minVar = d3.min(data, function (d) { return d[globalfirstVar]; });
var maxVar = d3.max(data, function (d) { return d[globalfirstVar]; });
d3.select("#minScale").text(minVar);
d3.select("#maxScale").text(maxVar);
/* attempt at adding an axis to the legend
bakas = d3.svg.axis()
.scale(c)
.ticks(4)
.orient("bottom");
*/
/* attempt at adding an axis to the legend
bakje.append("g")
.attr("class", "x axis")
.attr("transform", "translate(," + 4 + ")")
// .attr("x1", 0)
// .attr("x2", 100)
.call(bakas);
*/
d3.selectAll("#choosers, #schaalbakje, #bijbakje")
.transition()
.delay(50)
.duration(250)
.style("opacity", 1);
// refill circles
svg.select("#datapoints").selectAll("circle").transition().duration(1000).remove();
svg.select("#datapoints").selectAll("circle.node")
.data(data)
.enter().append("circle")
.attr('class', 'measurementCircle')
.attr("transform", function (d) {
return "translate(" + projection(d.coordinates) + ")";
})
.attr("r", 0)
.attr("fill", "#aaa")
.on("mouseover", tooltipper)
.on("mousemove", toolmover)
.on("mouseout", tooltapper)
.on("click", ripple)
.attr("visibility", "visible")
.attr("r", 3)
.transition()
.delay(1200)
.duration(1250)
.attr("fill", function (d) {
return c(d[firstVar]);
})
.attr("stroke", 'black')
.attr("stroke-width",0.2);
measurementCircles = svg.select('#datapoints').selectAll('.measurementCircle');
d3.selectAll("#watertypes , #watersources")
.property("value", "");
tooltipdiv = d3.select("body")
.append("div")
.attr("class", "tooltip");
//this is a lot of html within the code
d3.select("#theNumbers")
.html("<span class=\"statlabel\">number of measurements: </span><span class=\"stat\">" + reeks.length + "</span><br/><span class=\"statlabel\">average " + firstVarlabel + "</span><span class=\"stat\">" + gemfirstVar + "</span><br/><span class=\"statlabel\">average " + secondVarlabel + "</span><span class=\"stat\">" + gemsecondVar + "</span>");
//This is quite a lot of html code inside the d3 code - isn't there a better way to do this?
//The school names vary considerably in length. So sometimes they leave a lot of white space in the div, and at other times they stick out at the bottom - resolved for now because by means of a small fontsize
//Is it possible to have the tooltip divs automatically size according to their contents?
function tooltipper(d) {
tooltipdiv
// .style("height", "40px")
.html("<span class=\"statlabel\">" + firstVarlabel + "</span><span class=\"stat\">" + d[firstVar] + "</span><br/><span class=\"statlabel\">" + secondVarlabel + "</span><span class=\"stat\">" + d[secondVar] + "</span><br/><span class=\"stat\">" + d.waterType + "</span><span class=\"statlabel\"> water</span><br/><span class=\"statlabel\">source: </span><span class=\"stat\">" + d.waterSource + "</span><br/><br/><span class=\"schoollabel\">(" + d.school + ", " + d.country + ")</span>")
.style("background", c(d[firstVar]))
.style("z-index", 100)
.transition()
.duration(250)
.style("opacity", 1);
}
;
function toolmover() {
tooltipdiv
.style("top", d3.event.pageY > height / 2 ? (d3.event.pageY - 102) + "px" : (d3.event.pageY + 12) + "px")
.style("left", d3.event.pageX > width / 2 ? (d3.event.pageX - 212) + "px" : (d3.event.pageX + 12) + "px");
}
;
function tooltapper() {
tooltipdiv
.transition()
.duration(250)
.style("opacity", 1e-6)
.style("z-index", -100);
}
;
});
}
;
function doHistogram(reeks) {
//histogramcode
if (!isExists(reeks))
reeks = window.reeks;
d3.selectAll(".grid, .tikkies, .hisrect, text")
.transition()
.duration(500)
.style("opacity", 1e-6)
.remove(); //.transition().duration(1000)
var histogram = d3.layout.histogram()(reeks);
var x = d3.scale.ordinal()
.domain(histogram.map(function (d) {
return d.x;
}))
.rangeBands([0, histw]);
var y = d3.scale.linear()
.domain([0, d3.max(histogram, function (d) {
return d.y;
})])
.range([0, histh]);
var rules = his.selectAll("g.rule")
.data(y.ticks(10))
.enter()
.append("svg:g")
.style("opacity", 1e-6)
.attr("transform", function (d) {
return "translate(0," + (histh - y(d)) + ")";
});
rules.append("line")
.attr("class", "tikkies")
.attr("x1", -1)
.attr("x2", -5);
rules.append("line")
.attr("class", "grid")
.attr("x1", 1)
.attr("x2", histw)
.attr("stroke","white");
rules.append("text")
.attr("class", "astxt")
.attr("x", -15)
.attr("dy", ".71em")
.attr("text-anchor", "middle")
.text(y.tickFormat(10))
.style("display", function (d) {
return d == 0 ? "none" : null
});
rules.transition()
.delay(4000)
.duration(250)
.style("opacity", 1);
var bars = his.selectAll("g.bars")
.data(histogram)
.enter().append("svg:g")
.attr('class', 'histoBar')
.attr('id', function (d, i) {
return 'histoBar-' + i;
})
.attr("transform", function (d) {
return "translate(" + x(d.x) + "," + (histh - y(d.y)) + ")";
})
.on('mouseover', markHistogramBar)
.on('mouseout', unmarkHistogramBar);
bars.append("rect")
.attr("class", "hisrect")
.attr("width", x.rangeBand())
.attr("y", function (d) {
return y(d.y);
})
.attr("height", 0)
.style("fill", function (d) {
return c(d.x);
})
.style("stroke", function (d) {
return d3.rgb(c(d.x)).darker();
})
.transition()
.delay(2450)
.duration(750)
.attr("y", 0)
.attr("height", function (d) {
return y(d.y);
});
bars.append("text")
.attr("class", "bartxt")
.attr("x", x.rangeBand() / 2)
.attr("y", 0)
.attr("dy", "-.35em")
// .attr("dx", ".30em")
.attr("text-anchor", "middle")
.text(function (d) {
return d3.round(d.x, 1)
})
.style("opacity", 1e-6)
.transition()
.delay(3250)
.duration(750)
.style("opacity", 1);
}
function markHistogramBar(d, i) {
// make all bars, except the hovered bar, semi transparent
var selectedBarId = 'histoBar-' + i;
his.selectAll('.histoBar').transition()
.duration(300)
.style('opacity', function (d, i) {
return ( d3.select(this).attr('id') != selectedBarId ) ? 0.3 : 1
});
highlightMeasurements(globalfirstVar, d.x, d.x + d.dx);
}
function unmarkHistogramBar(d, i) {
// remove transparency from all bars
his.selectAll('.histoBar').transition()
.duration(300)
.style('opacity', 1);
highlightMeasurements(null);
}
function highlightMeasurements(metric, lowerBound, upperBound) {
if (highlightTimer != null) {
clearTimeout(highlightTimer);
}
var watertype = d3.select("#watertypes").property("value");
var watersource = d3.select("#watersources").property("value");