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skymap2.html
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skymap2.html
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<html>
<style >
.button {
position: relative;
background-color: #4CAF50;
border: none;
font-size: 18px;
color: #FFFFFF;
padding: 12px;
width: 200px;
text-align: center;
transition-duration: 0.4s;
text-decoration: none;
overflow: hidden;
cursor: pointer;
}
.button:after {
content: "";
background: #f1f1f1;
display: block;
position: absolute;
padding-top: 300%;
padding-left: 350%;
margin-left: -20px !important;
margin-top: -120%;
opacity: 0;
transition: all 1.2s
}
.button:active:after {
padding: 0;
margin: 0;
opacity: 1;
transition: 0s
}
</style>
<body>
<h1>Star Density Map</h1>
<p>Click to select, double click to cancel</p>
<select id="mapname">
<option value="star"> starDensity </option>
<option value="tri"> TRIstarDensity </option>
</select>
<select id="coord">
<option value="eq"> Equatorial </option>
<option value="gal"> Galactic </option>
</select>
<select id="nside">
<option value="16"> nside=16 </option>
<option value="64"> nside=64 </option>
</select>
<div class="slider item">
<div class="label">colormap scale </div>
<div><span class="low">0</span> <input type="range" id='cmaxslider' name="scale" min="3.5" max="8" step='0.1' value="6"> <span>10000000 stars/sq deg</span></div>
</div>
<button class="button" onclick = "update()">Update</button>
<div id="plot"></div>
<p>Selected pixIds: <p>
<div id="info"></div>
</body>
</html>
<!-- Load d3.js-->
<script src="https://d3js.org/d3.v5.min.js"></script>
<script src="https://d3js.org/d3-geo.v1.min.js"></script>
<script src="https://d3js.org/d3-geo-projection.v2.min.js"></script>
<script type="text/javascript">
var margin = {top:50, bottom:50, right:50, left:50};
var width = 1000 - margin.left - margin.right;
var height = 600 - margin.top - margin.bottom;
//append svg
var svg = d3.select("#plot")
.append("svg")
.attr("width", width + margin.left + margin.right)
.attr("height", height + margin.top + margin.bottom)
//.style("background-color", "rgba(128, 255, 128, 0.1)")
.style("background-color", "white")
.append("g")
.attr("transform", "translate("+margin.left+", "+margin.top+")")
// add axis
var x = d3.scaleLinear()
.domain([0, 360])
.range([0, width]);
svg.append("g")
.attr("transform", "translate(0, "+height+")")
.call(d3.axisBottom(x));
var y = d3.scaleLinear()
.domain([-90, 90])
.range([height, 0]);
svg.append("g")
.attr("transform", "translate(0, 0)")
.call(d3.axisLeft(y));
//var cmap = d3.scaleSequential(d3.interpolateSpectral).domain([1000000, 0])
var cmap = d3.scaleSequential().domain([0, 1000000,]).interpolator(d3.interpolateViridis);
var tooltip = d3.select("body").append("div")
.style("position", "absolute")
.style("z-index", "10")
.style("visibility", "hidden")
.style("background", "white" )
.style("opacity", 0.6)
// mouseover function
var mouseover = function(d) {
//console.log( proj( [-d.fieldRa, d.fieldDec] ) )
d3.select(this)
.style("stroke", "black")
.style("stroke-opacity", 1)
//.style("opacity", 1)
//.attr("r", 5)
.style("cursor", "default")
tooltip.style("visibility", "visible")
.text([d.pixId, d.fieldRa, d.fieldDec, d.starDensity_r25, d.TRIstarDensity_r25])
}
var mousemove = function(d){
tooltip.style("top", (d3.event.pageY-10)+"px")
.style("left",(d3.event.pageX+10)+"px");
// d3.event.pageX/Y is the current mouse coordinate
}
// mouseleave
var mouseleave = function(d){
d3.select(this)
.style("stroke", "none")
// .style("opacity", 0.5)
//.attr("r", 2)
tooltip.style("visibility", "hidden")
}
var click = function(d){
console.log( [ d.pixId] )
//console.log ( proj( [-d.fieldRa, d.fieldDec] ) )
d3.select(this)
.style("stroke", "black")
.style("opacity", 0.9)
arr.push(d.pixId)
arr = Array.from(new Set(arr))
svg2txt.text(arr)
}
var dblclick = function(d){
console.log( [d.pixId] )
d3.select(this)
.style("opacity", 0.3)
var idx = arr.indexOf( d.pixId)
if (idx!=-1){
arr.splice( idx, 1) }; // remove double clicked pix
svg2txt.text(arr)
}
// projection
//var proj = d3.geoMollweide().scale(160)
var proj = d3.geoMollweide().scale(156).rotate([0,0]).translate([width/2, height/2])
//var proj = d3.geoConicEqualArea().scale(160)
var nside16 = "./data/Fields_nside16.csv"
var nside64 = "./data/Fields_nside64.csv"
//get coordinate option
// Add dots
function update(){
arr = []
svg2txt.text(arr)
var coord = document.querySelector("#coord").value
var mapname = document.querySelector("#mapname").value
var nside = document.querySelector("#nside").value
if (nside==64){
fields = nside64
var cr = 2}
else {fields = nside16
var cr = 5}
// update cmap
var cmax = document.querySelector("#cmaxslider").value
console.log('cmax' + cmax)
//cmap.domain([cmax, 0])
cmap.domain([0, Math.pow(10, cmax)])
// read csv file
var data = d3.csv(fields).then( function(data){
console.log(data[0])
console.log(data[0].starDensity_r25)
console.log(data[0].TRIstarDensity_r25)
var scatter = svg.selectAll("circle").remove(scatter)
svg.selectAll("circle")
.data(data)
.enter()
.append("circle")
.attr("class", "skymap")
.attr("cx", function (d) {
if (coord=="eq"){
var projx = proj( [-d.fieldRa, d.fieldDec] )[0];
xLabel.text("RA");
}
else {
var projx = proj( [-d.fieldGl, d.fieldGb] )[0];
xLabel.text("Gl");
}
//var newx = changeMinMax(projx, 25, 930, 0, 360);
//return x(newx);
return projx
} )
.attr("cy", function (d) {
if (coord=="eq"){
var projy = proj( [-d.fieldRa, d.fieldDec] )[1];
yLabel.text("Dec"); }
else {
var projy = proj( [-d.fieldGl, d.fieldGb] )[1];
yLabel.text("Gb");}
//var newy = - changeMinMax(projy, 20, 480, -90, 90);
//var newy = projy
//return y( newy );
return projy
} )
.attr("r", cr)
.style("opacity", 0.5)
.style("fill", function(d){
if (mapname=="tri"){
return cmap( d.TRIstarDensity_r25) }
else{
return cmap( d.starDensity_r25 ) }
})
.on("mouseover", mouseover)
.on("mousemove", mousemove)
.on("mouseleave", mouseleave)
.on("click", click)
.on("dblclick", dblclick)
})
}
//var changeMinMax = function(oldValue, oldMin, oldMax, newMin, newMax){
// change value of variables to new range;
// var oldRange = oldMax - oldMin;
// var newRange = newMax - newMin;
// var newValue = ((oldValue - oldMin) * newRange / oldRange) + newMin;
// return newValue;
//}
// add label
var xLabel = svg.append("text")
.attr("x", width/2)
.attr("y", height + margin.top/2)
.text("RA");
var yLabel = svg.append("text")
.attr("transform", "rotate(-90)")
.attr("y", -margin.left+20)
.attr("x", -height/2)
.text("DEC")
// text to show selected pix
svg2txt = d3.select("#info")
.append("textarea")
.attr("rows", 5)
.attr("cols", 120)
.attr("disabled", true)
.style("background-color", "rgba(128, 255, 128, 0.1)")
var arr = []
//update(nside16)
update()
</script>