////////////////////////////////////////////////////////////
//////////////////////// Set-up ////////////////////////////
////////////////////////////////////////////////////////////

var screenWidth = $(window).width();

var margin = {left: 50, top: 10, right: 50, bottom: 10},
	width = Math.min(screenWidth, 837) - margin.left - margin.right,
	height = Math.min(screenWidth, 1000)*5/6 - margin.top - margin.bottom;
			
var svg = d3.select("#chart").append("svg")
			.attr("width", (width + margin.left + margin.right))
			.attr("height", (height + margin.top + margin.bottom));
			
var wrapper = svg.append("g").attr("class", "chordWrapper")
			.attr("transform", "translate(" + (width / 2 + margin.left) + "," + (height / 2 + margin.top) + ")");;
			
var outerRadius = Math.min(width, height) / 2  - 38,
	innerRadius = outerRadius * 0.95,
	opacityDefault = 0.7; //default opacity of chords
	
////////////////////////////////////////////////////////////
////////////////////////// Data ////////////////////////////
////////////////////////////////////////////////////////////

var Names = ["JP_C_rice","JP_C_whet","JP_C_cere","JP_C_vege","JP_C_olsd","JP_C_beet","JP_C_fib","JP_C_crop","JP_C_catt","JP_C_pigs","JP_C_poul","JP_C_meat","JP_C_anip","JP_C_milk","JP_C_wool","JP_C_log","JP_C_fish","JP_MN","JP_P_catt","JP_P_pigs","JP_P_poul","JP_P_meat","JP_P_veol","JP_P_milk","JP_P_rice","JP_P_sugr","JP_P_food","JP_M_beve","JP_M_fish","JP_M_toba","JP_M_text","JP_M_wear","JP_M_lead","JP_M_wd","JP_M_rwd","JP_MaL","JP_MaH","JP_ES","JP_WT","JP_SV","JP_WST","CN_C_rice","CN_C_whet","CN_C_cere","CN_C_vege","CN_C_olsd","CN_C_beet","CN_C_fib","CN_C_crop","CN_C_catt","CN_C_pigs","CN_C_poul","CN_C_meat","CN_C_anip","CN_C_milk","CN_C_wool","CN_C_log","CN_C_fish","CN_MN","CN_P_catt","CN_P_pigs","CN_P_poul","CN_P_meat","CN_P_veol","CN_P_milk","CN_P_rice","CN_P_sugr","CN_P_food","CN_M_beve","CN_M_fish","CN_M_toba","CN_M_text","CN_M_wear","CN_M_lead","CN_M_wd","CN_M_rwd","CN_MaL","CN_MaH","CN_ES","CN_WT","CN_SV","CN_WST"
];

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[0,0,0,1.21066598436824,0,0,0,0,0,0,1.64207482568808,0,0,0,0,0,13.6788102776315,0,2.59015331984544,3.08756102228115,1.2882570435777,0,0,2.54504664789683,1.63748938331142,0,128.783685705761,9.15393333754848,404.129710221299,0,1.43997074246593,3.41526717381653,0,0,0,21.9436003588026,128.851895559235,4.91074486736009,0,893.276124394718,28.1858731784678,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,6.28501201356111,0,0,6.12735597871818,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
[0,0,0,9.23566569738241,0,0,0,1.63806693621496,0,0,0,0,0,0,0,5.9817909134172,10.2300854328716,0,2.25616647760304,2.09899982506619,0,0,1.21222268587103,4.57753504974027,8.07437336660902,0,40.1717719065076,15.9118853197462,28.5612442036467,3.41447281577523,319.548584198117,776.187180226377,51.6944472681695,0,0,121.300074966268,1149.31841798909,16.4435425465059,2.53743263065659,1769.53536209804,208.776705117338,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
[0,0,0,5.47427951949497,0,0,0,0,0,0,0,0,0,0,0,0,2.29132474361086,0,1.07584241922415,1.00301170776571,0,0,0,2.54543219032099,4.63655550626295,0,18.9728986928662,7.06301064445491,8.22730637589487,1.31882097344771,7.08561949337044,19.9812257782093,2.73592743807935,0,0,35.3082792471698,246.818868154846,6.34892065529396,0,594.738158844388,98.6769516140708,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2.77726136848744,1.314506790408,1.53742272410163,0,2.2603137893095,5.71758663243584,29.6288766540637,0,0,9.42833515485051,103.951119481108,2.83303271953396,0,111.935601663924,13.0310112238574,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2.31648717501429,24.7715070555981,0,0,20.0642752422328,1.62761189182847,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1.68662396752579,0,0,1.36612146522334,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
[0,0,0,91.1733217420685,2.62987204857749,0,0,18.4960709247471,0,0,7.66891843193845,0,0,2.9945638133372,0,10.9928508202641,20.1214161224657,1.27373899324964,18.5563974213889,17.6001641790698,6.87278266985014,4.08757797788625,9.28400011426286,40.7574754205554,57.5246368210588,4.72613515466864,344.749015296009,216.993122536869,184.06666045355,24.9435093399307,112.342817538512,275.144580792226,47.1291017929621,2.59464258074838,0,1785.4734427292,10357.2002964684,275.064885876145,24.1248560523305,10327.259794864,752.599078184015,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
[0,0,0,25.4700835937914,0,0,0,6.07207278731289,0,0,3.31962641476931,0,0,1.68683897924258,0,7.27325731575913,18.0601094260167,0,8.41304092427828,8.43788983043652,3.01086535000567,1.62639030570521,3.64737619857643,20.398072064656,26.8721781103276,2.1044079798116,150.184134115723,78.4714081290717,88.2546798629507,14.2056266854937,35.3417801343684,104.14356724112,20.1107016508674,1.70962366148159,0,547.816523698219,13332.7827736006,233.078335265235,15.1090636177579,6408.66464680692,541.926397701497,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
[0,0,0,9.24771075280953,0,0,0,1.89725777098078,0,0,1.06635293998775,0,0,0,0,1.50420639816105,3.01374787459396,0,2.44149440150925,2.39855358498714,0,0,1.13161210853881,5.19075913723106,6.54943980934584,0,46.8234499049458,25.0889920963389,30.4035317645156,3.12719972976338,22.9915115478888,56.1439920980316,7.09008519486679,0,0,201.613913277701,1276.90065400267,71.9415930824635,3.15269528491642,1294.56377956932,101.548945179655,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1.31746661921206,0,1.07394990278283,0,0,1.7164317660162,0,0,0,4.77132273162018,33.9590867377884,1.44960056767518,0,35.2916641297388,2.83255558789744,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
[0,0,0,23.772508264489,0,0,0,4.77024595187485,0,0,4.0673936867117,0,0,1.38902656079672,0,5.02803656547773,9.60662289369897,0,9.50630696310009,9.62466273363904,3.64946650373819,2.4245842322678,3.92447706926797,20.7518226954557,20.1270790283145,2.09645032815434,179.055229410672,93.2623190379586,110.525498084289,21.2194080781276,57.6834243669262,141.172303862202,19.3526426464789,1.1116456996511,0,520.287318004167,3725.46166016631,163.892885741513,17.5773619645085,6262.42397178447,533.59303336719,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],
[0,0,0,1.30272638369058,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,8.52592562216632,4.08481909101864,4.85115595628409,0,3.34797999772399,8.19956446683992,1.07398131856816,0,0,24.9881226157992,170.105287505245,8.99390490749164,0,219.617048987975,20.8039506351505,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],


];

var chord = d3.layout.chord()
	.padding(.02)
	.sortSubgroups(d3.descending) //sort the chords inside an arc from high to low
	.sortChords(d3.descending) //which chord should be shown on top when chords cross. Now the biggest chord is at the bottom
	.matrix(matrix);

var arc = d3.svg.arc()
	.innerRadius(innerRadius)
	.outerRadius(outerRadius);

var path = d3.svg.chord()
	.radius(innerRadius);
	
var fill = d3.scale.ordinal()
    .domain(d3.range(Names.length))
    .range(["#9fe901","#f9fd01","#fb31dd","#7701fd","#01e8fd"]);

////////////////////////////////////////////////////////////
//////////////////// Draw outer Arcs ///////////////////////
////////////////////////////////////////////////////////////

var g = wrapper.selectAll("g.group")
	.data(chord.groups)
	.enter().append("g")
	.attr("class", "group");;

g.append("path")
	.style("stroke", function(d) { return fill(d.index); })
	.style("fill", function(d) { return fill(d.index); })
	.attr("d", arc);

////////////////////////////////////////////////////////////
////////////////////// Append Names ////////////////////////
////////////////////////////////////////////////////////////

g.append("text")
	.each(function(d) { d.angle = ((d.startAngle + d.endAngle) / 2);})
	.attr("dy", ".35em")
	.attr("class", "titles")
	.attr("text-anchor", function(d) { return d.angle > Math.PI ? "end" : null; })
	.attr("transform", function(d,i) { 
		var c = arc.centroid(d);
		return "rotate(" + (d.angle * 180 / Math.PI - 90) + ")"
		+ "translate(" + (innerRadius + 27) + ")"
		+ (d.angle > Math.PI ? "rotate(180)" : "")
	})
	.text(function(d,i) { return Names[i]; });

//+ "translate(" + (innerRadius + 55) + ")"

////////////////////////////////////////////////////////////
//////////////////// Draw inner chords /////////////////////
////////////////////////////////////////////////////////////
 
var colors = ["#3fcf73","#ead63d","#01e8fd","#fc2f2f","#843fcf"];
var chords = wrapper.selectAll("path.chord")
	.data(chord.chords)
	.enter().append("path")
	.attr("class", "chord")
	.style("stroke", "none")
	.style("fill", function(d,i) { return fill(d.target.index); })
	.style("opacity", opacityDefault)
	.attr("d", path);	

////////////////////////////////////////////////////////////
///////////////////////// Tooltip //////////////////////////
////////////////////////////////////////////////////////////

//Arcs
g.append("title")	
	.text(function(d, i) {return Math.round(d.value) + " total input in " + Names[i];});
	
//Chords
chords.append("title")
	.text(function(d) {
		return [Math.round(d.source.value), " goods and service to ", Names[d.target.index], " from ", Names[d.source.index]].join(""); 
	});