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angular-d3map.js
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angular-d3map.js
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(function(){
'use strict';
angular.module('d3map', [])
.directive('d3map', function(){
return {
restrict: 'E',
scope: {
mapData: '=',
pointData: '=',
options: '='
},
link: function postLink(scope, element, attrs){
var defaultOptions = {
width: 960,
height: 600,
projection: 'mercator',
scale: 9500, // default 150
centerLat: 46.801111,
centerLon: 8.226667,
slider: true,
sliderPos: 'top',
frameLength: 500,
legend: false,
annotate: true,
probe: true
};
scope._opt = angular.extend(defaultOptions, scope.options);
configMap();
buildHTML();
window.onresize = resize;
function configMap(){
scope.projection = d3.geo.mercator()
.scale(scope._opt.scale)
.center([scope._opt.centerLon, scope._opt.centerLat]);
scope.path = d3.geo.path()
.projection(scope.projection);
}
function buildHTML(){
/*
Structure:
----------
d3mapContainer
- sliderContainer
-- sliderLabel
-- sliderButton
-- sliderBar
- mapContainer
-- svgCanvas
--- legend
--- mapGroup
---- map
---- points
--- probe
*/
scope.d3mapContainer = d3.select(element[0]).append('div')
.attr('id', 'd3map-container');
// Slider
scope.sliderContainer = scope.d3mapContainer.append('div')
.attr('id', 'slider-container');
// Map
scope.mapContainer = scope.d3mapContainer.append('div')
.attr('id', 'map-container');
scope.svgCanvas = scope.mapContainer.append("svg")
.attr("width", scope._opt.width)
.attr("height", scope._opt.height);
scope.legend = scope.svgCanvas.append("g")
.attr("id", "legend");
scope.mapGroup = scope.svgCanvas.append("g")
.attr("id", "map_group");
scope.map = scope.mapGroup.append("g")
.attr("id", "map");
scope.points = scope.mapGroup.append("g")
.attr("id", "points");
scope.mapProbe = scope.mapContainer.append("div")
.attr("id", "probe");
}
function circleSize(d){
return Math.sqrt(.02 * Math.abs(d));
}
function drawMap(){
scope.map.remove();
scope.map = scope.mapGroup.append("g")
.attr("id", "map");
// country
scope.map.append("g")
.attr("id", "countries")
.selectAll()
.data(topojson.feature(scope._mapData, scope._mapData.objects.country).features)
.enter().append("path")
.attr("class", "country")
.attr("d", scope.path)
.attr("id", function(d){
//console.log(d.id);
return "id-" + d.id;
});
// lakes
scope.map.append("g")
.attr("id", "lakes")
.selectAll()
.data(topojson.feature(scope._mapData, scope._mapData.objects.lakes).features)
.enter().append("path")
.attr("class", "lake")
.attr("d", scope.path)
.attr("id", function(d){
//console.log(d.id);
return "id-" + d.id;
});
// cantons
scope.map.append("g")
.attr("id", "cantons")
.selectAll()
.data(topojson.feature(scope._mapData, scope._mapData.objects.cantons).features)
.enter().append("path")
.attr("class", "canton")
.attr("d", scope.path)
.attr("id", function(d){
//console.log(d.id);
return "id-" + d.id;
});
//.on("mouseover", function(d){
// console.log(d.id);
// d3.select(this).attr("class","canton-hover")
//})
//.on("mouseout", function(d){
// console.log(d.id);
// d3.select(this).attr("class","canton")
//});
// country boundries
scope.map.append("path")
.datum(topojson.feature(scope._mapData, scope._mapData.objects.country))
.attr("class", "country-boundaries")
.attr("d", scope.path);
// canton boundries
scope.map.append("path")
.datum(topojson.mesh(scope._mapData, scope._mapData.objects.cantons, function(a, b){
return a !== b;
}))
.attr("class", "canton-boundaries")
.attr("d", scope.path);
}
function drawPoints(){
scope.points.remove();
scope.points = scope.mapGroup.append("g")
.attr("id", "points");
angular.forEach(scope._pointData.points, function(point, i){
var projected;
var data_obj;
if(point.type == 'feature'){
var feature_obj = scope.map.select('#'+point.featureClass)
.selectAll("path#id-"+point.featureId);
if(feature_obj.length == 0){
return
}
projected = scope.path.centroid(feature_obj[0][0].__data__);
//projected[0] -= 10;
projected[1] += 14; // offset for text
data_obj = scope.points.append("path")
.datum(point)
.attr("d", feature_obj.attr("d"))
.attr("class", "feature");
}
else{ //if(point.type == 'location')
projected = scope.projection([point.lon, point.lat]);
data_obj = scope.points.append("circle")
.datum(point)
.attr("cx", projected[0])
.attr("cy", projected[1])
.attr("r", 1)
.attr("vector-effect", "non-scaling-stroke");
}
// make point clickable
if(point.link){
data_obj.on("click", function(d){
window.location = d.link;
});
}
// show probe
if(scope._opt.probe){
data_obj
.on("mouseover", function(d){
if(scope.currentFrame in d.values){
d3.select(this).style("opacity", 0.3)
}
})
.on("mousemove", function(d){
if(scope.currentFrame in d.values){
scope.mapProbeData = d;
setMapProbeContent();
scope.mapProbe
.style({
"display": "block",
"top": (d3.event.pageY - scope.mapContainer.property("offsetParent").offsetTop - 80) + "px",
"left": (d3.event.pageX - scope.mapContainer.property("offsetParent").offsetLeft + 10) + "px"
})
}
})
.on("mouseout", function(){
scope.mapProbeData = null;
scope.mapProbe.style("display", "none");
d3.select(this).style("opacity", null)
});
}
// annotate value
if(scope._opt.annotate){
var annotation = scope.points.append("g")
.datum(point)
.attr("class", "annotation")
.attr("transform", "translate(" + projected + ")");
annotation.append("rect")
.attr("width", 0)
.attr("height", 0)
.attr("rx", 3)
.attr("ry", 3)
.attr("fill", "white")
.attr("stroke", "black")
.attr("stroke-width", 1);
annotation.append("text")
.attr("font-size", "12px")
.attr("text-anchor", "middle")
.attr("x", 0) //10 if not anchor middle
.attr("y", -14);
}
});
// init circles to first value
scope.currentFrame = scope._pointData.range.min;
drawPointsForValue(false);
}
function createSlider(){
if(scope._opt.slider == false){
return;
}
var before = null;
if(scope._opt.sliderPos == 'top'){
before = '#map-container';
}
scope.sliderContainer.remove();
scope.sliderContainer = scope.d3mapContainer.insert('div', before)
.attr('id', 'slider-container');
scope.sliderContainer
.append('div')
.attr('id', 'slider-label')
.append('p')
.attr('id', 'label-text');
scope.sliderContainer
.append('div')
.attr('id', 'slider-button');
scope.sliderContainer
.append('div')
.attr('id', 'slider-bar');
scope.rangeScale = d3.scale.linear()
.domain([scope._pointData.range.min, scope._pointData.range.max])
.range([0, scope._opt.width - 260]);
createSliderBar();
configSliderButton();
setSliderLabel();
}
function configSliderButton(){
scope.isPlaying = false;
d3.select("#slider-button")
.attr("title", "Play animation")
.on("click", function(){
if(!scope.isPlaying){
scope.isPlaying = true;
d3.select(this).classed("pause", true).attr("title", "Pause animation");
animate();
}
else{
scope.isPlaying = false;
d3.select(this).classed("pause", false).attr("title", "Play animation");
clearInterval(scope.interval);
}
});
}
function getPointValue(data, index){
var iStr = index.toString();
if(typeof data.values[iStr] === 'undefined'){
return 0;
}
else{
return data.values[iStr];
}
}
function getPointLabel(index){
var iStr = index.toString();
if(typeof scope._pointData.labels[iStr] === 'undefined'){
return "";
}
else{
return scope._pointData.labels[iStr];
}
}
function drawPointsForValue(intertween){
var index = scope.currentFrame;
var circle = scope.points.selectAll("circle");
if(scope._opt.annotate){
var annotation = scope.points.selectAll(".annotation");
annotation.each(function(d, i){
var value = getPointValue(d, index);
var label = getPointLabel(index);
var text = d3.select(this).select("text");
text.text(value == 0 ? "" : label + ": " + value);
var box = text.node().getBBox();
if(box.width > 0){
d3.select(this).select("rect")
.attr("x", box.x - 5)
.attr("y", box.y - 3)
.attr("width", box.width + 10)
.attr("height", box.height + 6);
}
else{
d3.select(this).select("rect")
.attr("width", 0)
.attr("height", 0);
}
});
}
if(intertween){
circle
.transition()
.ease("linear")
.duration(scope._opt.frameLength)
.attr("r", function(d){
return circleSize(getPointValue(d, index));
})
.attr("class", function(d){
return getPointValue(d, index) - getPointValue(d, index-1) >= 0 ? "gain" : "loss";
});
// fill gives a smoother transition between colors
//.style("fill", function(d){
// return getPointValue(d, index) - getPointValue(d, lastx) >= 0 ? "#67cfa9" : "#ef8a62";
//});
}
else{
circle
.attr("r", function(d){
return circleSize(getPointValue(d, index))
})
.attr("class", function(d){
return getPointValue(d, index) - getPointValue(d, index-1) >= 0 ? "gain" : "loss";
});
}
setSliderLabel();
if(scope.mapProbeData){
setMapProbeContent();
}
}
function setSliderLabel(){
if(scope.currentFrame && scope.slider){
var iStr = scope.currentFrame.toString();
var html = "<span>" + scope._pointData.labels[iStr] + "</span> ";
scope.sliderContainer.select("#slider-label p#label-text").html(html);
}
}
function animate(){
scope.interval = setInterval(function(){
var rmin = scope._pointData.range.min;
var rmax = scope._pointData.range.max;
scope.currentFrame++;
if(scope.currentFrame == rmax + 1){
scope.currentFrame = rmin;
}
scope.slider.value(scope.currentFrame);
drawPointsForValue(true);
if(scope.currentFrame == rmax){
scope.isPlaying = false;
d3.select("#slider-button").classed("pause", false).attr("title", "Play animation");
clearInterval(scope.interval);
}
}, scope._opt.frameLength);
}
function createSliderBar(){
scope.sliderContainer.select("#slider-bar").remove();
var sliderBar = scope.sliderContainer.append("div")
.attr("id", "slider-bar")
.style("width", scope.rangeScale.range()[1] + "px");
var val = scope.slider ? scope.slider.value() : 0;
var sliderScale = d3.scale.linear()
.domain([scope._pointData.range.min, scope._pointData.range.max]);
scope.slider = d3.slider()
.scale(sliderScale)
.step(1)
.on("slide", function(event, value){
if(scope.isPlaying){
clearInterval(scope.interval);
}
scope.currentFrame = value;
drawPointsForValue(d3.event.type != "drag");
})
.on("slideend", function(){
if(scope.isPlaying){
animate();
}
//sliderBar.on("mousemove", sliderProbe)
})
.animate(scope._opt.frameLength)
.value(val);
sliderBar.call(scope.slider);
sliderBar.select("a").on("mousemove", function(){
d3.event.stopPropagation();
});
// Add an axis
//var sliderAxis = d3.svg.axis();
// .scale( scope.rangeScale )
// .tickValues( scope.rangeScale.ticks(orderedColumns.length).filter(function(d,i){
// // ticks only for beginning of each year, plus first and last
// return d.getMonth() == 0 || i == 0 || i == orderedColumns.length-1;
// }))
// .tickFormat(function(d){
// // abbreviated year for most, full month/year for the ends
// if ( d.getMonth() == 0 ) return "'" + d.getFullYear().toString().substr(2);
// return months[d.getMonth()] + " " + d.getFullYear();
// })
// .tickSize(10)
//d3.select("#axis").remove();
//slider_container
// .append("svg")
// .attr("id", "axis")
// .attr("width", scope.rangeScale.range()[1] + sliderMargin * 2)
// .attr("height", 25)
// .append("g")
// .attr("transform", "translate(" + (sliderMargin + 1) + ",0)");
//// .call(sliderAxis);
//d3.select("#axis > g g:first-child text").attr("text-anchor", "end").style("text-anchor", "end");
//d3.select("#axis > g g:last-of-type text").attr("text-anchor", "start").style("text-anchor", "start");
}
function createLegend(){
if(scope._opt.legend == false){
return;
}
var tran_leg = scope._opt.width - 180;
scope.legend.remove();
scope.legend = scope.svgCanvas.append("g")
.attr("id", "legend")
.attr("transform", "translate(" + tran_leg + ")");
scope.legend.append("circle").attr("class", "gain").attr("r", 5).attr("cx", 5).attr("cy", 10);
scope.legend.append("circle").attr("class", "loss").attr("r", 5).attr("cx", 5).attr("cy", 30);
scope.legend.append("text").text("Gaining").attr("x", 15).attr("y", 13);
scope.legend.append("text").text("Loosing").attr("x", 15).attr("y", 33);
var sizes = [10000, 100000]; //pulled out the 250000
for(var i=0; i < sizes.length; i++){
scope.legend.append("circle")
.attr("r", circleSize(sizes[i]))
.attr("cx", 80 + circleSize(sizes[sizes.length - 1]))
.attr("cy", 2 * circleSize(sizes[sizes.length - 1]) - circleSize(sizes[i]))
.attr("vector-effect", "non-scaling-stroke");
scope.legend.append("text")
.text((sizes[i] / 1000) + "K")
.attr("text-anchor", "middle")
.attr("x", 80 + circleSize(sizes[sizes.length - 1]))
.attr("y", 2 * ( circleSize(sizes[sizes.length - 1]) - circleSize(sizes[i]) ) + 5)
.attr("dy", 13)
}
}
function setMapProbeContent(){
var val = scope.mapProbeData.values[scope.currentFrame];
var html = "<strong>" + scope.mapProbeData.name + "</strong><br/>" +
d3.format(",")(Math.abs(val)) + " " + ( val < 0 ? "lost" : " count" ) + "<br/>" +
"<span>" + scope._pointData.labels[scope.currentFrame] + "</span>";
scope.mapProbe.html(html);
}
function sliderProbe(){
var d = scope.rangeScale.invert(( d3.mouse(this)[0] ));
// d3.select("#slider-probe")
// .style( "left", d3.mouse(this)[0] + sliderMargin + "px" )
// .style("display","block")
// .select("p")
// .html( months[d.getMonth()] + " " + d.getFullYear() )
}
function resize(){
var w = scope.d3mapContainer.node().offsetWidth,
h = window.innerHeight - 80;
//var scale = Math.max(1, Math.min(w / scope._opt.width, h / scope._opt.height));
//var scale = Math.min(w / scope._opt.width, h / scope._opt.height);
var scale = w / scope._opt.width;
//var tran_x = Math.max(0, (w - scope._opt.width)/2);
//var tran_y = Math.max(0, (h - scope._opt.height)/2);
var tran_leg = scope._opt.width * scale - 180;
scope.svgCanvas
.attr("width", scope._opt.width * scale)
.attr("height", scope._opt.height * scale);
//svg.attr("transform", "scale(" + scale + "," + scale + ")");
scope.mapContainer.style("width", scope._opt.width * scale + "px");
scope.sliderContainer.style("width", scope._opt.width * scale + "px");
scope.mapGroup.attr('transform', 'translate(' + 0 + ' ' + 0 + ') scale(' + scale + ')');
scope.legend.attr('transform', 'translate(' + tran_leg + ')');
if(scope._opt.slider == true){
scope.rangeScale.range([0, scope._opt.width * scale - 260]); // + w - scope._opt.width]);
createSliderBar();
}
}
function refreshAll(){
configMap();
refreshMap();
}
function refreshMap(){
drawMap();
refreshPoints()
}
function refreshPoints(){
drawPoints();
createLegend();
createSlider();
resize();
}
function getMap(mapFile){
d3.json(mapFile, function(error, mapData){
scope._mapData = mapData;
refreshMap();
});
}
function getPoints(pointsFile){
d3.json(pointsFile, function(pointData){
scope._pointData = pointData;
refreshPoints();
});
}
// Watch on options changing
scope.$watch('options', function(newOptions, oldOptions){
if(newOptions !== oldOptions){
scope._opt = angular.extend(defaultOptions, newOptions);
refreshAll();
}
}, true);
// Watching on data changing
scope.$watch('mapData', function(data){
if(typeof data == 'string'){
getMap(data)
}
else if(typeof data == 'object'){
scope._mapData = data;
refreshMap();
}
}, true);
scope.$watch('pointData', function(data){
if(typeof data == 'string'){
getPoints(data)
}
else if(typeof data == 'object'){
scope._pointData = data;
refreshPoints();
}
}, true);
}
};
});
})();