234 lines
7.9 KiB
JavaScript
234 lines
7.9 KiB
JavaScript
|
|
// fixed height
|
|
const height = 350;
|
|
// set the margins of the graph
|
|
const margin = {
|
|
top: 10,
|
|
right: height,
|
|
bottom: 30,
|
|
left: 30
|
|
};
|
|
// get window width
|
|
const width = window.innerWidth - margin.right - margin.left -10;
|
|
|
|
|
|
// reload page when window is resized
|
|
// (resizes every elements)
|
|
window.onresize = function(){ location.reload(); }
|
|
|
|
d3.csv('http://127.0.0.1/output.csv', d => {
|
|
return {
|
|
date: new Date(d.h_timestamp.replace(' ', 'T')),
|
|
value: parseFloat(d.price.replace('$', '')),
|
|
skuid: d.skuid,
|
|
itemid: d.itemid,
|
|
currency: d.currency
|
|
}
|
|
}).then(function(data) {
|
|
|
|
// Date domain (width)
|
|
const x = d3.scaleTime()
|
|
.domain(d3.extent(data, d => d.date))
|
|
.range([3, width-3]);
|
|
|
|
// Group the data by (itemid, skuid)
|
|
const nestedData = d3.group(data, d => d.skuid);
|
|
// Create a div for each graph
|
|
const graphDivs = d3.select("#graphs")
|
|
.selectAll(".graph-container")
|
|
.data(nestedData.keys())
|
|
.enter().append("div")
|
|
.attr("class", "graph-container");
|
|
|
|
// Append SVG elements to each div
|
|
const svgs = graphDivs.append("svg")
|
|
.attr("width", width + margin.left + margin.right)
|
|
.attr("height", height + margin.top + margin.bottom)
|
|
.append("g")
|
|
.attr('viewBox', `0 0 ${width} ${height}`)
|
|
.attr("transform", `translate(${margin.left},${margin.top})`);
|
|
|
|
var dict_xAxis = {};
|
|
var dict_scatter = {};
|
|
|
|
// plot for each graph
|
|
svgs.each(function(key) {
|
|
const dataSubset = nestedData.get(key);
|
|
const svg = d3.select(this);
|
|
|
|
// context on right side
|
|
// text
|
|
const link = `https://fr.aliexpress.com/item/${dataSubset[0].itemid}.html`;
|
|
// image
|
|
svg.append("image")
|
|
.attr("x", width + margin.right*0.1)
|
|
.attr("y", height*0.1)
|
|
.attr("width", height*0.8)
|
|
.attr("height", height*0.8)
|
|
.attr("xlink:href", "https://en.wikipedia.org/static/images/icons/wikipedia.png") // placeholder picture for now, should be item picture
|
|
.on("click", function() { window.open(link); });
|
|
|
|
// Price domain (height)
|
|
const y = d3.scaleLinear()
|
|
.domain([d3.min(dataSubset, d => d.value) - 1, d3.max(dataSubset, d => d.value) + 1])
|
|
.range([height, 0]);
|
|
|
|
// height axis
|
|
dict_xAxis[key] = svg.append("g")
|
|
.attr("transform", `translate(0, ${height})`)
|
|
.call(d3.axisBottom(x));
|
|
|
|
// width axis
|
|
svg.append("g")
|
|
.call(d3.axisLeft(y));
|
|
|
|
|
|
// clipPath, area drawn
|
|
const clip_line = svg.append("defs").append("svg:clipPath")
|
|
.attr("id", "clip_line")
|
|
.append("svg:rect")
|
|
.attr("width", width )
|
|
.attr("height", height )
|
|
.attr("x", 0)
|
|
.attr("y", 0);
|
|
const clip_dot = svg.append("defs").append("svg:clipPath")
|
|
.attr("id", "clip_dot")
|
|
.append("svg:rect")
|
|
.attr("width", width+10 )
|
|
.attr("height", height )
|
|
.attr("x", -5)
|
|
.attr("y", 0);
|
|
|
|
// lines between dots
|
|
// plotted before dots to stay below them
|
|
svg.append("path")
|
|
.datum(dataSubset)
|
|
.attr("id", "line_path")
|
|
.attr("clip-path", "url(#clip_line)") // bind to clipPath
|
|
.attr("fill", "none")
|
|
.attr("stroke", "black")
|
|
.attr("stroke-width", 1.5)
|
|
.attr("d", d3.line()
|
|
.x(d => x(d.date))
|
|
.y(d => y(d.value))
|
|
);
|
|
|
|
// brushing
|
|
const brush = d3.brushX()
|
|
.extent( [ [0,0], [width,height] ] ) // select whole graph
|
|
.on("end", updateChart) // update graph on brush release
|
|
|
|
// line, area brushed
|
|
const line = svg.append('g')
|
|
.attr("clip-path", "url(#clip_line)")
|
|
|
|
// Add brushing
|
|
line.append("g")
|
|
.attr("class", "brush")
|
|
.call(brush);
|
|
|
|
let idleTimeout
|
|
function idled() { idleTimeout = null; }
|
|
|
|
// update graph on zoom brush release
|
|
function updateChart(event,d) {
|
|
extent = event.selection
|
|
if(!extent){
|
|
if (!idleTimeout) return idleTimeout = setTimeout(idled, 350);
|
|
}else{
|
|
x.domain([ x.invert(extent[0]), x.invert(extent[1]) ]) // new domain is brushing area
|
|
line.select(".brush").call(brush.move, null) // remove brushing area
|
|
}
|
|
// Update axis
|
|
dict_xAxis[key].transition().duration(1000).call(d3.axisBottom(x))
|
|
// Update lines
|
|
svg.selectAll("#line_path")
|
|
.transition()
|
|
.duration(1000)
|
|
.attr("d", d3.line()
|
|
.x(d => x(d.date))
|
|
.y(d => y(d.value))
|
|
);
|
|
// Update dots
|
|
svg.selectAll("circle")
|
|
.data(dataSubset)
|
|
.transition()
|
|
.duration(1000)
|
|
.attr("cx", d => x(d.date))
|
|
}
|
|
|
|
// reset zoom on double click
|
|
svg.on("dblclick",function(){
|
|
x.domain(d3.extent(data, function(d) { return d.date; }))
|
|
// Axis
|
|
dict_xAxis[key].transition().call(d3.axisBottom(x))
|
|
// Lines
|
|
svg.selectAll("#line_path")
|
|
.transition()
|
|
.duration(1000)
|
|
.attr("d", d3.line()
|
|
.x(d => x(d.date))
|
|
.y(d => y(d.value))
|
|
);
|
|
// Dots
|
|
svg.selectAll("circle")
|
|
.data(dataSubset)
|
|
.transition()
|
|
.duration(1000)
|
|
.attr("cx", d => x(d.date))
|
|
});
|
|
|
|
// TOOLTIP
|
|
// tooltip: box with node value
|
|
const Tooltip = d3.select(this.parentNode.parentNode).append("div")
|
|
.style("opacity", 0)
|
|
.attr("class", "tooltip")
|
|
.style("background-color", "white")
|
|
.style("border", "solid")
|
|
.style("border-width", "2px")
|
|
.style("border-radius", "5px")
|
|
.style("padding", "5px")
|
|
.style("position", "absolute");
|
|
|
|
// Interaction functions
|
|
const mouseover = function(event, d) {
|
|
var formatted_date = d.date.toISOString().split('T')[0]
|
|
Tooltip
|
|
.style("opacity", 1)
|
|
.html(formatted_date + "<br />" + d.value + " " + d.currency)
|
|
.style("left", (event.pageX + 10) + "px")
|
|
.style("top", (event.pageY + 10) + "px");
|
|
};
|
|
|
|
const mousemove = function(event) {
|
|
Tooltip
|
|
.style("left", (event.pageX + 10) + "px")
|
|
.style("top", (event.pageY + 10) + "px");
|
|
};
|
|
|
|
const mouseleave = function() {
|
|
Tooltip.style("opacity", 0)
|
|
.style("left", 0 + "px")
|
|
.style("top", 0 + "px"); // send tooltip outside of brushing area
|
|
};
|
|
|
|
// points plot
|
|
dict_scatter[key] = svg.append("g")
|
|
.selectAll("circle")
|
|
.data(dataSubset)
|
|
.enter()
|
|
.append("circle")
|
|
.attr("clip-path", "url(#clip_dot)") // bind to clipPath
|
|
.attr("cx", d => x(d.date))
|
|
.attr("cy", d => y(d.value))
|
|
.attr("r", 5)
|
|
.attr("stroke", "#69b3a2")
|
|
.attr("stroke-width", 3)
|
|
.attr("fill", "white")
|
|
.on("mouseover", mouseover)
|
|
.on("mousemove", mousemove)
|
|
.on("mouseleave", mouseleave);
|
|
});
|
|
|
|
})
|