243 lines
8.6 KiB
JavaScript
243 lines
8.6 KiB
JavaScript
function render_graphs(items, history, show_hidden) {
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// Date domain (width)
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const x = d3.scaleTime()
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.domain(d3.extent(history, d => d.date))
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.range([3, width-3]);
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// Group the data by (uuid)
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const nestedData = d3.group(history, d => d.uuid);
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// Create a div for each graph
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const graphDivs = d3.select("#graphs")
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.selectAll(".graph-container")
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.data(nestedData.keys())
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.enter()
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.filter(key => items[key].show || show_hidden)
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.append("div")
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.attr("class", key => items[key].show ? "graph-container" : "graph-container-hidden");
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// Append SVG elements to each div
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const svgs = graphDivs.append("svg")
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.attr("width", width + margin.left + margin.right)
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.attr("height", height + margin.top + margin.bottom)
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.append("g")
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.attr('viewBox', `0 0 ${width} ${height}`)
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.attr("transform", `translate(${margin.left},${margin.top})`);
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var dict_xAxis = {};
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var dict_scatter = {};
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// plot for each graph
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svgs.each(function(key) {
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if (show_hidden || items[key].show) {
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const dataSubset = nestedData.get(key);
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const svg = d3.select(this);
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// context on right side
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const link = `https://fr.aliexpress.com/item/${items[key].itemid}.html`;
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// image
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svg.append("image")
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.attr("x", width + margin.right*0.1)
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.attr("y", height*0.1)
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.attr("width", height*0.8)
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.attr("height", height*0.8)
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.attr("xlink:href", items[key].image)
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.on("click", function() {
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window.open(link, '_blank', 'noopener,noreferrer');
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});
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// BUTTONS FOR EACH GRAPH
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// buttons to hide or show item
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g_div = this.parentNode.parentNode;
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const hide_button = document.createElement("button");
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if (items[key].show) {
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hide_button.innerHTML = "hide";
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} else {
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hide_button.innerHTML = "show";
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}
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hide_button.className = "btn btn-secondary";
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hide_button.style.position = "relative";
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hide_button.style.top = `-${height+margin.bottom}px`;
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hide_button.style.left = `${margin.left+20}px`;
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hide_button.addEventListener("click", function() {
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toggle_hide(key);
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});
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g_div.append(hide_button);
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// button to delete item
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const del_button = document.createElement("button");
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del_button.innerHTML = "delete";
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del_button.className = "btn btn-secondary";
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del_button.style.position = "relative";
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del_button.style.top = `-${height+margin.bottom}px`;
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del_button.style.left = `${margin.left+30}px`;
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del_button.addEventListener("click", function () {
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confirmationPopup.style.name = key;
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confirmationPopup.style.display = 'flex';
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});
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g_div.append(del_button);
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// Price domain (height)
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const y = d3.scaleLinear()
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.domain([d3.min(dataSubset, d => d.value) - 1, d3.max(dataSubset, d => d.value) + 1])
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.range([height, 0]);
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// height axis
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dict_xAxis[key] = svg.append("g")
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.attr("transform", `translate(0, ${height})`)
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.call(d3.axisBottom(x));
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// width axis
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svg.append("g")
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.call(d3.axisLeft(y));
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// clipPath, area drawn
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const clip_line = svg.append("defs").append("svg:clipPath")
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.attr("id", "clip_line")
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.append("svg:rect")
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.attr("width", width )
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.attr("height", height )
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.attr("x", 0)
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.attr("y", 0);
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const clip_dot = svg.append("defs").append("svg:clipPath")
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.attr("id", "clip_dot")
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.append("svg:rect")
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.attr("width", width+10 )
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.attr("height", height )
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.attr("x", -5)
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.attr("y", 0);
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// lines between dots
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// plotted before dots to stay below them
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svg.append("path")
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.datum(dataSubset)
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.attr("id", "line_path")
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.attr("clip-path", "url(#clip_line)") // bind to clipPath
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.attr("fill", "none")
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.attr("stroke", "black")
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.attr("stroke-width", 1.5)
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.attr("d", d3.line()
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.x(d => x(d.date))
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.y(d => y(d.value))
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);
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// brushing
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const brush = d3.brushX()
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.extent( [ [0,0], [width,height] ] ) // select whole graph
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.on("end", updateChart) // update graph on brush release
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// line, area brushed
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const line = svg.append('g')
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.attr("clip-path", "url(#clip_line)")
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// Add brushing
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line.append("g")
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.attr("class", "brush")
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.call(brush);
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let idleTimeout
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function idled() { idleTimeout = null; }
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// update graph on zoom brush release
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function updateChart(event,d) {
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extent = event.selection
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if(!extent){
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if (!idleTimeout) return idleTimeout = setTimeout(idled, 350);
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}else{
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x.domain([ x.invert(extent[0]), x.invert(extent[1]) ]) // new domain is brushing area
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line.select(".brush").call(brush.move, null) // remove brushing area
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}
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// Update axis
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dict_xAxis[key].transition().duration(1000).call(d3.axisBottom(x))
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// Update lines
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svg.selectAll("#line_path")
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.transition()
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.duration(1000)
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.attr("d", d3.line()
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.x(d => x(d.date))
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.y(d => y(d.value))
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);
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// Update dots
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svg.selectAll("circle")
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.data(dataSubset)
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.transition()
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.duration(1000)
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.attr("cx", d => x(d.date))
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}
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// reset zoom on double click
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svg.on("dblclick",function(){
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x.domain(d3.extent(history, function(d) { return d.date; }))
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// Axis
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dict_xAxis[key].transition().call(d3.axisBottom(x))
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// Lines
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svg.selectAll("#line_path")
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.transition()
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.duration(1000)
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.attr("d", d3.line()
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.x(d => x(d.date))
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.y(d => y(d.value))
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);
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// Dots
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svg.selectAll("circle")
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.data(dataSubset)
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.transition()
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.duration(1000)
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.attr("cx", d => x(d.date))
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});
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// TOOLTIP
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// tooltip: box with node value
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const Tooltip = d3.select(this.parentNode.parentNode).append("div")
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.style("opacity", 0)
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.attr("class", "tooltip")
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.style("background-color", "white")
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.style("border", "solid")
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.style("border-width", "2px")
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.style("border-radius", "5px")
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.style("padding", "5px")
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.style("position", "absolute");
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// Interaction functions
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const mouseover = function(event, d) {
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var formatted_date = d.date.toISOString().split('T')[0]
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Tooltip
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.style("opacity", 1)
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.html(formatted_date + "<br />" + d.value + " " + d.currency)
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.style("left", (event.pageX + 10) + "px")
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.style("top", (event.pageY + 10) + "px");
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};
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const mousemove = function(event) {
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Tooltip
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.style("left", (event.pageX + 10) + "px")
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.style("top", (event.pageY + 10) + "px");
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};
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const mouseleave = function() {
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Tooltip.style("opacity", 0)
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.style("left", 0 + "px")
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.style("top", 0 + "px"); // send tooltip outside of brushing area
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};
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// points plot
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dict_scatter[key] = svg.append("g")
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.selectAll("circle")
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.data(dataSubset)
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.enter()
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.append("circle")
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.attr("clip-path", "url(#clip_dot)") // bind to clipPath
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.attr("cx", d => x(d.date))
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.attr("cy", d => y(d.value))
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.attr("r", 5)
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.attr("stroke", "#69b3a2")
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.attr("stroke-width", 3)
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.attr("fill", "white")
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.on("mouseover", mouseover)
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.on("mousemove", mousemove)
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.on("mouseleave", mouseleave);
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}
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});
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}
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