From 96c529c6f3a98ca06ad81e40a8ec71e3220ab9fe Mon Sep 17 00:00:00 2001
From: Sam Hadow <sam.hadow@inbox.lv>
Date: Sun, 14 Jan 2024 01:01:42 +0100
Subject: [PATCH] 1 graph per item in d3js

---
 web/test.html | 306 +++++++++++++++++++++++++++++++++++++-------------
 1 file changed, 225 insertions(+), 81 deletions(-)

diff --git a/web/test.html b/web/test.html
index 7310b94..d3f8618 100644
--- a/web/test.html
+++ b/web/test.html
@@ -4,113 +4,257 @@
 <!-- Load d3.js -->
 <script src="https://d3js.org/d3.v6.js"></script>
 
-<!-- Create a div where the graph will take place -->
-<div id="my_dataviz"></div>
+<!-- Create a div where the graphs will take place -->
+<div id="graphs"></div>
 
 <script>
-
 // set the dimensions and margins of the graph
-const margin = {top: 10, right: 30, bottom: 30, left: 60},
+const margin = {
+        top: 10,
+        right: 30,
+        bottom: 30,
+        left: 60
+    },
     width = 1600 - margin.left - margin.right,
     height = 400 - margin.top - margin.bottom;
 
 // append the svg object to the body of the page
 const svg = d3.select("#my_dataviz")
-  .append("svg")
+    .append("svg")
     .attr("width", width + margin.left + margin.right)
     .attr("height", height + margin.top + margin.bottom)
-  .append("g")
-    .attr("transform",`translate(${margin.left},${margin.top})`);
+    .append("g")
+    .attr("transform", `translate(${margin.left},${margin.top})`);
 
 d3.csv('http://127.0.0.1/output.csv', d => {
-    console.log(d.h_timestamp);
-    console.log(d3.timeParse("%Y-%m-%d %H:%M:%S.%L")(d.h_timestamp));
-    //2024-01-13 21:51:45.581863
     return {
         date: new Date(d.h_timestamp.replace(' ', 'T')).getTime(),
-        value: parseFloat(d.price.replace('$', ''))
+        value: parseFloat(d.price.replace('$', '')),
+        skuid: d.skuid
     }
 }).then(function(data) {
-    console.log(data);
 
-    // Add X axis --> it is a date format
     const x = d3.scaleTime()
-      .domain(d3.extent(data, d => d.date))
-      .range([ 0, width ]);
-    svg.append("g")
-      .attr("transform", `translate(0, ${height})`)
-      .call(d3.axisBottom(x));
+        .domain(d3.extent(data, d => d.date))
+        .range([0, width]);
 
-    // Add Y axis
-    // Get the extent of the data values
-    const valueExtent = d3.extent(data, d => d.value);
+    // 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");
 
-    // Extend the domain by 5 units on each side
-    const extendedDomain = [valueExtent[0] - 5, valueExtent[1] + 5];
+    // 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("transform", `translate(${margin.left},${margin.top})`);
 
-    // Create the y-scale with the extended domain
-    const y = d3.scaleLinear()
-    .domain(extendedDomain)
-    .range([height, 0]);
-    svg.append("g")
-      .call(d3.axisLeft(y));
+    var dict_xAxis = {};
+    // Plot each curve
+    svgs.each(function(key) {
+        const dataSubset = nestedData.get(key);
 
-    // Add the line
-    svg.append("path")
-      .datum(data)
-      .attr("fill", "none")
-      .attr("stroke", "black")
-      .attr("stroke-width", 1.5)
-      .attr("d", d3.line()
-        .curve(d3.curveBasis) // Just add that to have a curve instead of segments
-        .x(d => x(d.date))
-        .y(d => y(d.value))
-        )
+        const y = d3.scaleLinear()
+            .domain([d3.min(dataSubset, d => d.value) - 1, d3.max(dataSubset, d => d.value) + 1])
+            .range([height, 0]);
 
-    // create a tooltip
-    const Tooltip = d3.select("#my_dataviz")
-      .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")
+        const svg = d3.select(this);
 
-      // Three function that change the tooltip when user hover / move / leave a cell
-      const mouseover = function(event,d) {
-        Tooltip
-          .style("opacity", 1)
-      }
-      const mousemove = function(event,d) {
-        Tooltip
-          .html("Exact value: " + d.value)
-          .style("left", `${event.layerX+10}px`)
-          .style("top", `${event.layerY}px`)
-      }
-      const mouseleave = function(event,d) {
-        Tooltip
-          .style("opacity", 0)
-      }
+        dict_xAxis[dataSubset] = svg.append("g")
+            .attr("transform", `translate(0, ${height})`)
+            .call(d3.axisBottom(x));
+
+        svg.append("g")
+            .call(d3.axisLeft(y));
+
+        svg.append("path")
+            .datum(dataSubset)
+            .attr("fill", "none")
+            .attr("stroke", "black")
+            .attr("stroke-width", 1.5)
+            .attr("d", d3.line()
+                .x(d => x(d.date))
+                .y(d => y(d.value))
+            );
+
+        // Add the points
+        svg
+            .append("g")
+            .selectAll("dot")
+            .data(dataSubset)
+            .join("circle")
+            .attr("class", "myCircle")
+            .attr("cx", d => x(d.date))
+            .attr("cy", d => y(d.value))
+            .attr("r", 8)
+            .attr("stroke", "#69b3a2")
+            .attr("stroke-width", 3)
+            .attr("fill", "white");
+
+        // interaction
+        // Create a tooltip for each graph
+        const Tooltip = d3.select("body").append("div")
+            .style("opacity", 0)
+            .attr("class", "tooltip")
+            .style("background-color", "white")
+            .style("border", "solid")
+            .style("border-width", "2px")
+            .style("border-radius", "5px")
+            .style("padding", "5px");
+
+        // Interaction functions for each graph
+        const mouseover = function(event, d) {
+            Tooltip.style("opacity", 1);
+        };
+
+        const mousemove = function(event, d) {
+            Tooltip
+                .html("Exact value: " + d.value)
+                .style("left", `${event.pageX + 10}px`)
+                .style("top", `${event.pageY}px`);
+        };
+
+        const mouseleave = function(event, d) {
+            Tooltip.style("opacity", 0);
+        };
+
+        // Add interaction to the points for each graph
+        svg.append("g")
+            .selectAll("dot")
+            .data(dataSubset)
+            .join("circle")
+            .attr("class", "myCircle")
+            .attr("cx", d => x(d.date))
+            .attr("cy", d => y(d.value))
+            .attr("r", 8)
+            .attr("stroke", "#69b3a2")
+            .attr("stroke-width", 3)
+            .attr("fill", "white")
+            .on("mouseover", mouseover)
+            .on("mousemove", mousemove)
+            .on("mouseleave", mouseleave);
 
 
 
-    // Add the points
-    svg
-      .append("g")
-      .selectAll("dot")
-      .data(data)
-      .join("circle")
-        .attr("class", "myCircle")
-        .attr("cx", d => x(d.date))
-        .attr("cy", d => y(d.value))
-        .attr("r", 8)
-        .attr("stroke", "#69b3a2")
-        .attr("stroke-width", 3)
-        .attr("fill", "white")
-        .on("mouseover", mouseover)
-        .on("mousemove", mousemove)
-        .on("mouseleave", mouseleave)
+    //     // zoom
+    //     // Add a clipPath for each graph
+    //     var clip = svg.append("defs").append("svg:clipPath")
+    //         .attr("id", "clip-" + key)
+    //         .append("svg:rect")
+    //         .attr("width", width)
+    //         .attr("height", height)
+    //         .attr("x", 0)
+    //         .attr("y", 0);
+    //
+    //     // Create zoom behavior for each graph
+    //     var zoom = d3.zoom()
+    //         .scaleExtent([1, Infinity])
+    //         .translateExtent([
+    //             [0, 0],
+    //             [width, height]
+    //         ])
+    //         .extent([
+    //             [0, 0],
+    //             [width, height]
+    //         ])
+    //         .on("zoom", updateChart);
+    //
+    //     // Add the line variable: where both the line and the brush take place
+    //     var line = svg.append('g')
+    //         .attr("clip-path", "url(#clip-" + key + ")")
+    //         .call(zoom);
+    //
+    //     // Create a brush for each graph
+    //     var brush = d3.brushX()
+    //         .extent([
+    //             [0, 0],
+    //             [width, height]
+    //         ])
+    //         .on("end", updateChart);
+    //
+    //     // Add the line
+    //     line.append("path")
+    //         .datum(dataSubset)
+    //         .attr("class", "line") // I add the class line to be able to modify this line later on.
+    //         .attr("fill", "none")
+    //         .attr("stroke", "steelblue")
+    //         .attr("stroke-width", 1.5)
+    //         .attr("d", d3.line()
+    //             .x(function(d) {
+    //                 return x(d.date)
+    //             })
+    //             .y(function(d) {
+    //                 return y(d.value)
+    //             })
+    //         );
+    //
+    //     // Add the brushing
+    //     line.append("g")
+    //         .attr("class", "brush")
+    //         .call(brush);
+    //
+    //     // A function that set idleTimeOut to null
+    //     let idleTimeout
+    //
+    //     function idled() {
+    //         idleTimeout = null;
+    //     }
+    //
+    //     // A function that update the chart for given boundaries
+    //     function updateChart(event, d) {
+    //         // What are the selected boundaries?
+    //         var extent = event.selection
+    //
+    //         // If no selection, back to initial coordinate. Otherwise, update X axis domain
+    //         if (!extent) {
+    //             x.domain([4, 8]);
+    //         } else {
+    //             x.domain([x.invert(extent[0]), x.invert(extent[1])]);
+    //             line.select(".brush").call(brush.move, null); // This removes the grey brush area as soon as the selection has been done
+    //         }
+    //
+    //         // Update axis and line position
+    //         dict_xAxis[dataSubset].transition().duration(1000).call(d3.axisBottom(x));
+    //         line
+    //             .select('.line')
+    //             .transition()
+    //             .duration(1000)
+    //             .attr("d", d3.line()
+    //                 .x(function(d) {
+    //                     return x(d.date)
+    //                 })
+    //                 .y(function(d) {
+    //                     return y(d.value)
+    //                 })
+    //             );
+    //     }
+    //
+    //     // If user double click, reinitialize the chart
+    //     svg.on("dblclick", function() {
+    //         x.domain(d3.extent(data, function(d) {
+    //             return d.date;
+    //         }))
+    //         dict_xAxis[dataSubset].transition().call(d3.axisBottom(x));
+    //         line
+    //             .select('.line')
+    //             .transition()
+    //             .attr("d", d3.line()
+    //                 .x(function(d) {
+    //                     return x(d.date)
+    //                 })
+    //                 .y(function(d) {
+    //                     return y(d.value)
+    //                 })
+    //             );
+    //     });
+    //
+    //
+    });
+
 })
 </script>