first test web interface d3js plot

2024-01-13 23:13:11 +01:00
parent f298da7ac5
commit c6a18d84b0
3 changed files with 138 additions and 0 deletions
--- a/web/test.html
+++ b/web/test.html
@ -0,0 +1,116 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+
+<!-- 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>
+
+<script>
+
+// set the dimensions and margins of the graph
+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")
+    .attr("width", width + margin.left + margin.right)
+    .attr("height", height + margin.top + margin.bottom)
+  .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('$', ''))
+    }
+}).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, ${height})`)
+      .call(d3.axisBottom(x));
+
+    // Add Y axis
+    // Get the extent of the data values
+    const valueExtent = d3.extent(data, d => d.value);
+
+    // Extend the domain by 5 units on each side
+    const extendedDomain = [valueExtent[0] - 5, valueExtent[1] + 5];
+
+    // Create the y-scale with the extended domain
+    const y = d3.scaleLinear()
+    .domain(extendedDomain)
+    .range([height, 0]);
+    svg.append("g")
+      .call(d3.axisLeft(y));
+
+    // Add the line
+    svg.append("path")
+      .datum(data)
+      .attr("fill", "none")
+      .attr("stroke", "black")
+      .attr("stroke-width", 1.5)
+      .attr("d", d3.line()
+        .curve(d3.curveBasis) // Just add that to have a curve instead of segments
+        .x(d => x(d.date))
+        .y(d => y(d.value))
+        )
+
+    // create a tooltip
+    const Tooltip = d3.select("#my_dataviz")
+      .append("div")
+      .style("opacity", 0)
+      .attr("class", "tooltip")
+      .style("background-color", "white")
+      .style("border", "solid")
+      .style("border-width", "2px")
+      .style("border-radius", "5px")
+      .style("padding", "5px")
+
+      // Three function that change the tooltip when user hover / move / leave a cell
+      const mouseover = function(event,d) {
+        Tooltip
+          .style("opacity", 1)
+      }
+      const mousemove = function(event,d) {
+        Tooltip
+          .html("Exact value: " + d.value)
+          .style("left", `${event.layerX+10}px`)
+          .style("top", `${event.layerY}px`)
+      }
+      const mouseleave = function(event,d) {
+        Tooltip
+          .style("opacity", 0)
+      }
+
+
+
+    // 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)
+})
+</script>