UW iSchool Course INFO 474: focused on designing and building visualizations to better understand and communicate about pressing issues.
// Set a fixed width for the chart
fixed_width = 500;
// Creating an x scale that *isn't* tied to screen width
x = d3.scaleLinear()
.domain([0, 1])
.range([margin.left, fixed_width - margin.right])
fixed_width_chart = {
// Set the width using the fixed width
const svg = d3.create("svg")
.attr("width", fixed_width)
.attr("height", height)
svg.append("g")
.call(xAxis);
svg.append("g")
.call(yAxis);
svg.selectAll("circle")
.data(data)
.join("circle")
.attr("cx", d => x(d.x))
.attr("cy", d => y(d.y))
.attr("r", 10)
return svg.node();
}
viewbox_chart = {
const svg = d3.create("svg")
.attr("viewBox", [0, 0, fixed_width, height])
svg.append("g")
.call(xAxis);
svg.append("g")
.call(yAxis);
svg.selectAll("circle")
.data(data)
.join("circle")
.attr("cx", d => x(d.x))
.attr("cy", d => y(d.y))
.attr("r", 10)
return svg.node();
}
// Creating an x scale that *is* tied to screen width
x_screen = d3.scaleLinear()
.domain([0, 1])
.range([margin.left, width - margin.right]) // note the use of `width` here!
using_varying_scale = {
const svg = d3.create("svg")
.attr("viewBox", [0, 0, width, height]) // works the same if you set width and height here
// .attr("width", width)
// .attr("height", height)
svg.append("g")
.call(xAxis_screen);
svg.append("g")
.call(yAxis);
svg.selectAll("circle")
.data(data)
.join("circle")
.attr("cx", d => x_screen(d.x))
.attr("cy", d => y(d.y))
.attr("r", 10)
return svg.node();
}
y = d3.scaleLinear()
.domain([0, 1])
.range([height - margin.bottom, margin.top])
xAxis = g => g
.attr("transform", `translate(0,${height - margin.bottom})`)
.call(d3.axisBottom(x))
xAxis_screen = g => g
.attr("transform", `translate(0,${height - margin.bottom})`)
.call(d3.axisBottom(x_screen))
yAxis = g => g
.attr("transform", `translate(${margin.left},0)`)
.call(d3.axisLeft(y))
margin = ({top: 20, right: 30, bottom: 30, left: 40})
height = 300
d3 = require("d3@6")
_ = require("lodash")
// Some random numbers to plot
data = _.range(100).map(d => ({x:Math.random(), y:Math.random()}))
import {code_styles} from "@uw-info474/utilities"
code_styles
html`<style>
blockquote {
background-color: #d3d3d363;
padding:10px;
border-radius: 5px;
}
</style>`
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