D3 Selecting a Year on a Line Chart

100%

D3 Selecting a Year on a Line Chart

✓ Published0🌍 Public

Last edited Dec 19, 2019

Created on Dec 18, 2019

An interactive line chart displays UN population estimates and projections from 1950 to 2100 for global regions, with a vertical line marking the currently selected year. Moving the mouse across the chart updates the selected year, repositioning the line and highlighting the population values at that moment. The visualization uses d3.line, d3.scaleTime, and d3.scaleLinear for rendering, with a mouse interceptor rectangle capturing pointer events and d3.mouse to convert pixel positions back into dates. A color legend encodes region identities, and the chart is built with SVG elements and D3's data-join pattern.

AI-generated description

MIT Licensed

Similar vizzes

Loading thumbnail…

Selecting a Year on a Line Chart

This interactive visualization displays UN population estimates and projections by global region from 1950 to 2100 as a multi-line chart, with color-coded lines sorted by final population. A vertical line marks the currently selected year, which updates as the user moves the mouse across the chart, triggering a re-render that highlights the selected position. The implementation uses d3.scaleTime and d3.scaleLinear for axes, d3.nest for grouping data by region, and d3.line with curveBasis for smooth paths. A custom colorLegend component renders the categorical d3.schemeCategory10 scale, while the mouse interceptor uses d3.mouse to detect cursor position and update the selection.

AAnne Kerr

95% match

Loading thumbnail…

Selecting a Year on a Line Chart

This interactive line chart displays population over time by global region, compiled from UN population estimates and medium-variant projections. A vertical line marks the currently selected year, which the viewer can change by moving the mouse over the chart. The visualization uses `d3.line` with basis curves for each region’s series, colored via an ordinal scale. The `mouse` utility captures pointer position to update the selected year, triggering a re-render that redraws the selection line and axis. The SVG is rendered using D3’s selection API, with axes, labels, and a legend generated programmatically.

Rrigt

94% match

Loading thumbnail…

Selecting a year on a line chart

This line chart visualizes population estimates and projections for world regions from 1950 to 2100, using data from the UN Population Estimates and Medium Variant datasets. A vertical line marks the currently selected year, and moving the mouse across the chart updates this selection, with the year recomputed from the mouse position via the x-scale’s inverse mapping. The chart is built with D3 v5, using SVG rendering, scales, axes, and a basis-curve line generator, while a custom legend assigns colors to regions through a categorical ordinal scale.

MMatthiasVanCampen

94% match

Loading thumbnail…

Selecting a Year on a Line Chart

This line chart visualizes UN population estimates and projections by region from 1950 to 2100, with a vertical line marking a selected year. A clickable mouse-interceptor rectangle lets users hover to update the selected year via `setSelectedYear`, which re-renders the chart. The visualization uses d3.scaleTime, d3.scaleLinear, d3.line with curveBasis, and d3.nest for grouping, rendering as SVG with an ordinal color scale legend. Data comes from two CSV files loaded with d3.csv, combining estimates and medium-variant projections.

Kkbriggs1

94% match

Loading thumbnail…

Selecting a Year on a Line Chart

This line chart shows population estimates and projections over time for global regions from 1950 to 2100. A vertical black line marks the currently selected year, which changes dynamically as the user moves the mouse across the chart. The visualization uses d3.line with curveBasis for smooth paths, d3.scaleTime and d3.scaleLinear for axes, and d3.mouse to detect hover position, triggering a re-render with the new year. Data comes from UN population estimates and medium-variant projections, rendered as SVG with a categorical color legend.

RRajib Kumar Chanda

94% match

Loading thumbnail…

Selecting a Year on a Line Chart

This line chart displays population estimates and projections for global regions from 1950 to 2100, using data from the UN Population Estimates. A vertical black line marks the currently selected year, which updates when the user moves the mouse across the chart. The visualization uses d3.scaleTime, d3.scaleLinear, d3.nest, and d3.line with curveBasis to render the paths. A color legend built with custom SVG elements identifies each region. The mouse interceptor rect calls setSelectedYear on mousemove to change the highlighted year.

PPotikorn

94% match

Loading thumbnail…

Selecting a Year on a Line Chart

This line chart displays population trends over time for global regions, using United Nations population estimates from 1950 to 2100. A movable vertical line marks the currently selected year, and moving the mouse across the chart updates the selection to the nearest year, re-rendering the visualization. The chart uses d3.line with curveBasis for smooth paths, d3.scaleTime and d3.scaleLinear for axes, and d3.nest to group data by region. A separate color legend identifies each region, with SVG rendering and d3.mouse handling for interaction.

Rroxannekim

94% match

Loading thumbnail…

Selecting a Year on a Line Chart

This visualization shows UN population estimates and projections from 1950 to 2100 for world regions as multi-line charts, with a movable vertical line that selects a year. Moving the mouse across the chart updates the selected year, which is rendered as a black vertical line. The chart uses D3 v5 with SVG rendering, employing `d3.line` with `curveBasis` for smooth paths, `d3.nest` to group data by region, and `d3.scaleTime` and `d3.scaleLinear` for axes. A custom color legend maps regions using `d3.scaleOrdinal` with `schemeCategory10`.

Kkbriggs1

94% match