Fork of Selecting a Year on a Line Chart

100%

Fork of Selecting a Year on a Line Chart

✓ Published0🌍 Public

Last edited Jan 23, 2026

Created on Jan 23, 2026

Forked from Selecting a Year on a Line Chart

This line chart displays population over time by region, with a movable vertical line that selects a year and highlights the corresponding data point. The visualization uses D3 v5’s `scaleTime`, `scaleLinear`, and `axisBottom`/`axisLeft` to render SVG axes, while `d3.line` with `curveBasis` draws the smoothed paths. A `mouse` event on an overlay rectangle updates the selected year, and a color legend built with `scaleOrdinal` and `schemeCategory10` identifies each region. Data comes from UN population estimates (1950–2014) and medium-variant projections (2015–2100).

AI-generated description

MIT Licensed

Similar vizzes

Loading thumbnail…

Fork of Selecting a Year on a Line Chart

This interactive line chart displays population trends over time for various world regions, with a vertical line marking a selected year, which users can adjust by moving the mouse across the chart. Using D3 v5, the visualization employs `scaleTime`, `scaleLinear`, and `scaleOrdinal` for scales, `axisBottom` and `axisLeft` for axes, and `line` with `curveBasis` for smooth paths. Data is loaded from UN population estimate CSV files. The SVG rendering updates dynamically through a selection state, and a separate color legend uses `scaleOrdinal` with a category 10 scheme to identify regions.

Jjudeluka

95% match

Loading thumbnail…

Fork of Selecting a Year on a Line Chart

This interactive line chart displays population trends over time by region, with a movable vertical line that updates the selected year on hover. The visualization uses d3.scaleTime, d3.scaleLinear, d3.nest, and d3.line with curveBasis to render smooth paths from UN population estimates and medium-variant projections (1950–2100). A d3.ordinal color scale distinguishes regions via a legend, while mouse events trigger year selection through d3.mouse and axis inversion. SVG rendering handles all elements, including gridlines, labeled axes, and an interactive overlay rect.

AAmmar Ehab

94% match

Loading thumbnail…

Fork of Selecting a Year on a Line Chart

This interactive line chart displays population trends over time for global regions, with a movable vertical line that lets users select a specific year. Hovering over the chart triggers the `setSelectedYear` function, which updates the selected year and redraws 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 color legend built with `d3.scaleOrdinal` and `schemeCategory10` identifies each line. Population data comes from UN estimates merged with medium variant projections, rendered as SVG.

PPiotr Paszek

94% match

Loading thumbnail…

Fork of Selecting a Year on a Line Chart

This interactive line chart displays population trends over time by region, using data from UN population estimates. A vertical black line marks the currently selected year, and users can hover over the chart to update this selection, which the visualization updates in real time. The D3 code organizes regions by color using `d3.scaleOrdinal` and `d3.schemeCategory10`, draws the lines with `d3.line` and `d3.curveBasis`, and renders axes with `d3.axisLeft` and `d3.axisBottom`. A custom legend component maps colors to region names, and the data is loaded from CSV files.

Rrajeshathakur

93% match

Loading thumbnail…

Fork of Selecting a Year on a Line Chart

This interactive line chart displays population trends over time by region, with a movable vertical line and circular markers that highlight the selected year across all series. Users click or drag on the chart to change the selection, updating the visualization in real time. The visualization uses the D3 v5 modules `nest`, `scaleTime`, `scaleLinear`, and `scaleOrdinal` to structure and scale the data, while `axisBottom`, `axisLeft`, and `line` handle axes and path generation. Population data comes from UN estimates (1950–2014) and medium-variant projections (2015–2100), rendered as SVG with semi-transparent strokes.

RRaghureddy4545

93% match

Loading thumbnail…

Fork of Selecting a Year on a Line Chart

This visualization shows population trends over time for world regions, with a vertical line marking a selected year that updates on mouse movement. Users can compare regional curves colored via an ordinal scale, with the selected year’s position recalculated using d3.scaleTime inversion. The chart is rendered in SVG using d3.line with basis curves, and incorporates a nested data structure from UN population estimates and medium variant projections. A color legend and axis labels supplement the interactive line chart.

Ssandeshplanner

93% match

Loading thumbnail…

Fork of Selecting a Year on a Line Chart

This visualization shows regional population trends over time as multi-line chart, with a vertical line marking the currently selected year. Moving the mouse across the chart updates the selected year, and a legend identifies each region's color. The code uses D3 v5 APIs including `d3.nest`, `d3.scaleOrdinal` with `schemeCategory10`, and `d3.line` with `curveBasis`, while the interactive year selection relies on `d3.mouse` and `scaleTime.invert`. Data comes from UN population estimates and medium variant projections, rendered as SVG elements.

Nnayd

93% match

Loading thumbnail…

Fork of Selecting a Year on a Line Chart

This line chart visualization displays population trends over time for various world regions. Users can hover over the chart to select a specific year, which triggers a vertical line to appear and updates the visualization accordingly. The chart is built using D3 v5, with the data sourced from UN population estimates. It employs D3’s `scaleTime`, `scaleLinear`, and `nest` functions to manage the time axis, population values, and multiple region groups, rendered as SVG paths.

Nnikki81140

93% match