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Density plot

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PPatricijaC
Last edited May 23, 2020
Created on May 23, 2020
Forked from Density plot

A density plot visualizes the spatial distribution of eye-tracking fixation points from the Old Faithful Dataset, overlaid on a background map of Antwerp. The code uses d3-contour's `contourDensity` to compute density contours and `d3.geoPath` to render them as SVG paths, with a sequential color scale from d3-scale-chromatic mapping contour values. The plot is interactive, as moving the mouse triggers re-rendering with a varying bandwidth. Data is loaded via `d3.csv` from the `data.csv` file.

AI-generated description

A visualization of the Old Faithful Dataset

Uses d3-contour.

Draws from bl.ocks.org: Density Contours

MIT Licensed

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This visualization shows density contours of eye-tracking fixation points from the Old Faithful dataset, overlaid on a map of Antwerp's metro system. The contour plot highlights areas of concentrated gaze, with colors ranging along a diverging PiYG scale to indicate varying density values. The code uses `d3.contourDensity` to compute the contours and `d3.geoPath` to render them as SVG paths. Interactive mouse movement dynamically adjusts the bandwidth of the density estimation, updating the contour shapes in real time. The data, loaded from `data.csv` via `d3.csv`, includes fixation coordinates and durations for multiple participants and stimuli.

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