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Simple Zoom and Pan

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EEfratVil
Last edited Sep 16, 2017
Created on Apr 1, 2017

This example demonstrates simple zoom and pan interactions on a scatterplot of 100 randomly positioned circles. The visualization uses D3 v4 to render SVG circles with a categorical color scale, while a transparent overlay rectangle captures pointer events and applies a zoom behavior with a scale extent from 0.5× to 4×. The zoomed function updates the transform attribute of a container group, enabling smooth panning and scaling of all circles. The code leverages d3.zoom and d3.event.transform to handle the interaction, with the data generated on the fly using d3.range and Math.random.

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