Learning SVG

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Last edited Feb 11, 2020

Created on Feb 4, 2020

This example demonstrates a simple SVG graphic: a single yellow circle centered within an 800×800 SVG canvas. The visualization is minimal, focusing on fundamental SVG shape creation rather than data representation. The code uses the D3.js v5 library's selection and manipulation API (`d3.select`, `svg.append`) to programmatically construct the circle. It dynamically reads the SVG element's `height` and `width` attributes to position the circle at the exact center, assigning `cx` and `cy` values based on those dimensions. The circle’s radius is set to 200 pixels, and its fill color is set to "yellow" via D3’s attribute methods. Styling is handled through an external CSS file, and the SVG is rendered directly in the browser with no additional data source.

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A bare minimum HTML page.

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