How to Embed Images within Circles Using D3.js SVG Patterns?

Adding Images to Circles with SVG Patterns in D3.js

In a D3.js visualization, adding an image inside a circle object can be achieved through the use of patterns.

To define a pattern, simply use the tag within a element. Here, we set the pattern's size and specify the image's URL using :

<svg>

In the D3 script, assign the pattern's URL to the fill property:

svg.append("circle")
  .attr("class", "logo")
  .attr("cx", 225)
  .attr("cy", 225)
  .attr("r", 20)
  .style("fill", "transparent")
  .style("stroke", "black")
  .style("stroke-width", 0.25)
  .on("mouseover", function() {
    d3.select(this).style("fill", "url(#image)");
  })
  .on("mouseout", function() {
    d3.select(this).style("fill", "transparent");
  });

By combining SVG patterns with event handling, D3.js enables interactive visualizations where images can be dynamically displayed within circle objects.

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