How to place a text over a path in d3.js?

@hal.littel 

To place a text over a path in d3.js, you can use the textPath() method. Here's an example of how you can achieve this:

1. First, create an SVG element and add a

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var svg = d3.select("body")
  .append("svg")
  .attr("width", 500)
  .attr("height", 500);

var path = svg.append("path")
  .attr("d", "M100,100 C200,200 300,200 400,100 S500,0 500,100")
  .style("fill", "none")
  .style("stroke", "black");

1. Next, create a

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var text = svg.append("text")
  .append("textPath")
  .attr("xlink:href", "#pathId") // id of the path element
  .attr("startOffset", "50%")
  .style("text-anchor", "middle") // center the text on the path
  .text("Text over path");

In this example, the textPath() method is used to specify that the text should follow the path with the id="pathId". You can adjust the startOffset attribute to control where along the path the text should start.

1. Finally, you can style the text and path elements as needed using CSS.

That's it! You should now have a text element placed over a path in d3.js.