The d3.lineRadial.radius() method is a radial line accessor method. It sets or gets the radius accessor. If the radius is provided, it must be a number or a function that returns a number representing the radius.
Syntax:
d3.lineRadial.radius(radius);
Parameters:
- radius: This method takes the radius that can be a number or a function returning the radius.
Return Value: This method returns the radius accessor of the Radial line.
Example 1: Setting the radius using this method. For setting angle here we have used lineRadial.angle() function.
<!DOCTYPE html> <html> <meta charset="utf-8"> <head> <title>D3.js | d3.lineRadial.radius()</title> </head> <script src= </script> <body> <h1 style="text-align: center; color: green;"> neveropen </h1> <center> <svg id="gfg" width="200" height="200"> <g transform="translate(100, 100)"></g> </svg> </center> </body> <script> var lineRadialGenerator = d3.lineRadial(); var data = [ {angle: 0, radius: 10}, {angle: 3.14 * .5, radius: 35}, {angle: 3.14 * .75, radius: 55}, {angle: 3.14, radius: 60}, {angle: 3.14 * 1.25, radius: 65}, {angle: 3.14 * 1.5, radius: 70}, {angle: 3.14 * 1.75, radius: 75}, {angle: 3.14 * 2, radius: 80}, {angle: 3.14 * 2.25, radius: 85}, {angle: 3.14 * 2.5, radius: 90}, {angle: 3.14 * 2.75, radius: 95}, {angle: 3.14 * 3, radius: 100}, {angle: 3.14 * 3.25, radius: 105}, {angle: 3.14 * 3.5, radius: 110} ]; var lineRadialGenerator = d3.lineRadial() .angle((d) => d.angle) .radius((d) => d.radius); d3.select("#gfg") .select("g") .append("path") .attr("d", lineRadialGenerator(data)) .attr("fill", "none") .attr("stroke", "green"); </script> </html> |
Output:
Example 2: getting the function for the radius.
<!DOCTYPE html> <html> <meta charset="utf-8"> <head> <title>D3.js | d3.lineRadial.radius()</title> </head> <script src= </script> <body> <h1 style="text-align: center; color: green;"> neveropen </h1> <center> <svg id="gfg" width="200" height="200"> <g transform="translate(100, 100)"></g> </svg> </center> </body> <script> var lineRadialGenerator = d3.lineRadial(); var data = [ {angle: 0, radius: 10}, {angle: 3.14 * .5, radius: 35}, {angle: 3.14 * .75, radius: 55}, {angle: 3.14, radius: 60}, {angle: 3.14 * 1.25, radius: 65}, {angle: 3.14 * 1.5, radius: 70}, {angle: 3.14 * 1.75, radius: 75}, {angle: 3.14 * 2, radius: 80}, {angle: 3.14 * 2.25, radius: 85}, {angle: 3.14 * 2.5, radius: 90}, {angle: 3.14 * 2.75, radius: 95}, {angle: 3.14 * 3, radius: 100}, {angle: 3.14 * 3.25, radius: 105}, {angle: 3.14 * 3.5, radius: 110} ]; var lineRadialGenerator = d3.lineRadial() .angle((d) => d.angle) .radius((d) => d.radius); d3.select("#gfg") .select("g") .append("path") .attr("d", lineRadialGenerator(data)) .attr("fill", "none") .attr("stroke", "green"); console.log(lineRadialGenerator.radius()); console.log(lineRadialGenerator.radius); </script> </html> |
Output:
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