D3.js arc.startAngle() Function
The arc.endAngle() function in d3.js library is used to set the start angle of the arc. This function sets the start angle to a function or to an integer.
Syntax:
arc.startAngle([angle]);
Parameters: This function accepts a single parameter as mentioned above and described below.
- angle: This takes a number that corresponds to the start angle of the arc.
Return Values: This function does not return anything.
Below given are a few examples of the function given above.
Example 1:
HTML
<!DOCTYPE html><html lang="en"> <head> <meta charset="UTF-8" /> <meta name="viewport" content= "width=device-width, initial-scale=1.0" /> <!--Fetching from CDN of D3.js --> <script src= </script></head> <body> <div style="width:300px; height:300px;"> <center> <h1 style="color:green"> GeeksforGeeks </h1> <h2> arc.startAngle() </h2> </center> <svg width="300" height="300"> </svg> </div> <script> var svg = d3.select("svg") .append("g") .attr("transform", "translate(150, 100)"); // An arc will be produced var arc = d3.arc() .outerRadius(20) .innerRadius(90) // Use of arc.startAngle() Function .startAngle(3) .endAngle(2 * 2.5); svg.append("path") .attr("class", "arc") .attr("d", arc); let p = document.querySelector(".arc"); p.style.fill = "green"; </script></body> </html> |
Output:
Example 2:
HTML
<!DOCTYPE html><html lang="en"> <head> <meta charset="UTF-8" /> <meta name="viewport" content= "width=device-width, initial-scale=1.0" /> <!--Fetching from CDN of D3.js --> <script src= </script></head> <body> <div style="width:300px; height:300px;"> <center> <h1 style="color:green"> GeeksforGeeks </h1> <h2> arc.startAngle() </h2> </center> <svg width="300" height="300"> </svg> </div> <script> var svg = d3.select("svg") .append("g") .attr("transform", "translate(150, 100)"); // An arc will be produced var arc = d3.arc() .outerRadius(20) .innerRadius(90) // Use of arc.startAngle() Function .startAngle(5) .endAngle(0.5); svg.append("path") .attr("class", "arc") .attr("d", arc); let p = document.querySelector(".arc"); p.style.fill = "green"; </script></body> </html> |
Output:
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