The areaRadial.innerRadius() method is used to set or return the innerRadius accessor of the areaRadial. It can be a number or a function that returns a number representing the innerRadius of our areaRadial.
Syntax:
areaRadial.innerRadius(inner_Rad);
Parameters: This method accepts single parameter as mentioned above and described below:
- inner_Rad: This parameter holds the innerRadius that can be a number or a function returning the innerRadius.
Return Value: This method returns the innerRadius accessor function of the area radial.
Example 1:
HTML
<!DOCTYPE html> <html> <head>     <meta charset="utf-8">       <script src=     </script> </head>   <body>     <h1 style="text-align: center; color: green;">         neveropen     </h1>       <h3 style="text-align: center;">         D3.js | areaRadial.innerRadius() Method     </h3>     <center>         <svg id="gfg" width="200" height="200">             <g transform="translate(100, 100)"></g>         </svg>     </center>       <script>         var points = [                 {x: 0, y: 0},                 {x: 2, y: 3},                 {x: 4, y: 1},                 {x: 6, y: 8},                 {x: 8, y: 17},                 {x: 10, y: 15},                 {x: 12, y: 20}];           var xScale = d3.scaleLinear().domain([0, 6])                            .range([0, 2 * Math.PI]);         var yScale = d3.scaleLinear()                    .domain([0, 20]).range([90, 30]);           var Gen = d3.areaRadial()              .angle(d => xScale(d.x/2))                // Setting innerRadius function              .innerRadius(d => yScale(d.x/4))              .outerRadius(d => yScale(d.y));           d3.select("#gfg")           .select("g")           .append("path")           .attr("d", Gen(points))           .attr("fill", "green")           .attr("stroke", "black");     </script> </body>   </html> |
Output:
Example 2:
HTML
<!DOCTYPE html> <html> <head>     <meta charset="utf-8">       <script src=     </script> </head>   <body>     <h1 style="text-align: center; color: green;">         neveropen     </h1>       <h3 style="text-align: center;">         D3.js | areaRadial.innerRadius() Method     </h3>       <center>         <svg id="gfg" width="500" height="500">             <g transform="translate(180, 180)"></g>         </svg>     </center>       <script>         var data = [           {x: 10, y: 1},           {x: 15, y: 3},           {x: 20, y: 5},           {x: 25, y: 7},           {x: 30, y: 9},           {x: 35, y: 11},           {x: 40, y: 13}];           var xScale = d3.scaleLinear()           .domain([0, 8]).range([25, 200]);           var yScale = d3.scaleLinear()           .domain([0, 20]).range([200, 25]);           var Gen = d3.areaRadial()              .angle(d => xScale(d.x))                // Setting innerRadius function              .innerRadius(d => yScale(d.y / 3))              .outerRadius(d => yScale(d.y));           d3.select("#gfg")           .select("g")           .append("path")           .attr("d", Gen(data))           .attr("fill", "green")           .attr("stroke", "black");     </script> </body>   </html> |
Output:
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