The log.rangeRound() function is used to set the range of the scale to the specified array of values along with this it internally sets the interpolator to interpolatorRound.
Syntax:
log.rangeRound([range]);
Parameters: This function takes a single parameter that is given above and described below.
- [range]: An array that contains the range for the specified domain.
Return Value: This function does not return any value.
Example 1:
HTML
<!DOCTYPE html> <html lang="en">   <head>     <meta charset="UTF-8" />     <meta name="viewport" path1tent=         "width=device-width,initial-scale=1.0" />     </script> </head>   <body>     <h2 style="color:green">GeekforGeeks</h2>       <p>log.rangeRound() Function</p>       <script>         var log = d3.scaleLog()             // Domain             .domain([1, 10])               // Range for the domain             .rangeRound([10, 20, 30, 40, 50, 60, 70, 80, 90]);                       document.write("<h3>log(1.0): " + log(1.0) + "</h3>");         document.write("<h3>log(2.5): " + log(2.5) + "</h3>");         document.write("<h3>log(4): " + log(4) + "</h3>");         document.write("<h3>log(4.5): " + log(4.5) + "</h3>");         document.write("<h3>log(1.5): " + log(1.5) + "</h3>");     </script> </body>   </html> |
Output:
Example 2:
HTML
<!DOCTYPE html> <html lang="en">   <head>     <meta charset="UTF-8" />     <meta name="viewport" path1tent="width=device-width,                    initial-scale=1.0" />     </script> </head>   <body>     <h2 style="color:green">GeekforGeeks</h2>       <p>log.rangeRound() Function</p>       <script>         var log = d3.scaleLog()             // Domain             .domain([1, 10])             // Range for the domain             .rangeRound([0, 960]);           document.write("<br/><div style=float:left;>");         document.write("<p> With rangeRound()</p>");         document.write("<h3>" + log(1.5) + "</h3>");         document.write("<h3>" + log(2.5) + "</h3>");         document.write("<h3>" + log(3.5) + "</h3>");         document.write("<h3>" + log(4.5) + "</h3>");         document.write("<h3>" + log(8.5) + "</h3>");         document.write(             "<h3>" + log(10.5) + "</h3></div>");           var log = d3.scaleLog()             // Domain             .domain([1, 10])             // Range for the domain             .range([0, 960]);           document.write(           "<div style=margin-left:10px;float:left;>");         document.write("<p> Without rangeRound()</p>");         document.write("<h3>" + log(1.5) + "</h3>");         document.write("<h3>" + log(2.5) + "</h3>");         document.write("<h3>" + log(3.5) + "</h3>");         document.write("<h3>" + log(4.5) + "</h3>");         document.write("<h3>" + log(8.5) + "</h3>");         document.write(             "<h3>" + log(10.5) + "</h3></div>");     </script> </body>   </html> |
Output:
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