The pow.rangeRound() function is used set the range of the scale to the specified array of values along with this it internally sets the interpolator to interpolatorRound.
Syntax:
pow.rangeRound([range]);
Parameters: This function takes a single parameter that is given above and described below.
- [range]: This is an array that contains the range for the domain specified.
Return Values: This function does not return anything.
Below given are a few examples of the function given above.
Example 1: When elements in range array are of type number.
<!DOCTYPE html> <html lang="en"> <head>     <meta charset="UTF-8" />     <meta name="viewport"        path1tent="width=device-width,         initial-scale=1.0"/>     <script src=     </script>     <script src=     </script>     <script src=     </script>     <script src=     </script> </head> <body>     <h2 style="color: green;">         Geeks for neveropen</h2>     <p>pow.rangeRound() Function </p>     <script>         var pow = d3.scalePow()                     // Domain ranges -1, +1                         .domain([-1, +1])                     // Range for the domain .rangeRound([10, 20, 30, 40, 50, 60, 70, 80, 90]);                document.write("<br/><div>");         document.write("<p>With rangeRound()");         document.write("<h3>"+pow(10.5)+"</h3>");         document.write("<h3>"+pow(2)+"</h3>");         document.write("<h3>"+pow(11.5)+"</h3>");         document.write("<h3>"+pow(-1)+"</h3>");         document.write("<h3>"+pow(1.15)+"</h3>");         document.write("<h3>"+pow(5)+"</h3></div>");            var pow = d3.scaleLinear()                     // Domain ranges -1, +1                         .domain([-1, +1])                     // Range for the domain .range([10, 20, 30, 40, 50, 60, 70, 80, 90])            document.write("<br/><div>");         document.write("<p>Without rangeRound()");         document.write("<h3>"+pow(10.5)+"</h3>");         document.write("<h3>"+pow(2)+"</h3>");         document.write("<h3>"+pow(11.5)+"</h3>");         document.write("<h3>"+pow(-1)+"</h3>");         document.write("<h3>"+pow(1.15)+"</h3>");         document.write("<h3>"+pow(5)+"</h3></div>");     </script> </body> </html> |
Output:
Example 2: When elements in range array are of type String.
<!DOCTYPE html> <html lang="en"> <head>     <meta charset="UTF-8" />     <meta name="viewport"        path1tent="width=device-width,         initial-scale=1.0"/>     <script src=     </script>     <script src=     </script>     <script src=     </script>     <script src=     </script> </head> <body>     <h2 style="color: green;">Geeks for neveropen</h2>     <p>pow.rangeRound() Function </p>     <script>         var pow = d3.scalePow()                     // Domain ranges -1, +1                         .domain([-1, +1])                     // Range for the domain .rangeRound(["green", "blue", "red", "black", "white"]);                document.write("<br/><div>");         document.write( "<p>d3.rangeRound() does not work with range of type string");         document.write("<h3>"+pow(10.5)+"</h3>");         document.write("<h3>"+pow(2)+"</h3>");         document.write("<h3>"+pow(11.5)+"</h3>");     </script> </body> </html> |
Output:
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