my own d3 custom color scale - interpolate a range from one given HEX to another












0















I cannot create a custom color scale. I want d3 to interpolate a range from one hex to another



  const colorRange = ['#d7191c', '#d55045']

  const data = [617, 631, 640, 650]

  const color = d3

    .scaleLinear()

    .domain(1, data.length)

    .interpolate(d3.interpolateHcl)

    .range([d3.hcl(colorRange[1]), d3.hcl(colorRange[0])])

  console.log(color(1)) // returns 'rgb(0,0,0)' but expected some hex from the gradient from '#d55045' to '#d7191c'





d3.js







share|improve this question



























    0















    I cannot create a custom color scale. I want d3 to interpolate a range from one hex to another



      const colorRange = ['#d7191c', '#d55045']
    
  const data = [617, 631, 640, 650]
    
  const color = d3
    
    .scaleLinear()
    
    .domain(1, data.length)
    
    .interpolate(d3.interpolateHcl)
    
    .range([d3.hcl(colorRange[1]), d3.hcl(colorRange[0])])
    
  console.log(color(1)) // returns 'rgb(0,0,0)' but expected some hex from the gradient from '#d55045' to '#d7191c'





    d3.js







    share|improve this question

























      0












      0








      0








      I cannot create a custom color scale. I want d3 to interpolate a range from one hex to another



        const colorRange = ['#d7191c', '#d55045']
      
  const data = [617, 631, 640, 650]
      
  const color = d3
      
    .scaleLinear()
      
    .domain(1, data.length)
      
    .interpolate(d3.interpolateHcl)
      
    .range([d3.hcl(colorRange[1]), d3.hcl(colorRange[0])])
      
  console.log(color(1)) // returns 'rgb(0,0,0)' but expected some hex from the gradient from '#d55045' to '#d7191c'





      d3.js







      share|improve this question














      I cannot create a custom color scale. I want d3 to interpolate a range from one hex to another



        const colorRange = ['#d7191c', '#d55045']
      
  const data = [617, 631, 640, 650]
      
  const color = d3
      
    .scaleLinear()
      
    .domain(1, data.length)
      
    .interpolate(d3.interpolateHcl)
      
    .range([d3.hcl(colorRange[1]), d3.hcl(colorRange[0])])
      
  console.log(color(1)) // returns 'rgb(0,0,0)' but expected some hex from the gradient from '#d55045' to '#d7191c'





      d3.js




      d3.js






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Nov 15 '18 at 7:33









      Илья Book NerdИлья Book Nerd

      83




      83
























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          0














          You need to specify the domain correctly






          const colorRange = ['#d7191c', '#d55045']
          
const data = [617, 631, 640, 650]
          
const color = d3.scaleLinear()
          
  .domain([1, data.length])
          
  .interpolate(d3.interpolateHcl)
          
  .range([d3.hcl(colorRange[1]), d3.hcl(colorRange[0])])
          
console.log(color(1));

          <script src="https://d3js.org/d3.v5.min.js"></script>








          share|improve this answer























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            1 Answer
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            active

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            0














            You need to specify the domain correctly






            const colorRange = ['#d7191c', '#d55045']
            
const data = [617, 631, 640, 650]
            
const color = d3.scaleLinear()
            
  .domain([1, data.length])
            
  .interpolate(d3.interpolateHcl)
            
  .range([d3.hcl(colorRange[1]), d3.hcl(colorRange[0])])
            
console.log(color(1));

            <script src="https://d3js.org/d3.v5.min.js"></script>








            share|improve this answer




























              0














              You need to specify the domain correctly






              const colorRange = ['#d7191c', '#d55045']
              
const data = [617, 631, 640, 650]
              
const color = d3.scaleLinear()
              
  .domain([1, data.length])
              
  .interpolate(d3.interpolateHcl)
              
  .range([d3.hcl(colorRange[1]), d3.hcl(colorRange[0])])
              
console.log(color(1));

              <script src="https://d3js.org/d3.v5.min.js"></script>








              share|improve this answer


























                0












                0








                0







                You need to specify the domain correctly






                const colorRange = ['#d7191c', '#d55045']
                
const data = [617, 631, 640, 650]
                
const color = d3.scaleLinear()
                
  .domain([1, data.length])
                
  .interpolate(d3.interpolateHcl)
                
  .range([d3.hcl(colorRange[1]), d3.hcl(colorRange[0])])
                
console.log(color(1));

                <script src="https://d3js.org/d3.v5.min.js"></script>








                share|improve this answer













                You need to specify the domain correctly






                const colorRange = ['#d7191c', '#d55045']
                
const data = [617, 631, 640, 650]
                
const color = d3.scaleLinear()
                
  .domain([1, data.length])
                
  .interpolate(d3.interpolateHcl)
                
  .range([d3.hcl(colorRange[1]), d3.hcl(colorRange[0])])
                
console.log(color(1));

                <script src="https://d3js.org/d3.v5.min.js"></script>








                const colorRange = ['#d7191c', '#d55045']
                
const data = [617, 631, 640, 650]
                
const color = d3.scaleLinear()
                
  .domain([1, data.length])
                
  .interpolate(d3.interpolateHcl)
                
  .range([d3.hcl(colorRange[1]), d3.hcl(colorRange[0])])
                
console.log(color(1));

                <script src="https://d3js.org/d3.v5.min.js"></script>





                const colorRange = ['#d7191c', '#d55045']
                
const data = [617, 631, 640, 650]
                
const color = d3.scaleLinear()
                
  .domain([1, data.length])
                
  .interpolate(d3.interpolateHcl)
                
  .range([d3.hcl(colorRange[1]), d3.hcl(colorRange[0])])
                
console.log(color(1));

                <script src="https://d3js.org/d3.v5.min.js"></script>






                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered Nov 15 '18 at 12:13









                rioV8rioV8

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