Nivo: Choropleth Legend is Missing for unknownColor.

[Buvaneshkumar7]

unknownColor is missing in Legends on Choropleth, please add the this.

[wyze]

Hi @Buvaneshkumar7, I'm not sure I follow. Can you explain a little bit please? Or show an example of what you mean?

[Buvaneshkumar7]

Hi @wyze, I am using @nivo/geo in my project to plot the chart and I have added legends to the charts .There is a props "unknownColor" which is used to color the country that has no value, is there any way to add this the legends.

As of now legends is not showing for the country that has no value. As you see the attached image there are few countries with blue color how to add this to legends.

  const MyResponsiveChoropleth = ({ data /* see data tab */ }) => (

  <ResponsiveChoropleth
    data={data}
    features={countries.features}
    colors="nivo"
    unknownColor="blue"
    label="properties.name"
    valueFormat=".2s"
    projectionTranslation={[0.5, 0.5]}
    enableGraticule={true}
    graticuleLineColor="#dddddd"
    borderWidth={0.5}
    borderColor="#152538"
    legends={[
      {
        anchor: "bottom-left",
        direction: "column",
        justify: true,
        translateX: 20,
        translateY: -100,
        itemsSpacing: 0,
        itemWidth: 94,
        itemHeight: 18,
        itemDirection: "left-to-right",
        itemTextColor: "#444444",
        itemOpacity: 0.85,
        symbolSize: 18,
        effects: [
          {
            on: "hover",
            style: {
              itemTextColor: "#000000",
              itemOpacity: 1
            }
          }
        ]
      }
    ]}
  />
)

[wyze]

Okay, thanks for the more detailed response. I'll have to take a look at how the legend data is generated.