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Tag: gradientStops

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My application supports two themes (dark/light) for the charts. The background of the chart will be set to black if the dark mode is applied, and white if the light mode applied. It works well with the line chart. But there is strange grey background appeared in the heatmap chart when light mode is applied (Please check the attached screenshots). The color of gradient stop of offset 0 (min. heatmap zValues) is set to transparent and it works well with the dark mode. Do you know what’s wrong in my case?

Dark theme object applied to the chart:

{ SciChartJSDarkTheme(), ...{
        sciChartBackground: "#1c1c1c",
        axisTitleColor: "#dee2e6",
        labelBorderBrush: "#dee2e6",
        tickTextBrush: "#dee2e6",
        majorGridLineBrush: "#1F3D68",
        minorGridLineBrush: "#102A47",

Light theme object applied to the chart:

{ SciChartJSLightTheme(), ...{
        sciChartBackground: "#fff",
        axisTitleColor: "#333",
        labelBorderBrush: "#333",
        tickTextBrush: "#333",

Heatmap graditentStops:

    { offset: 1, color: COLORS.DARK_RED },
    { offset: 0.8, color: COLORS.RED },
    { offset: 0.6, color: COLORS.YELLOW },
    { offset: 0.5, color: COLORS.GREEN },
    { offset: 0.4, color: COLORS.BLUE },
    { offset: 0.01, color: COLORS.DARK_BLUE },
    { offset: 0, color: "Transparent" },
1 vote

I am trying to add an axis annotation to a heatmap legend. When this annotation is dragged, the color mapping of the heatmap series and the heatmap legend will be changed. How can I modify the colorMap.gradientStops of the heatmap series and the heatmap legend while the chart is running?

  • Quyen Sy asked 1 year ago
  • last active 1 year ago
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