Questions

Hi,

I may have run into a bug with the 2d heatmap where it doesn’t refresh. I implemented a ColorMapConverter similar to the solution here: https://www.scichart.com/questions/question/how-to-switchdefine-multiple-fastheatmaprenderableseries-colormap-for-the-same-chart

The Brushes are defined as

    <LinearGradientBrush x:Key="DefaultBrush">
        <GradientStop Offset="0" Color="DarkBlue" />
        <GradientStop Offset="0.2" Color="CornflowerBlue" />
        <GradientStop Offset="0.4" Color="DarkGreen" />
        <GradientStop Offset="0.6" Color="Chartreuse" />
        <GradientStop Offset="0.8" Color="Yellow" />
        <GradientStop Offset="1" Color="Red" />
    </LinearGradientBrush>

    <LinearGradientBrush x:Key="JetBrush">
        <GradientStop Offset="0" Color="#00008F" />
        <GradientStop Offset="0" Color="#00008F" />
        <GradientStop Offset="0.125" Color="#0000FF" />
        <GradientStop Offset="0.375" Color="#00FFFF" />
        <GradientStop Offset="0.625" Color="#FFFF00" />
        <GradientStop Offset="0.875" Color="#FF0000" />
        <GradientStop Offset="1" Color="#800000" />
    </LinearGradientBrush>

The chart will only refresh if the number of gradient stops is different. My workaround is to replicate the first GradientStop in JetBrush. If I remove this line, the chart will not refresh. The colorbar still refreshes correctly, but not the heatmap surface.

I’d like to implement many different colormaps and for now it seems like I can keep replicating GradientStops. I thought it was worth mentioning just in case it’s a bug. Anyway, please let me know if there is a better way to do this.