Setting Logarithmic scale for Y Axis

[NickyD]

Hello,

I can't figure out how to set the Y Axis of my indicator panel to logarithmic in code. Seems like it should be an easy property to set but I can't seem to find it, I am only finding a collection of scales where I am expecting to see only one... any assistance appreciated.

Thanks,
Nick

[NinjaTrader_PaulH]

Hello NickyD,

Thanks for your post.

YAxisScalingType

Please see the help guide under Common>Charts>ChartScale>, here: https://ninjatrader.com/support/help...properties.htm

[NickyD]

I did see that in the docs, so I tried this:

protected override void OnRender(ChartControl chartControl, ChartScale chartScale)
{

if (chartScale.Properties.YAxisScalingType != YAxisScalingType.Logarithmic)
{

chartScale.Properties.YAxisScalingType = YAxisScalingType.Logarithmic;

}

}


Which sets the scale correctly to logarithmic but then doesn't render my actual indicator values... ( see photo, has log scale and data in databox but not my PlotStyle.Line plot).

Do I have to create custom code to plot my values if I am overriding OnRender just to set this property?

[NinjaTrader_PaulH]

Hello NickyD,

Thanks for your reply.

Any time you use OnRender() and have plots you must add:

// call the base.OnRender() to ensure standard Plots work as designed
base.OnRender(chartControl, chartScale);

Reference: see example "Calling the base.OnRender() method to ensure Plots are rendered along with custom render logic" https://ninjatrader.com/support/help.../?onrender.htm

[NickyD]

Perfect. Thanks!