Visible Chart Price

[Bluebeep]

Hi guys,

Is there a way I can call the lowest and highest price that's visible on my chart? To be clear it's the current high and low of prices that's visible in the panel.

Thanks!

[NinjaTrader_Jesse]

Hello Bluebeep,

For the visible bars only, likely the best way to accomplish this would be to use similar code to what OnRender or OnCalculateMinMax uses.

https://ninjatrader.com/support/helpGuides/nt8/en-us/oncalculateminmax.htm?zoom_highlightsub=CalculateMinMax

https://ninjatrader.com/support/helpGuides/nt8/en-us/onrender.htm?zoom_highlightsub=onrender

The loop over the visible range of bars would essentially be the same in both cases, this could also be used from other areas like OnBarUpdate if necessary. The fundamental is the loop over the range of visible bars by using ChartBars.FromIndex and ChartBars.ToIndex.

I look forward to being of further assistance.

[Bluebeep]

Thank you!

[MattD888]

Sorry.... I'm trying to get this to work as well... I'm struggling with the Loop coding.. if anyone has any code they could paste in or another indicator example they can think of the cycle thru the bars that would be great.

[NinjaTrader_Gaby]

Hello MattD888,

Thank you for your post.

From OnCalculateMinMax():

// For performance optimization, only loop through what is viewable on the chart
for (int index = ChartBars.FromIndex; index <= ChartBars.ToIndex; index++)
{
// since using Close[0] is not guaranteed to be in sync
// retrieve "Close" value at the current viewable range index
double plotValue = Close.GetValueAt(index);

// return min/max of close value
tmpMin = Math.Min(tmpMin, plotValue);
tmpMax = Math.Max(tmpMax, plotValue);
}

OnCalculateMinMax() and OnRender() both have code on their Help Guide pages demonstrating looping through the visible bars on the chart.

It looks like the links from Jesse's initial post are broken so I'll repost them here.

https://ninjatrader.com/support/helpGuides/nt8/oncalculateminmax.htm

https://ninjatrader.com/support/helpGuides/nt8/onrender.htm

Please let us know if you have any further questions.