use OnRender on an indicator's panel

[satoyama]

This question has been probably asked but it is difficult to find the right answer. The question is, how do I use OnRender on an indicator's panel.
As an example, I have a modified MACD and I can use DrawText to draw the Hi and Low values on the zero line of the bar. But I want to use OnRender instead of DrawText.
I don't need instructions on how to use OnRender, just on how to send output to MACD's panel.
Thanks in advance.

[hbolorin]

Hi !

You have this little thread with some answer. You should use the correct chartpanel. It seems the answer is in the samplecustomplot indicator. Take a llok at it.

https://ninjatrader.com/support/forum/forum/historical-beta-archive/version-8-beta/86141-onrender-can-t-draw-in-panel

Regards

[satoyama]

hbolorin
Thanks for your reply. SampleCustomPlot is mention in the link, it sends me to NT8 help guide, but I don't see link to the sample script itself.

[hbolorin]

You have to open de samplecustomplot in the ninjasctipr editor. It is in the INDICATOR folder.

[NinjaTrader_PaulH]

Hello satoyama,

Thanks for your post.

When you modify your MACD with OnRender() coding, it will use the panel that the MACD is assigned to when the indicator is loaded.

[satoyama]

Paul H.
Thanks for your reply. I got it working; the problem was, since I want y-axis to be below 0 line if macd > 0 (and vice versa), I was assigning 0 directly to y-axis instead of GetYByValue(0). It works perfectly (if macd > 0) as it adjusts automatically as I scroll forwards or back; the same for charts with shorter or longer time frame.

The problem now is when macd < 0, the text should be drawn just above the 0 line. I need a y-axis that behaves like GetYByValue(0) but above the 0 line. Assigning a constant value like GetYByValue(1.618) does not produce the same effect as GetYByValue(0), as the text moves out of proportion when scrolling through the chart.

[satoyama]

Paul H.
Done. This did it:
y = GetYByValue(0) - 17.618f;