Hide Indicator Drawn Chart Objects

[TheTradingMantis]

I have a couple of indicators that draw a large number of Drawing Objects (HorizontalLines, VerticalLines and Text).

Is it possible to hide the Drawing Objects drawn by these indicators in the Drawing Objects dialogue? Ideally I only want to see objects that have been drawn manually.

Thanks,
Greg

[NinjaTrader_Jesse]

Hello,

Thank you for the post.

This is actually possible now in NT8 using the drawing objects menu.

If you Right click the chart and choose Drawing Tools -> Drawing Objects
In the menu that opens, you can highlight all tools at once by either pressing Control + A after clicking on one of the tools in the list or using the Control or shift + click command.

Once selected you should see a limited set of options on the right which includes "Visible", just uncheck that and they should disappear after clicking OK.

I look forward to being of further assistance.

[TheTradingMantis]

Hi Jesse,
I was actually wanting to do the opposite... show drawn objects on the Chart and hide the objects in the Drawing Objects dialogue.

I would like to just see the manually drawn objects in the dialogue, so it is easy to find and delete them.

[NinjaTrader_Jesse]

Hello,

Thank you for the clarification.

In that case, that would not currently be possible. All objects will be listed in this dialog if they are attached to the chart where the dialog was opened. I will put in a feature request for some way to toggle the display of script drawn objects from being on the list.

I look forward to being of further assistance.

[TheTradingMantis]

Thanks Jesse,

An alternate feature request, that should be easier to implement, is to sort all the objects in the Drawing Object dialogue list by tag. I think they are currently sorted in the order they are loaded/rendered on the chart.

With this sort, I could tag my indicator drawn objects appropriately (e.g. preface the tag with a "+" sign) and then easily find the manually drawn objects.

This sort would also group all like objects together and all global objects together, which would be very convenient.

[TheAngryCube]

Quite old post, but I want to share how I solved this requirement.

I solved this by drawing in OnRender instead of OnBarUpdate. Then in OnRender, only draw if the related bar is visible at the moment. Save the drawn objects in a global list and remove all drawings before starting to redraw visible ones.
By doing this, you only see visible drawings in "Drawing Objects" dialogue.

Create a global list:

public class MyIndicator: Indicator
{​
  private List<DrawingTool> m_DrawObjects;
  ...

Initialize the list:

protected override void OnStateChange()
{
  if (State == State.SetDefaults)
  {​
     ...
     m_DrawObjects = new List<DrawingTool>();
  }

Given, that you have a series holding your reason to draw a marker (LongSignal + ShortSignal)
OnRender:

protected override void OnRender(ChartControl chartControl, ChartScale chartScale)
{
  m_DrawObjects.ForEach(obj => RemoveDrawObject(obj.Tag));
  m_DrawObjects.Clear();

  for (int i = chartControl.PrimaryBars.FromIndex; i <= chartControl.PrimaryBars.ToIndex; i++)
  {
    var valueLong = LongSignal.GetValueAt(i);
    var shortValue = ShortSignal.GetValueAt(i);

    if (valueLong > 0)
    {
      var low = Low.GetValueAt(i-1);
      var time = Time.GetValueAt(i-1);
      var obj = Draw.ArrowUp(this, "Long" + i, true, time, low - TickSize * 10, Brushes.Green);
      m_DrawObjects.Add(obj);
    }
    else if (shortValue > 0)
    {
      var high = High.GetValueAt(i-1);
      var time = Time.GetValueAt(i - 1);
      var obj = Draw.ArrowDown(this, "Short" + i, true, time, high + TickSize * 10, Brushes.Red);
      m_DrawObjects.Add(obj);
    }
  }

  base.OnRender(chartControl, chartScale);
}​

BR
TheAngryCube