Input value

[tonynt]

Hello,

I want to ask how one can add a value to a script that is enabled.


An idea would be to use the y-value of a horizontal line. Is it possible to calculate in a script with the y-value of an horizontal line, how can this be accessed from a script please?

Thank you!
Tony

[NinjaTrader_Jesse]

Hello tonynt,

Thank you for the post.

You can use either of the following collections to locate drawing objects:
https://ninjatrader.com/support/help...b=drawingtools
https://ninjatrader.com/support/help...b=chartobjects

Once you have an object, you could access the properties of the object like its anchors. https://ninjatrader.com/support/help...rawingtool.htm

When trying to locate a drawing object, keep in mind this will only work going forward in realtime. Using this type of logic in a backtest or historical data will not work. If your use case is to manually draw a object and then detect it, you could do that going forward in realtime.

I look forward to being of further assistance.

[tonynt]

Hello,

thank you for your reply. To generate a horizontal line I tried in the script using a bool like
if(Closes[0][0]>Lows[0][0] && linedraw==false) {Draw.HorizontalLine(this, "TxLine", Closes[0][0], Brushes.Black); linedraw=true;}
so that its drawn only once. But it doesnt draw the horizontal line with replay. Whats wrong there please?

I thought this way I dont need to locate a drawing object(?)

Thank you!
Tony

[NinjaTrader_Jesse]

Hello tonynt,

If your script is drawing the object, you wouldn't need to locate it you just need to access the values you passed to the drawing object. I couldn't tell from what you provided why that is not drawing, are you certain the condition became true?


I look forward to being of further assistance.

[tonynt]

Hello,

thank you for your reply. I had to add state..Historical..return. Now it plots. But it is locked. I have to go to properties and uncheck locked. I can not find in the helpguide "horizontalline" the syntax for adding a "non-locked" horizontal line. There is no sample for Idrawings how to use those properties.

Thank you!
Tony

[NinjaTrader_Jesse]

Hello tonynt,

The object being locked is correct if it was script drawn. What is the overall goal you are trying to accomplish here? Are you trying to draw a line at a value or have some form of manually drawn line?

Please let me know if I may be of further assistance.

[tonynt]

Hello Jesse,

I want to use the y-value of a horizontal line. From what I learnt from your replies here I can draw the line with close of first bar, and from my understanding I add a bool so that its drawn only one time. Then I want to move the line manually, but using the y-value of the line in the code. Thats all. (and with this I dont need to locate a drawing tool, however there should not be a difference, with my idea I dont need to draw it manually because its drawn with close of first bar. yes?
From the helpguide with Idrawing tool properties I dont see any example how to use the properties so that I can draw it "unlocked".

And following the logic from your link I have now
if(Closes[0][0]>Lows[0][0] && linedraw==false)
{HorizontalLine TxLine = Draw.HorizontalLine(this, "TxLine", Closes[0][0], Brushes.Black);linedraw=true;}

if (DrawObjects["TxLine"] as DrawingTools.HorizontalLine != null)
{double linePrice = Instrument.MasterInstrument.RoundToTickSize(TxLine .StartAnchor.Price);}

but I get the error message that "TxLine does not exist in context. Why? (I have done it same as the sample with myText)

Add: there is not one sample how to use the properties. Not one! I dont know how to toggle.

Thank you!
Tony

[NinjaTrader_Jesse]

Hello tonynt,

Thank you for the reply.

From the last link in post #2 you can see the objects default properties, you can toggle the IsLocked property if you wanted to make it not locked.

Please let me know if I may be of further assistance.

[tonynt]

Hello Jesse,

thank you fro your reply. Maybe I wrote it same time as you posted, so I do my question again:
Hello Jesse,

I want to use the y-value of a horizontal line. From what I learnt from your replies here I can draw the line with close of first bar, and from my understanding I add a bool so that its drawn only one time. Then I want to move the line manually, but using the y-value of the line in the code. Thats all. (and with this I dont need to locate a drawing tool, however there should not be a difference, with my idea I dont need to draw it manually because its drawn with close of first bar. yes?
From the helpguide with Idrawing tool properties I dont see any example how to use the properties so that I can draw it "unlocked".

And following the logic from your link I have now
if(Closes[0][0]>Lows[0][0] && linedraw==false)
{HorizontalLine TxLine = Draw.HorizontalLine(this, "TxLine", Closes[0][0], Brushes.Black);linedraw=true;}

if (DrawObjects["TxLine"] as DrawingTools.HorizontalLine != null)
{double linePrice = Instrument.MasterInstrument.RoundToTickSize(TxLine .StartAnchor.Price);}

but I get the error message that "TxLine does not exist in context. Why? (I have done it same as the sample with myText)

Thank you!
Tony

[NinjaTrader_Jesse]

Hello tonynt,

Yes it looks like your edit was after I had posted my reply, going forward I would suggest to not edit your existing posts as we will not likely reply to an edit. I will only be notified if you reply, if you edit the post I will not be back to respond.

The error you are seeing is because you are using conditions and have not included the variable in the second condition. These two conditions need to be combined if you wanted to use the variable in the second condition.

Please let me know if I may be of additional assistance.

[tonynt]

Hello,

with threads in the forum I could resolve in the meantime everything except the toggle Islocked. There is not one example how to use the properties. If there would be one sample as with other topics I would not need to ask.

TxLine = Draw.HorizontalLine(this, "TxLine", Closes[0][0], Brushes.Black, IsLocked);

??? I get an error message that IsLocked does not exist.

Thank you!
Tony

[NinjaTrader_Jesse]

Hello tonynt,

Correct that is not valid syntax, there is no overload which takes IsLocked as a parameter. If you are unsure what parameters you can use, please see the help guide for the drawing tool being used.

IsLocked is a property of all drawing objects which can be set. There is an example of setting drawing object properties in the link I provided in post 2 along with the available properties, is there some confusion surrounding that sample?

Please let me know if I may be of additional assistance.

[tonynt]

Hello,

I dont see a sample there. From the helpguide it is not clear how to use this properties.
The myText sample is different from the use with IsLocked (as I know already from another thread BUT NOT FROM THE HELP GUIDE!)

Show me the sample you are referring to from where a non-programmer can understand the logic.

Thank you!
Tony

[NinjaTrader_Jesse]

Hello tonynt,

Here is the sample from the help guide, the same page also lists the properties you can use with drawing objects such as IsLocked. As a side note, the help guide samples are targeted at programmers, if you are looking for a more simplistic or non-programming related sample I am not aware of that type of item.

Text myText;
protected override void OnBarUpdate()
{  
  if(CurrentBar == 50)
    myText = Draw.Text(this, "tag", "test", 0, High[0]);    

  if(myText != null)
  {          
    Print(myText.Anchor.DrawnOnBar); // drawn on bar 50
  }

}

This is a blanket example showing how to access properties of a drawing object. The help guide does not contain a sample of every property. In a lot of cases you may need to use the more broad sample to learn how use the object in question. Once you understand how to access one of the properties of the object you can access all of the properties of the object. NinjaScript/C# are object oriented so the reference shown above this sample in the help guide explains the object you are working with and its properties that can be used.

If you wanted to use one of the other properties a drawing object has, you can replace the ".Anchor.DranOnBar" syntax with whatever property you wanted to use. This sample just demonstrates how to make a variable of your object which you can then access its properties using that variable. Take note how the overload is one of the supported Draw.Text overloads and the proeprty is later being accessed.

I would suggest trying to edit this sample in your script and change it to IsLocked syntax, if you are still having trouble please post what you tried and we can work from that.



Please let me know if I may be of additional assistance.

[tonynt]

Hello,

thank you for your reply. I dont want to have a sample of every property. Only one!

The islocked property has to be added in the script with "nameHorizontalLine.IsLocked=false;". This I found from the question in another thread.
And from the help guide there is no idea that it has to be done this way. How does the example above show how to use the properties?
eg like "Draw.HorizontalLine(NinjaScriptBaseowner,stringtag,boolisAutoScale,doubley,Brushbrush,DashStyleHelperdashStyle,intwidth)" ?

OK I have resolved everything and I can add the horizontal line "automatically", set the autodraw to false with a bool and then I can move it manually and I can use it for calculating in my code as I want. Great!

The bool sets to true when its drawn so that it does not plot from the initial condition and I can move it manually. I can do in ES, NQ...
But when I enable the script with CL 09-19 and I grab the line to move it, the line jumps like a rabbit, it jumps to prices I am not with the cursor.

I have for the line: if(conditions)....{TxLine = Draw.HorizontalLine(this, "TxLine", true, Closes[1][0], Brushes.Blue, DashStyleHelper.Dash,2);linedraw=true; TxLine.IsLocked=false;}
and then
if(linedraw==true)
{if (DrawObjects["TxLine"] != null && DrawObjects["TxLine"] is DrawingTools.HorizontalLine)
{double linePrice = Instrument.MasterInstrument.RoundToTickSize(TxLine .StartAnchor.Price); linevalue = linePrice;}

// the linevalue is what I´m calculating with in onbarupdate.


What might be the reason for this "jump-behavior" in CL please?

Thank you!
Tony