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**NinjaTrader_JC** · 09-07-2012, 02:11 PM

Hello Riskybiz,

Can you send a toy* NinjaScript code replicating the behavior to support [at] ninjatrader [dot] com so that I may take a look at it? In the subject line put: ATTN: JC with reference to this thread.

Happy to be of further assistance.

*Toy - basically a stripped down version of code that isn't necessarily the whole logic. Making it easier to identify lines of code.

**doctore** · 01-07-2013, 03:40 PM

Hi,

I have the same problem, but I do not see an answer posted to the original question.

I am trying to use drawing methods in classes that I have created, like "DrawText". But I keep getting errors that "DrawText" is not found. I have included in the class definitions every using statement I that could think of.

To work around the problem, I have been passing data from objects back up to their creator so that I can do drawing functions on the data in the indicator's OnBarUpdate method (drawing functions that really belong in lower level objects). This is getting real 'old'.

What am I misssing? Can you help please?

Tx!

**NinjaTrader_Lance** · 01-07-2013, 04:19 PM

Hello,

Can you please attach your NinjaScript source code or simplified version which replicates the issue.

File located in: (MY)Documents\NinjaTrader 7\bin\Custom\Indicator or Documents\NinjaTrader 7\bin\Custom\Strategy

I look forward to assisting you further.

**koganam** · 01-07-2013, 04:25 PM

Originally posted by Riskybiz View Post

Hi quick question for an expert,

I'm trying to use the DrawRay() method in a NinjaScript class to draw lines on a chart like so;

Code:

 
[FONT=Courier New][SIZE=2][FONT=Courier New][SIZE=2][FONT=Courier New][SIZE=2][COLOR=black]IRay ray = DrawRay("tag1", 10, 1000, 0, 1001, Color.LimeGreen)[/COLOR][/SIZE][/FONT][/SIZE][/FONT][/SIZE][/FONT]

but on compilation I get the error

"The name DrawRay does not exist in the current context"

I have the following using statements at the top of the code

Code:

 
[FONT=Courier New][SIZE=2][COLOR=#0000ff][FONT=Courier New][SIZE=2][COLOR=#0000ff][FONT=Courier New][SIZE=2][COLOR=#0000ff]using[/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][FONT=Courier New][SIZE=2][FONT=Courier New][SIZE=2][COLOR=#000000] System;[/COLOR][/SIZE][/FONT]
[/SIZE][/FONT][FONT=Courier New][SIZE=2][COLOR=#0000ff][FONT=Courier New][SIZE=2][COLOR=#0000ff][FONT=Courier New][SIZE=2][COLOR=#0000ff]using[/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][FONT=Courier New][SIZE=2][FONT=Courier New][SIZE=2][COLOR=#000000] System.ComponentModel;[/COLOR][/SIZE][/FONT]
[/SIZE][/FONT][FONT=Courier New][SIZE=2][COLOR=#0000ff][FONT=Courier New][SIZE=2][COLOR=#0000ff][FONT=Courier New][SIZE=2][COLOR=#0000ff]using[/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][FONT=Courier New][SIZE=2][FONT=Courier New][SIZE=2][COLOR=#000000] System.Diagnostics;[/COLOR][/SIZE][/FONT]
[/SIZE][/FONT][FONT=Courier New][SIZE=2][COLOR=#0000ff][FONT=Courier New][SIZE=2][COLOR=#0000ff][FONT=Courier New][SIZE=2][COLOR=#0000ff]using[/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][FONT=Courier New][SIZE=2][FONT=Courier New][SIZE=2][COLOR=#000000] System.Drawing;[/COLOR][/SIZE][/FONT]
[/SIZE][/FONT][FONT=Courier New][SIZE=2][COLOR=#0000ff][FONT=Courier New][SIZE=2][COLOR=#0000ff][FONT=Courier New][SIZE=2][COLOR=#0000ff]using[/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][FONT=Courier New][SIZE=2][FONT=Courier New][SIZE=2][COLOR=#000000] System.Drawing.Drawing2D;[/COLOR][/SIZE][/FONT]
[/SIZE][/FONT][FONT=Courier New][SIZE=2][COLOR=#0000ff][FONT=Courier New][SIZE=2][COLOR=#0000ff][FONT=Courier New][SIZE=2][COLOR=#0000ff]using[/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][FONT=Courier New][SIZE=2][FONT=Courier New][SIZE=2][COLOR=#000000] System.Xml.Serialization;[/COLOR][/SIZE][/FONT]
[/SIZE][/FONT][FONT=Courier New][SIZE=2][COLOR=#0000ff][FONT=Courier New][SIZE=2][COLOR=#0000ff][FONT=Courier New][SIZE=2][COLOR=#0000ff]using[/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][FONT=Courier New][SIZE=2][FONT=Courier New][SIZE=2][COLOR=#000000] NinjaTrader.Cbi;[/COLOR][/SIZE][/FONT]
[/SIZE][/FONT][FONT=Courier New][SIZE=2][COLOR=#0000ff][FONT=Courier New][SIZE=2][COLOR=#0000ff][FONT=Courier New][SIZE=2][COLOR=#0000ff]using[/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][FONT=Courier New][SIZE=2][FONT=Courier New][SIZE=2][COLOR=#000000] NinjaTrader.Data;[/COLOR][/SIZE][/FONT]
[/SIZE][/FONT][FONT=Courier New][SIZE=2][COLOR=#0000ff][FONT=Courier New][SIZE=2][COLOR=#0000ff][FONT=Courier New][SIZE=2][COLOR=#0000ff]using[/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][FONT=Courier New][SIZE=2][FONT=Courier New][SIZE=2][COLOR=#000000] NinjaTrader.Gui.Chart;[/COLOR][/SIZE][/FONT]
[/SIZE][/FONT]

and the following references

Code:

 
[FONT=Calibri][COLOR=#000000]Assembly[/COLOR][/FONT][FONT=Calibri][COLOR=#000000]System.dll[/COLOR][/FONT][FONT=Calibri][COLOR=#000000]System.Core.dll[/COLOR][/FONT][FONT=Calibri][COLOR=#000000]System.Drawing.dll[/COLOR][/FONT][FONT=Calibri][COLOR=#000000]System.Windows.Forms.dll[/COLOR][/FONT][FONT=Calibri][COLOR=#000000]System.XML.dll[/COLOR][/FONT][FONT=Calibri][COLOR=#000000]C:\Program Files (x86)\NinjaTrader 7\bin\NinjaTrader.Core.dll[/COLOR][/FONT][FONT=Calibri][COLOR=#000000]C:\Program Files (x86)\NinjaTrader 7\bin\WilsonORMapper.dll[/COLOR][/FONT][FONT=Calibri][COLOR=#000000]C:\Users\UserName\Documents\NinjaTrader 7\bin\Custom\NinjaTrader.Vendor.dll[/COLOR][/FONT]

Given that this is a Class definition and not an indicator is it possible to use the NinjaScript drawing objects in the way I propose. Have I missed a reference or using statement? Do I need to declare an Interface in some way? Could someone please show me how to use this drawing object.

Thanks

You probably need to use the Indicator base class.

Code:

 
using NinjaTrader.Indicator;

or else, use the SledgeHammer approach of calling the method by its fully qualified name:

Code:

[FONT=Courier New]
NinjaTrader.Indicator.IndicatorBase.DrawRay([]parameters)
[/FONT]

**doctore** · 01-07-2013, 06:39 PM

Below is a graphic showing a simple indicator with an added test class and an attempt to draw text from the test class. The offending line is highlighted in yellow. The actual file for the simple indicator is attached as well.

CompileError.JPG | Powered by Box

http://tinyurl.com/b52636z

Attached Files

PrintFromClass.cs (6.7 KB, 58 views)

**NinjaTrader_Lance** · 01-08-2013, 08:11 AM

Hello,

Thank you for providing the source code.

While technically the use of your custom class is not something we support you could get around this by doing the following in your TestClass

Code:

    public class TestClass : Indicator
    {
        protected override void Initialize()
        {
        }
        
        protected override void OnBarUpdate()
        {
            DrawText    ("Tag", "Hello", 0, Low   [0], Color.Blue);
        }
    }

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

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