Need to draw vertical and horizontal lines

March 20th, 2015, 09:34 PM

hello,

I have some price levels and certain dates (pre determined). I want to put that info into an indicator so that whenever I open the chart and load this indicator they are always there.

I tried to draw a vertical line on 17th march 2015, but it is not showing up. There are no errors in the code btw.

Code

 public class Dates : Indicator
    {
        #region Variables
        // Wizard generated variables
            private uint date; // Default setting for MyInput0
        // User defined variables (add any user defined variables below)
        #endregion

        /// <summary>
        /// This method is used to configure the indicator and is called once before any bar data is loaded.
        /// </summary>
        protected override void Initialize()
        {
            Add(new Plot(Color.FromKnownColor(KnownColor.Orange), PlotStyle.Line, "Plot0"));
            Overlay				= true;
        }

        /// <summary>
        /// Called on each bar update event (incoming tick)
        /// </summary>
 			 protected override void OnBarUpdate()
        {
            // Use this method for calculating your indicator values. Assign a value to each
            // plot below by replacing 'Close[0]' with your own formula.
			//           if (date == 20150317 && FirstTickOfBar)
			//			DrawVerticalLine("MyVerticalLine", 0, Color.Blue);
			if (ToTime(Time[0]) == 00000 && ToDay(Time[0]) == 20150317 && FirstTickOfBar) 
			
			DrawVerticalLine( "myTag", 20150317  , Color.Blue, DashStyle.Dash , 2);

Why is this not working ?

Also please mention how to draw lines at specific price levels using ninjascript

March 20th, 2015, 11:31 PM

Since you want to use the overload with date, you need to call the method with the following arguments:

Code

DrawVerticalLine(string tag, DateTime time, Color color, DashStyle dashStyle, int width)

In your code:

Code

DrawVerticalLine( "myTag", 20150317  , Color.Blue, DashStyle.Dash , 2);

you are not providing the DateTime but an int which is interpreted by NT as barsAgo, hence no error as it "draws" a line 20150317 bars ago. Read more on DateTime structure here:
C# DateTime Examples

Another problem in your code will be the tag which is not unique this will cause NT keeping only the last drawn line on the chart.

Try using the following:

Code

DrawVerticalLine("myVL" + 20150317, new DateTime(2015, 3, 17), Color.Blue, DashStyle.Dash, 2);

PS. For specific price level you probably want horizontal line, read here:
https://ninjatrader.com/support/helpGuides/nt7/index.html?drawhorizontalline.htm

March 21st, 2015, 01:28 AM

Thanks a lot gregid!! Didn't expect to do this so fast!

I messed around with the code and found that the integer no. after the tag is also not mandatory along with the 'dumb' if clause I used -_-

Thanks

Code

			//			DrawVerticalLine("MyVerticalLine", 0, Color.Blue);
//			if (ToTime(Time[0]) == 00000 && ToDay(Time[0]) == 20150317 && FirstTickOfBar) 
//			this if is useless piece of crap!!!
//			DrawVerticalLine( "myTag", 20150317  , Color.Blue, DashStyle.Dash , 2);
				DrawVerticalLine("myV3L" , new DateTime(2015, 3, 17), Color.Blue, DashStyle.Dash, 2);
				DrawVerticalLine("myVL" , new DateTime(2015, 3, 18), Color.Green, DashStyle.Dash, 2);
				DrawHorizontalLine("myhl", true,  162.125, Color.Red, DashStyle.Solid,  2);
				DrawVerticalLine("myVL4" , new DateTime(2015, 3, 23), Color.Green, DashStyle.Dash, 2);

Makes me feel that I cant do much relying solely on NT manual -_-

gregid

Since you want to use the overload with date, you need to call the method with the following arguments:

Code

DrawVerticalLine(string tag, DateTime time, Color color, DashStyle dashStyle, int width)

In your code:

Code

DrawVerticalLine( "myTag", 20150317  , Color.Blue, DashStyle.Dash , 2);

you are not providing the DateTime but an int which is interpreted by NT as barsAgo, hence no error as it "draws" a line 20150317 bars ago. Read more on DateTime structure here:
C# DateTime Examples

Another problem in your code will be the tag which is not unique this will cause NT keeping only the last drawn line on the chart.

Try using the following:

Code

DrawVerticalLine("myVL" + 20150317, new DateTime(2015, 3, 17), Color.Blue, DashStyle.Dash, 2);

PS. For specific price level you probably want horizontal line, read here:
NinjaTrader Version 7

July 13th, 2018, 03:32 PM

How to draw a global verticalline.

I want to draw a verticalline in multiple open chart.

This code is working well, but I want to draw this line in all my charts.

Draw.VerticalLine(this, @"buy " + CurrentBars[0].ToString(), 0, Brushes.Lime, DashStyleHelper.Solid, 2);

Thanks.

July 13th, 2018, 06:20 PM

roelop

How to draw a global verticalline.

I want to draw a verticalline in multiple open chart.

This code is working well, but I want to draw this line in all my charts.

Draw.VerticalLine(this, @"buy " + CurrentBars[0].ToString(), 0, Brushes.Lime, DashStyleHelper.Solid, 2);

Thanks.

If you are using NT 8, have you tried turning on global drawing objects? Tools->Options->General->Global Drawing Objects Across Workspaces.

not sure if that will work just something I noticed the other day.

Edit: Never mind. Just tried it and it didn't do what I thought.

Need to draw vertical and horizontal lines

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Need to draw vertical and horizontal lines