flipping trendlines

[russ123]

Hello

I want to flip a horizontal trendline to a vertical trendline. Baslically change the slope of the trendline from 0 to 90 degrees up or down. Any ideas on how i can do this in ninjascript?

[NinjaTrader_PatrickH]

Hello russ123,

Thank you for your post.

Please answer the following questions so we may be of further assistance.

• Are you using DrawHorizontalLine or DrawTrendChannel? - http://ninjatrader.com/support/helpG...t7/drawing.htm
• Is this your own code or a third party's?
• Is this a manually placed Trend Line and if so what drawing object did you use?

[russ123]

hello,

I am using the drawlinefunction within ninjascript which basically takes the X1 X2 and the Y1 Y2 coordinates. I am specifying the X1 Y1 and X2 Y2 coordinates to draw a horizontal trendline.

Now I need to create a VERTICAL trendline of the same length. The X1 and X2 coordinates are the same and they are known because I specified them for the horizontal trendline. The Y1 coordinate is also known. The problem is the Y2 coordinate for the vertical trendline. The Y2 coordinate is the distance/length of the horizontal line, which is (X2-X1). How can i get this distance and plot it on the Y axis to create a vertical trendline ?

There maybe another way to do it if there is a method that accepts Slope. If I can specify a slope of 90 degreess for a horizontal trendline, then that line would become a vertical line. I am not sure if there is something like this available ?

thank you,
Rassul

[NinjaTrader_PatrickH]

Hello Rassul,

Thank you for your response.

I would store the difference of the X1 and X2 in a double and then use it for the Y2 when switching to the vertical line.

[russ123]

hello Patrick,

I dont think it can be done like this because x2 - x1 will give the number of bars across the x axis,not the actual distance in cm or inches.

for example, If the number of bars is 10 and i substitute this for the Y2 parameter, it will not work because adding 10 to a contract like the yen or the euro will be way too much. Even if i multiply it by the tick size, it will be inaccurate.

The only way to do this is by capturing the distance/length in cm or inches and then using that distance/length to get Y2.

other ideas that come to mind are
1) changing the slope to 90 degrees
2) see if it Is possible to draw a big square instead by just giving the parameters for the length of the square. One side is all you need for a square. Maybe there is a method to do this ?

let me know if you have any more input

[NinjaTrader_PatrickH]

Hello russ123,

Thank you for your response.

If it needs to be exact to the distance as viewed on the chart I would move to custom plotting via overriding the Plot() method. We have an example under Tools > Edit NinjaScript > Indicator > CustomPlotSample.