Detect price on the trend line

[misova]

Imagine there is trend-line drawed by strategy.
Is there any comfortable way, how to get the price on the trend-line at specific bar?

[NinjaTrader_Bertrand]

misova, not directly unfortunately - what you could check via the DrawObjects collection and the IDrawObject interface are the anchor points for example as properties.

:http://www.ninjatrader.com/support/h.../nt7/iline.htm

A sample script as starting point that works with those tools to give alerts for manual drawn lines could be found here in our sharing - http://www.ninjatrader.com/support/f...d=4&linkid=472

[misova]

Thank you,
so as I think about it, then the only way how to calculate price of the trend line
on specific bar is to:

1. Calculate a linear function y = Ax + B from those 2 anchor points
2. and then use this function to calculate y-value (price) for other bars (x) ?

Do you think this is good direction ?

[NinjaTrader_Bertrand]

You are correct, sounds like a good direction to take to me.

[arbuthnot]

Thank you,
so as I think about it, then the only way how to calculate price of the trend line
on specific bar is to:

1. Calculate a linear function y = Ax + B from those 2 anchor points
2. and then use this function to calculate y-value (price) for other bars (x) ?

Do you think this is good direction ?

May I refer you to my post at:

http://www.ninjatrader.com/support/f...948#post385948

where the solution was to find the linear equation of a ray - effectively the same thing.

It sounds as if you have the math (good old coordinate geometry from high school !) but if you need a hand, please let me know.

As I said there, I've done precisely this recently and it's extremely effective - I'm able to get the level of the line at any bar.

Hope it all work out.