How to get a trendline value at a special time ?

 

hi, i was just wondering if there is a special way to get a trend line value (OBJ_TREND) for example

trend line bar with shift=5

or should i use an afine function like y=ax+b ?

edit : i didn't search enough.


here is the solution

double price=ObjectGetValueByShift("MyTrendLine#123", 11);
 

Hi,

I am coding an EA that reads multiple Pairs and multiple timeframe.

That's why, I can not use  ObjectGetValueByShift to get value

I use function y = ax + b. While y = price and x = time.

double a = (y1-y2)/(x1-x2);
double b = y1 - a*x1;

 

After canculate a and b, I try to get price (y) of trendline at anytime

However, I can not get right value. 

Please support!  Thanks!