Identify if the price line is targeting a level from top or bottom

[Dario T.]

Hi, suppose to be in this scenario:

You have to test if the price has break an horizontal price line and you have to detect if the price/trend is coming from top or from bottom...

How can I do this ?

If I have to do it by watching the graph it is really simple but how can I code it ?

What can be the logic to determinate from where the price has arrived ?

Thanks to support

[William Roeder]

Dario T.:  If I have to do it by watching the graph it is really simple but how can I code it ?

Exactly as your brain does.

1. The candle is on both side of your line - it is crossing.
2. The previous candle is on one side of your line - trend direction.
3. Show us your attempt (using the CODE button) and state the nature of your problem.

[Dario T.]

Thanks William,

Actually I'm not working with candles... 

Suppose to detect it using a line chart based on candle closing time...

What can be the logic ?

May be I have to check if before the breakout I had a maximum then, I'n coming from High, if instead I had a mininum value, I'm coming from bottom...

Can it work ?