Looking for diagonal trendline alerts

Ameritrade's think or swim has good trendline alerts, but they're all horizontal.

I am looking for diagonal trendline alerts.
(where basically I can draw a line, and that would be the alert line.

I figure this must be pretty simple and easy enough to find.

Can you guys tell me where I can find something like this? Or ideally, i think or swim has something like this?


Thanks

 

http://www.esignal.com/

 

Ninja trader has them.

It's not hard to determine price at a bar of a line.

 

hmm I have several brokers but dont use ninja trader, is it worth it just to get ninja trader for this?(and does ninja trader cost money?)
if it does, does anyone know of a free alternative?

 

finviz.com for stocks - daily bars only on the free version.

 

NinjaTrader is free if you do not want to enable live trading from NinjaTrader.

Meaning, you could use NinjaTrader charting for free and use your brokers software for order execution. Of course this will only work if NinjaTrader supports your brokers data feed or you purchase a data feed separately, such as Kinetick.

 

ok, i just want to confirm then, so ninja trader does have diagonal trendline alerts?

as in I can draw the trendline, and it will tell me when the stock crosses it?