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>is it possible to draw a trendline on the charts from
>low to high through some bars and then measure the
>distance from this line to the highest high bar and
>lowest low bar within the trendline length?
>after that, take the greater distance (to the high or
>low9 and create a trendline channel with the two
>parallel channels?
I assume you're doing this in code, not drawing stuff manually on a
chart.
First you would use TL_New to create a trendline where you want.
TL_New returns a trendline ID number. At the highest high bar and
lowest low bar, call TL_GetValue (using the trendline ID number you
got from TL_New) to get the value of the trendline on those bars.
Once you have the trendline value, you can calculate the distance.
To create a channel, you would use this distance to create two new
trendlines above and below the original one (using TL_New), offset
by this distance from the endpoints of the original trendline.
-Alex
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