parallel ray channel on log chart

[terryt]

Hi: Thanks for the drawing tools extensions in NT7.

I am trying to draw parallel rays to manually fit a growth channel on a log chart.

I can eyeball 2 independently specified rays. But it is difficult to make them parallel.

Am I missing something? Or is this a feature request?


also tried 1)
I did try to convince an Andrew's pitchfork to do it.
Controlling where the projected lines fall by moving the control points to arbitrary positions is a bit too tricky to do regularly. Also, on a Log chart the pitchfork lines are not parallel. So it wouldn't help me anyway.

also tried 2)
I tried to convince a regression channel to be a manually controlled channel. But I saw no mechanism to turn off the regression. Also, on a Log chart the regression channel does not plot parallel channel lines. So it wouldn't help anyway.

I don't know whether you consider non parallel channels on log charts of Andrew's pitchforks and Regression channels a bug or a feature. So I mentioned the behavior.

I would like to manually draw parallel channels on linear and log charts.
So I'm hoping that is a current feature and I am simply ignorant of how to do it in NT7.

Thanks,
-Terry-

Thanks,
Terry

[terryt]

I should have read the other posts from the weekend before my last post as this was already being addressed there. I'll move to there.