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I am not sure how you create your breaklines.

I use LandDesktop 2005, and draw the breaklines as 3D lines from Point to Point using a Node Snap, so I know where they are. Perhaps you can edit that...

Have you checked the elevation of the top slope breakline near the spot height of 72, using ID of the endpoint of the breakline?

It looks to me as if the breakline elevation does not correspond...

Knowing how AutoCAD defaults to the angle precision set at the nearest degree, I was wondering whether being able to set a plus or minus half a degree to the angles would lead to other solutions.
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I have used CutePDF for years and still do for Word documents. But for drawings I am now using Dwg TrueView which produces layered PDFs. The other advantage is that it can convert other drawings down...

You are meant to marvel at how clever AutoCAD is in keeping the text legible.

The U factor is doing that. If you want to keep the text all going the same way, then replace the U with an R.

As I said before, but nobody seems to read what I say, use AutoCAD WS.

It is FREE and you can use Google maps for FREE.

You can also try AutoCAD WS

I did this and it still looks a bit bumpy in places. I use a polyline for tracing, with short strait legs and curve fit afterwards.

The advantages are that you can trace one detail and copy it...

In my experience, the drainage orifice of a bidet can only handle water and suds. (sorry for answering ReMark's question)

When drawing relative angles, I start with the first line, then Copy it on to itself. Then Rotate about the end point using the correct + or -, then adjust the length using Lengthen. And so on, and...

Perhaps for squatters?

Apologies for my previous answer. it was due to the fact that my brain skipped a couple of steps before my fingers hit the keyboard.

If A and B are parallel to the tangent line, then the median...

In fact, I have just spotted my deliberate mistake. :oops:

In the posted picture, the equation should be CA x CB = CD²

In fact, here is a link to do exactly that

O ye of little faith :lol:

I was expecting that you could create a graphical solution for the term CA x CB = CD², and that is why I put the (probably) at the end.

You have a rectangle with sides CA and CB. All you have to...

I was giving a general solution.

The case if the two points were parallel to the tangent line would be simplicity itself, because the angle at the circumference is half the angle at the centre. :D

I am afraid that JD Mather mis-read the latest request that was for a Geometrical solution, and his solution must be said to be incorrect.

After a bit of delving, I think that the Tangent-Secant...

I just tried that and it did not work for me. Could you please post a screen shot to show your construction? Thank you.

I am sorry that you do not like using the Layer Properties Manager, because what you want to do is very simple.

You click on the Layer that you want to copy, then click on New. The new layer has...

As this turns out to be an exam question, we can be sure that no such drawing existed on paper, only in someone's imagination :shock: