I know this question has been asked before, but I have yet to find a good solution.
I am labelling offset/elevation at grade breaks in section views (many, many section views) for a proposed surface. For some reason, I am getting somewhere around 40 labels for a section that ought to have 5 or so.
Now, I have used the method expressed in this blog: http://civilfastforward.com/?p=383 which uses expressions to make label text extremely small if a section grade change is below a certain amount (i.e. less than 2%).
While this is quite clever, it does not work if the labels are set to stagger. The taxt may be small, but the stagger extension lines still appear! So now, I just have a ton of crooked lines all over the place. Also, for whatever reason, labels still appear in my sections for non-existent grade breaks on flat sections (and I mean FLAT, no change in elevation, whatsoever).
I know that I can turn the visibility off for labels that I don't want to see. But I have a lot of superfluous labels and every time I change the surface I'd have to go back through all of the sections and turn the unwanted labels off again, one by one.
Has anyone come up with a better solution to this problem? I've done quite a bit of searching and everyone seems to point back to using expressions, which seems like a half-fast work around that doesn't actually work that well.
Is there a way to fix my surface so that AutoCAD doesn't find grade breaks everywhere? Surface smoothing? Reduce section view precision?
Why isn't there a weeding parameter based on SECTION GRADE CHANGE for grade break labelling, and only a weeding factor based on DISTANCE? This would be incredibly helpful feature (I'm talking to you, Civil 3D creators!).
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