maximum alignment length?

[cadtag]

Is there such a thing? I'm bringing in a uStn DXF file, with an alignment (contiguous lines and arcs) starting at 450+00 and extending to 1630+00

I can create the alignment by selecting the objects, and grips show up the entire length of the baseline, but it will only label up to 1037+76.39', and alignemnt properties shows that as well.

c3d 2014

[BlackBox]

Just tested here, and was able to manually stretch the Alignment to be 450+00.00' to 4945+34.59' without issue (all incremental station labels are shown).

Civil 3D 2014/2015, Windows 8.1

[cadtag]

Interesting. I'd accept rounding errors from the conversion from ustn to dxf to dwg to c3d, but it doesn't explain why the alignment grips went to the end, but the alignment didn't

What happens when you try to convert this to a c3d alignment?

[BlackBox]

Interesting. I'd accept rounding errors from the conversion from ustn to dxf to dwg to c3d, but it doesn't explain why the alignment grips went to the end, but the alignment didn't

What happens when you try to convert this to a c3d alignment?


I inserted your drawing into my QNEW, isolated the CLConst_dp layer, used PEDIT to make a Polyline for CL, and cleaned up the linework a bit... There was a 0.0003 gap near 1037+76.39, and I also had to replace the R2850' arc with a FILLET of same, in order to create a contiguous Polyline... Then converted to an Alignment without issue.

96363

[cadtag]

yep -- same steps I took to get a working alignment by converting to a continuous pline. (I just used fillet of zero to join the straight segments the interesting part though, is that just creating an alignment from objects as they came from the uStn created a graphically as-expected alignment, running the full length if the uStn linework, but the _properties_ and labeling did not match the visible linework.

[rkmcswain]

FWIW - I was going to say, whenever I've seen alignment issues like this (for myself and others), it's always been an issue where the is a gap in the entities - even if it's very tiny.

[Jeff_M]

Besides the small gaps causing issues like this, a segment drawn up station to down station will also stop the stationing dead in it's tracks. Using the Reverse Segment Direction will usually fix this issue.