Just in the last few days I have started having issues when creating alignments from objects.
I am building roads from plans for setout on site, I receive 2d linework and need to build the 3d road up. I join the required linework into a polyline so I can make a few checks that the lengths and so on are correct before I continue. Then usually I would just go and make an alignment from the polyline.
eg Monday I was setting up 3 intersections and dealing with 6 kerb returns on there. The first 2 created correctly, then when I created the 3rd one I couldn't see it. Then when I did zoom extents it was way off to the left and a mirror of the linework I was trying to create it from. It did it to a further 2 of them and the other 2 came out correctly.
Now it is doing to me when trying to create a centreline.
Is there some issues with what I am doing or what is going on?
Figured out what the issue was.
It was this annoying "Normal Z Value" thing being -1 for those arcs which were causing issues.
And to answer the question I create all my alignments from 2d data. I would so much prefer receiving 3d data, but that does not happen very often at all. They are too concerned that the data they might send will differ from the plans and I will use it without checking it first. Maybe they should just get it right in the first place.
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