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I agree with Neilw.... but shouldn't there be a way to change the style of a feature line (say from no display to some standard style) without completely rebuilding the grading? I'm not making any changes to the feature line itself.... I just want to turn it off and on without re-grading the entire site... (This wouldn't be an issue, except it takes quite a bit to update...)
-d
neilyj (No connection with Autodesk other than using the products in the real world)
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It is 2021 and this is still not available. I am inserting vertices to a feature line that is the base for a grading an I have to wait minutes between each point. Have been doing this for half an hour and managed to insert 2 points because you have to wait for the rebuild...
We need the gradings to update when we make changes. The problem is the performance of the software is making it take too long. Here it is 11 years later and we are still struggling with this horrible performance while we instead get new ways to make pretty presentations with Infraworks.
@Neilw_05 My suspicion is that the grading objects are built on ancient code and it wouldn’t look good to the shareholders if resources were diverted to fixing this. I am led to believe that performance issues are the current hot topic and they are looking at certain things in a bid to improve things.
@peterfarkas What are the specs of the machine you are using?
neilyj (No connection with Autodesk other than using the products in the real world)
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I absolutely believe the technology is fundamentally deficient and thus these issues cannot be fixed. That is why there have been no significant improvements in the grading tool issues since the beginning. The only solution is a new product.
I have a good machine. But I work a lot with earthworks that require complex grading objects that sometimes build on feature lines derived from each other. Also working with point clouds is becoming more of a standard so even when I simplify the surface especially for grading purposes has a huge amount of triangles still, so a lot of computation.
Otherwise I work on a good machine. But still things sometimes painfully slow.
Intel(R) Xeon(R) CPU E5-1630 v3 @ 3.70GHz, 3701 Mhz, 4 Core(s), 8 Logical Processor(s), 32GB RAM, NVIDIA GeForce GTX 1660
Unless something has changed recently, having a Xeon with all those processors yields very little benefit. Basically Civil 3D only uses one.
Bill
Hello,
I have found a workaround:
1. create a simplified surface from a square with the average elevation of the target surface, this will be our auxiliar surface: "AUX-AVRG ELEV".
2. replace this auxiliar surface as the new target in the grading (right click, grading editor).
3. move the feature line as you please, it should be a lot faster now.
4. change the target back to regenerate the actual grading (right click, grading editor).
I hope this was helpful
Hi
That is not a bad idea. Might try it next.
However since then I stopped using pointcloud surfaces. Too slow and result in crazy grading outlines (too much detail). When I need to create gradings, I decide on some precision based on what sort of area and/or project we are talking about and extract contour lines from the point cloud to create a grading target surface from those extracted contours. (Most areas I use 10cm contours which is well enough precision in most cases.) This way the gradings go real quick and the precision also doesnt suffer.
I use point cloud surfaces BUT I use Surface Simplication > Edge Contraction > 70-80% reduction and this grossly reduces the surface size while keeping the required DTM accuracy and all remains dynamic.
neilyj (No connection with Autodesk other than using the products in the real world)
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