Anders Blomberg Posted June 3, 2022 Share Posted June 3, 2022 I'm experimenting with using NURBS for defining curbs. I'm not in any way experienced in NURBS modelling but have spent some time looking through tutorials. Is there a way to give a NURBS as the one below a constant 1% slope along the line? Or a continuous slope between a +0 elevation in the beginning to a +1 elevation at the end? Or even a 1% downward slope for half of the line and 2% upward for the rest of the length (with a controlled vertical radius at the break point if one could wish 🙂)? NURBS.vwx Quote Link to comment
markdd Posted June 3, 2022 Share Posted June 3, 2022 Could you use the Grade tool to set the 1% slope along the distance you need and then from a side view rotate the NURBS curve into place. Alternatively, use the Grade slope geometry to create a Working Plane and then create the NURBS curve with that working plane set as Active. Quote Link to comment
Anders Blomberg Posted June 3, 2022 Author Share Posted June 3, 2022 I believe both those solutions will result in a slope that is just one directional? I'm hoping to have the slope along the line, including along curves. Drew some arrows below to illustrate. Or do I misunderstand you? Quote Link to comment
Tom W. Posted June 3, 2022 Share Posted June 3, 2022 Have you considered using a Polyline instead + the 'Station on Polyline...', 'Align Stakes Vertically...' + 'Create Roads from Stakes...' workflow instead? Quote Link to comment
markdd Posted June 3, 2022 Share Posted June 3, 2022 I did wonder if that was what you meant. Not sure what the soluton would be. I'll have a think... Quote Link to comment
Anders Blomberg Posted June 3, 2022 Author Share Posted June 3, 2022 @Tom W. I didn't know about that specific workflow so thanks for educating me! I did however use the road tool by itself and it's as close as I get to what I need at the moment. I'll experiment some more with it. I was however hoping to be able to control NURBS in the same way for use as site modifiers as well. @markdd Thanks! Quote Link to comment
Tom W. Posted June 3, 2022 Share Posted June 3, 2022 Cool. One note: the bug I identified over a year ago is still present. See this thread: After creating the road you need to disable then enable 'Create Pad for Site Model’ in the OIP in order to get it to rise up to meet the 3D Loci. 2 Quote Link to comment
Anders Blomberg Posted June 3, 2022 Author Share Posted June 3, 2022 I tried to create a retaining wall site modifier (red lines below) with the newly created road/curb but it doesn't seem to behave to well over a curved road. It was also created at the wrong level but moving it manually to the correct location was no problem. Anyone had any luck with the retaining wall site modifier with roads? Quote Link to comment
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