Winding Roads/Rivers, U shapes and Loops cause issues with point controls in Openroads.

RE: Winding Roads/Rivers, U shapes and Loops cause issues with point controls in Openroads.

PEvans — Fri, 20 Jan 2023 19:31:03 GMT

We've encountered this problem for years. The best way we have found to overcome this flaw is to model form the outside in instead of from the centerline out. Determine/estimate the maximum offset to each side and add a null point in your template to each side that is 30 beyond the maximum estimated offset. Point control the null points with the same constraints applied to the point controls that are failing in some locations, but make certain to leave the null point +30 beyond the maximum offset.

as an example: NULL_RT has horizontal constraint of 130 from the CL and a slope constraint of -2.00% from the CL

Change the parent of RT_Point (the one that isn't working as desired) to be constrained to NULL_RT. The constraints on RT_Point will be Slope=-2.00% from NULL_RT and Horiz=-10.00 from NULL_RT

By changing the horizontal constraint of RT_Point to NULL_RT the seek direction looks 'backwards' toward the centerline, so the point controls usually solve as expected, but you never really know. Software is like a box of chocolates.

hth

RE: Winding Roads/Rivers, U shapes and Loops cause issues with point controls in Openroads.

Shawn Cooke — Thu, 12 Jan 2023 16:12:41 GMT

Have you tried Target Aliasing? Here's a short video to explain how that may work for this situation. https://www.youtube.com/watch?v=kfhLA4DUqrQ

RE: Winding Roads/Rivers, U shapes and Loops cause issues with point controls in Openroads.

jpln — Thu, 12 Jan 2023 13:42:43 GMT

We may still have some issue so best is to provide file through a Service Request.

A quick test worked well from my side:

RE: Winding Roads/Rivers, U shapes and Loops cause issues with point controls in Openroads.

Justin Guiliano — Wed, 11 Jan 2023 17:46:47 GMT

Are you able to share the file/data? I see you have clearly delineated edges for the stream bottom, why not profile them and create a terrain incorporating surface templates? You could run the stream banks as linear templates on the edge. If you can share the file, I can try to work something up.