Drainage and Utilities - Modify a Rim Elevation?

RE: Drainage and Utilities - Modify a Rim Elevation?

Benjamin Ankrom — Thu, 15 Oct 2020 18:39:24 GMT

Thank you Karl!

RE: Drainage and Utilities - Modify a Rim Elevation?

Benjamin Ankrom — Thu, 15 Oct 2020 18:39:16 GMT

Thank you Vincent!

RE: Drainage and Utilities - Modify a Rim Elevation?

Karl Dauber — Sat, 29 Aug 2020 12:08:38 GMT

Hello Benjamin,
as Vincent said, it's generally better to keep the inlet ruled to the terrain model. However, I agree that there are times when you want the rim elevation to be higher or lower than the terrain. If you know when placing the inlet that you want it to be a certain distance above or below the terrain, then you can specify a vertical offset. This maintains the rule to the surface. If you want to remove the rule to the terrain in order to specify the ground elevation manually, here is the procedure:

Using the Element Selection tool, select the inlet and select the Move manipulator handle and then follow the prompts to change the elevation reference (use ALT key) then remove elevation reference (use CTL key). Then reset to cancel the graphical move edit. You will now need to specify a ground elevation. You can then also specify whether or not to make the rim elevation equal to that ground elevation.

Note that once the rule is removed, neither the ground elevation nor the rim elevation will update if the terrain model is revised, OR if you move the inlet. Once you remove the rule, it's now up to you to ensure the ground/rim elevations are correct. Also note that you can restore the terrain model reference as follows:

Go to the Properties dialog, under the Utility heading, and select the ellipsis next to the Elevation Reference field to pick the terrain again.

RE: Drainage and Utilities - Modify a Rim Elevation?

vincent — Sat, 29 Aug 2020 10:00:06 GMT

The purpose of this setting is to allow you to update the Rim elevation, as mentioned in your first message.

If you need to edit the proposed ground, then would not it be better to update the proposed ground in the project file then reload your drainage file ?
This would allow coherence between models rather than having 2 values for proposed ground elevation...

RE: Drainage and Utilities - Modify a Rim Elevation?

Benjamin Ankrom — Fri, 28 Aug 2020 13:44:18 GMT

Vincent, I tried setting that parameter to "False", however i still cannot seem to edit the Ground Elevation. Is there any other thing I may be missing that you can think of?

Thank you!

Ben

RE: Drainage and Utilities - Modify a Rim Elevation?

vincent — Fri, 28 Aug 2020 08:23:04 GMT

Hi Benjamin.
In your printscreen just above the highlighted text there is the option "Set Rim to Ground Elevation".
Set it to false then you'll be able to adjust Rim elevation.