Issue importing XML to terrain model in OpenRoads Designer

RE: Issue importing XML to terrain model in OpenRoads Designer

Neil Usefara — Fri, 26 Feb 2021 19:39:01 GMT

We have drawings and data coming in from people who are using Civil 3D and if the .dwg that they send, isnt set at us survey feet in the 'insertion drawing units', then the .dwg cannot be referenced correctly in ORD. It's been a pain, but at least I figured that out. I cannot wait until we get rid of the USSF at the end of 2022.

RE: Issue importing XML to terrain model in OpenRoads Designer

Joshua Bradbury — Fri, 26 Feb 2021 19:06:57 GMT

yea no problem we just switched to this program so im also trying to sort out all of it but i have noticed that our coords an scale factor and units i.e. FEET an Survey Feet are a thing also!

RE: Issue importing XML to terrain model in OpenRoads Designer

Neil Usefara — Fri, 26 Feb 2021 15:36:36 GMT

I appreciate the response, Shawn.

Since I was starting off with a dgn that was exported from C3d, I did not set the coordinate system correctly once I selected Washington South USSF. I'm still trying to understand where exactly I went wrong.

Ultimately, it was a combination of the civil files set in "feet" under drawing utilities units, and me not selecting the correct option once selecting the correct geographical coordinate system. ORD notices that the data is in feet, but you have selected us survey feet, and it asks you what you want to do. I believe I was selecting the wrong option and because I did that, everything I did from then on was going to result in incorrectly projected data.

Thanks!

RE: Issue importing XML to terrain model in OpenRoads Designer

Neil Usefara — Fri, 26 Feb 2021 14:55:25 GMT

I appreciate the response, Chuck. Like I told Josh, above, it is the fact that in C3D, there are two units of measure location (like ORD). One is the GCS, which will state Washington South us survey feet (nad83), and then under drawing utilities > units > drawing units > insertion scale. The unit of measure listed there, needs to be USSF, otherwise if its set to feet, ORD pulls that unit and thinks the data is is international feet (from what I am gathering and understanding). So, what I did was, open the dwg in civil3d, then change that unit of measure to USSF, save as a different copy, then brought that copy into ORD. This time, ORD asked me to select what unit of measure the data is in, instead of telling me that it was in feet and not giving me any other options. Thanks!

RE: Issue importing XML to terrain model in OpenRoads Designer

Neil Usefara — Fri, 26 Feb 2021 14:49:28 GMT

Thanks, Josh. Just as my Gut was telling me, it was a foot to US survey foot discrepancy. ORD was thinking that the C3D file was foot and not USSF, therefore was correcting for that, but was incorrect. I think I am good to go now, everything is lining up. Now, time to re-do everything and write it down and take screenshots, so I can replicate next time!

RE: Issue importing XML to terrain model in OpenRoads Designer

Shawn Cooke — Fri, 26 Feb 2021 14:16:44 GMT

Yes as Joshua and caddcop indicate, best to know the data within the DWG if at all possible. (What state plane, datum, etc.) Using the Geographic tool (simply hit F4 search for "coordinate system" tool). will give you the option to assign a state plane to the file prior to attaching the DWG. Notice the list of state plane options have Foot/Meters, etc, so choose wisely. Once those are the same, your problem should be solved. If you don't know how the DWG was created (usually a data set from USGS or similar online source), most cases you'll be able to narrow down the choices based on the project state plane location.

RE: Issue importing XML to terrain model in OpenRoads Designer

caddcop — Thu, 25 Feb 2021 23:28:45 GMT

When attaching a DWG, you have a chance to select DWG units. You need to specify US Feet vs just Feet, which is actually International Feet. One work-around is to turn off True Scale in the reference attachment and then set the scale factor to 1:1.

RE: Issue importing XML to terrain model in OpenRoads Designer

Joshua Bradbury — Thu, 25 Feb 2021 21:53:27 GMT

Hi,

I might check out your coordinate systems? makle sure to lok at EDITDRAWINGSETTINGS in C3d and check if there is scakle factor applied an also check the Coordinate system your importing into also they should match or you can correct up the coord system in openroads im not 100% sure if its the correct coordinate or reproject but try both see iof that helps