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Land XML from C3D07 to LD04

15 REPLIES 15
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Message 1 of 16
apweng
304 Views, 15 Replies

Land XML from C3D07 to LD04

Apparently the schema has changed.

We want to move C3D 07 data (surfaces and alignments) to LD 04.

Can anyone help?

Thanks,

Andrew
15 REPLIES 15
Message 2 of 16
Sinc
in reply to: apweng

The schema hasn't just changed, it is completely different.

You have to EXPORT the LandXML from C3D, and then IMPORT it into Land Desktop.

The hard part is getting your drawings to work in LDD 2004. We've discovered the best way is to first do an "Export to 2007" from C3D, then open the exported file and do an eTransmit to "2004 with Exploded AEC Objects". This is an INCREDIBLY annoying process, but it seems to yield the most-usable results.
Sinc
Message 3 of 16
apweng
in reply to: apweng

Thanks - we were hoping not to have to recreate the alignments and surfaces.

So from what you're saying Land XML is not an option here.

I will export the C3D drawing to an ACAD drawing and then save the ACAD drawing back to an earlier release. Then recreate alignments/surfaces in LD.

Thanks again for the info.

Andrew
Message 4 of 16
Anonymous
in reply to: apweng

While you will get an error message about the schema's being different, I
have successfully taken data for surfaces and alignments, including
profiles, between LDT3 & C3D2007 and back again. For the profiles, make sure
the names of the profile correspond to the allowed names in LDT, such as
center, L1, R3, LDitch, etc. I have not tried this with parcels, and others
have said not to even try it with them.

When the error message comes up, select to continue anyway.


wrote in message news:5556966@discussion.autodesk.com...
Apparently the schema has changed.

We want to move C3D 07 data (surfaces and alignments) to LD 04.

Can anyone help?

Thanks,

Andrew
Message 5 of 16
apweng
in reply to: apweng

Thanks for your help - I'll pass this info on.

Andrew
Message 6 of 16
Matt.Anderson
in reply to: apweng

Can I ask why you are converting it back to LD04?
Matthew Anderson, PE CFM
Product Manager
Autodesk (Innovyze)
Message 7 of 16
Sinc
in reply to: apweng

We deal all the time with engineers still on the 2004-2006 releases, and have to convert our C3D design surveys into a format that is readable for them.

It's a TERRIBLE hassle. We have to Export the XML, and in Colorado, that means it goes to US Survey Feet, which has repurcussions on the other end. On my end, the worst part is that in order to convert the DWG files, we've discovered that we have to first do an "Export to Autocad 2007" on each drawing we want to send, then open each of these new files and do an eTransmit to "Autocad 2004 with Exploded AEC Objects". Otherwise, the engineer gets a mess.

Then when the engineer gets the files, we have to step him through getting Land Desktop to read the XML as US Survey Feet, since Land Desktop has some bugs in this regard. Well, actually, first we usually have to explain XML, and listen to complaints about "Why can't we just do it the old way..." for a while. Once we get through that, I explain how to get Land Desktop to import the data without converting it to International Feet, and the engineer is usually good to go. A big hassle, but we've done it enough times now that I have the script memorized.
Sinc
Message 8 of 16
dana.probert
in reply to: apweng

it has been awhile since i opened LDT, but doesnt LDT have an extract Civil 3D data from objects tool? I wonder if that is worth anything.

Sinc- what was the "old way"? Did you send them a zip of your whole project directory?
Dana Probert, P.E.
Technical Marketing Manager, Civil Engineering
Autodesk
Blog: BIM on the Rocks
Learn More About BIM for Infrastructure
Message 9 of 16
Matt.Anderson
in reply to: apweng

Dana -

That is a good idea, however, I doubt that LD 2004 can read the 07 C3d Objects.

The only Issue that we have had was sending our survey's to Microstation users. The only way I could do it was to get it into Land Desktop and insert the old softdesk pointblocks. They didn't have a clue what LandXML was...

Have you considered leaving a copy of the surface with triangles on and exploding it?
Matthew Anderson, PE CFM
Product Manager
Autodesk (Innovyze)
Message 10 of 16
Anonymous
in reply to: apweng

Hi,

Without unduly knocking Microstation - it's a drafting package. Why would
you expect it to read a LandXML file?

The related Civil software has LandXML capabilities. As I have no
experience of file exchange between the AutoCAD world and the Microstation
world, I can't tell you how effective it is.

--

Laurie Comerford
CADApps
www.cadapps.com.au
www.civil3Dtools.com
wrote in message news:5560728@discussion.autodesk.com...
Dana -

That is a good idea, however, I doubt that LD 2004 can read the 07 C3d
Objects.

The only Issue that we have had was sending our survey's to Microstation
users. The only way I could do it was to get it into Land Desktop and
insert the old softdesk pointblocks. They didn't have a clue what LandXML
was...

Have you considered leaving a copy of the surface with triangles on and
exploding it?
Message 11 of 16
dana.probert
in reply to: apweng

what i meant was- you could open it in your version of LDT, extract the data and send it back "the normal way" whatever that might be.
Dana Probert, P.E.
Technical Marketing Manager, Civil Engineering
Autodesk
Blog: BIM on the Rocks
Learn More About BIM for Infrastructure
Message 12 of 16
Matt.Anderson
in reply to: apweng

The only reason I expected the engineer to know what LandXML is that he is an engineer in the Land Development business.
Matthew Anderson, PE CFM
Product Manager
Autodesk (Innovyze)
Message 13 of 16
dana.probert
in reply to: apweng

you might be surprised. 9.9/10 offices i go into have no idea what landxml is.
Dana Probert, P.E.
Technical Marketing Manager, Civil Engineering
Autodesk
Blog: BIM on the Rocks
Learn More About BIM for Infrastructure
Message 14 of 16
Matt.Anderson
in reply to: apweng

Well, let's put it this way, 13 out of 15 CAD people here don't have a clue what LandXML is either!
Matthew Anderson, PE CFM
Product Manager
Autodesk (Innovyze)
Message 15 of 16
Sinc
in reply to: apweng

The "old way" is they open the drawing, do "Check Points->Modify Project" to get the survey points in their project, and then create a surface from contours or 3D TIN lines.

Ugly, I know. But that's what most people want to do. The part that I hate the most is the dance I have to go to in order to create DWG files that they can use. I got used to simply "eTransmit" an entire Sheet Set, and I can't do that any more.

The other hassle is getting over the US Survey Foot issues in Land Desktop. C3D still doesn't really handle US Survey Feet correctly (they would have to make "Survey Foot" a base unit in Vanilla Autocad to fix all the issues), but it handles them better. That's not as big an issue as the DWG conversion, though.
Sinc
Message 16 of 16
dana.probert
in reply to: apweng

if those are the only issues at hand, what i might do is take it into land desktop for them before i export. it depends on if they are my client or i am theirs, how much i like them and how much of a PITA it would be 😉 But I'm all for a little hand holding if the situation warrants.
Dana Probert, P.E.
Technical Marketing Manager, Civil Engineering
Autodesk
Blog: BIM on the Rocks
Learn More About BIM for Infrastructure

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