Hi guys
I'm in a position where I have about 100 surveys which I have to merge into one complete DTM. But we still need them as seperate DTM's.The surveys are delivered in dwg format and as excel sheets.
So far I've been importing the ASCI's with the Text Import Wizard, because the dwg's has tonnes of data in them. Each is about 35 mb, even though there are only 100 points in the file.
I know the good old merge surface command, but I need I smart way to merge multiple surfaces. Because if I have to merge them two at a time it will be a mess...
The best alternative is to try and merge the excelsheets and import them as one whole, but I don't think i'll be that satisfied with the result, plus it would take me a while to do so.
I'm up for good ideas :)
Sammi,
Sounds like they have you really busy there at COWI.. You have your work cut out for you.
Here is a suggestion:
If you have many ascii files then import them using a batch mode in InRoads survey.You should have a license.
Set up a Survey TIW and import using that template. This will create a single DTM. Then you can create a grid and use fences then Copy Portion of Surface into multiple DTM. Still a lot of work.
Or you can import ASCII using a Fence. This is automatic where the fence governs and limits the data imported.
But I agree with you that you may not get as good as a result than if the DTM is one large surface and then cut.
As far as batch loading graphics from ACAD file(s). Use the File > Import Surface > Advance. Set up a rule set and import in DWG mode. I have assisted other users in this process.
It works with some ACAD related exceptions. Some ACAD elements (objects) have non graphic data to describe the elevations of that object. They do not import correctly. This is a bit of a bear to deal with but easily edited when encountered.
HTH
Thomas