XYZ File Not Importing

[Anonymous]

All-
I am new to your forum and hoping somebody can help me out. I have provided the attached xyz file of a survey I did for one of my Archicad clients. They are trying to use the new Import Surveyors Data tool in ArchiCad 14 but it is not working. Can somebody try this on their machine and if you can make it work will you please tell me how you did it? and also can you please send me the mesh? The XYZ file is in international feet.

thanks
Thomas Gnauck

[Anonymous]

Wow fellas, can't thank you enough for that fix. I'm afraid I still need to expand my abilities when it comes to running commands in Terminal though. Nevertheless, it definitely looks like this has done the trick. After converting the "clean" file into a mesh, I overlaid an xref of the 2d contours and triangulation points (.dwg). Between the mesh and .dwg everything appears to match up perfectly. Bummer that AC can't handle the duplicated points. I sent an email to tech support as a heads up on the problem. Maybe a good opportunity for a future fix?

Many thanks for the expertise!

[Anonymous]

Tripp wrote:
After converting the "clean" file into a mesh, I overlaid an xref of the 2d contours and triangulation points (.dwg). Between the mesh and .dwg everything appears to match up perfectly.!

Ok, well maybe not "perfectly," but close. After working with gnauck a bit more on this, he was able to supply a "raw" version of the xyz file - which was effectively a cleaned up version (read: all duplicate points were eliminated) of the txt file. It converted into a mesh seamlessly. When overlaid on the mesh derived from Karl's "cleaned" txt file, there were some minor differences in triangulation as viewed in plan, which therefore leads me to assume there were minor differences in the mesh at the edges.

Hoping that gnauck will make a final post to help AC users communicate effectively w/ surveyor's to obtain a usable xyz file.

[Anonymous]

All-
Thanks for your help on this. Here is what happened (from the surveying standpoint) the original xyz file was a tin (triangulated irregular network) containing an x,y, & z for each triangle point - this is ideal for civil software because it takes into account breaklines, void areas, etc. but it results in numerous duplicate points for each triangle vertices. Still not sure if it was the sheer amount of points or the duplicates that caused the Archicad crash but the workaround was to use the raw xyz data from the survey without breaklines or voids. This approach reduced the point count to roughly 700 instead of several thousand.

thanks again
t.

[Erika Epstein]

t.
When you talk to your civil person, can you explain the problem and ask what you should be asking for, and then post back?

You are not the only ones who will run into this.

[Anonymous]

gnauck wrote:
use the raw xyz data from the survey without breaklines or voids

[David Maudlin]

Tripp wrote:
When overlaid on the mesh derived from Karl's "cleaned" txt file, there were some minor differences in triangulation as viewed in plan, which therefore leads me to assume there were minor differences in the mesh at the edges.

Not necessarily, two identical meshes can result in two different triangulation results, see this thread:
Mesh volume calculation accuracy?

David

[Anonymous]

Hi I am new Archicad user. Could anyone help me with editing Surveyor Data with new Import Surveyors Data tool? It edits data if there are just the tree colums x y z. Is there a way i can also put the name of each point automaticaly? If the first colum is the name of the point it does not insert anything. Thank you.

[NandoMogollon]

Hi All
It's a bit late for this comment but any way..... just for the record:

The number of points doesn't really affect the speed or the creation of the mesh I have done it with more than 15.000 points and still works.
Nevertheless I have found that txt files are more reliable than xyz files... I have not found the cause of this yet.

Regards

Nando