I have a large point cloud area, but I only require a small section. The file is currently too large to work with.
Can I crop the desired area and create either a new *pod or DGN file?
Also, what is the best method of creating a surface/mesh?
The area is a railway line with an over bridge & general railway infrastructure e.g. gantries, signals, etc.
I Hope This Helps Someone Reading This! (Intergraph>PseudoStation>MicroStation user since 1980's)
Answer Verified By: Matt2003
George A. Martin said:Separate the Point Cloud till you have the area of points you want. Export/Save the resulting .pod as a ASCII file .XYZ or ,txt.You should be able to use the XYZ Text tool (Tools > Tool Boxes > XYZ Text) to import those points and use those points to generate a Mesh using the Mesh from Points tool.
MicroStation user since 1990 Melbourne Australia.click link to PM me
In a MicroStation 3D Model, go to the point Cloud dialog (File > Point Cloud).
Attach your Point Cloud (which will automatically convert it to a .pod)
Under "Edit" in the Point Cloud dialog, Clip the point Cloud to show what you want.
Go to File > Export (set the Export to Format = ASCII Files (*.xyz), Region Filter = Clip, set the Density to the % of points you want from the Cloud & OK
Go to the XYZ Text tool in M-Sta. (Tools > Tool Boxes > XYZ Text)
Go to the "Import Coordinates" tool in the Tool Box
Browse to the exported points file you created ?.xyz
Set the Import options to Point Element Order X,Y,Z and set the view > Process
It should bring the points in so you can use the "Mesh From Points" tool.
Hope I didn't miss anything. I have Descartes too, but there are additional Convert options to go to xyz.txt in M-Sta. alone.
You helped me in past a lot. Glad I can return the favor!
Brilliant thanks George!
I only knew about the pod its my default I didn't know I could use other options like the ascii.xyz
The import / export cords tool I use almost once a week for the last 20 years.. some weeks daily use...
Thanks again I am sure loads of users will benefit from the work flow described...
I'm sending a pdf of your post to myself at work for pasting into my mstn scrap book bible... volume 2 started 5 years ago.. half full now...
one day when I retire I'll publish it as a Best of Microstation book...