Hi, I've created a .3mx file using ContextCapture, and now I've attached it to my OpenRoads model and I've been trying to generate a terrain from it (.tin file)
I've tried to follow the instructions given in this video: https://communities.bentley.com/products/road___site_design/w/road_and_site_design__wiki/37308/video-import-3mx-data-into-openroads-designer-and-create-a-terrain
However, there is an error and I cannot figure out what is going on. It says: "Error occured during POD creation, processing aborted!"
I attached the image from my Open Roads error below:
I've noticed that my "Ground Extraction" is quite different from the one that is show in the referenced video above. In the video, the only output selected is "Terrain", "Classified Point Cloud" is not selected. However, if I do not select "Classified Point Clod" the software does not allow me to select "Terrain"
Could some one help me to go through this problem? What am I doing wrong? Could the problem be at my .3mx file which I generated by myself?
I guess you are using 2D DGN and caused the issue.
Create a new 3D DGN (from seed3d.dgn) and attach your 3MX file. Then try Extract Terrain again.
jing jing (o'.'o)
Thank you Jing Jing, that was my problem ! I'm really new at OpenRoads and OpenSite so I'm still not very familiar with this different seeds
Now I have a new question: when I created the .3MX file I also created a Point Cloud (.POD) and I saw that these points were not classified, so I wonder
1 - Is this terrain model extracted directly from the .3MX reliable?
2 - Wouldn't it be better to classify my Point Cloud to create the terrain model just from "Ground" points? How could I classify this point? Can I do it directly at OpenSite/OpenRoads our I should do it at ContextCapture Editor?
Thank you!
Glad that you can resolve it. The seed3D will be used in all surveying and terrain models. Other models for alignment, road and site design will recommend to use Seed2D as started.
1. "Ground Extraction Tool" seems extracted the low points from the 3MX model as seed points first and then create point cloud. Then, the terrain model (TIN) will be created based on the extracted point cloud cloud.
More details here.
docs.bentley.com/.../GUID-ED77B806-9EA3-4DBE-8867-79924F587528.html
2. The point cloud classification tool is under Bentley Descartes which is available in OpenRoads/OpenSite Designer or ContextCapture Editor. You can classify the point clouds; but seems manually to do.