All
I am in PRT SS4 (have now switched as I have a W10 machine) and am looking for some help with alignments/ cross sections
When I import my alignments from my ALG file into the DGN using the "Import form InRoads Memory" tool, I get two elements on import.
- A complex element which represents my CL alignment from ALG (feature definition as per my XIN)
- A 3D linear element which represents the horizontal and vertical alignments as per the civil geometry (no idea where this feature is controlled from but it is not as I expect)
From what I gather the 3D element is for corridor modelling - which is grand, but after creating cross sections and trying to use associated cell placement tools using the 3D linear element, the software returns "alignment not found" when trying to place cell/blocks on cross section sets.
I am stumped. Is there a better solution to this? Perhaps you simply don't use the cell block tool and use populate to place sleepers in 3D?
Would like to hear some thoughts on this? I could be doing something wrong but I would like to understand more than anything else.
Thanks
A
As I understand you got 2 elements in the same model, a 3D model, which is not the best workflow. For any design I strongly advise to work in a 2D model. When creating a new drawing, use Inroads-Seed2D.dgn. Use the 3D for terrain model. When using a 2D model by default, Rail Track SS4 creates a 3D model as soon as you perform a command that is "3D". One is set the active terrain model, others are those available from Vertical Geometry taskbar.
When you import from the ALG, import in the 2D model. The civil geometry is created with rules if possible. Some alignments from ALG could not create Civil Rules depending of complexity but in this case there is a warning. A 3D linestring is created in the 3D model if the alignment has an active vertical alignment. Note that by default the 3D model is referenced in the 2D model. Most of the time I hide the 3D model from the 2D.
Corridors must also be created from the 2D model, picking the civil geometry.
Place cell/block tool is using the alignment from the ALG and not the 3D linear or the civil geometry. If you imported the civil geometry from the ALG you've got both so no problem. If you created the civil geometry only, you have to first export it to ALG to use the command.Both annotated alignment(s) and alignment used to create cross sections must exist in the ALG, even just temporary just to annotate.
Hi,
I am having the same issue, not being able to place a cell. I used a 2D model to import the geometry from an ALG file. The cross section are correctly ploted but the cells cannot be placed, it keeps saying 'Alignment not found' is there a way to sort this out?
I suspect there is a mismatch between the alg and the civil geometry. You can delete the geometry from the ALG then export the civil geometry to be sure they are correctly linked.
Jpin, thank you, It is sorted now. The issue came from the name of the alignment being too long. As soon as the name of the alignment was changed (reducing the number of caracters) the cells were placed ok. I spent a lot of time trying to figure out the reason and it was as simple as that.