I am looking to convert an i.model (i.dgn) in a SnakeGrid format to a GIS .shp in British National Grid, using FME Desktop 2018. I have the relevant .dat file for the projection but am unsure how FME handles i.dgn files. Any help would be greatly appreciated.
Question
Is it possible to convert an i.dgn (i-model) to a GIS .shp in FME?
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+13- Safer
Hi @olivia2wd. Though I've never worked with the i-model format or SnakeGrid, let's see if we get you started.
Reading in your i.dgn: I see that the Bentley i-model Interchange Format Reader was in "Tech Preview" in FME 2018.x and released in FME 2019.x. See if you can add the i-model Reader to your workspace in FME 2018.
SnakeGrid to British National Grid: I found the SnakeGridProjector custom transformer developed by Snakegrid on FME Hub. It seems like you will need to purchase a license from SnakeGrid prior to using the SnakeGridProjector in FME. There's a helpful YouTube video on the SnakeGrid website demonstrating how to use the SnakeGridProjector in FME to convert a dataset into British National Grid using a .dat file.
I hope this helps. Let us know if you have any luck.
Thank you for your response @nampreetatsafe
I have tried reading in the i.dgn using the Tech Preview but it looks like various elements are unsupported. Unfortunately, I don't have 2019 to test:
Regarding SnakeGrid, you are absolutely right. It is developed by UCL. You purchase a license for the SnakeGrid transformer from them, and then use the relevant SnakeGrid parameter file (.dat) for the conversion.