Hi, We have been given an opportunity to tender for a project which requires the provision of a BIM* model to be generated from a Laser scan. (*BIM in this case is largely undefined so it is assumed that a 3D model with systems and components identified should suffice) The project is quite interesting and involves an existing complex of bridges with different spans. All of which will be scanned before and the scans will be passed to us to create the model. Because the models need to be delivered in a Revit compatible format, we initially started looking at Revit. But due to our relative inexperience (compared with Bentley products) I don't feel too comfortable. Having assumed IFC is a Revit compatible format, we have now decided to look at the Bentley offering to see if there's a way to give the clients what they want while being able to use a system and set of procedures that are familiar to us. What Im looking for is to identify the best practice for such a task so we can prepare ourselves and be ready if/when the project drops. My initial (and very basic) thoughts are as follows... Using Descartes, bring point cloud into DGN and begin modelling using feature extraction tools Augment model with hidden features (internals) Open in AECOsim and apply corresponding families and parts. Export to IFC (mapping parts to corresponding IFC definitions) (IFC 2x3 or IFC 4???) Import into Revit (mapping IFC definitions to corresponding Revit Families) In the case above, we obviously need to ensure we have a like for like basis for the parts and families in AECOsim and Revit and this may take a bit of customisation. Also, the accuracy of the models need to be + 15mm. Aware this is a ContextCapture Forum but how would we be able to verify that we have achieved this level of accuracy within a Bentley Environment? Does Navigator allow clashing Geometry against Pont clouds? Thanks A
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