Hello everyone. I am facing a project requirement where I need to export IFC files with coordinate system details, such as IFCPROJECTEDCRS(‘EPSG:2326’,‘Hong Kong 1980 Grid System’,‘HongKong80b’,$,$,$,#123).
After reviewing a related discussion in the Community (How to export IfcProjectedCRS and IfcMapConversion - #7 by rtches), it seems that SketchUp might not currently support adding this parameter. I would appreciate any guidance from the experts here on how to include this information in the IFC files, either through a plugin or by utilizing other freely available software.
Thank you so much rtches! I can do add the ifcprojectedcrs information with ifcopenshell in python!
However, I have another question about the geo-location of the model.
I set the geographic location of the model in Model Info-> Geo-location, but after exporting it to an ifc file and put it into the BIM Vision for checking, the geometry global X, Y, Z are incorrect (I aim to make the X, Y, Z be 8xxxxx.xxx m, 8xxxxx.xxx m, 8xxxxx.xxx m). Do you have any idea on it? Thanks.
I personally would not move the model origin in SketchUp, better to have a local origin near the project. Better to add the geolocation afterward using the projected crs.
Check out this tool, it allows you to add the crs to an ifc4 model, and show it on a map for verification.
It would be really cool to be able to set the distance from Map 0 to project 0 in the ifc exporter, along the lines of this dwg exporter (toCad) from the Curic people, export options includes this:
