Why are the IFC models not displayed correctly?
We use our third-party provider Autodesk Forge for the model viewer.
I have placed two or more models on top of each other in smino, but one model is not rotated correctly.
For the problems related to model alignment, please check the IfcDirection values of the IfcProject's IfcGeometricRepresentationContext. So if the IfcDirection values of the IfcProject's IfcGeometricRepresentationContext are not (1,0,0), (0,1,0) or (0,01), your model will be considered rotated to true north and the model orientation will be changed by the angle to true north.
The IFC model should be rotated by the true north angle - If your IFC model was exported from Revit, please make sure that the coordinate base during export is either survey point, project base point or release coordinate.
The IFC model should not be rotated by the true north angle - If your IFC model was exported from Revit, make sure that the coordinate base is the internal origin during the export. If for some reason you cannot re-export the model from the RVT source file, try changing the IfcDirection values of the IfcProject's IfcGeometricRepresentationContext with a text editor.
If the IfcDirection is a 3D vector (x,y,z), please try to change it to (1,0,0), (0,1,0) or (0,01) for each direction accordingly.
If the IfcDirection is a 2D vector (x,y), please try to change it to (0,0).
You can find more information about the IfcGeometricRepresentationContext from here.
Error message in the preview
If the preview is not displayed correctly and contains such an error message, either the driver of your graphics card needs to be updated or the model is too large.
I have placed two or more models on top of each other in smino, but one model is not rotated correctly.
For the problems related to model alignment, please check the IfcDirection values of the IfcProject's IfcGeometricRepresentationContext. So if the IfcDirection values of the IfcProject's IfcGeometricRepresentationContext are not (1,0,0), (0,1,0) or (0,01), your model will be considered rotated to true north and the model orientation will be changed by the angle to true north.
The IFC model should be rotated by the true north angle - If your IFC model was exported from Revit, please make sure that the coordinate base during export is either survey point, project base point or release coordinate.
The IFC model should not be rotated by the true north angle - If your IFC model was exported from Revit, make sure that the coordinate base is the internal origin during the export. If for some reason you cannot re-export the model from the RVT source file, try changing the IfcDirection values of the IfcProject's IfcGeometricRepresentationContext with a text editor.
If the IfcDirection is a 3D vector (x,y,z), please try to change it to (1,0,0), (0,1,0) or (0,01) for each direction accordingly.
If the IfcDirection is a 2D vector (x,y), please try to change it to (0,0).
You can find more information about the IfcGeometricRepresentationContext from here.
Error message in the preview
If the preview is not displayed correctly and contains such an error message, either the driver of your graphics card needs to be updated or the model is too large.
Updated on: 07/08/2024
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