City2BIM Georeferencing - dd-bim/City2BIM GitHub Wiki

With the help of the georeferencing functions, a superordinate (or local) referencing is transferred to the Revit project. The values to be set individually have an influence on various Revit parameters, which are explained in more detail below.

Further information on georeferencing in BIM and in particular in IFC (Level of Georeferencing) can be found here (link to GitHub repository). A tool for checking or changing the georeferencing in IFC files is also available there.

In Revit via the following icon you can access our georeferencing tool.

The actual tool looks like this:

We support the following use cases:

• Projected coordinates
• Elevation

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The input/ of the values has the following influence within the Revit project:

• Setting the project base point (Eastings, Northings)
• Storage of the coordinates as well as the data on rotation, scale and EPSG code as project parameters
• Consideration of the scale when importing geodata via the plugin (the scale is "calculated out", in Revit the scale is internally always equal to 1.000000)

Project base point coordinates, take over from:

• Eastings
• Northings
• Orthometric Height
• True North (adapted to Revit-XY)

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Possibility to enter a project height

• Setting the project height in the project base point