Autodesk InfraWorks

[#1]

IM 2013.

Using coordinate system: RSA-LO29/01

Extents needed (Y over 2 million):

Min … 86690,-2916160
Max … 87790,-2915140

result is .. error: Invalid Extents

The given extent does not intersect the defined boundaries of the model coordinate system! Valid extents must be in the range of [-194843; 0] - [194843; 1.00019e+07]

...

but...

IM does allow the import of data using these values .. just cant set the City Extent..

[#2 · Accepted solution]

The solution for users in RSA is to use the Lo-xx-WGS coordinate system to define the City Extent.

Only use the RSA-LOxx/01 coordinate systems for importing IMX from C3D designs (when the reverse sign method is applied in C3D)