Following the techniques used in Setting Up in the Real World – GeoReferencing Update, a similar approach uses individual facility/building footprints as the guiding geometry. This allows the individual facilities to be moved around independently by updating their geographic transform or if plan position is fixed allows the z height to be adjusted using the reference Z offset value Having created the site plan,…

This article is an update of the earlier Setting Up in the Real World – GeoReferencing piece with a slightly simplified workflow to create the transformed GCS and using different example data. Background The accuracy of 3D modelling operations can be affected by the limitations of floating point arithmetic. This is a fundamental limitation of current technology. When many complex calculations are involved rounding…