Hello,
assume you have a 40 years old archive of about 500 hand made projects. As they are both valuable and profitable, you want to convert them into a digital archive. About 4/5 of the drawings consist of projections that can be calculated on the fly by a BIM CAD, so the problem reduces to importing the 2d plots. You take someone in your staff and ask him to do this accurately. He takes an old project, make a tiff image out of it, then read the image with the CAD and... now what? The person comes back to you with a pesky problem: the slabs are curvy, hand drawn, and the conversion turns out to be really difficult and less than accurate. You are not allowed to change the original shapes: the digital version must be an accurate 1:1 import of the original. I recollect the similar problem occurring in the 80', when the CAD could only draw straight lines and we had to give up with the very idea of using a CAD. Twenty+ years later, the situation has improved, so much that you can draw a curvy slab directly on the CAD, but the problem is still pending when importing old projects. There is indeed a difference between drawing directly in CAD and importing from an old project, and the 1:1 conversion is a must. The conversion of hundreds of project makes the case for a rapid method. Then my question is, how would you solve this problem with AC10?