We have version 4 which is not the latest. Theoretically you should be able
to take an old photo, and an old map and tell it the width of the building,
perhaps make a good guess as to its height, and feed in a set of
co-ordinates. Most of these programmes say you can feed in a misty sepia
print of a long gone structure and in two minutes you have a set of drawings
ready to reconstruct but I'm not sure you would! You need to see the same
points from a number of angles, and areas of photo outside your main set of
points can often appear at weird angles to the rest of it because you
clicked on a point a few mm out, which equates to half a metre in the real
world. I suspect any rectified photo is a bit of a 'work of art'.
There is an Autocad add-on which we are testing at the moment. Produced by
German firm kubit. Works on the principal that buildings are generally
vertical, so takes your photos and stretches them out as you go up. Cheaper
than a shift lens, if you can find one.