Beren, and anyone else who is interested,
We have two conflicting imperatives for the ship graphics; these follow from the box rule of a 200 ‘dot’ graphic picture width. One is to have the pictures ‘generally’ in proportion with one another, the other is to have sufficient detail for the dinkies (80 foot PTs etc). If we follow a strictly linear rule, this may, on the one hand, leave the PTs as a small gray blur on the background. On the other hand, if the scale were to give detail to the PTs, it would put a Porter in the same size (pixel) class as a New Orleans CA.
I have noticed that the great majority of interesting vessels fall in the 350’ to 780’ range. Thus, I propose a dynamic scale. 4 feet per pixel seems to work down to the destroyer classes, but begins to unravel for Clemsons, Wickes, Otoris, DEs, and especially PGs, PCs, MLs, and the like. I have also noticed that the odd ducks seem to cluster at about 80 to 90 pixels, relative. This is also (80 to 90) a reasonable scale for detail.
What I propose is a sliding scale; one scale for vessels between 80’ to 300’; a second scale for 300’ to 400’; a standard scale (4’ per pixel) for 400’ to about 760-780’, and a final by-guess-and-by-golly scale for the monsters. This method tends to compress the PC, PG, DE, and smaller DDs into the 86 to 90 pixel range.
The math goes like this, where “y” is the length of the ship in pixels (bit map blocks):
Y = (ship LOA)/8 + 44, for all ships up to about 350’
Y = (ship LOA)/6 + 32, for ships between 350’ and 400’
Y = (ship LOA)/4, for ships between 400’ and 760’ (std 4’ per pixel)
Y = (ship LOA)/6 + 64, for ships over 760’ (to a max of 820’)
This will give an 80’ PT at 54 pixels (not too bad) and a Yorktown with ‘some’ space fore and aft. I haven’t paid much attention to the top end, since my concern has been models of those ships in the 300’ to 500’ range, but I can refine the graph very easily. I can’t upload the graph (wrong format), but I can modify with the appropriate math input. I would appreciate comments. We should finalize this and cast it in stone for our project. Fewmets and rotten vegetables accepted.