Graphic size

[masterus]

Hi,
I'm resuming work on the belgian train set and I wanted to know if there any rules for openttd sizes the ones I saw where really strange not really logical though
Why don't they simply use a 1px for 1meter or 2 or 4 insteed of all those conventions ??
Wathever I don't care even if it's strange could you give me a size chart pleazzee
And yep I'm noobish

[planetmaker]

There is no canonical size. The size of vehicles even varies on the direction you look at the vehicles, and especially among different sets. It also varies between vehicle types and especially in comparison to houses, industries, landscape, trees... a scale from 1px = 0.25m up to 1px = 50km (sic!) is acceptable

Just draw the vehicles such that they look good, that the largest vehicles are not larger than 32px long and ~8px high when looking at them from the side. Have a look at the many projects e.g. found at the DevZone (http://dev.openttdcoop.org)

[V453000 :)]

Just draw it as big as you like, but not too large so it does not glitch in the game

[TadeuszD]

As a general rule, OTTD doesn't guarantee, that vehicles longer than 32px will be displayed correctly. Longer vehicles generates glitches when passing tunel portals, bridges, depots and station buildings (ie. platforms).
You can use vehicles longer than 32px, but it needs more sprites and more coding to prevent most awful glitches.