Unit Conversion Ratios
2025-10-11, 18:10 (This post was last modified: 2025-10-12, 9:30 by Hageta. Edit Reason: some typos and only use meter instead on metre )
2025-10-11, 18:10 (This post was last modified: 2025-10-12, 9:30 by Hageta. Edit Reason: some typos and only use meter instead on metre )
I am currently working on this issue that involves unit conversion to LDraw (currently all units are first converted to mm and then to ldu).
And I came up with the following conversion ratios:
[Micron/Micrometer(μm): 400μm * 0.0025ldu/μm = 1ldu]
Millimeter(mm): 0.4m * 2.5ldu/mm = 1ldu
Centimeter(dm): 0.04m * 25ldu/cm = 1ldu
[Decimeter(dm): 0.004m * 250ldu/dm = 1ldu]
Meter(m): 0.0004m * 2500ldu/m = 1ldu
Inch(in, ″): 1/64in * 64ldu/in = 1ldu
Foot(ft, ′): 0.001312336ft * 762ldu/ft ~ 1ldu
Please take a look if I got everthing right.
* everthing in [] is just here for completness, allthough micron is actually a valid unit in 3mf files.
And I came up with the following conversion ratios:
[Micron/Micrometer(μm): 400μm * 0.0025ldu/μm = 1ldu]
Millimeter(mm): 0.4m * 2.5ldu/mm = 1ldu
Centimeter(dm): 0.04m * 25ldu/cm = 1ldu
[Decimeter(dm): 0.004m * 250ldu/dm = 1ldu]
Meter(m): 0.0004m * 2500ldu/m = 1ldu
Inch(in, ″): 1/64in * 64ldu/in = 1ldu
Foot(ft, ′): 0.001312336ft * 762ldu/ft ~ 1ldu
Please take a look if I got everthing right.
* everthing in [] is just here for completness, allthough micron is actually a valid unit in 3mf files.