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Scaling-to-fit may suffer from float rounding artifacts #159

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sevaa opened this issue Aug 12, 2016 · 1 comment
Open

Scaling-to-fit may suffer from float rounding artifacts #159

sevaa opened this issue Aug 12, 2016 · 1 comment

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@sevaa
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sevaa commented Aug 12, 2016 •
edited

Uranium has logic to scale loaded meshes to fit into the printable area (in UM/Mesh/ReadMeshJob.run(), line 74 and below). Because of floating point math being inherently imprecise, the scaled mesh may still not fit into the printable area.

Please introduce a rounding tolerance factor to account for that. Forcibly multiply the calculated scaling factor by 0.99999 or something of that nature.
@sevaa sevaa changed the title Scaling to fit subject to float rounding artifacts Scaling-to-fit may suffer from float rounding artifacts Aug 12, 2016
@Ghostkeeper
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Ghostkeeper commented Aug 16, 2016 •
edited

Hmm, this one again. Our internal issue tracker says this was solved back in April. Must be a regression.

We have a bugfix planned for 2.4 and a rewrite for 3.1. I'll add this bug to be planned in as well.

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@Ghostkeeper @sevaa