@pulkomandy@mastodon.tetaneutral.net
Post #4270282
2026-07-30 09:34 UTC
@amanda@social.spejset.org
Given a polar coordinate (a = angle, d = distance):
x = d . cos(a)
y = d . sin(a)
Round as needed to get integers.
I'm not sure how people manage to make this sound complicated? Or do I misunderstand the question?
Replies (1)
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@amanda@social.spejset.org 2026-07-31 07:39
@pulkomandy@mastodon.tetaneutral.net they start introducing complicated interpolation or nearest neighbour etc in the ”plus rounding” part. I was hoping to use integer tables of precomputed numbers or something, which should be possible. It felt very ”this must have a solution that doesn’t take the shortcut past floats”. My supervisor works on floating point number verification and I have a phobia of floats now.