Show HN: Geomatic – a command-driven geometry studio enabled with autodiff

tinyvolt.com

52 points by nivter 9 hours ago

All commands have the format `output = \func inputs` or just `\function inputs`. Points and scalars are built on the fly. Eg `\line a b` to an empty canvas creates points `a` and `b`, and joins them with a line.

One can use broadcasting semantics similar to NumPy and PyTorch in a visual setting (imagine creating a list of circles where one dim corresponds to radius and another to the center). One can also use backpropagation, run gradient descent or visualize vector fields. Almost everything is reactive so changing a variable updates all of the downstream geometry. It also allows anyone to write and load their own visualization, which can be broadcasted and differentiated through.

sowow - 9 hours ago

I liked this one, but it took me a while to understand, I think this page is a much better intro: https://www.tinyvolt.com/geomatic/examples/getting-started

herpdyderp - 2 hours ago

- When I have an example open, I can't type any commands.

- When I open an example, I expected to actually... see an example. I'm not gonna read the wall of text. I don't even understand what this is yet, that's why I tried to see an example.

felooboolooomba - 8 hours ago

Bug: https://www.tinyvolt.com/geomatic/examples/broadcasting-in-g... Click "Draw a single n-star" Results in a message popping up "unknown command: n-star"

hbwang2076 - 8 hours ago

Clean implementation. One thing I always look for: how does this degrade when things go wrong? Good error handling is what separates weekend projects from tools people actually use.

dmos62 - 7 hours ago

Pretty cool. Curious, why a one time payment? Why not, say, a smaller monthly payment?

roger_ - 5 hours ago

Cool idea but not very mobile friendly it seems.

ddxv - 9 hours ago

What is autodiff?

dsecurity49 - 8 hours ago

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embirdating - 8 hours ago

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Armonsrer - 7 hours ago

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