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Show HN: Geomatic – A command-driven geometry studio enabled with autodiff
54 points by nivter 10 hours ago | 13 comments
  • sowow
    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
    - 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
    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"
    • galaxy_quest
      You have to load the extension, the instructions are in the text above the button.
  • hbwang2076
    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.
    • james_marks
      As an adult, I now write clean error handling first thing.

      The person it benefits the most is the author, when they are building it and the errors-per-use are as high as they’ll (hopefully) ever be.

  • dmos62
    Pretty cool. Curious, why a one time payment? Why not, say, a smaller monthly payment?
    • sowow
      Not OP, but for me personally I’m tired of subscriptions. I’m grabbing the one time payment before OP changes his mind.
    • nivter
      Not a fan of subscription hell myself, I plan to use one-time payment for all my products. Implementation wise one time payment is much simpler than setting up smaller payments that cap at a fixed amount.
  • roger_
    Cool idea but not very mobile friendly it seems.
  • ddxv
    What is autodiff?
    • nivter
      Automatic differentiation. For any DAG with a scalar output, it allows calculating its partial derivative wrt the input parameters.
      • Rexxar
        I don't understand what the use automatic differentiation for in this context.
  • Armonsrer
    [dead]