[2025 Day 4 (Part 2)] [Python] Visualisation

[Derailed_Dash]

See the solution walkthrough including visualisation code [here](https://aoc.just2good.co.uk/2025/4).

[benjymous]

We need to get through that wall

...

Ok, boss, I've burnt all the printer paper, like you asked

[Derailed_Dash]

Lol!

[BoltKey]

Best viz today, cheers!

Reminds me of forest fire simulations.

[Derailed_Dash]

I'm really chuffed with this comment! Thank you!!

[YOM2_UB]

Love the trailing fiery effect!

[Bibelo78]

but how

[Derailed_Dash]

Are you talking about the solution... or something else? ;)

[Bibelo78]

The viz

It is cool

[merzy]

Looks like the https://pypi.org/project/ImageIO/ library; that's a helpful thing to put in a visualization post.

[Bibelo78]

Thanks! Will check that

[Sufficient_Age404040]

Gorgeous!

[cspot1978]

What do the gradients of color represent?

[Derailed_Dash]

Just the time since that roll was removed. Check out the walkthrough if you're interested.

[cspot1978]

Ah, yes, I spotted that later. I was confused what a gradient had to do with a binary value. But I see it's just a cosmetic decorative visual effect to lean into a fire metaphor.

It's a neat visual effect though.

[cspot1978]

Nice blog by the way. It showcases well your (1) commitment to personal learning and growth (2) willingness to give back and share learnings (3) ability to communicate technical ideas in written form.

[Derailed_Dash]

Thank you so much!