Comments on: Drawing a Hexagon in Processing / Java

By: Martin Braun

Martin Braun — Tue, 04 Jan 2011 19:00:26 +0000

Hello there, I have just been searching around the internet about how to do a Hexfield Strategy Game in Java. That really helps me a lot .

By: On a Procedural Environment and Tiles | Launch Zero

On a Procedural Environment and Tiles | Launch Zero — Sun, 17 Oct 2010 12:16:13 +0000

[...] creating the hex grid itself. The best resource I found for drawing hexagon tiles in Java was by Grant Muller. Clear formulas for creating a perfect grid and converting from x – y coordinates to row [...]

By: Eva

Eva — Mon, 23 Aug 2010 23:48:54 +0000

Thank you for this tutorial. It really helped us drawing a hexagonal tiling with canvas.

By: Glenn

Glenn — Mon, 26 Apr 2010 02:08:02 +0000

Thank you for this!

I've been trying to jog my memory on how to make a hexagon programmatically and this example in java did the trick!

By: Grant Muller

Grant Muller — Thu, 11 Jun 2009 21:32:33 +0000

Whoops! Thanks for noticing, luckily that only ended up in the post (my real code has the correct number of vertices). As far as using a constant instead, yeah, that'll save you some time if you're having to recalculate the lengths for animation, zooming in and out, what have you, my code only has to calculate that value once, so it wasn't going to help me much. As usual, trade-off between performance and code readability. Might wanna put a comment in your code that says "this is the value of sin(60)" so if someone else looks at it their mind won't be boggled trying to figure out what that incredibly huge value is.

Glad it helped.

By: Murmeister

Murmeister — Thu, 11 Jun 2009 21:02:48 +0000

Thanks for the math lesson. Don’t tell my geometry teacher I forgot about all this! I used the concept for a handheld game I’m developing and I noticed you have one too many vertices. It appears that you duplicated the 5th and 6th entries (a + c, 2 * b). I also chose to use a constant instead of having the processor calculate Sin(60) every time: 0.86602540378443864676372317075294. Ok, that’s a little too much precision, but you get the idea. Thanks again for the post. It got me going in the right direction.

By: Grant Muller

Grant Muller — Sun, 19 Apr 2009 03:30:35 +0000

That sir, is what its all about. Hope I saved you a mountain of time. With any luck, you’ll do some amazing thing that saves all of us a heap of time as well. Take care.

By: Chip

Chip — Sat, 18 Apr 2009 20:08:51 +0000

Wow – I googled “draw a hexagon in processing” and this was the first hit on the list. And it’s exactly what I was looking for. Thanks, Grant!