Isometric tile help

[pi]

I did some research and found on http://www.spriteart.com/main.html that this(fig.1) is the best shape in isometric construction because of the mathematically correct shape. But I can't seem to get them to fit properly. It seems to either grow or shrink in size(fig 2 and 3) when put them together.
 

Can you guys help me with this? I'd be glad.

Edit; Sorry for the bad quality on the picture but I hope you can see what I mean.

[ndchristie]

the problem arises from the shared outline.  the wway you are trying to puyt it together, your tiles dont overlap at all, so they are wonky.  the top 1px outline of each tile should cover the bottom 1px outlines of the two tiles above it.  hope this helps

[robalan]

Yep, what Adarias said.  Also, a helpful hint: never save pixel art as .jpg.  It corrupts the pixel-level detail horridly.  .gif and .png are what most people tend to use around here.  Welcome to Pixelopolis!

[pi]

I think i get what you mean; only one of the lines per direction(right and left) belong to the tile?

I illustrated the way I thought you meant, tell me if I'm right.



Also. You see I put the specifications in X and Y. But if this would be mathematically correct, wouldn't it be 32 and 16?

[Skull]

Also. You see I put the specifications in X and Y. But if this would be mathematically correct, wouldn't it be 32 and 16?

Yes.. you see, there needs to be two pixels on the top.. look at the outline, it's a 2x1 view.. with 2x1 at each side but 4x1 on top and bottom.

[pi]

I don't understand what you're saying Skull. Is it wrong?

[Skull]

I don't understand what you're saying Skull. Is it wrong?

Normally, I'd say yes, but What you've done with the dark at the top works together..

[ndchristie]

here is a picture to better explain, sorry im not v good with words



hope it helps, if you stay here for awhile youll find how much i <3 iso ^^

[pi]

Thank you guys. I get it now

[DrDerekDoctors]

Of course, they don't have to overlap. You could use tiles which are 1 pixel shorter, which means you don't get the horrid nobbly doubled-up bits at either side. That's what I used for Head Over Heels (ob-whore) http://retrospec.sgn.net/games/hoh/ss/moon5.gif. Certainly didn't have any tiling problems on that game.