Thanks for your honest feedback, I appreciate that naturally yes there will be more efficient tools for professionals, however this one is more tailored towards enabling non-professionals where efficiency isn't the primary concern.

Quote Originally Posted by figheadair View Post
Why would you want to offer a plain weave or basket weave? And it is really suggesting that they could have cloth woven in a 3/3 twill?
For a bit of context here, this isn't a design tool designed specifically for weaving - it's for allowing people to design any tartan and have it woven, or alternatively printed on a mug / t-shirt / etc. The weave style preview would not have no bearing on an actual weave. That's the reason we offer sub-optimal weave styles, as it will just as a way of users to have a slight more control over how the lines intersect visually.

Quote Originally Posted by figheadair View Post
The biggest area for development is the graphics themselves. The plain weave and basket weave are represented the same, just in different sizes, whereas they are structurally different. Similarly, the herringbone graphic is wrong in that the weave does not reverse back and forward as a true herringbone does.

This graphic shows a 2/2 twill that transitions into a true herringbone.

Click image for larger version. 

Name:	HB.jpg 
Views:	15 
Size:	135.8 KB 
ID:	42536
This is very useful to me thanks, is there any consistency to how many threads are between each transition?
Ultimately I'm just a programmer, so am not familiar with all the weave styles that are physically possible, so your advice here is actually very informative in helping me make it more accurate.
I'd also be interested to learn how the Plain/Basket should actually differ too, or if there are other common styles I've overlooked (is houndstooth, for example, possible with tartan?)