This rectangular piece of knit, cut from an anti-static glove, has different resistance ranges, depending if you measure across the rows or columns of the stich.
The range of resistance across the columns of stiches is about 30K Ohm. The range of resistance across the rows of stitches is about 90 K Ohm. This means that it is hard to measure multiple rows across rows, because the resistance across the columns is so much lower and so the measurements are all too similar. Measuring multiple rows across columns is possible and is demonstrated in one of the videos below.
In another example I measure from all four corners. In both examples, the common ground or VCC is attached to a little worn on the finger touching the knit. At one point the finger cap was a bit inconvenient and so I exchanged it for a large metal nail (my eqivalent of a pen).
My code is very very primative, so I’m sure that a lot more could be done for the smoothness of the visualization here.
Videos on YouTube
Measuring from one side at four points across columns of stitches.
Measuring from all four corners.