pan zoom and row / column output

[lpatiny]

Pan zoom is really a fast module that allows to display 8000 x 8000 pixels image size (I tried with 10000 but it crashes ...). This still means that we need to create a 256 millions points array. This module therefore looks really nice to display similarity matrices and we could discuss here about possible improvement.

• a matrix as input variable ?
• possibility to define an array of colors with steps ?
• output for the hover / click, column / row.
  • object of array ? like : {r: [], g:[], b:[], a:[]}