Interactive map at:

• https://cittadhammo.github.io/chart-display/map.html?map-url=4NT.png

Simplify map at:

• https://cittadhammo.github.io/chart-display/m.html?map-url=4NT2.png
• https://cittadhammo.github.io/chart-display/m.html?map-url=parallels2.png

Tile map at:

• https://cittadhammo.github.io/chart-display/w-tiles.html?map-url=budDictTiles&width=14034&height=14030
• https://cittadhammo.github.io/chart-display/w-tiles.html?map-url=4NT2&width=7170&height=7170

vips dzsave 'imageName.png' imageName --layout google --centre --suffix .png --tile-size 256 --vips-progress

to create tiles

file imageName.png will give you the size of the original image