openlayers - ImageMagick cropping large image into xyz tiles -

openlayers - ImageMagick cropping large image into xyz tiles -

i'm having big jpg, has resolution of x * 256 / x * 256. want cutting image 256x256 tiles naming convention {zoom}-{x}-{y}.jpg. in past i've used zoomifyexpress converter cutting , zooming. want 6 different zoom levels. i've started far command:

convert example.jpg -crop 256x256 +gravity -set filename:tile ./tiles/%[fx:page.x/256]-%[fx:page.y/256] %[filename:tile].jpg

this produces lot of x-y.jpg tiles.i don't know how can add together different zoomlevels. i'm relativly new imagemagick , feels basic thing do. can help me out. in advance.

i found solution:

i resize image appropriate size , crop it. first number in filename zoom level.

convert example.jpg -resize 256x256 -crop 256x256 -set filename:tile ./tiles/0-%[fx:page.x/256]-%[fx:page.y/256] %[filename:tile].jpg

convert example.jpg -resize 512x512 -crop 256x256 -set filename:tile ./tiles/1-%[fx:page.x/(256)]-%[fx:page.y/(256)] %[filename:tile].jpg

.. , on until reach highest resolution.

imagemagick openlayers openstreetmap zoomify