tms2xyz.sh

gistfile1.txt

#!/bin/bash
# rename TMS tiles to the XYZ schema
# no quoting, since all files have simple numeric names
# do not run this anywhere else than INSIDE your tiles directory

# run it like this: find . -name "*.png" -exec ./tms2xyz.sh {} \;

filename=$1

tmp=${filename#*/}     # remove to first /
z=${tmp%%/*}           # remove from first /

tmp=${filename%/*}     # remove from last /
x=${tmp##*/}           # remove to last /

tmp=${filename##*/}    # remove to last /
y=${tmp%.*}            # remove from first .

extension=${filename##*.}

let newy="2**$z-$y-1"  # calculate the xyz tile
#echo $z $x $y $newy $extension

# remove the echo if you are sure you want to do this
echo mv ${filename} ./$z/$x/$newy.$extension

I needed to run it like this: find . -name "*.png" -exec ./tms2xyz.sh '{}' \;

Thanks a lot ..
But take care - If your tile set is crossing the equator it possibly overwrites it's own files.
I've added a check if the target file exists and moved it to *.NEW in such a case and cleanup manually afterwards.
One could extend the script to run a second cleanup round though..

This program / method takes a LONG TIME if you are dealing with 9000 + .png files. It does an
-exec ./tms2xyz.sh
for each of the 9000 files.

I probably won't post it, (unless someone asks for it ) but I wrote a .php script ( I am an old php guy ) that does 9000 .png files must faster.

for the find / -exec ./tms2xyz.sh method for 8961 files ( each file executes the .sh script ) it took:
real 10m15.164s
user 5m2.127s
sys 5m28.776s

for my php script that runs one time and does something like:

        $cmd = "find 1 2 3 4 5 6 7 8 9 -type f -name '*.png'";
        $rc  = exec($cmd,$results);

        foreach($results as $thisone) { // code to convert to the correct xyz coordinats 
        .
        .
        .

        }

it took:
real 0m38.015s
user 0m14.388s
sys 0m24.345s

so 10+ minutes -vs- 40 seconds.

maybe 9000-ish files is not normal... it is for my stuff.

Anyway... if you do a lot of files.. this will work.. but the find -exec script.sh stuff is not optimal time wise.

Everyone likes python.. maybe someone can do a python script for this.... or a bash guy could find out a way to do a # directory ( there are 10 of them ) on a separate process so you can do 10 dirs at one time... instead of 1, then 2, then 3, then 4, etc... I've got an 40/80 core/process server that could probably handle 10 parallel processes ok.

• jack

Haha, yeah, this was a really dumb but working approach. :D

Asking for it if you still have it (:

Asking for it if you still have it (:

Asking for what? ;)