[ka-Map-users] can 2 map files share a cache for a specific data group

[Steve Walker]

In response to the OP's question I have one idea along the lines of
Lorenzo's code below - (sorry I don't know how to keep the thread all
together after time has elapsed between postings)

Original Question Was:

=== SNIP ===

is it possible to have two map file choices in ka-map, each with different
groups of layers, where one group is in common to both map files and the
kacache for that group is shared by both maps?

=== SNIP ===

It is pointed out below that the parent cache directory for each map is
set using the $szMapCacheDir variable.   It turns out that $szMapCacheDir
is itself set in config.php using the map name ($szMap) variable:
  $szMapCacheDir = $szBaseCacheDir.$szMap;

Changing this line of code, to something like






==== SNIP ====

if I remember right, in tile.php you have:

$szCacheDir = $szMapCacheDir."/".$scale."/".$szGroupDir."/".
$szLayerDir."/".$szMetaTileId;

just force $szMapCacheDir as a string of the same value, es:

$szCacheDir = "MyCommonMapDir/".$scale."/".$szGroupDir."/".
$szLayerDir."/".$szMetaTileId;

naturally all other params have to coincide.

This is pretty useful to reduce the total amount of cached layers,   more
then ever with raster layers.

ciao
Lorenzo