[Tilesathome] pngnq

[Matthias Julius]

Knut Arne Bjørndal <bob+osm at cakebox.net> writes:

> On Mon, Sep 29, 2008 at 08:21:11AM -0400, Matthias Julius wrote:
>> Stefan Sels <sels at tronicum.com> writes:
>> 
>> > On Mon, Sep 29, 2008 at 08:58:11AM +0200, Knut Arne Bjørndal wrote:
>> >> $pngnqversin = `dpkg -l pngnq || pngnq -V`
>> >
>> > good point. maybe you integrate it automatgic into the script?
>> > i just compiled it from source.
>> 
>> What prevents you from using the latest version (0.5-3)?
>
> The fact that it's not in most package systems? Requiring people to
> compile stuff from scratch was fine in the 90's.

It's in Debian testing since a while.  Don't know about Ubuntu.  I was
just assuming that since he has 0.5-1 the update would be available to
him as well.

>
> Is there a reason we can't use 0.4, btw? That's what's in both debian
> and ubuntu stable...

The client uses an option that is not available in 0.4.  The client
could be modified to work without that, but nobody has done it, yet.

One of the next items on my TODO is actually to try to use PerlMagick
for quantizing.  This would do away with the requirement for pngnq
completely and also save the start of around 2000 sub-processes per
tileset.  If PerlMagick does a good job of compressing PNG files we
can save the 2000 calls to pngcrush as well.

Matthias