[mkgmap-dev] [PATCH v1] Optimize filters for shapes

Thu Jan 17 21:14:05 GMT 2013

Hi Gerd,

> Hi WanMil,
>
> I've committed the change to the RemoveEmptyFilter, but not the change
> to RoundCoordsFilter.

Good.

> After I added switch so that your change did not handle roads the effect
> was near zero.

What do you mean with effect? I think that you cannot measure the effect 
just by checking the img file sizes.

I observed that the RoundCoordsFilter is far away from being a good 
filter for polygons. The patch did not fix all these problems but it was 
a first try to improve things. So it's ok not to commit it but the 
problem still exists that the filter is suboptimal.
I think it does not make sense to focus on the result of a single filter 
without analysing what the other filters are doing the with its result. 
On the other hand it doesn't hurt trying to optimize each filter.

>
> Ciao,
> Gerd
>

WanMil