[Xastir] GeoPDF

Derrick Brashear shadow at gmail.com
Mon Sep 5 17:44:56 EDT 2011


On Mon, Sep 5, 2011 at 4:28 PM, Tom Russo <russo at bogodyn.org> wrote:
> On Mon, Sep 05, 2011 at 02:16:29PM -0600, we recorded a bogon-computron collision of the <russo at bogodyn.org> flavor, containing:
>> On Mon, Sep 05, 2011 at 01:08:47PM -0700, we recorded a bogon-computron collision of the <curt.we7u at gmail.com> flavor, containing:
>> > On Mon, 5 Sep 2011, Tom Russo wrote:
>> >
>> > > This is better than just generating an FGD for the thing, because it'll mean
>> > > less work (and therefore faster map loads) for Xastir every time you display
>> > > it.
>> >
>> > Sweet...  Thanks Tom!
>>
>> Sigh... don't thank me yet, and don't bother using the script yet.  Somehow
>> the final step is producing a tiff file that gets a complaint from Xastir
>> about the compression not supporting random access, even though I'm using
>> PACKBITS exactly the same as USGS GeoTiffs use.  Got some more work to do.
>>
>> Could just turn off compression, but that seems such a waste.
>
> But in the interests of getting something that works into the hands of users,
> that's just what I did.  It's a puzzlement I can't deal with right now.  Try
> it now.
>
> The resulting images will be slightly larger than necessary, but not by much.
> I'm not sure PACKBITS really compresses all that much.

i had best luck with deflate (zip) with discriminator 1 for topos, 2
for aerials.



-- 
Derrick



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