[Benchmarking] Minor questions about mapserver output

[Smith, Michael ERDC-CRREL-NH]

I'd hate to have to redo all the MapServer testing to add alpha. But I
could make a run of one type just to see if it makes any difference.

I'll let others who know comment about the content-length headers but my
uninformed speculation is that the content size is not known when the
header is generated.

Mike

-- 
Michael Smith

US Army Corps
Remote Sensing GIS/Center



On 9/4/11 2:39 PM, "Dane Springmeyer" <dane at dbsgeo.com> wrote:

>Comparing Mapnik png output to MapServer I noticed at Mapnik output is
>RGBA and Mapserver is RGB as reported by `file`:
>
>$ file 1_mapnik.png
>1_mapnik.png: PNG image, 415 x 514, 8-bit/color RGBA, non-interlaced
>
>$ file 1_mapserver.png
>1_mapserver.png: PNG image, 415 x 514, 8-bit/color RGB, non-interlaced
>
>Should I try to output RGB png's from Mapnik? I figure I could likely
>find a way to strip the alpha channel, though I doubt this would make
>much difference in performance of encoding either way.
>
>I also I noticed that mapserver does not set content-length headers.
>Curious, is there a reason for this?
>
>Dane_______________________________________________
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