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Tiling the map is a good idea, but the problem is the symbology and
label that are drawn between 2 tiles,<br>
with a buffer can't be possible why there is no possibility to know
how the symbol or text will be.<br>
<br>
I'm trying to configure php mapscript to output directly in pdf with
CAIRO but with no success.<br>
<br>
MapServer version 6.1-dev OUTPUT=GIF OUTPUT=PNG OUTPUT=JPEG
SUPPORTS=PROJ SUPPORTS=AGG SUPPORTS=CAIRO SUPPORTS=FREETYPE
SUPPORTS=ICONV SUPPORTS=WMS_SERVER SUPPORTS=WMS_CLIENT
SUPPORTS=WFS_CLIENT SUPPORTS=GEOS INPUT=POSTGIS INPUT=OGR INPUT=GDAL
INPUT=SHAPEFILE <br>
<br>
setting output format driver CAIRO/PDF mimetype application/x-pdf
imagemode RGB and extension pdf i get this error:<br>
<br>
[MapServer Error]: msSaveRasterBuffer(): unsupported image format<br>
<br>
Failed writing image to /tmp/4ed5e30c_4d9_0.pdf<br>
<br>
In php i have the support of pdflib lite enabled (PDFlib GmbH
Version 7.0.5)<br>
<br>
Is there something particular in the configuration that I'm missing
to get pdf output work correctly?<br>
<br>
Thanks in advance<br>
<br>
Daniele<br>
<br>
<br>
<br>
Il 29.11.2011 19:00, Adam Eskreis ha scritto:
<blockquote
cite="mid:CAGj+44ESkcLWT9aKGu9+pCYKC4Vz=+p0yGOqgJ_7WH=LWHYHhQ@mail.gmail.com"
type="cite">Why don't you try requesting the images in a
tile-based manner so that the requests are managable, and then
weave them together in your software? Mapserver isn't intended to
pull in tiles that big. You should be able to pull in 2048x2048
tiles just fine.<br>
<br>
-Adam<br>
<br>
<div class="gmail_quote">On Tue, Nov 29, 2011 at 10:51 AM, Stephen
Woodbridge <span dir="ltr"><<a moz-do-not-send="true"
href="mailto:woodbri@swoodbridge.com">woodbri@swoodbridge.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex;">
<div class="im">On 11/29/2011 10:02 AM, Daniele Debernardi
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
The solution is not pumping up the memory limit of the
server, because<br>
if i get 2 request at the same time<br>
I still have memory problem.<br>
</blockquote>
<br>
</div>
It sounds like you have not adequately sized the server for
the tasks you are asking it to perform. Mapserver is designed
for performance so that it can handle requests quickly and
free up the memory it is using for the next request. If you
start swapping or paging data to disk that slows down all
processes and can overwhelm the system with too many slow
requests that are all consuming memory and not exiting as fast
as new requests are coming in.<br>
<br>
If you are making an enhancement request for say making
mapserver use less memory and temporary disk files or swap
space at the cost of performance, then you should add a ticket
to the tracking system. This is not a short term solution.
<div class="im">
<br>
<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
Which is the best way (output format) to generate high
resolution map<br>
images with full symbology support?<br>
</blockquote>
<br>
</div>
I defer to Thomas on this one. But he has already mentioned
that probably doing something like direct pdf output and
converting any pixmap symbols into scalable symbols is the
best way to go.<br>
<br>
-Steve W
<div class="HOEnZb">
<div class="h5"><br>
<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
Il 29.11.2011 15:49, Stephen Woodbridge ha scritto:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
On 11/29/2011 3:20 AM, Daniele Debernardi wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
Hi,<br>
with mapserver trunk version (but i think with
others too) I have to<br>
generate very big map to be imported in a pdf file.<br>
I use php mapscript to generate maps with 300 dpi
for an A1/A0 pdf page<br>
or bigger.<br>
This mean that the map has dimensions like
15000x25000 pxl and when I<br>
call the MapObj->draw method i get this error:<br>
<br>
PHP Warning: mapObj::draw(): [MapServer Error]:
agg2CreateImage():<br>
mapagg.cpp: 708: Out of memory allocating 1550851152
bytes.<br>
<br>
Map server is configured with the AGG/PNG driver
with imagemode RGBA.<br>
<br>
Is it normal that need so much memory to generate
the image?<br>
</blockquote>
<br>
Just for the image buffer you need 15000x25000x4
pixels = 1500,000,000<br>
and AGG might actually allocate a slight larger image
buffer so it<br>
does not create edge effects while antialiasing
objects close to the<br>
edges. So the above request does not seem
unreasonable.<br>
<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
I already tryied the php ini_set memory_limit but
with a limit of 2048M<br>
i still have some problem with memory.<br>
</blockquote>
<br>
Try setting the limit a little higher like to
2564-3072M can see if<br>
your memory problems go away. Of course this assumes
you have a system<br>
with a lot of memory.<br>
<br>
-Steve W<br>
<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
I checked other possible outputs but generating maps
in pdf through<br>
Cairo driver but doc says that polygons filled with
symbols are not<br>
supported, and for that reason I cant use it.<br>
SVG output has some limitations too like line drawn
without symbols or<br>
pixmap symbols not supported.<br>
<br>
Is there a better way to generate so big map images
and imported in a<br>
pdf file?<br>
<br>
Hope you guys can help me.<br>
<br>
Daniele<br>
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