Hello,
last december 2011 Astrid wrote a mail about the behaviour of RESOLUTION
and DEFRESOLUTION. We tested again with MapServer
6.2 and here are the results. The size of the symbols, texts and lines
was not like we expected. They were often too small.
Have a look at the mail from 14. december 2011
http://lists.osgeo.org/pipermail/mapserver-users/2011-December/071077.html
We tested with MAP.RESOLUTION=288MAP.DEFRESOLUTION=72, SIZEUNINTS
Meters, the scaled layers with SYMBOLSCALEDENOM 1.
http://localhost/cgi-bin/mapserv62b1?map=/data/umn/resolution/map/resolution_test.mapMAP.RESOLUTION=288MAP.DEFRESOLUTION=72VERSION=1.1.1REQUEST=GetMapSERVICE=WMSLAYERS=notscaledPoint,scaledPoint,notscaledLine,scaledLine,notscaledPolygon,scaledPolygon,Polygon_with_symbols,notscaledLabel,scaledLabelSTYLES=SRS=EPSG:31466BBOX=2517600,5672315,2518960,5673675WIDTH=2000HEIGHT=2000FORMAT=image/pngBGCOLOR=0xffTRANSPARENT=TRUEEXCEPTIONS=application/vnd.ogc.se_xml
The behaviour of MapServer 6.0 and MapServer 6.2 is just the same. This
time we have a demo project where we tried the different cases. You can
download it at:
UMN:
https://svn.wheregroup.com/download/mapserver_resolution.zip
PDF:
https://svn.wheregroup.com/download/mapserver_resolution_pdf.zip
Results:
POINTS
* scaled or not scaled Points/Symbols: displayed correct, scaled
and notscaled are the same in the map
LINES
* scaled lines: displayed correct
* unscaled lines: too small (1:2000, 1:5000, 1:1000), correct
(1:2)
POLYGON
* scaled Polygone/Outline: displayed correct
* not scaled Polygone/Outline: too small (1:2000), correct (1:5000,
1:1,1:2)
* scaled or not scaled Polygone with symbols: displayed correct
LABEL
* scaled Label: too small
* not scaled Label: too big (1:1000, 1:2000, 1:5000, too small
(1:2)
For us it would be good to get this problem solved, as at the moment we
generate a copy of the mapfile for the print with symbol- and labelsize
multiplyed with factor 4. It would be charming to solve the print with
one
mapfile. We could do testing and maybe I could look for sponsoring too.
Is there someone else interested to solve this? Is there a ticket already?
Thekla
On 14.12.2011 17:44, Astrid Emde wrote:
Hello,
we tried the parameter MAP.RESOLUTION AND MAP.DEFRESOLUTION with
MapServer 6.0.1 and made the following observations.
We tested with RESOLUTION=288MAP.DEFRESOLUTION=72
The size of the symbols and textes was not like we expected. They were
often too small.
We tested with and without the parameter SYMBOLSCALEDENOM
1.) without SYMBOLSCALEDENOM (none scaled, fix size) ok are:
* lines (not scaled) are dispayed correct (ok)
* outlines (not scaled) of polygones are dispayed correct (ok).
* symbols (not scaled) are displayed correct (ok).
* textes (not scaled) are displayed correct (ok).We tested not scaled
texts without SYMBOLSCALEDENOM: It's displayed different weather
MINSIZE/MAXSIZE is existing or not.
2.) with SYMBOLSCALEDENOM
NOT ok:
* Scaled symbols are displayed incorrect - too small.
* Scaled lines are dispayed incorrect - too small.
* scaled outlines of polygones are dispayed incorrect.
* Scaled text are dispayed incorrect - too small.
For us it would be good to get this problem solved, as at the moment we
generate a copy of the mapfile for the print with symbol- and labelsize
multiplyed with factor 4. It would be charming to solve the print with one
mapfile. We could do testing and maybe I could look for sponsoring too.
Is there someone else interested to solve this? Is there a ticket already?
Astrid
thomas bonfort schrieb:
cgi controls should do the trick?
http://../?SERVICE=WMSMAP.RESOLUTION=144MAP.DEFRESOLUTION=96
--
thomas
On Mon, Dec 5, 2011 at 17:43, Peter Hopfgartner
peter.hopfgart...@r3-gis.com wrote:
Basically, I am looking for a way to something analogous to
DEFRESOLUTION in
a WMS request. The standard says, that a pixel is 0.28 mm x 0.28 mm
(25.4/0.28 ~= 90.71 DPI). I could not found a way to change this in the
WMS
1.3.0 standard.
Is there a MapServer vendor parameter, similar to the one in GeoServer,
http://docs.geoserver.org/latest/en/user/services/wms/vendor.html#format-options
?
Peter
--
Peter Hopfgartner R3 GIS http://www.r3-gis.com
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