Thanks for the hint, but sorry no, does not change rewarping behaviour
of POLYGON or LINE Layers.
Distortion and missing parts do remain.
The odd thing:
The projection of all layers is ok if the BBOX equals or is greater than
max extension of the map.
i.e. BBOX=-6500000,-6500000,6500000,6500000 [proj=ortho units=m]
By "zooming" in i.e. reducing the BBOX the RASTER layer rewarps ok,
POLYGON and LINE layers do not.
Am 17.12.2013 16:11, schrieb Eichner, Andreas - SID-NLKM:
Looks like that causes the same effect as setting
PROCESSING "LOAD_WHOLE_IMAGE=YES"
-----Ursprüngliche Nachricht-----
Von: [email protected] [mailto:mapserver-users-
[email protected]] Im Auftrag von Heiko Schröter
Gesendet: Dienstag, 17. Dezember 2013 14:09
An: [email protected]
Betreff: [mapserver-users] Rewarping/Reprojection with GDAL and -wo
EXTRA_SOURCE parameter
To make use of it in mapserver a hint has been given in an old
mailing
thread (sorry, lost the source) to adjust the following code snippet
in
resample.c:
Version: mapserver-6.4.0
resample.c
<snip>
/* ------------------------------------------------------------------
-- */
/* Project desired extents out by 2 pixels, and then strip
to */
/* available
data. */
/*
--------------------------------------------------------------------
*/
memcpy( &sOrigSrcExtent, &sSrcExtent, sizeof(sSrcExtent) );
sSrcExtent.minx = floor(sSrcExtent.minx-1.0);
sSrcExtent.maxx = ceil (sSrcExtent.maxx+1.0);
sSrcExtent.miny = floor(sSrcExtent.miny-1.0);
sSrcExtent.maxy = ceil (sSrcExtent.maxy+1.0);
<snap>
Changing the -/+1.0 to -/+1250.0, for example, warps the RASTER image
correctly.
--
-----------------------------------------------------------------------
Dipl.-Ing. Heiko Schröter
Institute of Environmental Physics (IUP) phone: ++49-(0)421-218-62092
Institute of Remote Sensing (IFE) fax: ++49-(0)421-218-62070
University of Bremen (FB1)
P.O. Box 330440 email: [email protected]
Otto-Hahn-Allee 1
28359 Bremen
Germany
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