EPSG:32630 is UTM Zone 30N ...
http://spatialreference.org/ref/epsg/32630/
A UTM coordinate system is defined for a limited area, a UTM zone has a
width of 6 degrees of longitude, in this case
EPSG:32630
WGS 84 / UTM zone 30N
WGS84 Bounds: -6.0000, 0.0000, 0.0000, 84.0000
It is very likely that you are getting random values from various PROJ
versions because your -116, -15 test coordinate is outside of the area
of validity of the EPSG:32630 coordinate system.
Daniel
On 12-04-23 9:39 AM, Juanma M. R. wrote:
Hi,
I have been doing more tests to try to identify exactly the problem and
I ahve realized that, according to http://twcc.free.fr/, the coordinates
returned when working with php_mapscript from version 4.10 are not
correct. I am trying to get where is the problem, so that I can decide
wether sorting out a The issue is that the function project returns
different things depending on the server configuration:
Input coordinates in Google Spherical Mercator:
(-20500513.477395,-3641436.
715144)
Server 1: proj 4.1.5 and MapServer 4.10 returns
(-90270074.105905,-216622133.8792)
Server 2: proj 4.1.7 and MapServer 5.6 returns
(-20500513.477395,-3641436.715144)
The World Coordinate Converter automatically transform the output CRS to
UTM 60S, so I can't not validate the transformation with it.
The issue is that I would like to understand the expected behaviour from
this function, so that I can go on checking it and defining the best way
to support the functionality or detecting a problem in servers
configuration.
The code is as follows:
function project($x, $y, $srsIn, $srsOut)
{
$pointObj=ms_newPointObj();
$pointObj->setXY($x,$y);
$pointObj->project(ms_newProjectionObj("init=".strtolower($srsIn)),
ms_newProjectionObj("init=".strtolower($srsOut)));
$xout=$pointObj->x;
$yout=$pointObj->y;
$pointObj->free();
return $xout.",".$yout;
}
?>
2012/4/16 Lime, Steve D (DNR) <[email protected]
<mailto:[email protected]>>
The transformation is done in place, I’ve not had problems with it.
What language? Can you post a code snippet?____
__ __
*From:*[email protected]
<mailto:[email protected]>
[mailto:[email protected]
<mailto:[email protected]>] *On Behalf Of
*Juanma M. R.
*Sent:* Thursday, April 12, 2012 4:13 AM
*To:* [email protected]
<mailto:[email protected]>
*Subject:* [mapserver-users] pointObj->project behaviour differences
from 4.10 to 5.6 versions____
__ __
Dear list,
I have a webgis application working with different CRS all over the
world. I have realized that the behaviour from version 4.10 of the
function pointObj->project differs from the one of version 5.6 from
Mapserver. For example, I try to convert (-116,-15) in 4326 and in
mapscript from version 4.10 it returns
(-26158630.407638,-25040425.679281) when passing to 32630. On the
other hand, in version 5.6 of mapscript it returns the original
coordinates without transforming them.
Is this intended or am I doing something wrong? Which is the
intended behaviour of project function in MapServer 5.6?
Best regards,
--
Juan Manuel Moreno Rivera.
University of Castilla-La Mancha
Albacete, Spain____
--
Juan Manuel Moreno Rivera.
University of Castilla-La Mancha
Albacete, Spain
_______________________________________________
mapserver-users mailing list
[email protected]
http://lists.osgeo.org/mailman/listinfo/mapserver-users
--
Daniel Morissette
http://www.mapgears.com/
Provider of Professional MapServer Support since 2000
_______________________________________________
mapserver-users mailing list
[email protected]
http://lists.osgeo.org/mailman/listinfo/mapserver-users
