Finally good news.
When I changed the WMS layers to TMS objects there is no offset, everything
fits just as desired.
It is not optimal, but fortunately TMS layers are fine in most cases. Where
I need other, WMS specific things such as GetFeatureInfo, GetLegendGraphic
I cannot use TMS and in these cases I still have to use WMS.
Best, and thanks for the help!
Gergely
2014-05-27 13:32 GMT+02:00 fegyi001 <[email protected]>:
> That's right, but since I sent the previous mail I also noticed that the
> Map object's extent is different that in GeoServer. I modified it, but
> still didn't solve the problem.
>
> Gergely
>
>
> 2014-05-27 13:17 GMT+02:00 Arne Kepp-2 [via OSGeo.org] <[hidden
> email]<http://user/SendEmail.jtp?type=node&node=5142698&i=0>
> >:
>
>> Hi,
>>
>> If you look at the GridSet definition (in the screenshot, attached to
>> your email), you / GeoServer have defined the extent of the GridSet to be
>>
>> [422251.0, 48437.6 ,950242.3, 368889.2]
>>
>>
>> In the Heron-configuration (which I am not familiar with, but I assume it
>> copies the info to OpenLayers verbatim)
>>
>> you configure the extent to be [420000, 40000, 950000, 370000]
>>
>>
>> That's not going to work. Use the same extent in both cases.
>>
>> -Arne
>>
>>
>>
>> On 27/05/14 10:56 , Gergely Padányi-Gulyás wrote:
>>
>> Hello Arne,
>>
>> Thanks for the answer.
>> I tried with and without tileOrigin parameter, and there was absolutely
>> no difference in the result.
>>
>> Although I won't say I fully understand what you wrote about the
>> "inconsistent grid definition", I tried to make a gridset using resolutions
>> like this: rb = ra/2. Unfortunately the result was again the same, at some
>> zoom levels the offset is visible, at another levels it fits just fine.
>>
>> This is my (modified) map object (I use GeoExt 1.1 and Heron 1.0.1):
>>
>> huBox = [420000, 40000, 950000, 370000];
>> Heron.options.map.settings = {
>> projection: 'EPSG:23700',
>> displayProjection: 'EPSG:23700',
>> units: 'm',
>> maxExtent: new OpenLayers.Bounds(huBox[0], huBox[1], huBox[2],
>> huBox[3]),
>> scales: [4000000, 2000000, 1000000, 500000, 250000, 125000, 62500,
>> 31250, 15625],
>> xy_precision: 2
>> };
>>
>> I attach the modified EPSG:23700 gridset definition where all the zoom
>> levels, resolutions and tiles are visible (gridset.png).
>>
>> I'm thinking that maybe the datum parameters are not the same that
>> OpenLayers and GeoServer uses. OpenLayers gets it from Proj4js, here is the
>> def:
>> Proj4js.defs["EPSG:23700"] = "+proj=somerc +lat_0=47.14439372222222
>> +lon_0=19.04857177777778 +k_0=0.99993 +x_0=650000 +y_0=200000 +ellps=GRS67
>> +units=m +no_defs";
>>
>> And here is the definition from GeoServer:
>>
>> PROJCS["HD72 / EOV",
>> GEOGCS["HD72",
>> DATUM["Hungarian Datum 1972",
>> SPHEROID["GRS 1967", <a href="tel:6378160.0" value="+3663781600"
>> target="_blank">6378160.0, 298.247167427, AUTHORITY["EPSG","7036"]],
>>
>>
>> TOWGS84[52.17, -71.82, -14.9, 0.0, 0.0, 0.0, 0.0],
>> AUTHORITY["EPSG","6237"]],
>> PRIMEM["Greenwich", 0.0, AUTHORITY["EPSG","8901"]],
>> UNIT["degree", 0.017453292519943295],
>>
>>
>> AXIS["Geodetic longitude", EAST],
>> AXIS["Geodetic latitude", NORTH],
>> AUTHORITY["EPSG","4237"]],
>> PROJECTION["Oblique_Mercator", AUTHORITY["EPSG","9815"]],
>>
>>
>> PARAMETER["longitude_of_center", 19.048571777777784],
>> PARAMETER["latitude_of_center", 47.14439372222222],
>> PARAMETER["azimuth", 90.0],
>> PARAMETER["scale_factor", 0.99993],
>>
>>
>> PARAMETER["false_easting", 650000.0],
>> PARAMETER["false_northing", 200000.0],
>> PARAMETER["rectified_grid_angle", 90.0],
>> UNIT["m", 1.0],
>> AXIS["Easting", EAST],
>>
>>
>> AXIS["Northing", NORTH],
>> AUTHORITY["EPSG","23700"]]
>>
>>
>> But because NOT every zoom levels produce misplacement I don't really
>> think that the datum definition causes it.
>>
>> Gergely
>>
>>
>> <snip>
>>
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