[mapguide-users] can anyone solved this buffer problem
Kenneth Skovhede, GEOGRAF A/S
ks at geograf.dk
Thu Apr 23 06:59:21 EDT 2009
Why do you mention packages?
excludedLayers is incremented because the data coordinate system is not
the same as the map coodinate system.
Please comment on what happend when you attempted my previous suggestions.
Regards, Kenneth Skovhede, GEOGRAF A/S
padmini godavarthi skrev:
> Hi Kenneth,
> Thanks for ur suggestions.
> I have created a package using OGR provider but in the buffering i found
> some problem that
>
> // exclude layer if:
> // the map is non-arbitrary and the layer is arbitrary or
> vice-versa
> // or
> // layer and map are both arbitrary but have different units
> //
> if ((arbitraryDsSrs != arbitraryMapSrs) || (arbitraryDsSrs &&
> (dsSrsUnits != mapSrsUnits)))
> {
> excludedLayers++;
> continue;
> }
> it gives difference to my data and sheboygan sample data
> so that in my code excludedLayers is incremented to 1 so i didnt get the
> buffer features
> can u plz tell me the solution?????????????????
>
>
> Regards,
> Padmini.
>
>
>
>
> Kenneth Skovhede, GEOGRAF A/S wrote:
>
>> I'm not sure that provider is case insensitive.
>> Try adding the file again, but with the name "PROPERTIES.shp".
>>
>> Also, try creating a folder, and place the files in the folder.
>> Then try to use the "External files" and point to the folder.
>> Also try pointing directly to the file.
>>
>> When the "Test connection" is successfull, try clicking the
>> rightmost button in the "coordinate system override" field, and
>> it will show you what the provider returns as the coordinate system.
>>
>> Alternatively, try using the OGR provider instead of the SHP provider.
>>
>> Regards, Kenneth Skovhede, GEOGRAF A/S
>>
>>
>>
>> padmini godavarthi skrev:
>>
>>> Hi Keneneth,
>>> First of all thanks for ur patience
>>> i have uploaded all the files but i didnt get the coordinate system
>>>
>>> http://n2.nabble.com/file/n2676400/file.jpeg
>>>
>>> again i did anything wrong??????????
>>>
>>> Regards,
>>> Padmini.
>>>
>>>
>>> Kenneth Skovhede, GEOGRAF A/S wrote:
>>>
>>>
>>>> IIRC Shape files consist of more than just the SHP file.
>>>> You must upload all the "Properties.*" files to the datasource,
>>>> even if the upload file dialog is misleading (you must select "All
>>>> files" to see them).
>>>>
>>>> A ticket for this problem is here.
>>>> http://trac.osgeo.org/mapguide/ticket/783
>>>>
>>>> Regards, Kenneth Skovhede, GEOGRAF A/S
>>>>
>>>>
>>>>
>>>> padmini godavarthi skrev:
>>>>
>>>>
>>>>> Hi,
>>>>> but i did it as per ur instruction but it didn't come
>>>>>
>>>>> http://n2.nabble.com/file/n2676097/over.jpeg
>>>>>
>>>>> my code as same as previous
>>>>> MgResourceIdentifier featSourceId = new
>>>>> MgResourceIdentifier(selLayer.GetFeatureSourceId());
>>>>> MgSpatialContextReader ctxs =
>>>>> featureSrvc.GetSpatialContexts(featSourceId, false);
>>>>> String srsDefDs = "";
>>>>> if (ctxs != null && ctxs.ReadNext())
>>>>> srsDefDs = ctxs.GetCoordinateSystemWkt();
>>>>>
>>>>> in srsDefDs i got null
>>>>> does i did any thing wrong
>>>>>
>>>>> Regards,
>>>>> Padmini.
>>>>>
>>>>>
>>>>>
>>>>> Kenneth Skovhede, GEOGRAF A/S wrote:
>>>>>
>>>>>
>>>>>
>>>>>> Yes, your FeatureSource reports an empty coordinate system, so you
>>>>>> have
>>>>>> to specify it manually.
>>>>>>
>>>>>> There is a short explanation on how to use overrides here:
>>>>>> http://trac.osgeo.org/fdo/wiki/FdoGdalNotes#OverridingCoordinateSystems
>>>>>>
>>>>>> Regards, Kenneth Skovhede, GEOGRAF A/S
>>>>>>
>>>>>>
>>>>>>
>>>>>> padmini godavarthi skrev:
>>>>>>
>>>>>>
>>>>>>
>>>>>>> Hi,
>>>>>>> thanks but is it necessary overriding a coordinate system????????
>>>>>>> How it willbe done???????
>>>>>>> can u provide me some guidance???????
>>>>>>> i have seen ur link but no data available in that for overrides
>>>>>>> coordinate
>>>>>>> system
>>>>>>>
>>>>>>> http://trac.osgeo.org/mapguide/wiki/maestro/UserGuides/RasterFeatureSource
>>>>>>>
>>>>>>> can u plz tell me????????????
>>>>>>>
>>>>>>> Regards,
>>>>>>> Padmini.
>>>>>>>
>>>>>>>
>>>>>>> Kenneth Skovhede, GEOGRAF A/S wrote:
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>> No, I meant "Coordinate System Override", which is located on the
>>>>>>>> FeatureSource editor at the bottom.
>>>>>>>> See screenshots here:
>>>>>>>> http://trac.osgeo.org/mapguide/wiki/maestro/UserGuides/RasterFeatureSource
>>>>>>>>
>>>>>>>> Regards, Kenneth Skovhede, GEOGRAF A/S
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> padmini godavarthi skrev:
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>> Hi,
>>>>>>>>> Thanks for ur reply
>>>>>>>>> u man to say in mapdefinition(in maestro)????????????????
>>>>>>>>> iam using maestro and i have selected the coordinate system as
>>>>>>>>>
>>>>>>>>> http://n2.nabble.com/file/n2675676/coor.jpeg
>>>>>>>>>
>>>>>>>>> does i did any thing wrong???????????????
>>>>>>>>>
>>>>>>>>> Regards,
>>>>>>>>> Padmini.
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> Kenneth Skovhede, GEOGRAF A/S wrote:
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>> Have you tried to add a coordinate system override,
>>>>>>>>>> using Maestro or Studio?
>>>>>>>>>>
>>>>>>>>>> Regards, Kenneth Skovhede, GEOGRAF A/S
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> padmini godavarthi skrev:
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>> Hi,
>>>>>>>>>>> iam using mapguide opensource 2.0 (with .net 2.0 +IIS 5.1)
>>>>>>>>>>> i want to make a buffer to my data
>>>>>>>>>>> the buffer function works fine for this sheboygan data but not
>>>>>>>>>>> for
>>>>>>>>>>> my
>>>>>>>>>>> data
>>>>>>>>>>> i have debugged the application and i got the error at
>>>>>>>>>>>
>>>>>>>>>>> MgResourceIdentifier featSourceId = new
>>>>>>>>>>> MgResourceIdentifier(selLayer.GetFeatureSourceId());
>>>>>>>>>>> MgSpatialContextReader ctxs =
>>>>>>>>>>> featureSrvc.GetSpatialContexts(featSourceId, false);
>>>>>>>>>>> String srsDefDs = "";
>>>>>>>>>>> if (ctxs != null && ctxs.ReadNext())
>>>>>>>>>>> srsDefDs = ctxs.GetCoordinateSystemWkt();
>>>>>>>>>>>
>>>>>>>>>>> In Sheboygan data
>>>>>>>>>>> srsDefDs comes as GEOGCS["WGS84 Lat/Long's, Degrees, -180 ==>
>>>>>>>>>>> +180",DATUM["D_WGS_1984",SPHEROID["World_Geodetic_System_of_1984",6378137,298.257222932867]],PRIMEM["Greenwich",0],UNIT["Degree",0.017453292519943295]]
>>>>>>>>>>>
>>>>>>>>>>> but for my data
>>>>>>>>>>> srsDefDs comes as null
>>>>>>>>>>>
>>>>>>>>>>> Actually my data is in coordinate system
>>>>>>>>>>>
>>>>>>>>>>> GEOGCS["WGS 84",DATUM["WGS_1984",SPHEROID["WGS
>>>>>>>>>>> 84",6378137,298.257223563,AUTHORITY["EPSG","7030"]],TOWGS84[0,0,0,0,0,0,0],AUTHORITY["EPSG","6326"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.01745329251994328,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4326"]]
>>>>>>>>>>>
>>>>>>>>>>> can u plz tell me the solution????????????????????????
>>>>>>>>>>>
>>>>>>>>>>> plzzz
>>>>>>>>>>>
>>>>>>>>>>> Regards,
>>>>>>>>>>> Padmini.
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>> _______________________________________________
>>>>>>>>>> mapguide-users mailing list
>>>>>>>>>> mapguide-users at lists.osgeo.org
>>>>>>>>>> http://lists.osgeo.org/mailman/listinfo/mapguide-users
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>> _______________________________________________
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>>>>>>>> http://lists.osgeo.org/mailman/listinfo/mapguide-users
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
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>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>
>>>>>
>>>>>
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