[mapguide-users] can anyone solved this buffer problem

[Kenneth Skovhede, GEOGRAF A/S]

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.
>>>>>>>   
>>>>>>>   
>>>>>>>       
>>>>>>>           
>>>>>>>               
>>>>>> _______________________________________________
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>>>>>> mapguide-users at lists.osgeo.org
>>>>>> http://lists.osgeo.org/mailman/listinfo/mapguide-users
>>>>>>
>>>>>>
>>>>>>     
>>>>>>         
>>>>>>             
>>>>>   
>>>>>       
>>>>>           
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>>>>
>>>>     
>>>>         
>>>   
>>>       
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