Hi, Thanks for ur reply 1)can u plz tell me how to retrieve features with in the buffer area(actually im a little bit confused)
Regards, Padmini. Kenneth Skovhede, GEOGRAF A/S wrote: > > It looks correct, it seems to follow the edges as expected. > > When creating the buffer, a simple method is to take each line, and > buffer it, > so it gets rounded corners. > Then alle the resulting buffer items are combined into a single object > that is the buffer. > > If I look at your image, that seems to happen correctly. > The long side at the bottom right seems to be reflected in the buffer > edge. > > If you would like it to be a perfect circle, you should only buffer a > point, > not a polygon. > > Regards, Kenneth Skovhede, GEOGRAF A/S > > > > padmini godavarthi skrev: >> Hi Kenneth, >> >> i have created a buffer with 0.2 miles but i think the buffer is not >> creating accurately >> >> http://n2.nabble.com/file/n2745746/buffer.jpeg >> >> 1) can u provide any solution????????????? >> >> 2)And can u plz tell me the code for retrieving parcel_id with in the >> buffer >> area(im a little bit confused) >> >> plzzzzzzzz >> >> Regards, >> Padmini. >> >> >> Kenneth Skovhede, GEOGRAF A/S wrote: >> >>> It looks correct to me. Try using a smaller buffer to better determine >>> accuracy. >>> >>> For the second question, you have already asked that in another thread. >>> The AJAX viewer shows selection data, so try looking at the >>> selection.aspx files, >>> and see how it works. >>> >>> Regards, Kenneth Skovhede, GEOGRAF A/S >>> >>> >>> >>> padmini godavarthi skrev: >>> >>>> Hi Kenneth, >>>> Thanku very much for ur help............. >>>> i did the coordinate system override as per ur instructions. >>>> It works fine >>>> but i felt that the buffer feature is not coming accurately?? >>>> what was the problem???????????????????????????? >>>> >>>> i mean by observing closely its not an accurate circle(buffer layer). >>>> >>>> http://n2.nabble.com/file/n2683455/pic.jpeg >>>> >>>> 2)secondly i want to retrieve the parcel_ids that are included or >>>> intersected in the buffer layer.How is it possible ? can u send me the >>>> sample code????????? >>>> >>>> Thanks in advance. >>>> >>>> Regards, >>>> Padmini. >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>>> Kenneth Skovhede, GEOGRAF A/S wrote: >>>> >>>> >>>>> Thats because the Sheboygan data uses a true georeferenced coordinate >>>>> system, >>>>> and your data is using a non-georeferenced system, like XY-M. >>>>> Arbitrary should be understood as "non-georeferenced". >>>>> >>>>> If your data is not in the same projection as the map, you cannot use >>>>> the buffer feature. >>>>> >>>>> This then returns to my initial statement: "Coordinate System >>>>> Override", >>>>> which can >>>>> set the data coordinate system to match the maps. >>>>> >>>>> Can you please report what happened with with the suggestions I made, >>>>> regarding the coordinate system overrides? >>>>> >>>>> Regards, Kenneth Skovhede, GEOGRAF A/S >>>>> >>>>> >>>>> >>>>> padmini godavarthi skrev: >>>>> >>>>> >>>>>> Hi, >>>>>> >>>>>> In my data >>>>>> >>>>>> bool arbitraryMapSrs = (srsMap.GetType() == >>>>>> MgCoordinateSystemType.Arbitrary); >>>>>> >>>>>> arbitraryMapSrs comes as true but in sheboygan data it comes as false >>>>>> >>>>>> if (arbitraryMapSrs) >>>>>> mapSrsUnits = srsMap.GetUnits(); >>>>>> In mydata mapSrsUnits comes as "meter" but in sheboygan data it comes >>>>>> as >>>>>> null >>>>>> >>>>>> so that >>>>>> if ((arbitraryDsSrs != arbitraryMapSrs) || (arbitraryDsSrs && >>>>>> (dsSrsUnits >>>>>> != mapSrsUnits))) >>>>>> { >>>>>> excludedLayers++; >>>>>> continue; >>>>>> } >>>>>> In my data excludedLayers comes as 1 and where as in sheboyan data >>>>>> this >>>>>> condition fails.................... >>>>>> Can u plz provide me the solution????????????? >>>>>> >>>>>> Regards, >>>>>> Padmini. >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> Kenneth Skovhede, GEOGRAF A/S wrote: >>>>>> >>>>>> >>>>>> >>>>>>> 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@lists.osgeo.org >>>>>>>>>>>>>>>>> http://lists.osgeo.org/mailman/listinfo/mapguide-users >>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>> >>>>>>>>>>>>>>> _______________________________________________ >>>>>>>>>>>>>>> mapguide-users mailing list >>>>>>>>>>>>>>> mapguide-users@lists.osgeo.org >>>>>>>>>>>>>>> http://lists.osgeo.org/mailman/listinfo/mapguide-users >>>>>>>>>>>>>>> >>>>>>>>>>>>>>> >>>>>>>>>>>>>>> >>>>>>>>>>>>>>> >>>>>>>>>>>>>>> >>>>>>>>>>>>>>> >>>>>>>>>>>>>>> >>>>>>>>>>>>>>> >>>>>>>>>>>>>>> >>>>>>>>>>>>>> >>>>>>>>>>>>>> >>>>>>>>>>>>>> >>>>>>>>>>>>>> >>>>>>>>>>>>>> >>>>>>>>>>>>>> >>>>>>>>>>>>>> >>>>>>>>>>>>> _______________________________________________ >>>>>>>>>>>>> mapguide-users mailing list >>>>>>>>>>>>> mapguide-users@lists.osgeo.org >>>>>>>>>>>>> http://lists.osgeo.org/mailman/listinfo/mapguide-users >>>>>>>>>>>>> >>>>>>>>>>>>> >>>>>>>>>>>>> >>>>>>>>>>>>> >>>>>>>>>>>>> >>>>>>>>>>>>> >>>>>>>>>>>>> >>>>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>> _______________________________________________ >>>>>>>>>>> mapguide-users mailing list >>>>>>>>>>> mapguide-users@lists.osgeo.org >>>>>>>>>>> http://lists.osgeo.org/mailman/listinfo/mapguide-users >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>> _______________________________________________ >>>>>>>>> mapguide-users mailing list >>>>>>>>> mapguide-users@lists.osgeo.org >>>>>>>>> http://lists.osgeo.org/mailman/listinfo/mapguide-users >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>> _______________________________________________ >>>>>>> mapguide-users mailing list >>>>>>> mapguide-users@lists.osgeo.org >>>>>>> http://lists.osgeo.org/mailman/listinfo/mapguide-users >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>> >>>>>> >>>>>> >>>>> _______________________________________________ >>>>> mapguide-users mailing list >>>>> mapguide-users@lists.osgeo.org >>>>> http://lists.osgeo.org/mailman/listinfo/mapguide-users >>>>> >>>>> >>>>> >>>>> >>>> >>>> >>> _______________________________________________ >>> mapguide-users mailing list >>> mapguide-users@lists.osgeo.org >>> http://lists.osgeo.org/mailman/listinfo/mapguide-users >>> >>> >>> >> >> > > _______________________________________________ > mapguide-users mailing list > mapguide-users@lists.osgeo.org > http://lists.osgeo.org/mailman/listinfo/mapguide-users > > -- View this message in context: http://n2.nabble.com/can-anyone-solved-this-buffer-problem-tp2675600p2751645.html Sent from the MapGuide Users mailing list archive at Nabble.com. _______________________________________________ mapguide-users mailing list mapguide-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapguide-users