Pascal, The data is written into the buffer array. The function returns the CE_None or CE_None.
On Fri, Jan 6, 2012 at 7:11 PM, Jaugeas, Pascal (External) < [email protected]> wrote: > ** > Hello, > > another problem .... > > I try to read data of a band of a grib File. I think , in C# dev, I must > use ReadRaster function: > > My code : > > > for > (int j = 1; j <= rows; j++) > > { > > for (int k = 1; k <= cols; k++) > > { > > byte[] buffer ={1,1}; > > CPLErr err = band.ReadRaster(0, 0, cols, rows, buffer, cols, rows, 1, 1); > > double val = (double)band. ReadRaster(0, 0, cols, rows, buffer, cols, > rows, 1, 1); > > } > > } > > But, val stay at 0 and err is none. > > Do you have an idea ? buffer is important ? > > Tank you again for any help > > Best regards > > Pascal > > > ------------------------------ > *De :* [email protected] [mailto: > [email protected]] *De la part de* Chaitanya kumar CH > *Envoyé :* jeudi 5 janvier 2012 17:25 > > *À :* Jaugeas, Pascal (External) > *Cc :* [email protected] > *Objet :* Re: [gdal-dev] Open Grib File > > Pascal, > > Use the GDALMajorObject::GetMetaData() method[1]. > > You might want to go through the GDAL API docs[2] a bit throughly. > > [1]: http://www.gdal.org/classGDALMajorObject.html > [2]: http://www.gdal.org/hierarchy.html > > On Thu, Jan 5, 2012 at 7:40 PM, Jaugeas, Pascal (External) < > [email protected]> wrote: > >> ** >> I have another problem. >> >> After open grib file, I have a DataSet. >> This dataset give the quantities of row, col and band. >> For each band, I want to know the heading. In a band of a grib file, >> there are 3 rows for heading, not counting by the dataset. >> Do you know how I can do that ? >> >> Thanks and regards, >> >> >> ------------------------------ >> *De :* Chaitanya kumar CH [mailto:[email protected]] >> *Envoyé :* jeudi 5 janvier 2012 13:00 >> *À :* Jaugeas, Pascal (External) >> *Cc :* [email protected] >> *Objet :* Re: [gdal-dev] Open Grib File >> >> Pascal, >> >> First check if your file works with the gdalinfo utility. Set the >> environment variable CPL_DEBUG to ON to get more detailed reports on events. >> >> Check if you get the same error with another grib file and another format >> file. >> >> >> On Thu, Jan 5, 2012 at 2:50 PM, Jaugeas, Pascal (External) < >> [email protected]> wrote: >> >>> ** >>> Hello, >>> >>> I develop with Gdal for .Net. >>> And I try to read a grib File (ed 1) like this : >>> >>> Dataset >>> ds = Gdal.Open(dataSourcePath, Access.GA_Update); >>> with dataSourcePath is the path of grib file (.grb). >>> >>> But I have an error in debug : "... not recognised as a supported file >>> format." >>> >>> Is this method correct to have a dataset of a grib file ? >>> >>> Thank you for your help, >>> >>> Best Regards, >>> >>> Pascal Jaugeas >>> >>> >>> >>> _______________________________________________ >>> gdal-dev mailing list >>> [email protected] >>> http://lists.osgeo.org/mailman/listinfo/gdal-dev >>> >> >> >> >> -- >> Best regards, >> Chaitanya kumar CH. >> >> +91-9494447584 >> 17.2416N 80.1426E >> > > > > -- > Best regards, > Chaitanya kumar CH. > > +91-9494447584 > 17.2416N 80.1426E > > _______________________________________________ > gdal-dev mailing list > [email protected] > http://lists.osgeo.org/mailman/listinfo/gdal-dev > -- Best regards, Chaitanya kumar CH. +91-9494447584 17.2416N 80.1426E
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