[gdal-dev] Open Grib File

Chaitanya kumar CH chaitanya.ch at gmail.com
Mon Jan 9 09:35:13 EST 2012


Pascal,

Please note that metadata could be associated with either dataset or the
band. Make sure to check them both.

On Mon, Jan 9, 2012 at 7:28 PM, Jaugeas, Pascal (External) <
pascal.jaugeas.External at cassidian.com> wrote:

> **
> OK thank you very much
>
> and the last question : to have metadata, I use the function
> band.GetMetadata( *pszDomain).*
> **
> But if i  write "" in parameter of the function,   the default metadatas
> is not complete. Do you have document that list  *pszDomain ?*
> **
> Thank you for your help
>
> Pascal
>
>  ------------------------------
> *De :* Chaitanya kumar CH [mailto:chaitanya.ch at gmail.com]
> *Envoyé :* vendredi 6 janvier 2012 14:53
>
> *À :* Jaugeas, Pascal (External)
> *Cc :* gdal-dev at lists.osgeo.org
> *Objet :* Re: [gdal-dev] Open Grib File
>
> 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) <
> pascal.jaugeas.External at cassidian.com> 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 :* gdal-dev-bounces at lists.osgeo.org [mailto:
>> gdal-dev-bounces at lists.osgeo.org] *De la part de* Chaitanya kumar CH
>> *Envoyé :* jeudi 5 janvier 2012 17:25
>>
>> *À :* Jaugeas, Pascal (External)
>> *Cc :* gdal-dev at lists.osgeo.org
>> *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) <
>> pascal.jaugeas.External at cassidian.com> 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:chaitanya.ch at gmail.com]
>>> *Envoyé :* jeudi 5 janvier 2012 13:00
>>> *À :* Jaugeas, Pascal (External)
>>> *Cc :* gdal-dev at lists.osgeo.org
>>> *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) <
>>> pascal.jaugeas.External at cassidian.com> 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
>>>> gdal-dev at lists.osgeo.org
>>>> 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
>> gdal-dev at lists.osgeo.org
>> 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
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