[gdal-dev] Open Grib File

Jaugeas, Pascal (External) pascal.jaugeas.External at cassidian.com
Mon Jan 9 08:58:43 EST 2012


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
			 
			 

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		-- 
		Best regards,
		Chaitanya kumar CH.
		
		+91-9494447584 <tel:%2B91-9494447584> 
		17.2416N 80.1426E
		




	-- 
	Best regards,
	Chaitanya kumar CH.
	
	+91-9494447584 <tel:%2B91-9494447584> 
	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

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