[gdal-dev] Open Grib File

[Jaugeas, Pascal (External)]

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 <tel:%2B91-9494447584> 
	17.2416N 80.1426E
	




-- 
Best regards,
Chaitanya kumar CH.

+91-9494447584
17.2416N 80.1426E

-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.osgeo.org/pipermail/gdal-dev/attachments/20120106/cef269b8/attachment-0001.html