[Gdal-dev] HDF4 Driver Improvments

[Julien Demaria]

Hi,


I want improve support for MODIS LV2 HDF4 files:
	- add a new HDF4SubdatasetType and recognize MODIS LV2 using 
"Title=MODISA Level-2 Data" metadata
	- support the 1D SubDatasets (I believe this is currently the only data 
we cannot read in MODIS LV2 with GDAL) ; maybe this changes can work 
with all HDF files ?
	- maybe implement the GetOffset and GetScale GDALRasterBand methods for 
MODIS LV2 SubDataset which have "slope" and "intercept" attributes

I've read the HDF4 driver source code and I think this isn't a hard 
work, but I want be sure there aren't any big problems I missed before 
start to implement this.


Thanks in advance,

Julien