Sorry,It seems that noone of the Gdal maillist is in line,and the grass itself call some gdal commond,so I post the message here.
---------- Forwarded message ----------
From: maven apache <apachemaven0@gmail.com>
Date: 2009/9/15
Subject: how to handle the hdf4 using gdal
To: gdal-dev@lists.osgeo.org
Hi :
I want to handle some hdf4 data using gdal,and my goal is to get the subdatasetname of one hdf4,and I know I can use the gdalinfo to get the information,however what I get is just some plain text format as follows:
WESTBOUNDINGCOORDINATE=94.0216705976118
NORTHBOUNDINGCOORDINATE=58.2075179501186
EASTBOUNDINGCOORDINATE=131.825225491885
SOUTHBOUNDINGCOORDINATE=36.448663754723
PROCESSINGENVIRONMENT=Linux minion5141 2.6.8.1-25mdksmp #1 SMP Tue May 31 09:52:06 MDT 2005 i686 IntelR PentiumR III CPU family 1133MHz unknown
GNU/Linux
DESCRREVISION=5.0
Subdatasets:
SUBDATASET_1_NAME=HDF4_EOS:EOS_SWATH:“D:\data\HDF\MYD29.A2009061.0520.005.2009062044632.hdf”:MOD_Swath_Sea_Ice:Sea_Ice_by_Reflectance
SUBDATASET_1_DESC=[2030x1354] Sea_Ice_by_Reflectance MOD_Swath_Sea_Ice (8-bit unsigned integer)
SUBDATASET_2_NAME=HDF4_EOS:EOS_SWATH:“D:\data\HDF\MYD29.A2009061.0520.005.2009062044632.hdf”:MOD_Swath_Sea_Ice:Sea_Ice_by_Reflectance_Pixel_QA
SUBDATASET_2_DESC=[2030x1354] Sea_Ice_by_Reflectance_Pixel_QA MOD_Swath_Sea_Ice (8-bit unsigned integer)
SUBDATASET_3_NAME=HDF4_EOS:EOS_SWATH:“D:\data\HDF\MYD29.A2009061.0520.005.2009062044632.hdf”:MOD_Swath_Sea_Ice:Ice_Surface_Temperature
SUBDATASET_3_DESC=[2030x1354] Ice_Surface_Temperature MOD_Swath_Sea_Ice (16-bit unsigned integer)
SUBDATASET_4_NAME=HDF4_EOS:EOS_SWATH:“D:\data\HDF\MYD29.A2009061.0520.005.2009062044632.hdf”:MOD_Swath_Sea_Ice:Ice_Surface_Temperature_Pixel_QA
SUBDATASET_4_DESC=[2030x1354] Ice_Surface_Temperature_Pixel_QA MOD_Swath_Sea_Ice (8-bit unsigned integer)
So if I want to extract the subdataset name I should parser the text by myself,
I wonder if there are some liberary can do it using its method(maybe like this [getSubDataSetArrry()]).
BTW,I am using java,and I want to know how to install the gdal in the xp os? Since I am using the gdal included in FWTools2.2.8,so I have to install the FWTTools frist,I wonder if there is other easy way?