hdfgd issue when reading MODIS mcd12c1 coordinates (or the way to get the coordinates of hdf-eos data)

3 次查看（过去 30 天）

显示更早的评论

Rong Yu 2015-6-11

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/223481-hdfgd-issue-when-reading-modis-mcd12c1-coordinates-or-the-way-to-get-the-coordinates-of-hdf-eos-dat

回答： Rong Yu 2015-6-11

在 MATLAB Online 中打开

I used the code below to try to get the grid information of MODIS MCD12C1 data. The data format is hdf-eos. But grid_id always equals to -1. Does anyone know why or share another way with me to read the coordinates of hdf-eos data. Thank you!!!

FILE_NAME='MCD12C1.A2001001.051.2014274170618.hdf'
GRID_NAME='GeoGrid'
file_id = hdfgd('open', FILE_NAME, 'rdonly')
grid_id = hdfgd('attach', file_id, GRID_NAME)

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

回答（1 个）

Rong Yu 2015-6-11

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/223481-hdfgd-issue-when-reading-modis-mcd12c1-coordinates-or-the-way-to-get-the-coordinates-of-hdf-eos-dat#answer_182411

在 MATLAB Online 中打开

Figured it out.

GRID_NAME should be the exact one from the metadata, which can be achieved by hdfinfo.

For example,

fileinfo = hdfinfo('MCD12C1.A2009001.051.2013164180520.hdf');

In fileinfo>attributes>'StructMetadata.0', there is GridName.

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

类别

MATLAB Data Import and Analysis Data Import and Export Standard File Formats HDF5

在 Help Center 和 File Exchange 中查找有关 HDF5 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Translated by