H5T_STRING 的 hdf5dump
我试图弄清楚如何从 HDF5 文件（测深属性网格/BAG）转储文本块。当我执行 h5dump -d /BAG_root/metadata H11703_Office_5m.bag 以及我尝试过的任何其他操作时，我总是会获取引用 XML 的每个字符的数据。是否有一个“简单”选项可以将原始数据内容转储到文件或终端？
DATASET "/BAG_root/metadata" {
DATATYPE H5T_STRING {
STRSIZE 1;
STRPAD H5T_STR_NULLTERM;
CSET H5T_CSET_ASCII;
CTYPE H5T_C_S1;
}
DATASPACE SIMPLE { ( 5097 ) / ( H5S_UNLIMITED ) }
DATA {
(0): "<", "?", "x", "m", "l", " ", "v", "e", "r", "s", "i", "o", "n", "=",
(14): """, "1", ".", "0", """, "?", ">", "
", "<", "s", "m",
(25): "X", "M", "L", ":", "M", "D", "_", "M", "e", "t", "a", "d", "a",
I'm trying to figure out how to dump a text block from an HDF5 file (a Bathymetric Attributed Grid / BAG). When I do h5dump -d /BAG_root/metadata H11703_Office_5m.bag, and anything else I've tried, I always get the data with each character of the XML quoted. Is there an "easy" option to have it dump the raw data contents to a file or the terminal?
DATASET "/BAG_root/metadata" {
DATATYPE H5T_STRING {
STRSIZE 1;
STRPAD H5T_STR_NULLTERM;
CSET H5T_CSET_ASCII;
CTYPE H5T_C_S1;
}
DATASPACE SIMPLE { ( 5097 ) / ( H5S_UNLIMITED ) }
DATA {
(0): "<", "?", "x", "m", "l", " ", "v", "e", "r", "s", "i", "o", "n", "=",
(14): """, "1", ".", "0", """, "?", ">", "
", "<", "s", "m",
(25): "X", "M", "L", ":", "M", "D", "_", "M", "e", "t", "a", "d", "a",
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当我在 OpenNavSurf 邮件列表上提出这个主题后，Marcus Cole 通过电子邮件向我发送了这个解决方案：
这会写出一个干净的 XML 文件。
Marcus Cole emailed me this solution after I brought up the topic on the OpenNavSurf mailing list:
This writes out a clean XML file.
回复：Python 和BAG，GDAL 1.7.0+支持BAG格式；例如：
Re: Python & BAG, GDAL 1.7.0+ supports the BAG format; e.g.:
数据存储为 5097 个单字符串数组 (
STRSIZE 1)。要转储文本，它应该存储为真实字符串（例如，在标量数据空间中）。因此，我认为您不能单独使用
h5dump来完成此操作，您可能必须使用sed或您最喜欢的正则表达式工具来处理转储。The data is stored as an array of 5097 single characters strings (
STRSIZE 1). To dump the text, it should have been stored as a real string (e.g. in a scalar dataspace).So I think you cannot do it with
h5dumpalone, you probably have to process the dump withsedor your favorite regexp tool.