sarkit.crsd.Reader

class Reader(file)

Read a CRSD file

A Reader object can be used as a context manager in a with statement. Attributes, but not methods, can be safely accessed outside of the context manager’s context.

Parameters:

filefile object: CRSD file to read

Attributes:

metadataMetadata: CRSD metadata

Methods

`done`()	Indicates to the reader that the user is done with it
`read_channel`(channel_identifier, *[, ...])	Read signal and pvp data from a CRSD file channel
`read_ppps`(sequence_identifier, *[, out])	Read ppp data from a CRSD file
`read_pvps`(channel_identifier, *[, out])	Read pvp data from a CRSD file
`read_signal`(channel_identifier[, out])	Read signal data from a CRSD file
`read_signal_compressed`(*[, out])	Read signal data from a CRSD file with signal arrays stored in compressed format
`read_support_array`(sa_identifier[, masked, out])	Read SupportArray

See also

Writer

Examples

>>> import sarkit.crsd as skcrsd
>>> with file.open("rb") as f, skcrsd.Reader(f) as r:
...     sa_id = r.metadata.xmltree.findtext("{*}Data/{*}Support//{*}SAId")
...     sa = r.read_support_array(sa_id)
...     tx_id = r.metadata.xmltree.findtext("{*}Data/{*}Transmit//{*}TxId")
...     txseq = r.read_ppps(tx_id)
...     ch_id = r.metadata.xmltree.findtext("{*}Data/{*}Receive/{*}Channel/{*}ChId")
...     sig, pvp = r.read_channel(ch_id)