FitsUtil.h File Reference

#include <string>
#include <vector>

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Functions
bool	ParseHistoryBeamHeader (std::string &header, std::string &bmaj, std::string &bmin, std::string &bpa)
	Parses an AIPS-style beam header to extract beam parameters with regular expression.

Function Documentation

ParseHistoryBeamHeader()

bool ParseHistoryBeamHeader	(	std::string &	header,
		std::string &	bmaj,
		std::string &	bmin,
		std::string &	bpa
	)

Parses an AIPS-style beam header to extract beam parameters with regular expression.

Parameters

[in]	header	A string reference to the history beam header string to be parsed.
[out]	bmaj	A string reference to the extracted major axis value with its unit.
[out]	bmin	A string reference to the extracted minor axis value with its unit.
[out]	bpa	A string reference to the extracted position angle value with its unit.

Returns

true if the header was successfully parsed and values were extracted, otherwise false.

This function uses regular expressions to extract the major axis (BMAJ), minor axis (BMIN), and position angle (BPA) from an AIPS-style history beam header string. It handles two common formats: one using "Beam =" notation and another using "BMAJ=", "BMIN=", and "BPA=" notation.

Note

Units are normalized to "deg" when "degrees" is found in the header.

Warning

If the header format does not match expected patterns, the function logs a debug message and returns false.

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