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Version 1.9 Build 1488

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coordsys.names - Function

	Package	general
	Module	images
	Tool	coordsys

Recover the names for each axis

Synopsis
names(type)

Arguments

type	in	Coordinate type
		Allowed:	String from "direction", "stokes", "spectral", "linear", "tabular" or unset
		Default:	All

Returns
Vector of strings or fail

Description

Each axis associated with the Coordinate System has a name (they don't mean anything fundamental). This function returns those names in world axis order.

You can recover the names either for all coordinates (leave type unset) or for a specific coordinate type (mimumum match of the allowed types will do). If you ask for a non-existent coordinate an exception is generated.

You can set the names with function setnames.

Example

- cs := coordsys(direction=T, spectral=T)
- n := cs.names(T)
- n[1]
Right Ascension 
- n[2]
Declination 
- n[3]
Frequency 
-
- cs.names('spec')
Frequency