5.1.7.0 sd.simplelinefinder.channelRange

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sd.simplelinefinder.channelRange - Function

5.1.7 Convert supplied velocity range into the channel range
Description

A helper method which works on a tuple with abcissa/flux vectors (i.e. as returned by uvSpectrum). It allows to convert supplied velocity range into the channel range.

The argument spc specifies abcissa/flux vectors as tuple. First and second elements of the tuple should be abcissa value and spectrum itself, respectively. The argument vel_range must be 2-element tuple that indicates start and stop velocity of range.

Note, if supplied range is completely outside the spectrum, an empty tuple will be returned.

Arguments


Inputs	tuple with the abcissa and spectrum
spc
	allowed:	tuple
	Default:
vel_range	a 2-element tuple with start and stop velocity of the range
	allowed:	tuple
	Default:

Returns
a 2-element tuple with channels

Example

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