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User Documentation |
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SUMMARY: fields | routine DETAILS: routine | ||||||||||
./toolbox veltochan.pro
veltochan |
function veltochan(data, vels, [frame=string], [veldef=string]) |
Convert velocity (m/s) to channel number using the supplied data container. The velocity's frame and definition can also be supplied.
Parameters | |
data |
The spectrum data container to use to get the necessary header information. |
vels |
The velocities (m/s) to convert, may be an array of values. |
Keywords | |
frame |
The rest frame that the velocities are in. Known rest frames are listed in frame_velocity. Defaults to the frame given in data.velocity_definition. |
veldef |
The velocity definition in use from RADIO, OPTICAL, or TRUE. Defaults to the value found in data.velocity_definition. |