Getting Started | Documentation | Glish | Learn More | Programming | Contact Us |
Version 1.9 Build 1556 |
|
Package | synthesis | |
Module | map | |
Tool | freqselmanager |
This function creates a freqsel data item representing selection by velocity.
Create a freqsel data item item2 representing LSR velocity selection
covering the range 10-15 km/s.
Create a freqsel data item representing velocity selection
Synopsis
velocity(frame, nchan, mstart, mstep)
Arguments
frame
Reference frame
Allowed:
String
Default:
LSR
nchan
No. of velocity channels
Allowed:
Int
Default:
1
mstart
Start velocity (e.g. '20km/s')
Allowed:
Quantity
Default:
'0km/s'
mstep
Step velocity (e.g. '20km/s')
Allowed:
Quantity
Default:
'0km/s'
Returns
freqsel data item
or fail
Description
Example
myfq:= freqselmanager();
item2 := myfq.velocity(nchan=1, mstart='10km/s', mstep='5km/s');
Next: selectionmanager - Tool
Up: freqselmanager - Tool
Previous: freqselmanager.channel - Function
  Contents
  Index
Please send questions or comments about AIPS++ to aips2-request@nrao.edu.
Copyright © 1995-2000 Associated Universities Inc.,
Washington, D.C.
Return to AIPS++ Home Page
2006-10-15