1.1.3.0 coordsys.setlineartransform

NRAO Home > CASA > CASA Toolkit Reference Manual

coordsys.setlineartransform - Function

1.1.3 Set the linear transform

Description

This function set the linear transform component. For Stokes Coordinates this function will return T but do nothing.

You can recover the current linear transform with function lineartransform.

Arguments


Inputs
type	Coordinate type: ”direction”, ”stokes”, ”spectral”, ”linear”, ”tabular”. Leave empty for all.
	allowed:	string
	Default:
value	Linear transform
	allowed:	any
	Default:	variant

Returns
bool

Example

"""
#
print "\t----\t setlineartransform Ex 1 \t----"
csys = cs.newcoordsys(spectral=True, linear=3)
xf = csys.lineartransform(’lin’)
print xf
#[(1.0, 0.0, 0.0), (0.0, 1.0, 0.0), (0.0, 0.0, 1.0)]
xf[0]=list(xf[0])
xf[0][1]=0.01
#xf[0]=tuple(xf[0])
csys.setlineartransform(’lin’,xf)
print csys.lineartransform(’lin’)
#[(1.0, 0.01, 0.0), (0.0, 1.0, 0.0), (0.0, 0.0, 1.0)]
"""

__________________________________________________________________

[next] [prev] [prev-tail] [front] [up]

More information about CASA may be found at the CASA web page

This code is available under the terms of the GNU General Public Lincense