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componentlist.convertshape - Function

1.2.1 Change the units of the shape parameters (Not implemented yet)


Description

The convertshape function changes the units of the specified shape parameters on the specified components. When changing the units it also converts the values so that overall the angle has not changed.

Depending on the component shape some arguments of this function are ignored. If the shape type is ’point’, then all but the which argument are ignored. This function is useless for points.

If the shape is a ’gaussian’ or ’disk’ then this will modify the units of the major and minor axes and the positionangle. Use the getshape function to see these parameters using the new units.

Arguments





Inputs

which

A vector of indices specifying the components to modify. A vector with indices between 0 and one less than the list length, inclusively

allowed:

int

Default:

majoraxis

The units to use on the larger axis. A string with angular units

allowed:

string

Default:

rad

deg

mas

arcsec

arcmin

minoraxis

The units to use on the smaller axis. A string with angular units

allowed:

string

Default:

rad

deg

mas

arcsec

arcmin

positionangle

The units to use for the rotation of these axes. A string with angular units

allowed:

string

Default:

rad

deg

Returns
bool

Example

 
 
      include ’componentlist.g’  
      cl := componentlist(’crux.cl’);  
      cl.convertshape(3, ’arcsec’, ’arcsec’);  
      print cl.getshape(3).minoraxis;  
 

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