tut/create_new_commands/new_commands.py

Go to the documentation of this file.

"""
Simple example on how to Create an Out-of-Core Linear
Operator.
"""

from slimpy_base.Core.User.linop.NewLinOp import NewLinop
from slimpy_base import voidSpace
from os import environ
from os.path import join
    
#Create custom linear operator class.
class fft_user(NewLinop):
    """
    The variables that must be specified are:
            command - if command is rsf, will automatically add the sf infront.
                    So "command = fft1" will call the command sffft1
            params
            
    Optional variables for the transpose are:
            inSpace
            kparams
            transp_command
            outSpace
            transp_params
            transp_kparams    
    If the optional variables are not specified then they are assumed to
    be the same as the forward.
    """
    

    def __init__(self, space, opt='y', inv='n'):
        
        self.inSpace = space
        self.outSpace = voidSpace( 'slim2rsf' )
        
        self.kparams = dict(opt=opt, inv=inv)
        
        RSFROOT = environ.get('RSFROOT')
        self.command = join(RSFROOT, 'bin', "sffft1")
        self.params  = ()
        
        NewLinop.__init__( self )


def add_3( vec ):
    RSFROOT = environ.get('RSFROOT')
    cmd = join(RSFROOT, 'bin', "sfadd")
    
    return vec.generateNew( cmd , add=3 )

---