from rsf.proj import *
from rsf.prog import RSFROOT

#############################################
#  DOWNLOAD DATA
#############################################


Fetch('lena.img','imgs')
Flow('lena','lena.img',
     '''
     echo n1=512 n2=513 in=$SOURCE data_format=native_uchar |
     dd type=float |
     window f2=1
     ''',stdin=0)

Result('lena','grey transp=n allpos=y title="Lena" screenratio=1 wantaxis=n')

#############################################
# INITIALIZATION FOR MATLAB
#############################################
matlab         = WhereIs('matlab')
matROOT = '../Matfun'
matfun = 'clip'
matlabpath = os.environ.get('MATLABPATH',os.path.join(RSFROOT,'lib'))

if not matlab:
    sys.stderr.write('\nCannot find Matlab.\n')
    sys.exit(1)

Flow('spike',None,'spike n1=10 d1=1 n2=1 nsp=1 k1=5')

Flow('clip',[os.path.join(matROOT,matfun+'.m'),'spike'],
     '''MATLABPATH=%(matlabpath)s %(matlab)s -nosplash -nojvm -r
     "addpath %(matROOT)s;
     %(matfun)s('${SOURCES[1]}','${TARGET}',0.5);
     quit"
     '''%vars(),stdin=0,stdout=-1)


End()