convert ~/tex/nathan_igor/Bell_turbulence/png/Bx_T512eo4x_020.png pnm/Bx_T512eo4x_020.pnm
convert ~/tex/nathan_igor/Bell_turbulence/png/Bx_T512eo4x_065.png pnm/Bx_T512eo4x_065.pnm
convert PNG/img_0039.png pnm/img_0039.pnm
convert PNG/img_0097.png pnm/img_0097.pnm

cd pnm
pnmcat -lr Bx_T512eo4x_020.pnm Bx_T512eo4x_065.pnm >1.pnm
pnmcat -lr img_0039.pnm img_0097.pnm >2.pnm

pnmcat -tb 1.pnm 2.pnm >Bx_T1024eo5axi.pnm
convert Bx_T1024eo5axi.pnm Bx_T1024eo5axi.jpg
jpeg2ps Bx_T1024eo5axi.jpg > ../fig/Bx_T1024eo5axi.jpg.ps

