# img_0020.png  img_0030.png  img_0040.png  img_0050.png  img_0100.png  img_0150.png  img_0334.png

png2pnm img_0020
#png2pnm img_0030
#png2pnm img_0040
png2pnm img_0050
#png2pnm img_0060
#png2pnm img_0080
png2pnm img_0100
png2pnm img_0150
png2pnm img_0200
png2pnm img_0334

cd pnm
pnmcat -lr img_0020.pnm img_0050.pnm img_0100.pnm > 1.pnm
pnmcat -lr img_0150.pnm img_0200.pnm img_0334.pnm > 2.pnm
pnmcat -tb 1.pnm 2.pnm > B.pnm
convert B.pnm B.jpg
jpeg2ps B.jpg > ~/tex/mhd/50yrMFT/fig/B.ps

