read_data running input: 25 25 index=0 last=2 25| len=2 nxx=25 index=2 last=5 25 nyy=25 about to allocate 3130 doubles input: -1.000000 -1.000000 -0.858216 -2.280480 -2.280480 index=0 last=9 amount=-1.0 index=10 last=19 amount=-1.0 index=20 last=29 amount=-0.858216 index=30 last=39 amount=-2.28048 index=40 last=49 amount=-2.28048 first x=-1.0, y=-1.0, z=-0.858216 read_data finished, n_input=625 xmin=-1.0, xmax=1.0, last=1.0 ymin=-1.0, ymax=1.0, last=1.0 zmin=-1.0, zmax=1.0, last=-0.858216 umin=-6.283185, umax=6.283185, last=2.28048 vmin=-6.283185, vmax=6.283185, last=2.28048