# # Demo for direct plotting of voxel data # splot $voxelgrid with {dots|points} # if (!exists("VoxelDistance")) exit set border 0 set xzeroaxis; set yzeroaxis; set zzeroaxis; set label 1 "X" at 4.1, 0, 0 set label 2 "Y" at 0, 4.1, 0 set label 3 "Z" at 0, 0, 4.1 set tics axis nomirror set xyplane at 0 set key opaque box set cblabel "$v201 voxel value" offset -6 set view 203, 227, 1.75 set palette cubehelix negative set cbrange [0:100] set xrange [-4:4]; set yrange [-4:4]; set zrange [-4:4] # # Radius 1 spheres around (-1,2,2) and (0,3,2) with values decreasing # linearly with distance from the center # set vgrid $v122 size 100 set vxrange [-4:4]; set vyrange [-4:4]; set vzrange [-4:4] vfill '-' using 1:2:3:(1.):(100. * (1. - VoxelDistance)) -1 2 2 e set vgrid $v032 size 100 set vxrange [-4:4]; set vyrange [-4:4]; set vzrange [-4:4] vfill '-' using 1:2:3:(1.):(100. * (1. - VoxelDistance)) 0 3 2 e # # Radius 2 sphere around (2,0,1) with values decreasing exponentially # with distance from the center # NB: vgrid range is different from the plot range # set vgrid $v201 size 25 set vxrange [0:5]; set vyrange [-2.5:2.5]; set vzrange [-1:4] vfill '-' using 1:2:3:(2.):(40. * exp(1. - VoxelDistance)) 2 0 1 e show vgrid set title "overlapping dot plots with constant color\n" \ . "point plot colored by exponentially decreasing voxel value" splot $v122 with dots above 0.01 lc "blue", \ $v032 with dots lc "red", \ $v201 with points pt 4 lc palette lw 0.33 pause -1 "<cr> to continue" # # Same thing with jitter # set jitter set title "Same voxel plot with jitter" replot pause -1 "<cr> to continue" reset
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