如何在具有光效的 gnuplot 中的 3D 调色板中进行选择？
How to make the choice in 3D color palette in gnuplot with light effect?
我正在制作 3D 表面图，我正在尝试调整 3D 表面图，以便它提供更多的深度和光线效果[参考图 1
不过，我的味觉选择确实不好
以下是我的代码，任何建议都会有所帮助。
**#!/usr/local/bin/gnuplot
reset
set terminal postscript eps enhanced color size 12cm,12cm solid lw 3 "Times-Roman" 20
set output "Cubic.eps"
#set palette defined ( -0.09 "purple", -0.06 "blue", -0.03 "red", 0 "brown", 0.05 "yellow" )
#unset key
set pm3d
set parametric
set isosamples 100,100
set hidden3d
set sample 100,100
set surface
unset ylabel
unset zlabel
set title "(a)"
unset zrange
unset yrange
unset xrange
unset xtics
unset ytics
unset ztics
set border 0
set view 89,179,1,1
set zrange[-0.09:0.1]
#set cbrange[-0.09:0.1]
#set xlabel "k_x (2pi/a)" rotate parallel offset 2,7,8 font "Times-Bold,25"
#set zlabel "k_z(2pi/a)" rotate parallel offset 5,1,1 font "Times-Bold,25"
#set ylabel "k_y (2pi/a)" rotate parallel offset -5,7,0 font "Times-Bold,25"
splot 'data.dat' u 4:5:8 notitle, 'data.dat' u 4:5:9 w pm3d notitle, 'data.dat' u 4:5:7 w pm3d notitle,'data.dat' u 4:5:10 w pm3d notitle,'data.dat' u 4:5:10 w pm3d notitle,'data.dat' u 4:5:9 w pm3d notitle**
文档摘录：
The command set pm3d lighting selects a simple lighting model
consisting of a single fixed source of illumination contributing 50%
of the overall lighting. The strength of this light relative to the
ambient illumination can be adjusted by set pm3d lighting primary <fraction>. Inclusion of specular highlighting can be adjusted by
setting a fractional contribution:
set pm3d lighting primary 0.50 specular 0.0 # no highlights
set pm3d lighting primary 0.50 specular 0.6 # strong highlights
Solid-color pm3d surfaces tend to look very flat without
specular highlights. Since the highlights from a single source only
affect one side of the surface, a second spotlight source may be
desirable to add specular highlights from the opposite direction.
This is controlled by "spec2 ".
特定的调色板选择是否有帮助在很大程度上取决于您要展示的内容。照明模型本身可能就足够了，即使使用下图所示的最小调色板也是如此。
set palette rgbformulae 8, 9, 7
set pm3d depthorder noborder
set pm3d lighting specular 0.6
我正在制作 3D 表面图，我正在尝试调整 3D 表面图，以便它提供更多的深度和光线效果[参考图 1
不过，我的味觉选择确实不好
**#!/usr/local/bin/gnuplot
reset
set terminal postscript eps enhanced color size 12cm,12cm solid lw 3 "Times-Roman" 20
set output "Cubic.eps"
#set palette defined ( -0.09 "purple", -0.06 "blue", -0.03 "red", 0 "brown", 0.05 "yellow" )
#unset key
set pm3d
set parametric
set isosamples 100,100
set hidden3d
set sample 100,100
set surface
unset ylabel
unset zlabel
set title "(a)"
unset zrange
unset yrange
unset xrange
unset xtics
unset ytics
unset ztics
set border 0
set view 89,179,1,1
set zrange[-0.09:0.1]
#set cbrange[-0.09:0.1]
#set xlabel "k_x (2pi/a)" rotate parallel offset 2,7,8 font "Times-Bold,25"
#set zlabel "k_z(2pi/a)" rotate parallel offset 5,1,1 font "Times-Bold,25"
#set ylabel "k_y (2pi/a)" rotate parallel offset -5,7,0 font "Times-Bold,25"
splot 'data.dat' u 4:5:8 notitle, 'data.dat' u 4:5:9 w pm3d notitle, 'data.dat' u 4:5:7 w pm3d notitle,'data.dat' u 4:5:10 w pm3d notitle,'data.dat' u 4:5:10 w pm3d notitle,'data.dat' u 4:5:9 w pm3d notitle**
文档摘录：
The command
set pm3d lightingselects a simple lighting model consisting of a single fixed source of illumination contributing 50% of the overall lighting. The strength of this light relative to the ambient illumination can be adjusted byset pm3d lighting primary <fraction>. Inclusion of specular highlighting can be adjusted by setting a fractional contribution:
set pm3d lighting primary 0.50 specular 0.0 # no highlights
set pm3d lighting primary 0.50 specular 0.6 # strong highlights
Solid-color pm3d surfaces tend to look very flat without specular highlights. Since the highlights from a single source only affect one side of the surface, a second spotlight source may be desirable to add specular highlights from the opposite direction. This is controlled by "spec2 ".
特定的调色板选择是否有帮助在很大程度上取决于您要展示的内容。照明模型本身可能就足够了，即使使用下图所示的最小调色板也是如此。
set palette rgbformulae 8, 9, 7
set pm3d depthorder noborder
set pm3d lighting specular 0.6