在gnuplot中为3D图叠加矢量dgrid3d和pm3d

debugcn 发表于 Dev

再也没有了

我正在尝试在Gnuplot中绘制一个矢量场，将dgrid3d，pm3d和矢量叠加在一起。我可以使dgrid3d和pm3d正常工作，但是当我尝试叠加矢量时，会发生奇怪的事情。

我正在尝试以下方法：

set dgrid3d 50,50,2
set pm3d at b
set hidden3d
splot 'v-field.dat' u 1:2:6 w l, "" u 1:2:3:4:5:6 w vectors

数据格式为：

0.0000000020000000 0.0833272880000000 0 0 0 1.62609277247135e-09
0.5000000020000001 0.5833272880000000 0 0 0 0.965930741599645
0.8749688835000000 0.2083182225000000 0 0 0 0.233003475483508
0.3749688835000000 0.7083182225000000 0 0 0 0.732959928249388
0.7499740065000000 0.3333133385000000 0 0 0 0.612400228894737
0.2499740065000000 0.8333133384999999 0 0 0 0.353562980611359
0.6250021815000000 0.4583253445000000 0 0 0 0.915969987957243
0.1250021814999999 0.9583253445000000 0 0 0 0.0499605601370936
0.2500301575000000 0.0833358625000000 0 0 0 0.183035467628336
0.7500301575000000 0.5833358625000000 0 0 0 0.682946534409448
0.1250311175000000 0.2083182225000000 0 0 0 0.233003477250229

抱歉，如果以前有人问过我，我是gnuplot的新手。

西奥日

我想问题是set dgrid3d绘图与绘图with vectors不兼容。gnuplot可能还会尝试对向量进行插值。一种工作方式是将内插的网格化表面绘制到一个数据块中，然后unset dgrid3d。好吧，您的向量几乎不可见，并且当您旋转图形时，表面和基部的深度顺序仍然存在问题，而到目前为止我还无法解决。

码：

# combining dgrid3d and vectors
reset session

$Data <<EOD
0.0000000020000000 0.0833272880000000 0 0 0 1.62609277247135e-09
0.5000000020000001 0.5833272880000000 0 0 0 0.965930741599645
0.8749688835000000 0.2083182225000000 0 0 0 0.233003475483508
0.3749688835000000 0.7083182225000000 0 0 0 0.732959928249388
0.7499740065000000 0.3333133385000000 0 0 0 0.612400228894737
0.2499740065000000 0.8333133384999999 0 0 0 0.353562980611359
0.6250021815000000 0.4583253445000000 0 0 0 0.915969987957243
0.1250021814999999 0.9583253445000000 0 0 0 0.0499605601370936
0.2500301575000000 0.0833358625000000 0 0 0 0.183035467628336
0.7500301575000000 0.5833358625000000 0 0 0 0.682946534409448
0.1250311175000000 0.2083182225000000 0 0 0 0.233003477250229
EOD

set dgrid3d 30,30,2
set pm3d at b 
set hidden3d

set table $Surface
    splot $Data u 1:2:6
unset table

unset dgrid3d

splot $Surface u 1:2:3 w l , \
      $Data u 1:2:3:4:5:6 w vectors lw 2 lc rgb "red"
### end of code