雷哥,请教一下按照那个教程第四章,按下preview all 后并未出现棱镜三维图,为什么呢?? P{!:pxu[
System being written to file geo_bld.sys \q|PHl
--- SYSTEM NEW; RESET; RAYS 0 it@} dZ
0 rays defined &;U7/?Q
--- $PLOT NORM A'1AU:d
--- $IO PLOT ^u!Tyb8Dk
--- SYSTEM FROM GEO_BLD O)uM&B=
System being read from file geo_bld.sys vqOLSE"t*O