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?? _t$lcOT
System being written to file geo_bld.sys m~##q}LZ
--- SYSTEM NEW; RESET; RAYS 0 {An8/"bv}
0 rays defined ^uC"dfH
--- $PLOT NORM `@4 2jG}*
--- $IO PLOT /z/hUa
--- SYSTEM FROM GEO_BLD y=-{Q
System being read from file geo_bld.sys tceIA8d6