https://gnuplot.sourceforge.net/demo/circles.html
gnuplot demo script: circles.dem
# # demo for the use of "set object circle" and "plot ... with circles" # # Dynamically calculated pie charts # Reworked earlier demo to use data from a file with a more realistic format, # a table with regions in the rows and energy numbers in the columns
gnuplot.sourceforge.net
Lena's key points-점 간격 좀 더 넓히면 사진 주고 점 찍어서 별자리로 만들 때 사용할 수 있을 듯