Are you talking about this picture?
Many people are debating whether this so-called standard cartography is true or false.
For example: Some people say that assuming this picture is correct, the biggest flaw of this picture is that in addition to the so-called curve standardization, it is missing one of the most important things in standardized charting. How did he determine What is the angle-distance relationship between circles?
I also think this statement is correct. If this logo had to be copied mechanically, it would probably require dozens more lines! In fact, if you get rid of those mysterious gimmicks and just put it on the grid, everything will be simple.