...出New Symbol对话框，选择要创建的符号种类：Point symbol（点状符号）、 Line symbol （ 线状符号 ）、Area symbol（面状符号）、Text symbol（文本符号）、Line text symbol（线形文本符号）、Rectangle（矩形符号），然后按OK。
2
?面状标记
... 面水准丈量 area leveling 面状标记area symbol 瞄直法 sighting line method ...
On the base of analyzing the character and structure of the point, line, area symbols, a data structure of map symbol base which serves the symbolized output in digital mapping is put forward.