һ MapBasic 䡣
Set Map XY Units unitnameΪǰͼX,Y굥λ
Set Map CoordSys NonEarth Units unitname趨ǰͼ
ͶӰʽԵǰͼִµһ䣺
	 Set Map XY Units "m" CoordSys NonEarth Units "m"
ʱ "ͼ" > "ѡ" 鿴ǰͼڵԣᷢ
ǰͼڵ굥λΪmͶӰʽΪNon-Earth(m)

û½һNon-Earth(Km)ͶӰ Bounds (0,0)(100,100)ͼ
MapBasicӵͼʱͨӸõͼϻȡ
XYϢһҪ
	 set map Window frontwindow() xy units "Km" coordsys NonEarth Units "mm" 

         Set Map XY Units "mm" Distance Units "mm" CoordSys NonEarth Units "mm"

MapBasicȱʡϵͳMapBasicĳͶӰϵͳûͼڵͶӰ
ϵͳһ£MapBasic쳣ͶӰʽҲӦͬĴ