AutoCAD ??????????????????????? CoordinateSystem ??????????????????????????? ?????????????? ???????????? ???????????? ??????????????????
Draw Toolbar ? ??????????? ???????????????
![](http://4.bp.blogspot.com/_FjPkHuW4BQw/SAv6gPPywvI/AAAAAAAAASI/ceNnh9lf6HE/s400/p7.jpg)
Specify first point : ????????? ???????????? ???? ( x , y )
Specify next point : ??????????????????? ???? ( x , y )
??????? ???????????? ?????????? ???????????????? Coordinate System ???????? ?????????????? (-2,1) ???????? ( 3,4) ?????????? ??????????????? ?????????????????
![](http://3.bp.blogspot.com/_FjPkHuW4BQw/SAv6T_PywuI/AAAAAAAAASA/BVyZVa7JYHI/s400/ks_01.gif)
Specify first point : -2,1
Specify next point: 3,4
???????? ????????? ?????????????????????? ???????????? ????????????????? ????????? ????????????? ?????????? ( 0,0 ) ????????? ????????? ??????????????? ?????????? ??? Original ??????? ???????????????? Absolute Coordinate System ??????????? ???????? ????????????????? ???????????? ???????? ?????????????? ???????????? ??????????? ?????? ????????????? ?????? ???????????????? ???????????????????
![](http://2.bp.blogspot.com/_FjPkHuW4BQw/SAv6NvPywtI/AAAAAAAAAR4/FuDfesf-lfk/s400/ks_02.gif)
Specify first point: -2,1
Specify next point: @5,0
Specify next point: @0,3
Specify next point: c
@ ????? ???????? ???????????? ??????? ?????????????? ??????? ???????? ????????????? ??????????? ????????????? ??????? ???????????????? Relative Coordinate System ??????????? ?????????? ????? ???????????? ???????? Angle ????? ??????????? ?????????? ?????????? ??????????? Counter Clockwise Direction ???????????????????
![](http://4.bp.blogspot.com/_FjPkHuW4BQw/SAv6IPPywsI/AAAAAAAAARw/xrkIrolLYQ0/s400/ks_03.gif)
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