Page 45 - Autocad 2D Basic - Ebook
P. 45

Drawing Command:


                                                                                               Line




                                                             Relative coordinate technique









                        EXAMPLE








                                                   Y
                                         X













                  Point                              Description                               @X, Y


                    1                               Starting point                              2, 4


                                Find the relative coordinate 1 to 2. The coordinate X  is
                    2                                                                          @0, 6
                                      become ‘0’ because it’s does not change.


                                Find the relative coordinate 2 to 3. The coordinate X is
                                                    Cos 22 = X/8
                                    8          Y X = 0.927 x 8 = 7.42
                                        22˚      The coordinate Y is
                    3                                                                         @7.42, 3
                                        X







                                Find the relative coordinate 3 to 4. The coordinate Y is
                    4                                                                          @10, 0
                                      become ‘0’ because it’s does not change.






                                                            39
   40   41   42   43   44   45   46   47   48   49   50