# How to reverse the direction of the y axes on Graphics

Question related to this one, except I need the same for the Graphics.

Lets say I have the following drawings:

Graphics[{
Line[{ Q, P, V }] ,
Arrow[{P, P + v }] ,
Arrow[{P, P + vx }] ,
Arrow[{P, P + vy}] ,

{Dashed,
Line[{Q + (dir1*d1), P + v,  V + (dir2*d2)}]
},

FontSize -> 16, Background -> RGBColor[1, 1, 1, 1],
Text["Q", Q],
Text["P", P],
Text["V", V],
}, Axes -> True]


But on my drawing sysytem (this drawing should illustrate part of it work), the screen coordinates goes from top to bottom (in reverse order). So I want to reverse it somehow.

-
Rasher's answer in the question you linked to is probably the way to go. –  Pickett Apr 3 '14 at 6:40
I don't understand what he do in his answer. –  tower120 Apr 3 '14 at 11:16

Rasher's code will be usefull here but we also have to Scale all the obcjets which is easy but no so simple as - in case of Plot.

Graphics[
Scale[#, {1, -1}, {0, 0}] &@{Circle[{2, 2}], Arrow[{{3, 2}, {5, 3}}]}
,
Axes -> True, AxesOrigin -> {0, 0}, BaseStyle -> {15, Bold},

@tower120 You will find more about those signs in FAQ. Here we are creatinng a function, which is more clear in Rasher's answer. We can put a function of two arguments to ticks and it will aplly ticks according to it. Take a look at documentation fo Ticks, Details and Options section at first. –  Kuba Apr 3 '14 at 17:15