FlipCoordinatesY()

Syntax

FlipCoordinatesY(AxisY.d [, System])

Mirrors the vector drawing coordinate system at the specified Y axis.

Parameters

AxisY.d	The Y coordinate at which the coordinate system should be mirrored.
System (optional)	Specifies the coordinate system to change. This can be one of the following values: #PB_Coordinate_User : Change the coordinate system for points in the drawing path (default) #PB_Coordinate_Source: Change the coordinate system for the vector drawing source

Return value

None.

Remarks

See the vectordrawing overview for an introduction to the different coordinate systems. The following image demonstrates the effect of flipped coordinates. The same figure is drawn twice, the original is in blue, and the version with flipped coordinates is in red.

Example

  If OpenWindow(0, 0, 0, 400, 200, "VectorDrawing", #PB_Window_SystemMenu | #PB_Window_ScreenCentered)
    CanvasGadget(0, 0, 0, 400, 200)    
    
    If StartVectorDrawing(CanvasVectorOutput(0))
      VectorFont(LoadFont(0, "Times New Roman", 60, #PB_Font_Bold))

      VectorSourceColor(RGBA(0, 0, 255, 128))
      MovePathCursor(50, 50)
      DrawVectorText("Test")
    
      FlipCoordinatesY(120)
    
      VectorSourceColor(RGBA(255, 0, 0, 128))
      MovePathCursor(50, 50)
      DrawVectorText("Test")    
    
      StopVectorDrawing()
    EndIf
    
    Repeat
      Event = WaitWindowEvent()
    Until Event = #PB_Event_CloseWindow
  EndIf

See Also

ResetCoordinates(), TranslateCoordinates(), ScaleCoordinates(), RotateCoordinates(), SkewCoordinates(), FlipCoordinatesX(), ConvertCoordinateX(), ConvertCoordinateY()

Supported OS

All