AddPathCurve()

Syntax

AddPathCurve(x1.d, y1.d, x2.d, y2.d, x3.d, y3.d [, Flags])

Adds a cubic bezier curve to the vector drawing path. The curve starts at the current path position and ends at (x3, y3). The other two points determine the shape of the curve.

Parameters

x1.d, y1.d	The first control point of the curve.
x2.d, y2.d	The second control point of the curve.
x3.d, y3.d	The endpoint of the curve. This point will become the new path position.
Flags (optional)	Can be one of the following values: #PB_Path_Default : The positions are absolute (default) #PB_Path_Relative: The positions are relative to the last cursor position.

Return value

None.

Remarks

The below image shows the position of the reference points. See here for more information on bezier curves.

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))

      MovePathCursor(50, 100)
      AddPathCurve(90, 30, 250, 180, 350, 100)
      VectorSourceColor(RGBA(255, 0, 0, 255))
      StrokePath(10)
    
      StopVectorDrawing()
    EndIf
    
    Repeat
      Event = WaitWindowEvent()
    Until Event = #PB_Event_CloseWindow
  EndIf

See Also

MovePathCursor(), AddPathLine(), AddPathArc(), AddPathCircle(), AddPathEllipse(), AddPathBox()

Supported OS

All