draw-arc

Draws an arc. The current pen is used for the outline and the current brush for filling the shape.

• (send a-wx:canvas draw-arc x1 y1 x2 y2 xc yc) -> void
      x1 : inexact real
      y1 : inexact real
      x2 : inexact real
      y2 : inexact real
      xc : inexact real
      yc : inexact real

  Draws a counter-clockwise circular arc, centred on (xc, yc) with starting point (x1, y1) and ending at (x2, y2).

  Restrictions on the magnitude of drawing coordinates are described with wx:dc%.