Pie

function Pie(const rec: TRect; StartAngle, EndAngle: double): TPathD;


The path follows an elliptical curve defined by the 'rec' parameter, starting at 'startAngle' (with 0 degrees at 3 o'clock) and progressing anti-clockwise to 'endAngle' (angles in Radians) before finishing at the elliptical center.

uses 
  Img32, Img32.Fmt.PNG, Img32.Vector, Img32.Draw;
...
var
  img: TImage32;
  path: TPathD;
  rec: TRect;
begin
  img := TImage32.Create(256,256);
  rec := img.Bounds;
  Windows.InflateRect(rec, -3,-3);
  path := Pie(rec, angle15, -angle15);
  
  //start with a drop shadow
  DrawShadow(img, path, frNonZero, 6);
  //draw the polygon
  DrawPolygon(img, path, frNonZero, $FF00DD00);
  //and add a 3D button effect
  Draw3D(img, path, frNonZero, 10,6);
  //finish with a solid green outline
  DrawLine(img, path, 5, clGreen32, esPolygon);

  img.SaveToFile('pie.png');
  img.Free;
end;

See Also

Arc