Delphi GDI+学习记录(18): 闭合曲线

//闭合曲线
var
　g: TGPGraphics;
　p: TGPPen;
　sb: TGPSolidBrush;
　pts: array[0..4] of TGPPoint;
begin
　g := TGPGraphics.Create(Canvas.Handle);
　sb := TGPSolidBrush.Create(MakeColor(255,255,255));
　p := TGPPen.Create(MakeColor(255,0,0),4);
　pts[0].X := 77;　pts[0].Y := 44;
　pts[1].X := 66;　pts[1].Y := 111;
　pts[2].X := 88;　pts[2].Y := 222;
　pts[3].X := 111; pts[3].Y := 88;
　pts[4].X := 222; pts[4].Y := 66;
　g.DrawClosedCurve(p, PGPPoint(@pts), Length(pts), 2.5);
　{参数 4 是曲度, 可选, 默认 0.5}
　g.FillClosedCurve(sb, PGPPoint(@pts), Length(pts), FillModeAlternate, 2.5);
　{既然是闭合的就可以填充, 参数 4 是填充模式, 另一个可选值是: FillModeWinding}
　p.Free;
　sb.Free;
　g.Free;
end;

时间： 2024-10-14 22:33:24

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