DrawPie
向量圖形
描述
繪製封閉的圓形扇區：從圓心到弧起點、沿弧前進，再回到圓心
語法
Delphi
Function TPDFlib.DrawPie(XPos, YPos, Radius, StartAngle, EndAngle: Double; DrawOptions: Integer): Integer;ActiveX
Function PDFlib::DrawPie(XPos As Double, YPos As Double, Radius As Double, StartAngle As Double, EndAngle As Double, DrawOptions As Long) As LongDLL
int DLDrawPie(int InstanceID, double XPos, double YPos, double Radius, double StartAngle, double EndAngle, int DrawOptions);參數
| XPos | 扇形圓心的水平座標 |
|---|---|
| YPos | 扇形圓心的垂直座標 |
| Radius | 圓弧半徑，以目前量測單位計 |
| StartAngle | 起始角度（度） |
| EndAngle | The end angle in degrees |
| DrawOptions | 0 = 外框，1 = 填色，2 = 填色加外框 |
傳回值
| 0 | 角度掃角或繪圖選項無效 |
|---|---|
| 1 | The pie path was drawn |
備註
封閉段要從弧終點直連弧起點、不經過圓心時，請用 DrawChord