DrawChord
向量圖形
描述
繪製圓弧，並以弧終點到弧起點之間的直線弦封閉
語法
Delphi
Function TPDFlib.DrawChord(XPos, YPos, Radius, StartAngle, EndAngle: Double; DrawOptions: Integer): Integer;ActiveX
Function PDFlib::DrawChord(XPos As Double, YPos As Double, Radius As Double, StartAngle As Double, EndAngle As Double, DrawOptions As Long) As LongDLL
int DLDrawChord(int InstanceID, double XPos, double YPos, double Radius, double StartAngle, double EndAngle, int DrawOptions);參數
| XPos | 圓心的水平座標 |
|---|---|
| YPos | 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 chord path was drawn |
備註
形狀要經過圓心封閉時，請用 DrawPie