PDF Creator Pilot documentation |
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   Collapse AllCreates an elliptically curved path between points.
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| HRESULT PDFPAGE_Arc ( DOUBLE left, DOUBLE top, DOUBLE right, DOUBLE bottom, DOUBLE firstX, DOUBLE firstY, DOUBLE secondX, DOUBLE secondY, DOUBLE* currentX, DOUBLE* currentY ) |
Parameters
left
X coordinate of the left-top corner of the bounding rectangle.
top
Y coordinate of the left-top corner of the bounding rectangle.
right
X coordinate of the right-bottom corner of the bounding rectangle.
bottom
Y coordinate of the right-bottom corner of the bounding rectangle.
firstX
X coordinate of the 1st point.
firstY
Y coordinate of the 1st point.
secondX
X coordinate of the 2st point.
secondY
Y coordinate of the 2st point.
currentX
X coordinate of the curent point of the arc.
currentY
Y coordinate of the curent point of the arc.
Return value
If successful, this method returns S_OK. If it fails, this method should return one of the error values.
Remarks
This method draws a path as a part of an ellipse that is bounded by the rectangle with left-top corner (left, top) and right-bottom corner (right, bottom). The arc is drawn following the perimeter of the ellipse, counterclockwise, from the starting point to the ending point. The starting point is defined by the intersection of the ellipse and a line drawn from the center of the ellipse to the point (firstX, firstY). The ending point is defined by the intersection of the ellipse and a line drawn from the center of the ellipse to the point (secondX, secondY). The method returns the current point position in the two last parameters.
Example
Drawing an arc example
Delphi
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{ PDF object is supposed to be created }
PDF.BeginDoc;
currentX := 0;
currentY := 0;
PDF.PDFPAGE_MoveTo(100, 150);
PDF.PDFPAGE_Arc(100, 100, 200, 200, 150, 100, 100, 150, currentX, currentY);
PDF.PDFPAGE_Stroke;
PDF.EndDoc;
C/C++
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// PDF object is supposed to be created PDF->BeginDoc(); DOUBLE currentX = 0; DOUBLE currentY = 0; PDF->PDFPAGE_MoveTo(100, 150); PDF->PDFPAGE_Arc(100, 100, 200, 200, 150, 100, 100, 150, ¤tX, ¤tY); PDF->PDFPAGE_Stroke(); PDF->EndDoc();
C#
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// PDF object is supposed to be created PDF.BeginDoc(); double currentX = 0; double currentY = 0; PDF.PDFPAGE_MoveTo(100, 150); PDF.PDFPAGE_Arc(100, 100, 200, 200, 150, 100, 100, 150, out currentX, out currentY); PDF.PDFPAGE_Stroke(); PDF.EndDoc();
Visual Basic
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' PDF object is supposed to be created PDF.BeginDoc currentX = 0 currentY = 0 PDF.PDFPAGE_MoveTo 100, 150 PDF.PDFPAGE_Arc 100, 100, 200, 200, 150, 100, 100, 150, currentX, currentY PDF.PDFPAGE_Stroke PDF.EndDoc
See Also