DynaPDF Manual - Page 322

Function Reference
Page 322 of 818
DrawArcEx
Syntax:
SI32 pdfDrawArcEx(
const PPDF* IPDF,
// Instance pointer
double PosX,
// X-Coordinate of the midpoint of the arc
double PosY,
// Y-Coordinate of the midpoint of the arc
double Width,
// Width of the bounding rectangle
double Height,
// Height of the bounding rectangle
double StartAngle, // Start angle
double EndAngle)
// End angle
This function draws an elliptical arc. A full ellipse is drawn if the start and end angles are the same.
The path is not closed, stroked or filled so that it will be invisible as long it is not stroked, filled or
both (see ClosePath() or StokePath() for further information).
The current point is connected with the start point and then updated to the end point of the ellipse.
The draw direction can be changed with the function SetDrawDirection(). The start and end angles
are always measured counter clockwise independent of the drawing direction.
Return values:
If the function succeeds the return value is 1. If the function fails the return value is 0.
DrawChord
Syntax:
SI32 pdfDrawChord(
const PPDF* IPDF,
// Instance pointer
double PosX,
// X-Coordinate of the midpoint of the chord
double PosY,
// Y-Coordinate of the midpoint of the chord
double Width,
// Width of the bounding rectangle
double Height,
// Height of the bounding rectangle
double StartAngle,
// Start angle
double EndAngle,
// End angle
TPathFillMode FillMode) // Fill mode
This function draws an elliptical chord (a region bounded by the intersection of an ellipse and a line
segment, called a secant).
The draw direction can be changed with the function SetDrawDirection(). The start and end angles
are always measured counter clockwise independent of the drawing direction.
A chord is a closed path that can be filled, stroked or both. It is also possible to draw a chord
invisible to apply the filling rules nonzero winding number or even-odd. The filling rules are
described under ClipPath(). The parameter FillMode is ignored if the chord is drawn inside a
clipping path. The fill modes are described under ClosePath().

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