DLI Implementation and Reference Guide - Datalogics

DLI Reference Guide A.119
dlpdfpathaddelliparc (DLPDFPATH *Path, ASFixed CentX,
ASFixed CentY, ASFixed HRad, ASFixed VRad, ASFixed T1, ASFixed T2)
Return Value: void
Description
Parameters
Return Value
Appends an arc segment to the current path. This method
accepts seven parameters.
• DLPDFPATH *Path is the pointer to the path.
• ASFixed CentX is the X-axis position of the arc center
point.
• ASFixed CentY is the Y-axis position of the arc center
point.
• ASFixed HRad is the horizontal radius of the ellipse
defining an arc segment.
• ASFixed VRad is the vertical radius of the same ellipse. The
HRad and VRad functions support creating arc segments
from an elliptical shape, as opposed to the circular shape
described in dlpdfpathaddarc, although if the same
value is used for both horizontal and vertical radii, it behaves
identically to dlpdfpathaddarc.
• ASFixed T1 is the beginning arc angle (where zero is
directly to the right of center).
• ASFixed T2 is the ending arc angle.
void
Exceptions
Header
Related Methods
dli.h
dlpdfpathaddarc,
dlpdfpathaddarcn,
dlpdfpatthaddarcto,
dlpdfpathadddelliparcn,
dlpdfpathaddelliparcto
Availability
Technical Notes
1 If the current position does not coincide with the position defined by
(CentX,CentY,HRad,VRad,StartAngle), then a straight line segment will be added from the
current position to get there. A smooth curve of the specified radius will be drawn from that specified
point counter-clockwise to the point specified by (CentX,CentY,HRad,VRad,EndAngle). The current
position will be set to that ending point. If the starting and ending points specify the same angle, a full
circle will be drawn.
2 The position following this command will be the specified position.