DLI Implementation and Reference Guide - Datalogics

A.132 DLI Reference Guide
Ctrl1X/
Ctrl1Y
Concepts and Facilities: Guide to the DL Pager Composition System
EndX/
EndY
StartX/
StartY
Ctrl2X/
Ctrl2Y
Technical Notes
1 A smooth curve (a cubic Bézier) will be drawn from the current position to the end
position, under direction of the two control points. At completion of this
operation, the current position will be the end position of the line. If the end
position specified is identical to the current position, no segment will be appended
and no notice will be given (optimization).
2 All Bézier curves consist of four points. This method (as well as
dlpdfpathaddcurver, dlpdfpathaddcurvev and dlpdfpathaddcurvey)
uses current position as the starting point of the curve. The first two parameters of
this method are the position of Control Point1, the second two parameters are the
position of Control Point 2, and the last two parameters are the position of the
end point of the curve.
3 If no starting point is specified, the method will raise an exception
(genErrBadParm).