DLI Implementation and Reference Guide - Datalogics

8.16 DLI Implementation and Reference Guide
end position of the line at completion of this operation. If the end position specified is
identical to the current position, no segment will be appended, and no notice will be
given (Optimization).
Concepts and Facilities: Guide to the DL Pager Composition System
dlpdfpathaddcurver
This method accepts seven parameters:
• The first is a pointer to a path.
• The second and third are the distance from current point to the X and Y positions of
a point which will be used for Control Point 1.
• The fourth and fifth are the distance from current point to the X and Y positions of
a point which will be Control Point 2.
• The sixth and seventh are the distance from the control point to the X and Y
positions of a point which will be the end point of the curve.
A smooth curve (A cubic Bézier) will be drawn from the current position to the end
position, under direction of the two control points. The current position will be the
end position of the line at completion of this operation. If the end position specified is
identical to the current position, no segment will be appended, and no notice will be
given (Optimization).
dlpdfpathaddcurvev
This method accepts five parameters:
• The first is a pointer to a path.
• The second and third are the X and Y positions of a point which will be used for
Control Point 2.
• The fourth and fifth are the X and Y positions of the end point of the curve.
A smooth curve (a cubic Bézier) will be drawn from the current position to the end
position, under direction of the two control points. Control Point 1 is the current
position. The current position will be the end position of the line at completion of this