DLI Implementation and Reference Guide - Datalogics

Working with Content 8.13
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. The position following this
command will be the specified position.
dlpdfpathaddarcto
This method accepts six parameters:
• The first is a pointer to the path.
• The second is an Xposition of the intersection of tangents.
• The third is the Yposition of the intersection of tangents.
• The fourth is the Xposition of a point defining the second tangent.
• The fifth is the Yposition of a point defining the second tangent.
• The sixth is the radius of the arc.
The two lines (CurrX, CurrY)->(X1,Y1) and (X2,Y2)->(X1,Y1) are joined by an arc
of radius (R). The line segment from the current position to the start of the arc is
drawn, followed by the arc itself. The line segment from the end of the arc to the point
X2,Y2 is not drawn. The position following this command will be the intersection of
the arc with the line (X2,Y2)->(X1,Y1). If the two lines are colinear, a straight line
segment is drawn from current position to (X1,Y1), which then becomes the current
point.
dlpdfpathaddelliparc
This method accepts seven parameters:
• The first is a pointer to the path.
• The second is an Xposition of the arc center point.
• The third is the Yposition of the arc center point.
• The fourth is the horizontal radius (HRad) of the ellipse defining an arc segment.
• The fifth is the vertical radius (VRad) of the same ellipse. The HRad and VRad
functions support creating arc segments from an elliptical shape, instead of a
circular shape as described in dlpdfpathaddarc. If the same horizontal and