| cairoRelLineTo {RGtk2} | R Documentation |
Relative-coordinate version of cairoLineTo. Adds a line to the
path from the current point to a point that is offset from the
current point by (dx, dy) in user space. After this call the
current point will be offset by (dx, dy).
cairoRelLineTo(cr, dx, dy)
|
[Cairo] a cairo context |
|
[numeric] the X offset to the end of the new line |
|
[numeric] the Y offset to the end of the new line |
Given a current point of (x, y), cairo_rel_line_to(cr, dx, dy)
is logically equivalent to cairo_line_to (cr, x + dx, y + dy).
It is an error to call this function with no current point. Doing
so will cause cr to shutdown with a status of
CAIRO_STATUS_NO_CURRENT_POINT.
Derived by RGtkGen from GTK+ documentation