Append a sequence of path segments in one call

Convenience wrapper that takes a tibble in the shape pdf_path_segments() returns and replays it as a series of appender calls on obj. Useful when you've read a path with pdf_path_segments(), edited the rows in R, and want to append the modified geometry to a fresh path object.

Usage

pdf_path_append(obj, segments)

Arguments

obj

A pdfium_obj of type "path". Parent doc must be readwrite.

segments

A tibble with at minimum the columns segment_type (character), x, y (numeric), and optionally close_figure (logical). Matches the pdf_path_segments() output exactly so a reader → edit → writer round-trip is a one-liner.

Value

Invisibly returns the parent pdfium_doc.

Details

Segment dispatch by the segment_type column:

• "moveto" → pdf_path_move_to() with (x, y).

• "lineto" → pdf_path_line_to() with (x, y).

• "bezierto" → cubic Bezier. PDFium's reader surfaces each cubic curve as three consecutive bezierto rows (two control points then the endpoint); this wrapper buffers two rows and emits a single pdf_path_bezier_to() call on the third.

Any row whose close_figure column is TRUE triggers a pdf_path_close() after its segment.

See also

pdf_path_segments().