Set the affine transformation matrix of a page object

Wraps FPDFPageObj_SetMatrix. Replaces the page object's current transformation matrix (CTM) with the given 2D affine transform. Accepts either a 3x3 homogeneous matrix (matching the shape pdf_obj_matrix() returns) or a length-6 vector c(a, b, c, d, e, f) in PDF column-major order.

Usage

pdf_obj_set_matrix(obj, matrix)

Arguments

obj

A pdfium_obj from pdf_page_objects(). Parent doc must be readwrite.

matrix

Either a 3x3 numeric matrix (with bottom row (0, 0, 1)) or a length-6 numeric vector.

Value

Invisibly returns the parent pdfium_doc.

See also

pdf_obj_matrix() for the read side.