def get_transform(self, rotation, tx, ty):
# Code taken from here:
# http://stackoverflow.com/questions/6041244/how-to-merge-two-landscape-pdf-pages-using-pypdf/17392824#17392824
# Unclear why PyPDF2 builtin page rotation functions don't work
translation = [[1, 0, 0], [0, 1, 0], [-tx, -ty, 1]]
rotation = math.radians(rotation)
rotating = [[math.cos(rotation),
math.sin(rotation), 0],
[-math.sin(rotation),
math.cos(rotation), 0], [0, 0, 1]]
rtranslation = [[1, 0, 0], [0, 1, 0], [tx, ty, 1]]
ctm = utils.matrixMultiply(translation, rotating)
ctm = utils.matrixMultiply(ctm, rtranslation)
return ctm[0][0], ctm[0][1], ctm[1][0], ctm[1][1], ctm[2][0], ctm[2][1]
def get_transform(self, rotation, tx, ty):
# Code taken from here:
# http://stackoverflow.com/questions/6041244/how-to-merge-two-landscape-pdf-pages-using-pypdf/17392824#17392824
# Unclear why PyPDF2 builtin page rotation functions don't work
translation = [[1, 0, 0],
[0, 1, 0],
[-tx,-ty,1]]
rotation = math.radians(rotation)
rotating = [[math.cos(rotation), math.sin(rotation),0],
[-math.sin(rotation),math.cos(rotation), 0],
[0, 0, 1]]
rtranslation = [[1, 0, 0],
[0, 1, 0],
[tx,ty,1]]
ctm = utils.matrixMultiply(translation, rotating)
ctm = utils.matrixMultiply(ctm, rtranslation)
return ctm[0][0], ctm[0][1], ctm[1][0], ctm[1][1], ctm[2][0], ctm[2][1]