[cl-pdf-devel] Eliminating ratios and naming coordinate parameter

[Dmitri Ivanov]

Hello,

If we want to operate freely on rational numbers as coordinate values, e.g.
when calling pdf:add-link, we do need something like the following:

(defmethod write-object ((number ratio) &optional root-level)
  (declare (ignorable root-level))
  (format *pdf-stream* "~,3f" number))

I have got another complaint :-(  It is about naming coordinate parameters
of various functions. Every time I see
    (draw-block content x y dx dy ...),
I manage to remember that x is left, dx is width, dy is height. But
remembering what y means, top or bottom, is a real pain IMHO.

Is there any consistency rule?
Could we rewrite definitions like the above to
    (defun draw-block content left top dx dy ...) ?
--
Sincerely,
Dmitri Ivanov
lisp.ystok.ru