Hi! Well, I am not exactly blocked by the issue – it’s just that memory consumption really bothers me, because at the moment I cannot predict how huge the data might be, but it seems that scalability is a ‘must have’ in my case – I would like to get plots with lots of points, but without spending too much space. Going PNG-only is not really an option for me, because I specifically need my plots to be in one PDF. I discussed an option of creating something like a big tpad with all the necessary plots and then exporting it to png, but i was advised that it’s not a desired approach.
I also tried an advice from (Warning in <TASImage::Paint>: PDF not implemeted yet) about going to PS, but it created an even bigger file than my pdf, (something like ~350 kilobytes cummulative pngs size vs 3.2 megabytes PS file).
I also realized that it kinda depends on points – in small cases there’s no difference, but the further I go in terms of points amount, the huger PDF is.
At the moment I will be investigating for some kind of small C++ library that would allow me to fuze PNGs to PDF and see whether the idea is at all helping with size reduction.
But I am still very much looking forward to some advice, since I would love to do everything with ‘in-house’ methods of ROOT!