are there any 2D pictslider type objects available in Pure Data which track two sliders to give a positional output on the screen?

Hi,

Not sure I understand your qs. correctly, but you may have
a look at the 2-D control "grid" from unauthorized library

Alberto

https://puredata.info/Members/AlbertoZ/

You can do this with gridflow (if you don't mind a separate window, not sure what the status of [#peephole] is at the moment):

[#out window]
|
[#mouse]
| | | (first three outlets)
click / drag / unclick - each being a "list <y-coord> <x-coord>"

See this thread for a simple example of using Gridflow as a user interface:

http://puredata.hurleur.com/sujet-519-grid-trigger-videos