[Gnuplot-info] output 3d coordinates corresponding to the projected 2d coordinates, z buffering

[A. S. <adr...@gm...>]

Dear Gnuplot developer.

Consider the example 'Interlocking Tori'

http://gnuplot.sourceforge.net/demo/surface2.9.gnu

from the Gnuplot website.

When using the TikZ terminal, a file is generated which uses 2d
coordinates which originate from the projection of the 3d coordinates
into the 2d view plane. Instead of the 2d coordinate output, I would
like to output table data of the 3d coordinates corresponding to ONLY
the projected 2d coordinates, not to ALL the 3d coordinates like you get
with the table terminal. In particular, I would like the table output to
clearly distinguish the data per object, in this case the two 'donut'
objects and the axes object.

Is this possible with Gnuplot? If so, how can I achieve this?

Thank you for your time,

Adriaan Sillem