Re: Three small bugs with splot

[sfeam <sf...@us...>]

On Sunday, 25 January 2015 07:57:39 PM Philipp K. Janert wrote:
> 
> 1) The inline nohidden3d seems to have no effect
> 
> 	set isosamples 30; set hidden3d
> 	splot exp(-(x**2+y**2)), 0.5 nohidden3d
> 
> The plane should be transparent; it isn't.

The documentation says:

  As of gnuplot version 4.6, hidden3d also affects 3D plotting styles `points`,
  `labels`, `vectors`, and `impulses` even if no surface is present in the graph.
  Unobscured portions of each vector are drawn as line segments (no arrowheads).
  Individual plots within the graph may be explicitly excluded from this
  processing by appending the extra option `nohidden3d` to the `with` specifier.

This may be insufficiently explicit, but the intended meaning is that the
plot styles {points|labels|vectors|impulses} are now subject to hidden3d
by default but can be exempted using the "nohidden3d" keyword.
This keyword does not affect plot styles other than these four, and in
particular it makes no sense to try to exclude actual surfaces from the surface
processing.

Transparency is a whole other question.  

	Ethan