[pstricks] Nodes at the ends of a tangent line

[Herbert Voss]

Akos Valentinyi wrote:

> I do regularly a type of graph (see below) where the 
> tangent line to a curve extends to both the Y and the 
> X axis.
> 
> Right now I am doing in a complicated way. However,
> if \plotTangent would give me two nodes, one
> at each end of the tangent line, this could
> be simplified. This is basically having
> the slope of the tangent line in terms of two
> nodes.
> 
> Any chance for that?

no, not really. \psplotTangent works on PostScript level
and it is not possible to pass informations from PS to TeX.

Herbert