Re: line corners with terminals for vector graphics

[Petr M. <mi...@ph...>]

> However, exactly at this point (filled_polygon, trickery with
> palettes, ...) proper documentation for current functionality is
> missing.

See src/README and term/README.

> but I'm a bit lost.

then you must investigate the code itself

> PostScript terminal uses some "cryptic code" for patterns, palettes,
> ... that is not documented anywhere else.

Read postscript reference book(s).

> For example, there's exactly only one place where "previous_palette" is 
> called. PostScript does only "grestore" and the source states that the 
> command could probably be dropped since no other terminal is using it.

This API was needed in 1998 when I wrote the pm3d code.

> Is PostScript "the" reference of how the functions are to be
> implemented in other terminals? Or who could help me with further
> suggestions what the "fill_polygon" and palette switching functions
> are supposed to do exactly?

You have to enjoy playing with the source code yourself.

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PM