I've got a LaTeX a.tex document and a picture, created with inkscape0.47 and saved as b.tex file.
I want to \input that b.tex file with picture to a.tex.

I've included PSTricks package in a.tex as required, but still pdflatex curses that it sees undefined control sequences in b.tex, e.g.

! Undefined control sequence.
<recently read> \c@lor@to@ps

I assume that I should've used some more packages in a.tex? Can anyone help me out, how do I do such an input? Failed to find a guide for my case, they all speak of eps/pdf import.

Welcome to InkscapeForum!

I can't answer your question, but thought I would reply and bump it back to the top. It seems reasonable that someone here should have some ideas