Hello,
I have an issue with a plain TeX document I am writing. I need to compile drawings as well as images into pdfs. I know how to get images into a pdf using \pdfximage which works if I compile with pdfTeX. I also know how to get drawings into a pdf using TeXdraw and compiling first with TeX into a dvi file, then converting the dvi file to a pdf file (since dvi files support PostScript).
Unfortunately these solutions don't combine in any way. Of course I could draw the diagram I want in a picture, but it is not always the easiest solution.
Is there a way to draw lines/circles/etc in plain TeX without using PostScript?