[pstricks] Disappearing points

[Michael J. Sharpe]

Does the same thing happen with [showpoints=true] ?

>I take a given file and draw a \psccurve with [showpoints=yes]
>parameter.
>
>I run the file through tex and dvips -Ppdf
>
>If I display the result using gv the curve appears and the points of
>the curve are also shown.
>
>If i then convert it to a pdf using ps2pdf and display the result
>using acroread the curve is still there but the points have
>disappeared.
>
>  If I display it using xpdf the points have also disappeared.
>
>So the line drawing function of pstricks passes through to the pdf
>file but the points do not. 
>
>Can someone cite a general rule for what pieces of pstricks
>will pass through ps2pdf and what pieces won't.?
>
>John Culleton
>john at wexfordpress.net
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