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The red dot is made by \psdots while the blue one is made by \pscircle. By clicking the red dot viewed by Adobe Acrobat, there will be a blinking cursor. But a blinking cursor does not exist on the blue dot.

enter image description here



Why is there a blinking cursor on a dot produced by \psdots? What is it for?

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up vote 11 down vote accepted

\psdots uses characters from a self defined Type-3 vector font, also known as a softfont:

voss@shania:~/Test> pdffonts test.pdf
name                          type              encoding         emb sub uni object ID
Helvetica                     Type 1            Standard         no  no  no       8  0
[none]                        Type 3            Custom           yes no  no      11  0

With \pscircle you get a graphical object. For a character like the dot the cursor behaves as usual for other characters. And, by the way, it is an example that a Type 3 font can also be a vector font!

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ah +1 more detail than mine, so I deleted mine, David –  David Carlisle Sep 18 '12 at 20:02
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