# [pstricks] rotated vector in pstricks

Nitecki, Zbigniew H. Zbigniew.Nitecki at tufts.edu
Sun Jun 2 23:15:45 CEST 2013

```Juergen:
I like it.  Thanks!
Z
On Jun 2, 2013, at 17:11, Juergen Gilg wrote:

Dear Ziggy,

there is another nice way to do the same -- try

\rput(0,0.5){\psline(0,0)(0.25;45)}

Now if you separate coordinates with a ";" instead of a "," -- this tells PSTricks to use POLAR COORDINATES (Radius;Angle with positive x-axis) instead of (x,y)

Very helpful for lines with a given length and angle with the horizontal starting in the origin.

Regards,

Jürgen
Am 02.06.2013 22:57, schrieb Nitecki, Zbigniew H.:

Juergen:
I can't believe I made as stupid a mistake as that and didn't catch it.  Thanks, this seems to work fine.
Ziggy

On Jun 2, 2013, at 16:51, Juergen Gilg wrote:

Dear Ziggy,

\rput{45}(0,0.5){\psline(0,0)(0.25,0)}

In the "(...)" PSTricks wants the coordinates -- seperated by a COMMA...

Hope this helps.

Regards,

Jürgen

Am 02.06.2013 22:44, schrieb Nitecki, Zbigniew H.:

If I want to draw a vector of length, say, 0.25 making an angle of, say 45 degrees with the horizontal, and put it so its tail is at, say, (0,0.5), what is wrong with writing
\rput{45}(0.05){\psline(0,0)(0.25,0)}
?
I am getting the error message
./Parallel.tex:477: Missing number, treated as zero.
\relax
l.477 \rput{45}(0.05){\psline(0,0)(0.25,0)}

If I hit "r" (ignore) the vector prints properly, but I would like to know what the missing number is.

Zbigniew Nitecki
Department of Mathematics
Tufts University
Medford, MA 02155

telephones:
Office    (617)627-3843
Dept.    (617)627-3234
Dept. fax    (617)627-3966
http://www.tufts.edu/~znitecki/

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--
Jürgen Gilg
Austr. 59
70376 Stuttgart

tel   0711 59 27 88
email gilg at acrotex.net<mailto:gilg at acrotex.net><mailto:gilg at acrotex.net><mailto:gilg at acrotex.net>

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Zbigniew Nitecki
Department of Mathematics
Tufts University
Medford, MA 02155

telephones:
Office    (617)627-3843
Dept.    (617)627-3234
Dept. fax    (617)627-3966
http://www.tufts.edu/~znitecki/

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PSTricks mailing list
PSTricks at tug.org<mailto:PSTricks at tug.org>
http://tug.org/mailman/listinfo/pstricks
archive: http://www.tug.org/pipermail/pstricks/

--
Jürgen Gilg
Austr. 59
70376 Stuttgart

tel   0711 59 27 88
email gilg at acrotex.net<mailto:gilg at acrotex.net>

_______________________________________________
PSTricks mailing list
PSTricks at tug.org<mailto:PSTricks at tug.org>
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archive: http://www.tug.org/pipermail/pstricks/

Zbigniew Nitecki
Department of Mathematics
Tufts University
Medford, MA 02155

telephones:
Office    (617)627-3843
Dept.    (617)627-3234
Dept. fax    (617)627-3966
http://www.tufts.edu/~znitecki/

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