[OS X TeX] texshop and preview
Ross Moore
ross.moore at mq.edu.au
Sun May 23 16:26:59 EDT 2010
On 24/05/2010, at 5:20 AM, Michael Sharpe wrote:
> I have some more details that are puzzling, to say the least.
>
> 1. If I run pstopdf on the ps file, I get a a cut-off circle, and
> the media box is set to [0 0 50.81 50.81], a bit smaller ( a little
> less than half a line width) than the BoundingBox in the ps file.
> (This is the same size media box produced by pdflatex.)
72/72.27 x 51 = 50.80946450809465 ~ 50.81
TeX applies the 72/72.27 rescaling to the values provided in the
Tikz code,
(unless you have specified 'truept' as the unit of measure; e.g. 51
truept.)
>
> 2. If I run eps2pdf on the eps file, ...
What was the BoundingBox in the .eps ?
Presumably this is what goes into the MediaBox here:
> ... I get no cut-off, and the media box is set to [0 0 51 51].
This is a rounding to the nearest (higher?) integer.
Since it is larger, then you'd not expect any cutoff.
>
> 3. There appear to be few substantial differences between the .ps
> and .eps---the BoundingBoxes are the same,
Not sure what you mean by this; there is no BoundingBox in the .ps file.
This is not created until the conversion to .eps .
> and I removed the HiResBoundingBox from the .eps just in case that
> was an issue. (It was not.)
When I follow those steps, the .eps starts with:
%!PS-Adobe-2.0 EPSF-2.0
%%BoundingBox: 0 791 50 842
%%HiResBoundingBox: 0.442188 791.842188 49.957813 841.357813
which converts to PDF with
<</Type/Page/MediaBox [0 0 50 51]
This is similar to what I get with pdfcrop on the PDF made
using pdflatex .
It is not exactly square, so should be regarded as incorrect, IMHO.
>
> 4. When I ran eps2pdf on the ps file, cut-off occurred. So, the
> differences between the eps and ps must be significant, but I don't
> understand why.
That rounding down to 50 instead of up to 51 should result
in a small cut-off at the right.
If there is also cutoff at the top, then a small translation
must have occurred also, when creating the .eps version.
>
> Michael
Hope this helps,
Ross
------------------------------------------------------------------------
Ross Moore ross.moore at mq.edu.au
Mathematics Department office: E7A-419
Macquarie University tel: +61 (0)2 9850 8955
Sydney, Australia 2109 fax: +61 (0)2 9850 8114
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