Your message dated Sun, 21 Feb 2016 16:36:34 +0100
with message-id <[email protected]>
and subject line Re: Bug#295271: xfig resolution seems to be wrong
has caused the Debian Bug report #295271,
regarding xfig resolution seems to be wrong
to be marked as done.
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--
295271: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=295271
Debian Bug Tracking System
Contact [email protected] with problems
--- Begin Message ---
Package: xfig
Version: 1:3.2.5-alpha5-3
Severity: minor
Hi,
In usr/share/doc/xfig/FORMAT3.2.gz says that default xfig resolution
is 1200ppi, but if I use xfig and draw a box with coords (0,0) and
(10cm, 10cm), I can see in its output file:
2 2 0 1 0 7 50 -1 -1 0.000 0 0 -1 0 0 5
0 0 4500 0 4500 4500 0 4500 0 0
That is, box is in xfig points (0,0) (4500,4500). If it were 1200ppi,
it should be (0,0) and (4724,4724). It seems that Xfig is using a
resolution around 1140ppi instead of 1200.
Can you check that?
Thanks,
Pedro
-- System Information:
Debian Release: 3.1
APT prefers testing
APT policy: (500, 'testing')
Architecture: i386 (i586)
Kernel: Linux 2.6.8-2-386
Locale: LANG=pt_BR, LC_CTYPE=pt_BR (charmap=ISO-8859-1) (ignored: LC_ALL set to
pt_BR)
Versions of packages xfig depends on:
ii libc6 2.3.2.ds1-20 GNU C Library: Shared libraries an
ii libice6 4.3.0.dfsg.1-10 Inter-Client Exchange library
ii libjpeg62 6b-9 The Independent JPEG Group's JPEG
ii libpng12-0 1.2.8rel-1 PNG library - runtime
ii libsm6 4.3.0.dfsg.1-10 X Window System Session Management
ii libx11-6 4.3.0.dfsg.1-10 X Window System protocol client li
ii libxext6 4.3.0.dfsg.1-10 X Window System miscellaneous exte
ii libxi6 4.3.0.dfsg.1-10 X Window System Input extension li
ii libxmu6 4.3.0.dfsg.1-10 X Window System miscellaneous util
ii libxpm4 4.3.0.dfsg.1-10 X pixmap library
ii libxt6 4.3.0.dfsg.1-10 X Toolkit Intrinsics
ii xaw3dg 1.5+E-8 Xaw3d widget set
ii xlibs 4.3.0.dfsg.1-10 X Keyboard Extension (XKB) configu
ii zlib1g 1:1.2.2-3 compression library - runtime
-- no debconf information
--- End Message ---
--- Begin Message ---
Hi Pedro!
On Mon, 14 Feb 2005, Pedro Zorzenon Neto wrote:
> Package: xfig
> Version: 1:3.2.5-alpha5-3
> Severity: minor
>
> Hi,
>
> In usr/share/doc/xfig/FORMAT3.2.gz says that default xfig resolution
> is 1200ppi, but if I use xfig and draw a box with coords (0,0) and
> (10cm, 10cm), I can see in its output file:
>
> 2 2 0 1 0 7 50 -1 -1 0.000 0 0 -1 0 0 5
> 0 0 4500 0 4500 4500 0 4500 0 0
>
> That is, box is in xfig points (0,0) (4500,4500). If it were 1200ppi,
> it should be (0,0) and (4724,4724). It seems that Xfig is using a
> resolution around 1140ppi instead of 1200.
>
> Can you check that?
As mentioned by Arnaud Giersch <[email protected]> some time ago,
this is a design decision of the 3.2 FIG format (see
/usr/share/doc/xfig/FORMAT3.2.gz):
Fig_resolution is the resolution of the figure in the file.
Xfig will always write the file with a resolution of 1200ppi so it
will scale the figure upon reading it in if its resolution is different
from 1200ppi. Pixels are assumed to be square.
Note about metric units: To preserve a regular grid on the canvas the
centimeter is defined to be 450 Fig units and not 472.4 (1200/2.54).
For drawings done in metric units, fig2dev magnifies the output when
exporting or printing to compensate for the difference (472.4/450).
Also, if you make a drawing in one unit scale and switch to the other
units in xfig, the drawing will be rescaled on the screen by xfig to
remain consistent.
This said, I close this bug report.
Tschoeeee
Roland
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