Hi Jonathan,
I can only partially answer your questions/remarks.
A few bugs with QGIS 1.7.0. Unfortunately there's no obvious way to
actually create an account or report bugs on your bug tracker so I'm
forced to post them here.
the infrastructure was just changed recently. Did you try on
http://hub.qgis.org/ - personally I don't know how the accounts are
handled. The old accounts from trac.osgeo.org were migrated.
1) I have a ~600MB raster in JP2000 format (*.jp2). QGIS doesn't seem
to be able to load this, at least not in a timely manner. It spent at
least 5 mins sitting there eating 100% CPU and using quite a bit of
RAM.
I also have a ~4GB ECW file which similar things happen with. Both
files are projected (OSGB - 27700) and I'm fairly sure they have
pyramids.
MapInfo, ArcGIS, MapModeller (all proprietary), and MapWindow (Open
Source) are all capable of displaying both images in fractions of a
second.
There has been a lot of mail recently about the problems with ecw.
Personally, I would really stay away from proprietary formats like ecw
and mrsid. You will never know when those companies changed their
policies and if they care about compatibility with OS GIS. I personally
use TIFF files (bigtiff files are more or less unlimited in size), and
you can choose between different compressions in the tiff, like jpeg,
deflate, zip, packbits, etc. These files usually work fine. I never had
any issues. Back 2-3 years I also experimented with ecw and always ran
into issues with software upgrades.
This doesn't mean that the bug should not be fixed, but it is a
recommendation about storing your data.
2) I load a shapefile that's projected in British National Grid into
QGIS. The built in QGIS scale shows "degrees" rather than "metres" as
the measurement unit despite showing "0" to "30,000" numerically (so
it is showing metres, it's just incorrectly saying "degrees". This is
to a new map that has no other layers added.
Did you set the projection of your QGIS project? It sounds like this is
set to WGS84/degrees. Try to set it to your british national grid and it
will probably work fine.
3) Why is there a "(c) QGIS 2011" in the bottom right of the map
viewer? 99% + of other programs use the Help->About page for that.
This is because you probably enabled the "Copyright plugin", which is
not enabled by default, I think. You can easily disable it in the
plugins manager. The goal of the copyright plugin is not showing the
QGIS copyright, but your own copyright (e.g. your company). You can
easily configure it to show your own copyright, or better disable it
alltogether. For configuration look into the Plugins toolbar and the
button with the copyright symbol.
Hope this helps,
Andreas
--
Andreas Neumann
Böschacherstrasse 10A
8624 Grüt (Gossau ZH)
Switzerland
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