Re: [Rails-devel] 18EU: Background Map submission (revised version)

[Erik V. <eri...@xs...>]

I have partly implemented displaying the 18EU SVG background map, with mixed
success.
See http://voshw.home.xs4all.nl/18EUmap.jpg for a screenshot (which is not
very sharp, the original display is a lot better). 
To me, it looks fine. (I haven't done zooming yet, and the tile lay costs
and other overlays have not yet been suppressed.)

However, there are some issues:
- I'm regularly seeing the Hotspot JVM crash with an
EXCEPTION_ACCESS_VIOLATION message (I'm running Rails from Eclipse). I have
quite a lot of different error reports, which don't help me one bit. One
possible cause I found on the web refers to garbage collection.  I tried to
increase memory, and indeed that seems to reduce the problem (I'm now using
-Xmx1024m), but the crashes have not completely disappeared.
- Map window initialization has markedly slowed down, and map actions such
as laying tiles have become pretty sluggish.  Displaying tooltips has also
slowed down.

I would like to give other people a chance to play with this new stuff, but
I'm not sure if I should commit my changes to the SVN trunk.  Perhaps we
should create a  branch for this experimental feature (but I have no clue
how to do that - I've never done branching  before).
On the other hand, I have already added a configuration property to
completely suppress the use of SVG maps, so probably no harm would be done
by putting this code into the trunk anyway.

Suggestions?

Erik.

> -----Oorspronkelijk bericht-----
> Van: Erik Vos [mailto:eri...@xs...]
> Verzonden: maandag 23 mei 2011 9:31
> Aan: 'Development list for Rails: an 18xx game'
> Onderwerp: Re: [Rails-devel] 18EU: Background Map submission (revised
> version)
> 
> Thanks Bill, this looks pretty good.
> 
> There is no hurry with working this out; from my side it has always been a
> long shot.
> Feel free to experiment, otherwise I will do so over time.
> 
> I suppose we'll need an extra <Image> tag in Map.xml, with attributes
> filename, x, y, scale.
> In presence of a map image, displaying all tiles with non-positive numbers
> (i.e., preprinted tiles) should be suppressed (except when testing
> alignment).
> 
> Erik.
> 
> > -----Oorspronkelijk bericht-----
> > Van: Bill Rosgen [mailto:ro...@gm...]
> > Verzonden: maandag 23 mei 2011 4:23
> > Aan: Development list for Rails: an 18xx game
> > Onderwerp: Re: [Rails-devel] 18EU: Background Map submission (revised
> > version)
> >
> > Here's another attempt, as I have a copy of Adobe Illustrator, so can
> convert
> > the PDF to SVG -- in theory without losing anything.  Let me know if
> > this
> file is
> > readable on other systems (I've tested it in Safari and it seems to
> > work
> fine).
> >
> > I've also removed some of the 'unnecessary' elements, such as the
> > income track, the hex numbers (since Rails will also display them?).
> > It's easy
> for me
> > to leave things like hex-numbers on the map, if desired -- creating
> > this
> file
> > took literally about 5 minutes, so I don't mind making other versions.
> >
> > Note that this file is *not* my artwork: I've just taken John
> > Tamplin's
> PDF and
> > converted it to SVG.  He probably doesn't mind, since he's
> > distributing
> the
> > PDF anyway, but this might be something to think about regarding other
> > games.  I can also re-draw some of the other maps that we don't have
> > PDFs for, but they won't look exactly like the printed versions do,
> > and this
> will take
> > more time.
> >
> > I can take a look at displaying this in Rails, but I'm likely to be
> > busy
> for about
> > the next week, so I can't make any promises regarding timeliness.
> >
> > Bill
> 
> 
> 
>
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