Re: [OSM-talk] [OSM-dev] Printing the slippy map

2008-04-20 Thread Frederik Ramm
Hi,

> A quick interface request: Can we put PDF at the top of the list, as
> it's the most universally understood vector format, followed by SVG,

On a side note - the SVG rendered much faster in Inkscape than the PDF
in Acroread!

> We don't want people to download screen resolution maps,
> print them and say that on-line maps aren't as good as real paper ones
> just because they are first on the list.

The good thing about the bitmaps is that you can get them in much
higher resolutions than "screen".

Bye
Frederik

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Frederik Ramm  ##  eMail [EMAIL PROTECTED]  ##  N49°00'09" E008°23'33"


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Re: [OSM-talk] [OSM-dev] Printing the slippy map

2008-04-20 Thread Tom Hughes
In message <[EMAIL PROTECTED]>
  "Robert (Jamie) Munro" <[EMAIL PROTECTED]> wrote:

> Longer term, it would be great if the PDF version let you select a paper
> size and orientation and made the map whatever scale was needed to fit
> it. As someone else said, it would be good if /this/ full page map had
> attribution etc. on it, but I wouldn't put the attribution on other
> formats of map - they are for building on and inclduing into larger
> documents, and the copyright needs to be added as appropriate to those
> documents.

It's not very easy to work out unfortunately, and in particular
there are issues with the fact that mapnik assumes 96 DPI while
the postscript and PDF output should really be 72 DPI so at the
moment mapnik probably is producing quite the scale you think it
is when you render to those types.

> A quick interface request: Can we put PDF at the top of the list, as
> it's the most universally understood vector format, followed by SVG,
> then Postscript, then leave the raster formats (PNG and especially JPEG)
> at the bottom. We don't want people to download screen resolution maps,
> print them and say that on-line maps aren't as good as real paper ones
> just because they are first on the list.

I'm reluctant to do that at the moment because there are various
issues with the PDF output that make it non-optimal as a default
in many cases.

Specifically there is a rendering bug with the one way arrows in
evince (just reported) and the maps can be very slow to render
especially (once I've turned on clipping which I plan to do) if
you're using evince with cairo 1.4 which most linux distros will
be at the moment.

Also, until mapnik support vector symbols, the PDF maps don't
actually scale that well as the symbols start to look very blocky
as you zoom in.

> Will the postscript output work as an EPS? If so, could we call it EPS
> as that's a filetype graphic designer types will recognise.

I don't know if it will function as EPS as is - cairo 1.6 has
explicit support for EPS but the python bindings don't seem to
support it yet so I can't easily offer it.

Tom

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http://www.compton.nu/

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Re: [OSM-talk] [OSM-dev] Printing the slippy map

2008-04-20 Thread Robert (Jamie) Munro
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Hash: SHA1

Andy Robinson wrote:
| Well, maybe you couldgive the new Export tab a try. Appeared the first
| time for me when I gust opened the OSM homepage. Its been a long time
| in the making but I'm really pleased to see it there. Thanks to all
| who have got this coded and working.

This is fantastic. It instantly shows to people the difference between
us and the other on-line maps. The PDF mode is especially great as it
means anyone can see and print a vector map instantly. I think it
deserves a proper press release from the foundation.

Longer term, it would be great if the PDF version let you select a paper
size and orientation and made the map whatever scale was needed to fit
it. As someone else said, it would be good if /this/ full page map had
attribution etc. on it, but I wouldn't put the attribution on other
formats of map - they are for building on and inclduing into larger
documents, and the copyright needs to be added as appropriate to those
documents.

It's probably possible to add the copyright after the PDF has been made
using ghostscript or something similar, if it's not easy to get Mapnik
to add it.

A quick interface request: Can we put PDF at the top of the list, as
it's the most universally understood vector format, followed by SVG,
then Postscript, then leave the raster formats (PNG and especially JPEG)
at the bottom. We don't want people to download screen resolution maps,
print them and say that on-line maps aren't as good as real paper ones
just because they are first on the list.

Will the postscript output work as an EPS? If so, could we call it EPS
as that's a filetype graphic designer types will recognise.

But again: Nice work!!!

Robert (Jamie) Munro

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Re: [OSM-talk] [OSM-dev] Printing the slippy map

2008-04-20 Thread Andy Robinson
Well, maybe you couldgive the new Export tab a try. Appeared the first
time for me when I gust opened the OSM homepage. Its been a long time
in the making but I'm really pleased to see it there. Thanks to all
who have got this coded and working.

Since the original post was about copyright, what is the status of
getting copyright/OSM image or something on the exported images?

Cheers

Andy

On 20/04/2008, Frederik Ramm <[EMAIL PROTECTED]> wrote:
> Hi,
>
>
>  > When I print a map from www.openstreetmap.org in Firefox on Linux in
>  > portrait form, I get one page with a map, and a second (wasted) page
>  > with the copyright notice.
>
>
> I have completely given up trying to print all kinds of slippy maps,
>  it never works out the way I want it. I use something like
>  bigmap/MapOf to make a large bitmap and print that.
>
>  Bye
>  Frederik
>
>
>  --
>  Frederik Ramm  ##  eMail [EMAIL PROTECTED]  ##  N49°00'09" E008°23'33"
>
>
>
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-- 
Andy Robinson

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