[Xastir-dev] More Map Questions/Suggestions !

[Curt, WE7U]

On Tue, 16 Mar 2004, James A Vincent wrote:

> 1.  It would be a really useful if the lat/long of the cursor
> position could be "copied" (ie same as middle mouse click) through
> a right mouse click.
> This would allow maps to be downloaded with third -party
> applications like the really useful geo-map
> <http://geo.rkkda.com/>

Give me more details about what you are after.  I'm not clear on
exactly what operations you want yet.  Are you talking about
clicking on a point, putting that point's coordinates into the
"copy" buffer, then being able to use the Unix "paste" function to
paste that into another app?


> 2.Is there a way of "fixing" the map zoom level when using pixmaps
> such as jpgs.  Here in the UK there is little digtal mapping
> available and most of it is pixmap based. Zooming provides no
> extra detail. Ideally a right click for a pre-defined (or
> adaptable) fixed zoom level could be provded so that maps are
> displayed at their optimum size. Perhaps the size function of
> ImageMagick would help ?

Two ideas:  You can set up min/max zoom levels for any particular
map, so that map won't appear except where it looks good.

You can enable "MAP_SCALE_CHECK" in maps.c, which is something that
Chris Bell wrote.  It attempts to only show raster images at scales
where they look good.


> 3.Could sombody help with the shapefile map dbfawk for esri maps
> of Europe. I have recently discovered them and they do provide
> maps of the UK which include labels for Cities and Towns but I
> cannot fathom out how to get the labels displayed ! (I have read
> the readme but I don't understand!)

I think you already received or are receiving help on that one.


> 4. Could we choose whether we use Imperial or SI on a per unit
> basis ? I think in terms of Celcius For temperatures, Knots for
> wind speed, Miles (statute) for road distances but millimetres for
> rainfall.  It probably is because I'm English - we buy petrol in
> litres but work out fuel consumption in miles per Imperial (not
> US) gallons !

That's more difficult, as it involves changing a bunch of things in
the GUI to support it, creating a bunch more togglebuttons, and
saving/restoring their state in the config file.  I think the amount
of work to do it outweighs the slight benefits that we could derive
from it.

So the U.S. just won't go metric, and you guys are somewhere in the
middle?

--
Curt, WE7U			    archer at eskimo dot com
Arlington, WA, USA		http://www.eskimo.com/~archer
"Lotto:    A tax on people who are bad at math." -- unknown
"Windows:  Microsoft's tax on computer illiterates." -- WE7U
"The world DOES revolve around me:  I picked the coordinate system!"