[Community] PrimaGIS 0.6 new features: more wishes

[Ludwig Max Brinckmann]

Something positive for once: apart from the bit of teething trouble
and some PCL issues that I have reported, I have not run into any
further trouble. Zoom_in limit works, as does the  max extent feature
and the static view. As I am converting my scripts, I am moving on to
other areas, such as legend urls etc...
But overall I think this is nicely moving into release territory. Great.

I will keep you posted
Ludwig

On 8/8/06, Ludwig Max Brinckmann <ludwigbrinckmann at gmail.com> wrote:
> I will try to give it a test and report back later today.
>
> On 8/8/06, Kai Hänninen <kai.hanninen at mbconcert.fi> wrote:
> > Hi everyone
> >
> > [...]
> >
> > >
> > > I agree that a maximum extent would be much more useful and that it
> > > would also make the zoom_out limit redundant. I'll implement a maximum
> > > extent and remove the zoom_out limit.
> >
> >
> > I've implemented the maximum extent feature in r781
> >
> >    http://trac.gispython.org/projects/zope/changeset/781
> >
> > that also removes the now redundant zoom out limit.
> >
> > In addition I've replaced the StringField/StringWidget combinations that
> > were used to store the extents with a custom
> > BoundingBoxField/BoundingBoxWidget implementation. This should make it
> > easier to set and get the bbox values from both code and the UI.
> >
> > The BoundingBoxField stores the bounds as tuples internally, but the
> > accessor method returns cartography.spatial.geometry.BoundingBox instances.
> >
> > The mutator method (setter) for BoundingBoxField allows the bounds to be
> > set in a variety of formats:
> >    - BoundingBox instance
> >    - 'minx,miny,maxx,maxy' string
> >    - 'minx miny maxx maxy' string
> >    - (minx, miny, maxx, maxy) tuple/list
> >    - record object with minx, miny, maxx and maxy attributes
> >
> > For example (assuming 'obj' has a BoundingBoxField called 'bbox')
> >
> >   >>> from cartography.spatial.geometry import BoundingBox
> >   >>> from cartography.spatial.interfaces import IBoundingBox
> >   >>> bbox = obj.getField('bbox')
> >
> >   >>> bbox.set(obj, BoundingBox(-10, -10, 10, 10))
> >   >>> IBoundingBox.providedBy(bbox.get(obj))
> >   True
> >   >>> bbox.get(obj).totuple()
> >   (-10, -10, 10, 10)
> >
> >   >>> bbox.set(obj, '-20,-20,20,20')
> >   >>> IBoundingBox.providedBy(bbox.get(obj))
> >   True
> >   >>> bbox.get(obj).totuple()
> >   (-20, -20, 20, 20)
> >
> >   >>> bbox.set(obj, '-30 -30 30 30')
> >   >>> IBoundingBox.providedBy(bbox.get(obj))
> >   True
> >   >>> bbox.totuple()
> >   (-30, -30, 30, 30)
> >
> >   >>> bbox.set(obj, (-40,-40,40,40))
> >   >>> IBoundingBox.providedBy(bbox.get(obj))
> >   True
> >   >>> bbox.get(obj).totuple()
> >   (-40, -40, 40, 40)
> >
> >   >>> class dummyrecord:
> >   ...   minx=-50; miny=-50; maxx=50; maxy=50
> >   ...
> >   >>> bbox.set(obj, dummyrecord())
> >   >>> IBoundingBox.providedBy(bbox.get(obj))
> >   True
> >   >>> bbox.get(obj).totuple()
> >   (-50, -50, 50, 50)
> >
> >
> > The PrimaGISMap.getDefaultView() method was removed as the dynamically
> > generated (by Archetypes) method getDefaultExtent() returns BoundingBox
> > instances directly.
> >
> > I still need to work a bit on i18n but otherwise it should be ready for
> > testing.
> >
> > cheers,
> > Kai
> > --
> > Kai Hänninen                  +358-50-558-7935
> > Software engineer             www.mbconcert.fi
> > MB Concert Ky                 kai.hanninen at mbconcert.fi
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> >
>