[OpenLayers-Dev] new editing/digitzing functionnalities

[Pierre GIRAUD]

I first meant to existing geometries vertices, but we can also imagine
snapping to grids.
This is typically the reason why I wanted this discussed.

Regards.

On 7/31/07, Paul Spencer <pspencer at dmsolutions.ca> wrote:
> Pierre,
>
> this would be excellent to have in the core vector tools I think.  A
> question on vertex snapping.  Do you mean snapping to other
> geometries or snapping to a grid of a certain resolution?
>
> Cheers
>
> Paul
>
> On 31-Jul-07, at 3:52 AM, Pierre GIRAUD wrote:
>
> > Dear OpenLayers developers,
> >
> > For one of the projects we are currently working on, we need to add
> > some functionnalities to OpenLayers.
> > Before we start, I would like to expose to you those different
> > elements. We think that they could be part of the future of OpenLayers
> > and integrated as is (or with little rewrite) in a forthcoming
> > release.
> >
> > The aim of this mail is to start a discussion on this. We hope that
> > with such an approach, we'll be able to develop the needed
> > functionnalities with the agreement of the developpers community.
> > We want to discuss with you all about use cases, design preferences,
> > and especially if it is has a chance to be integrated in the trunk or
> > if it is more like application level elements.
> >
> > Here are listed the functionnalities, note that they mainly concern
> > editing tools :
> >
> >  - snapping: the user can draw or modify a vector feature geometry
> > with snapping enabled.
> > We first need vertice snapping only, but we can also think about
> > segment snapping.
> > Found this definition : http://www.geo.ed.ac.uk/agidexe/term?846
> >
> >  - drag/add/remove vertice
> >
> >  - create island/donut polygons (polygon hole cutter)
> >
> > If, in your opinion, those functionnalities are to be accepted in the
> > trunk, I'll give more details on how we imagine to implement them.
> > Side note : some of the previously listed tools were already added by
> > Bertil and I in the first vector branch (late 2006).
> >
> > Tim, you just created a wiki page to list ideas for the future of
> > OpenLayers. Do the current considerations have to be added there ?
> >
> > Regards
> >
> > Pierre
> > _______________________________________________
> > Dev mailing list
> > Dev at openlayers.org
> > http://openlayers.org/mailman/listinfo/dev
>
> +-----------------------------------------------------------------+
> |Paul Spencer                          pspencer at dmsolutions.ca    |
> +-----------------------------------------------------------------+
> |Chief Technology Officer                                         |
> |DM Solutions Group Inc                http://www.dmsolutions.ca/ |
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