[udig-devel] Integrate Google maps with Udig

[Rober Castro]

Yes indeed, would be very nice to have the possibility of add Google,
yahoo.maps easily to our Udig maps 

and have it as background, although seems that at the moment as you told me
is not possible, lets see if we can have the new plugin soon :-).

By the way, seems that Jesse has defined a way that could be useful to our
purpose. 

 

Thanks you very much. 

  _____  

From: Eric Jarvies [mailto:ej at csl.com.mx] 
Sent: 02 April 2008 11:13
To: roberto.castro-ramon at eurobios.com; User-friendly Desktop Internet GIS
Subject: Re: [udig-devel] Integrate Google maps with Udig

 

no, unfortunately it is not yet possible.  this has been on my wish-list for
some time now, but i've not seen any other interest expressed about it on
this list(until you).  the main reason why i need it, is because google
maps(et, al) are off by as much as 5 meters in some places.  this means my
maps, like roads, end up in the middle of properties and houses on the
google maps, and vice versa.  and so, it would be nice to overlay my maps,
adjust them to the google(et, al) maps, and then generate google-specific
versions, and voila! problems solved.  another important aspect is when
using google maps to capture data input, is if you have user input, wherein
a user zooms in on a property and selects/placemarks it as theirs, and then
enters their name, tel#, etc., the resulting coordinates are incorrect for
that record when placed atop my maps, or imported into one of my maps, hence
that needs to be geo-corrected.  

 

and of course, there is the benefit of tracing.  the ability to place a
google, yahoo, ms, etc. map below one's layers, and use it for the purposes
of tracing atop it in a vector layer... that in itself is a wonderful
capability.

 

i have been speaking with programmers familiar with building eclipse
plugins, and so hopefully something will come of it sooner then later.
basically, the plugin allows the user to select google, yahoo, microsoft,
mapquest, openstreetmaps, etc., after which the respective map site loads as
the background layer.  the plugin takes the existing layer's coordinates,
and essentially loads the respective browser-based map view according to
those coordinates.  then, the layer-set essentially has to adopt the
coordinates and zoom levels of the respective browser-based maps for the
term of the edit, or as long as the user has that google background map
loaded.   of course, it would be nice if the plugin kept track of
adjustments per coordinate quadrant, so the user could load new/different
maps, and adjust them to the google map with a push of the button,
essentially making a copy of the user map, with the incorrect coordinates,
so it essentially matches the google maps, and should apply to shapefiles
and postgresql/postgis layers alike.

 

also working on an address book importer/exporter plugin.  this will allow
the user to import contacts from an os x or outlook address book(or an vcf
file), as well as export them to os x / outlook address book.  the user may
import to a new vector map, or to an existing user map.  if the address book
has contacts that have lat/long fields, then those will be auto-placed onto
the map as points.  for all the entries in the address book that do not have
lat/long coordinates, then those all default to the xmin/ymin of the layer's
existing coordinates.  of course, the user can then enter correct coords per
record as s/he obtains them, or as they are input by the user via a public
site.  also having the ability to set decorations for the records/points,
showing a person icon for personal contacts, and a building icon for
business contacts(or whatever).  this uses the column in the vcf table that
denotes the record type, providing that is possible within uDig.  if not,
then that will be to be addressed.  i have not found a way in udig to
decorate points, much less apply multiple decorations to one point map.

 

third plugin is a timeline.  to simply be able to slide the timeline back
into the past, or back into the present, and to view the records that
existed at any of those points in time, like how property was divided, or if
there was construction of a given property at a given time, etc.

 

eric

 

 

 

 

 

 

On Apr 2, 2008, at 3:33 AM, Rober Castro wrote:



Hello 

I'm working with Udig and now I have a problem, I would like to integrate
Google maps with Udig, using them like a background layer for my own maps. I
was wondering if it is possible? I would appreciate so much if you can give
some advice or give me any ideas to make a start.

Thanks in advance.

Roberto

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User-friendly Desktop Internet GIS (uDig)
http://udig.refractions.net
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