How to check if a given marker is inside a area
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lucaswxp
Feb 17, 2011, 4:44:46 AM2/17/11
to Google Maps JavaScript API v3
Hello everybody o/
I know that this is more a math question than gmap, but I suppose that
someone already pass through this =)
In my map, I have circle (actually I have several of them, but this
not change the question), like this:
http://code.google.com/intl/pt-BR/apis/maps/articles/mvcfun/step6.html
How do I know if a marker (with latitude X and longitude Y) is inside
this circle?
Sorry for the bad english, I'm brazillian =p
I know that this is more a math question than gmap, but I suppose that
someone already pass through this =)
In my map, I have circle (actually I have several of them, but this
not change the question), like this:
http://code.google.com/intl/pt-BR/apis/maps/articles/mvcfun/step6.html
How do I know if a marker (with latitude X and longitude Y) is inside
this circle?
Sorry for the bad english, I'm brazillian =p
Martin Matysiak
Feb 17, 2011, 5:26:02 AM2/17/11
to google-map...@googlegroups.com
Your circle object has the getRadius() method. Because of that I think the simplest way to check if a location is in- or outside the circle would be calculating the distance between location and the center of your circle (see geometry library) and compare the calculated distance to your circle radius.
Paulo Fernandes
Mar 2, 2011, 7:50:36 PM3/2/11
to google-map...@googlegroups.com, Martin Matysiak, luca...@gmail.com
I think that I solved this issue
If you zoom in the border of the circle and click, maybe you get the "INSIDE" message, I think that is a bug on circle radius size
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geoco...@gmail.com
Mar 2, 2011, 7:58:46 PM3/2/11
to Google Maps JavaScript API v3
On Mar 2, 4:50 pm, Paulo Fernandes <paulofernande...@gmail.com> wrote:
> I think that I solved this issue
>
> http://www.pjtecnologia.com.br/maps/exemplos/check-lat-lng-is-inside-...
> I think that I solved this issue
>
>
> If you zoom in the border of the circle and click, maybe you get the
> "INSIDE" message, I think that is a bug on circle radius size
How about irregular polygons:
> If you zoom in the border of the circle and click, maybe you get the
> "INSIDE" message, I think that is a bug on circle radius size
http://www.geocodezip.com/geoxml3_test/v3_collection-map2e.html
(does point in polygon analysis with the point from the geocoded
address)
-- Larry
>
> Paulo Fernandeshttp://www.google.com/profiles/paulofernandesjrhttp://twitter.com/paulofernandesj
> +55 11 9797-5974
>
> On Thu, Feb 17, 2011 at 8:26 AM, Martin Matysiak
> <kaktus...@googlemail.com>wrote:
>
> On Thu, Feb 17, 2011 at 8:26 AM, Martin Matysiak
>
>
>
> > Your circle object has the getRadius() method. Because of that I think the
> > simplest way to check if a location is in- or outside the circle would be
> > calculating the distance between location and the center of your circle
> > (see geometry library<http://code.google.com/intl/en/apis/maps/documentation/javascript/geo...>)
>
>
> > Your circle object has the getRadius() method. Because of that I think the
> > simplest way to check if a location is in- or outside the circle would be
> > calculating the distance between location and the center of your circle
> > and compare the calculated distance to your circle radius.
>
> > Best regards,
> > Martin Matysiak
> > homepage <https://martin-matysiak.de/> | blog<http://blog.martin-matysiak.de/>
>
> > Best regards,
> > Martin Matysiak
>
> > --
> > You received this message because you are subscribed to the Google Groups
> > "Google Maps JavaScript API v3" group.
> > To post to this group, send email to
> > google-map...@googlegroups.com.
> > To unsubscribe from this group, send email to
> > google-maps-js-a...@googlegroups.com.
> > For more options, visit this group at
> >http://groups.google.com/group/google-maps-js-api-v3?hl=en.- Hide quoted text -
> > --
> > You received this message because you are subscribed to the Google Groups
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> > For more options, visit this group at
>
> - Show quoted text -
Paulo Fernandes
Mar 2, 2011, 8:04:58 PM3/2/11
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geoco...@gmail.com
Mar 2, 2011, 8:11:48 PM3/2/11
to Google Maps JavaScript API v3
Your example does circles only. The link I provided does point in
polygon analysis for an arbitrary shaped polygon (in that case the
trash pick up regions). Although the example is no where near as
simple as yours.
-- Larry
>
> Paulo Fernandeshttp://www.google.com/profiles/paulofernandesjrhttp://twitter.com/paulofernandesj
> +55 11 9797-5974
>
> On Wed, Mar 2, 2011 at 9:58 PM, geocode...@gmail.com
> <geocode...@gmail.com>wrote:
polygon analysis for an arbitrary shaped polygon (in that case the
trash pick up regions). Although the example is no where near as
simple as yours.
-- Larry
>
> Paulo Fernandeshttp://www.google.com/profiles/paulofernandesjrhttp://twitter.com/paulofernandesj
> +55 11 9797-5974
>
> On Wed, Mar 2, 2011 at 9:58 PM, geocode...@gmail.com
> <geocode...@gmail.com>wrote:
>
>
>
> > How about irregular polygons:
> >http://www.geocodezip.com/geoxml3_test/v3_collection-map2e.html
> > (does point in polygon analysis with the point from the geocoded
> > address)- Hide quoted text -
>
>
> > How about irregular polygons:
> >http://www.geocodezip.com/geoxml3_test/v3_collection-map2e.html
> > (does point in polygon analysis with the point from the geocoded
Paulo Fernandes
Mar 3, 2011, 8:53:09 AM3/3/11
to google-map...@googlegroups.com, geoco...@gmail.com
Ok
geoco...@gmail.com
Mar 3, 2011, 9:21:12 AM3/3/11
to Google Maps JavaScript API v3
On Mar 3, 5:53 am, Paulo Fernandes <paulofernande...@gmail.com> wrote:
> Ok
>
> But this is a bug on API, right?
I don't know. I didn't investigate it at all. Detecting whether or
> Ok
>
> But this is a bug on API, right?
not a geographic point is within a circle is a special case of a
general point-in-polygon algorithm.
-- Larry
>
> Paulo Fernandeshttp://www.google.com/profiles/paulofernandesjrhttp://twitter.com/paulofernandesj
> +55 11 9797-5974
>
> On Wed, Mar 2, 2011 at 10:11 PM, geocode...@gmail.com
> <geocode...@gmail.com>wrote:
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