[OSGeo Africa] converting shapefile to get Google extent co-ordinates

[Solly Vuso]

Hi

Can someone assist me I have a provincial shapefile that I want to use it
for pmapper and geomoose bt am struggling to get the exact extent for my
province .

Please assist me to get the right google projections

Am in Eastern Cape , South Africa and I need the provincial boundary extent
in Google projections




Thank you
On 10 Oct 2013 5:41 PM, "Jean Paul Ngalams" <jpngalams at gmail.com> wrote:

dear Jeffery, try to enable the fly reprojection!


On Thu, Oct 10, 2013 at 2:29 PM, Chris Berens <chris at mapland.co.za> wrote:

> In your pts XY table that you included in your mail you have minuses in
> front of your eastings (these should probably refer to southings...check
> all).  Also, your X value of pt1 is the same as the Y value...of pt1
>
>
>
>
> On 10 October 2013 15:22, Jeffery Hlongwane <jeffhlongs at gmail.com> wrote:
>
>> Hi Chris
>>
>> I did try on the fly reprojection but with no expected outcome.
>>
>> With thanks
>>
>> Jeffery Hlongwane
>>
>> On 10/10/13, Chris Berens <chris at mapland.co.za> wrote:
>> > Dude! Have you tried Project properties>Settings>CRS>Enable on the fly
>> > reprojection?
>> >
>> >
>> >
>> >
>> > On 10 October 2013 13:46, Jeffery Hlongwane <jeffhlongs at gmail.com>
>> wrote:
>> >
>> >> Hi
>> >>
>> >> I am trying to align google image (georeferenced) with the farm
>> >> boundaries layer on QGIS. However, my challenge is only one layer
>> >> appears on map canvas and can only see the other via zoom to extent
>> >> option which automatically removes previously displayed layer from map
>> >> canvas. Can you please assist me? For now I can provide the following
>> >> further details.
>> >>
>> >> >>>The software I am using on my machine windows 7 machine is QGIS 1.8
>> >> Lisboa.  Georeferencing was based on the following coordinates control
>> >> points from Google Map.
>> >>
>> >> Points  X                         Y
>> >> p1      ­ - 25°40'40.58"S        25°40'40.58"S
>> >> p2       -28°23'58.19"E  25°40'41.81"S
>> >> p3       -28°23'32.75"E  25°40'57.56"S
>> >>
>> >> >>>When comes to transformation settings I used linear type, resampling
>> >> method was nearest neighbour and lastly the target srs was EPSG 4326.
>> >>
>> >> -Google georeferenced image's Spatial Layer extent :
>> >> 28.3874623288009538,25.6655111594936081  :
>> >> 28.4012727306202954,25.6753215312726546
>> >> Google image spatial reference system : +proj=longlat +datum=WGS84
>> >> +no_defs
>> >> Farm boundaries layer extents:
>> >> On QGIS  : Spatial reference system units : xMin,yMin 26.6218,-27.0627
>> >> : xMax,yMax 29.8673,-25.1096   Spatial Reference System: +proj=longlat
>> >> +ellps=WGS84 +towgs84=0,0,0,0,0,0,0 +no_defs
>> >> Original projection details :
>> >>
>> >>
>> GEOGCS["GCS_Hartebeesthoek_1994",DATUM["D_Hartebeesthoek_1994",SPHEROID["WGS_1984",6378137.0,298.257223563]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]]
>> >> >>> I also used checked the box for on the fly option and used WGS84.
>> >> >>> I've
>> >> trying for several times and now feel I can give a shout for help.
>> Thank
>> >> you in advance.
>> >>
>> >>
>> >> Yours Sincerely
>> >>
>> >> Jeffery Hlongwane
>> >> _______________________________________________
>> >> Africa mailing list
>> >> Africa at lists.osgeo.org
>> >> http://lists.osgeo.org/mailman/listinfo/africa
>> >>
>> >>
>> >
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>>
>
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-- 
Jean Paul NGALAMULUME TSH.
Contact:+243 9 97 53 47 59
               ngalamjp at yahoo.fr
               Skype:jp.ngalams


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