[OSGeo Africa] [!! SPAM] Re: How to capture cadastral data using QGIS
Zoltan Szecsei
zoltans at geograph.co.za
Thu Aug 8 07:53:51 PDT 2013
Hi Johan,
How many erven do you need to capture?
Is it worth rewriting the stuff I did in the 80's?
(I can't find my old HP86, so re-write would be necessary :-) )
Regards,
Zoltan
On 2013/08/08 16:31, Peter Newmarch wrote:
> Gavin
>
> I stand corrected on this, but I believe that the SGO has in house
> tools and of course the surveyors have survey programs that capture
> it. One must be careful as the tricky part is connecting one parcel to
> the next - as your area of capture gets larger and different Land
> Surveyors have done different surveys you will see they don't fit
> together (because one is working on coordinates).
>
> Coordinates are pretty meaningless to a land surveyor aside to give a
> general location, they have little weight.
>
> You will find as well that the bearing and distance need not tally up
> on adjoining surveys. I rarely adopt previous bearing and distances
> and prefer to use my own measurements.
>
> Regards
>
> Peter
>
> Peter Newmarch
> Professional Land Surveyor
> 4Y GeoInformatics Pty Ltd
> Tel : +27 31 5642856
> Fax : +27 31 5643074
> Mobile : +27 82 5705859
> eMail :newmarch at land-surveyors.com
> On 2013/08/08 03:14 PM, Johan van Rensburg wrote:
>> Hi Gavin,
>>
>> I find it rather strange that nobody in South Africa has developed such a system that is compatible with your Survey System as the Government has decided to implement open sourced GIS?
>>
>> Best Regards
>>
>> Johan van Rensburg
>> GIS Consultant
>>
>> Geo Business Solutions lwww.geosol.com.na l Tel: (061) 226929 l Fax: (061) 229623
>>
>> DISCLAIMER: This e-mail must not be copied, disclosed or used by any person other than the addressee(s) named above. Geo Business Solutions does not endorse or accept responsibility for any personal views expressed in this e-mail.
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>>
>>
>> -----Original Message-----
>> From:africa-bounces at lists.osgeo.org [mailto:africa-bounces at lists.osgeo.org] On Behalf Of Gavin Fleming
>> Sent: Thursday, August 08, 2013 10:46 AM
>> To:africa at lists.osgeo.org
>> Subject: [!! SPAM] Re: [OSGeo Africa] How to capture cadastral data using QGIS
>>
>> Hi Johan
>>
>> The Azimuth and Distance plugin that Uazu mentions does the basics but is fairly rudimentary.
>>
>> We've developed a QGIS plugin that does coordinate as well as bearing and distance capture and editing. It maintains the 'beacons' thus generated as points in PostGIS. It then allows you to graphically define a parcel based on an ordered set of beacons and generates the parcels on the fly. The result is a beacon layer and a dynamic 'parcels' layer.
>>
>> It is working on 1.8 in a client environment (Ogun State, Nigeria) and would need funding to update to the QGIS 2.0 API and to make it more generic for wider release.
>>
>> There is also a UN FOSS project for cadastral management, SOLA [1], that is being trialled in various locations
>>
>> Gavin
>>
>> [1]http://www.flossola.org/about/faq
>>
>> On 08/08/2013 11:16, Uazukuani wrote:
>>> Hi Johan
>>>
>>> The AZIMUTH and DISTANCE Plugin seems to be what you are looking for.
>>> Note: I haven't used it.
>>> There is unfortunately not much documentation on the internet or the
>>> plugin homepage.
>>> http://sourceforge.net/projects/qgsazimuth/
>>>
>>> The plugin interface seems simple enough I am sure you will figure it out.
>>>
>>>
>>> Regards,
>>> Uazu
>>>
>>>
>>> On Thu, Aug 8, 2013 at 9:43 AM, Johan van Rensburg
>>> <johan at geosol.com.na <mailto:johan at geosol.com.na>> wrote:
>>>
>>> Dear All,
>>>
>>> Can someone please help by sending me some documentation on how to
>>> capture cadastre erf data using LO coordinates and distance and
>>> direction
>>>
>>> Best Regards
>>>
>>> **
>>>
>>> *Johan van Rensburg*
>>>
>>> GIS Consultant
>>>
>>>
>>> ----------------------------------------------------------------------
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>>> <http://www.geosol.com.na/> l Tel: (061) 226929 l Fax: (061)
>>> 229623
>>>
>>>
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>> regards
>>
>> Gavin
>>
>> Gavin Fleming
>> http://afrispatial.co.za
>> t: 0218620670
>> c: 0845965680
>> f: 0866164820
>>
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===========================================
Zoltan Szecsei PrGISc [PGP0031]
Geograph (Pty) Ltd.
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