From gugusithole at gmail.com  Tue Aug  2 12:45:59 2022
From: gugusithole at gmail.com (Gugu Sithole)
Date: Tue, 2 Aug 2022 21:45:59 +0200
Subject: [OSGeo Africa] Please add address to your mailing list
Message-ID: <CAJBJ=5Sq0QoS5PFPc_Of1Rvayc9qgvN1Grb+ZOWrmhrX96ACkg@mail.gmail.com>

Good Day
Please add the following  address in the mailing list
gis at ziphelele.co.za
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From vicky at georepublic.de  Tue Aug  2 19:44:50 2022
From: vicky at georepublic.de (Vicky Vergara)
Date: Tue, 2 Aug 2022 21:44:50 -0500
Subject: [OSGeo Africa] AGM local chapters report
Message-ID: <CAK_FzuXd+3M4kZP6HCMqcMKvumrNjxpOHmHUB15=FU5ov46zYw@mail.gmail.com>

Hello all.
I was wondering if you had activities during the last year that could be
mentioned in the Annual General Meeting 2022.

Initially announced on discuss mailing list [1] Instructions are on slides
2 to 4 of the presentation [2]

[1] https://lists.osgeo.org/pipermail/discuss/2022-July/039628.html

[2] https://docs.google.com/presentation/d/1Mis580FlD29HjaymfL9OC72X9IqcM4uvnqVH57jQLqI/edit#slide=id.g13d29ca6724_0_0

If you need editor access to the presentation, let me know by requesting
the editing rights when you get to the presentation please.

Regards
Vicky
-- 

Georepublic UG (haftungsbeschr?nkt)
Salzmannstra?e 44,
81739 M?nchen, Germany

Vicky Vergara
Operations Research

eMail: vicky at georepublic.de
Web: https://georepublic.info

Tel: +49 (089) 4161 7698-1
Fax: +49 (089) 4161 7698-9

Commercial register: Amtsgericht M?nchen, HRB 181428
CEO: Daniel Kastl
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From mmmalindi at gmail.com  Wed Aug 17 03:41:33 2022
From: mmmalindi at gmail.com (Madoda Man-D Malindi)
Date: Wed, 17 Aug 2022 12:41:33 +0200
Subject: [OSGeo Africa] Eastern Cape Farm Portion Shapefile
Message-ID: <CALBRPSFGTNzngRpScnagxCmieB31Y9kzGyo_nxpdHp366d2Jrg@mail.gmail.com>

Hello everyone

I am looking for data on Eastern Cape Farm Portions and Parent Farm
Portions can someone please help?

Regards,

Madoda Malindi
Geographic Information System and Remote Sensing
Call: 071 8417 229
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From nic at 1map.co.za  Wed Aug 17 03:45:04 2022
From: nic at 1map.co.za (Nic Klopper)
Date: Wed, 17 Aug 2022 12:45:04 +0200
Subject: [OSGeo Africa] Eastern Cape Farm Portion Shapefile
In-Reply-To: <CALBRPSFGTNzngRpScnagxCmieB31Y9kzGyo_nxpdHp366d2Jrg@mail.gmail.com>
References: <CALBRPSFGTNzngRpScnagxCmieB31Y9kzGyo_nxpdHp366d2Jrg@mail.gmail.com>
Message-ID: <CAHwEHm0+cMPPPx4Zti+4iTVpZqXRysiv03yM3Xkemn2=teYznA@mail.gmail.com>

Hi Madoda

Which farm and portions ?

Regards

Nic Klopper
Managing Director
[image: 1map logo]

1map Spatial Solutions (Pty) Ltd
26 Richter Avenue, Wellington
Western Cape, South Africa

t: +27 21 873 0546
m: +27 83 445 0211
w: www.1map.co.za
[image: skype:nic.klopper.88]
<https://join.skype.com/invite/IhF8fw8RWBzP> [image:
www.linkedin.com/in/nicklopperrsa/]
<https://www.linkedin.com/in/nic-klopper-b205444b> [image: facebook]
<https://www.facebook.com/1mapsa/>



On Wed, Aug 17, 2022 at 12:41 PM Madoda Man-D Malindi <mmmalindi at gmail.com>
wrote:

> Hello everyone
>
> I am looking for data on Eastern Cape Farm Portions and Parent Farm
> Portions can someone please help?
>
> Regards,
>
> Madoda Malindi
> Geographic Information System and Remote Sensing
> Call: 071 8417 229
> _______________________________________________
> Africa mailing list
> Africa at lists.osgeo.org
> You can UNSUBSCRIBE at https://lists.osgeo.org/mailman/listinfo/africa
>
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From mmmalindi at gmail.com  Wed Aug 17 04:14:10 2022
From: mmmalindi at gmail.com (Madoda Man-D Malindi)
Date: Wed, 17 Aug 2022 13:14:10 +0200
Subject: [OSGeo Africa] Eastern Cape Farm Portion Shapefile
In-Reply-To: <CAHwEHm0+cMPPPx4Zti+4iTVpZqXRysiv03yM3Xkemn2=teYznA@mail.gmail.com>
References: <CALBRPSFGTNzngRpScnagxCmieB31Y9kzGyo_nxpdHp366d2Jrg@mail.gmail.com>
 <CAHwEHm0+cMPPPx4Zti+4iTVpZqXRysiv03yM3Xkemn2=teYznA@mail.gmail.com>
Message-ID: <CALBRPSHNLcThM98YJau3ghSHBiY2hH8MjUDesZz-x9yL+DkRLw@mail.gmail.com>

Hi Nic

I am looking for all the farms in Indwe and dordrecht

Regards,

Madoda Malindi
Geographic Information System and Remote Sensing
Call: 071 8417 229


On Wed, Aug 17, 2022 at 12:45 PM Nic Klopper <nic at 1map.co.za> wrote:

> Hi Madoda
>
> Which farm and portions ?
>
> Regards
>
> Nic Klopper
> Managing Director
> [image: 1map logo]
>
> 1map Spatial Solutions (Pty) Ltd
> 26 Richter Avenue, Wellington
> Western Cape, South Africa
>
> t: +27 21 873 0546
> m: +27 83 445 0211
> w: www.1map.co.za
> [image: skype:nic.klopper.88] <https://join.skype.com/invite/IhF8fw8RWBzP>
>  [image: www.linkedin.com/in/nicklopperrsa/]
> <https://www.linkedin.com/in/nic-klopper-b205444b> [image: facebook]
> <https://www.facebook.com/1mapsa/>
>
>
>
> On Wed, Aug 17, 2022 at 12:41 PM Madoda Man-D Malindi <mmmalindi at gmail.com>
> wrote:
>
>> Hello everyone
>>
>> I am looking for data on Eastern Cape Farm Portions and Parent Farm
>> Portions can someone please help?
>>
>> Regards,
>>
>> Madoda Malindi
>> Geographic Information System and Remote Sensing
>> Call: 071 8417 229
>> _______________________________________________
>> Africa mailing list
>> Africa at lists.osgeo.org
>> You can UNSUBSCRIBE at https://lists.osgeo.org/mailman/listinfo/africa
>>
> _______________________________________________
> Africa mailing list
> Africa at lists.osgeo.org
> You can UNSUBSCRIBE at https://lists.osgeo.org/mailman/listinfo/africa
>
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From mfekapm at gmail.com  Wed Aug 17 04:36:02 2022
From: mfekapm at gmail.com (PHILANI MOFFAT MFEKA)
Date: Wed, 17 Aug 2022 13:36:02 +0200
Subject: [OSGeo Africa] Eastern Cape Farm Portion Shapefile
In-Reply-To: <CALBRPSFGTNzngRpScnagxCmieB31Y9kzGyo_nxpdHp366d2Jrg@mail.gmail.com>
References: <CALBRPSFGTNzngRpScnagxCmieB31Y9kzGyo_nxpdHp366d2Jrg@mail.gmail.com>
Message-ID: <CAD2tVazhsadaMmRA-gmyGTCNWFTJELe5Kur-R-84gaoB2xbWVg@mail.gmail.com>

Good day, you should contact the Surveyor General of Eastern Cape at the
following information
*The Surveyor-General: Eastern Cape* - *Chris Williams- Wynn*

*Street Address:*
1a Waverly Office Park
11 Phillip Frame Road
Chiselhurst
*EAST LONDON*
*Postal Address:*
Private Bag X9086
*EAST LONDON*
5200
*E-Mail:*
christopher.williamswynn at dalrrd.gov.za <chris.williamswynn at dalrrd.gov.za>

*Data Requests:*
sgdataec at dalrrd.gov.za

*Telephone:*(043) 783-1400

*Fax:* (043) 726 4279


On Wed, Aug 17, 2022 at 12:41 PM Madoda Man-D Malindi <mmmalindi at gmail.com>
wrote:

> Hello everyone
>
> I am looking for data on Eastern Cape Farm Portions and Parent Farm
> Portions can someone please help?
>
> Regards,
>
> Madoda Malindi
> Geographic Information System and Remote Sensing
> Call: 071 8417 229
> _______________________________________________
> Africa mailing list
> Africa at lists.osgeo.org
> You can UNSUBSCRIBE at https://lists.osgeo.org/mailman/listinfo/africa
>
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From nic at 1map.co.za  Wed Aug 17 04:37:53 2022
From: nic at 1map.co.za (Nic Klopper)
Date: Wed, 17 Aug 2022 13:37:53 +0200
Subject: [OSGeo Africa] Eastern Cape Farm Portion Shapefile
In-Reply-To: <CALBRPSHNLcThM98YJau3ghSHBiY2hH8MjUDesZz-x9yL+DkRLw@mail.gmail.com>
References: <CALBRPSFGTNzngRpScnagxCmieB31Y9kzGyo_nxpdHp366d2Jrg@mail.gmail.com>
 <CAHwEHm0+cMPPPx4Zti+4iTVpZqXRysiv03yM3Xkemn2=teYznA@mail.gmail.com>
 <CALBRPSHNLcThM98YJau3ghSHBiY2hH8MjUDesZz-x9yL+DkRLw@mail.gmail.com>
Message-ID: <CAHwEHm3W0QBtSX9UvRubhJtb9=Zvh=+X6Yj-6-KD7gUaZvf2Eg@mail.gmail.com>

I sent you the entire province

On Wed, 17 Aug 2022, 13:14 Madoda Man-D Malindi, <mmmalindi at gmail.com>
wrote:

> Hi Nic
>
> I am looking for all the farms in Indwe and dordrecht
>
> Regards,
>
> Madoda Malindi
> Geographic Information System and Remote Sensing
> Call: 071 8417 229
>
>
> On Wed, Aug 17, 2022 at 12:45 PM Nic Klopper <nic at 1map.co.za> wrote:
>
>> Hi Madoda
>>
>> Which farm and portions ?
>>
>> Regards
>>
>> Nic Klopper
>> Managing Director
>> [image: 1map logo]
>>
>> 1map Spatial Solutions (Pty) Ltd
>> 26 Richter Avenue, Wellington
>> Western Cape, South Africa
>>
>> t: +27 21 873 0546
>> m: +27 83 445 0211
>> w: www.1map.co.za
>> [image: skype:nic.klopper.88]
>> <https://join.skype.com/invite/IhF8fw8RWBzP> [image:
>> www.linkedin.com/in/nicklopperrsa/]
>> <https://www.linkedin.com/in/nic-klopper-b205444b> [image: facebook]
>> <https://www.facebook.com/1mapsa/>
>>
>>
>>
>> On Wed, Aug 17, 2022 at 12:41 PM Madoda Man-D Malindi <
>> mmmalindi at gmail.com> wrote:
>>
>>> Hello everyone
>>>
>>> I am looking for data on Eastern Cape Farm Portions and Parent Farm
>>> Portions can someone please help?
>>>
>>> Regards,
>>>
>>> Madoda Malindi
>>> Geographic Information System and Remote Sensing
>>> Call: 071 8417 229
>>> _______________________________________________
>>> Africa mailing list
>>> Africa at lists.osgeo.org
>>> You can UNSUBSCRIBE at https://lists.osgeo.org/mailman/listinfo/africa
>>>
>> _______________________________________________
>> Africa mailing list
>> Africa at lists.osgeo.org
>> You can UNSUBSCRIBE at https://lists.osgeo.org/mailman/listinfo/africa
>>
> _______________________________________________
> Africa mailing list
> Africa at lists.osgeo.org
> You can UNSUBSCRIBE at https://lists.osgeo.org/mailman/listinfo/africa
>
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From mluvos at gmail.com  Mon Aug 22 00:25:30 2022
From: mluvos at gmail.com (Luvo Qumba)
Date: Mon, 22 Aug 2022 09:25:30 +0200
Subject: [OSGeo Africa] Latest Airspaces Shapefile
Message-ID: <CAPhaPt5wJ8i=7GUxTXeujhYVSKsD4Z9v5JpEgX1ap7NGnW14hg@mail.gmail.com>

Hi Everyone,

Does anyone have the shapefile of South African Airspaces?


-- 
*Regards....*
*Luvo Qumba* *Pr L.(SA) , M.SAGI, M. SAGC*
*GIS | Land Surveyor | Sectional Title Practitioner | Licenced Drone Pilot*
w : m: 0835164958 | *f :* 086 272 4963 *w : **LinkedIn
<https://www.linkedin.com/in/luvo-qumba-pr-l-sa-7250b726/>*
a: Durban North, Kwazulu Natal, South Africa
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From willem at zulmap.co.za  Mon Aug 22 00:33:12 2022
From: willem at zulmap.co.za (Willem Richter)
Date: Mon, 22 Aug 2022 09:33:12 +0200
Subject: [OSGeo Africa] Latest Airspaces Shapefile
In-Reply-To: <CAPhaPt5wJ8i=7GUxTXeujhYVSKsD4Z9v5JpEgX1ap7NGnW14hg@mail.gmail.com>
References: <CAPhaPt5wJ8i=7GUxTXeujhYVSKsD4Z9v5JpEgX1ap7NGnW14hg@mail.gmail.com>
Message-ID: <006701d8b5f9$6f7d33b0$4e779b10$@zulmap.co.za>

Hi Luvo,  See link below for the airspace kmz file which you can view in Google Earth.  If needed you can always convert it to a shp file.

 

https://atns.com/products-services/aim/aeronautical-information-managementrsa-airspaces-in-3d/7423/

 

 

 

Description: willem outlook signature 2020

 

From: Africa [mailto:africa-bounces at lists.osgeo.org] On Behalf Of Luvo Qumba
Sent: Monday, 22 August 2022 09:26
To: Africa local chapter discussions
Subject: [OSGeo Africa] Latest Airspaces Shapefile

 

Hi Everyone,

 

Does anyone have the shapefile of South African Airspaces?

 

 

-- 


Regards....


Luvo Qumba Pr L.(SA) , M.SAGI, M. SAGC


GIS | Land Surveyor | Sectional Title Practitioner | Licenced Drone Pilot


w :

m: 0835164958 | f : 086 272 4963 w : LinkedIn <https://www.linkedin.com/in/luvo-qumba-pr-l-sa-7250b726/> 


a:

Durban North, Kwazulu Natal, South Africa

	
		

 

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From mluvos at gmail.com  Mon Aug 22 02:39:45 2022
From: mluvos at gmail.com (Luvo Qumba)
Date: Mon, 22 Aug 2022 11:39:45 +0200
Subject: [OSGeo Africa] Latest Airspaces Shapefile
In-Reply-To: <006701d8b5f9$6f7d33b0$4e779b10$@zulmap.co.za>
References: <CAPhaPt5wJ8i=7GUxTXeujhYVSKsD4Z9v5JpEgX1ap7NGnW14hg@mail.gmail.com>
 <006701d8b5f9$6f7d33b0$4e779b10$@zulmap.co.za>
Message-ID: <CAPhaPt7NrTTLqGj=0ng2Ts-xrfCAcbM4_Mfa+Msnzi17qxa=mg@mail.gmail.com>

Hi Willem,

Thanks for sharing. My challenge now has been the shp file conversion where
the 3D component is not preserved when opening in ArcScene within ArcGIS
Pro. I have been trying a work-aound with sketchup in the meantime.

On Mon, Aug 22, 2022 at 10:11 AM Willem Richter <willem at zulmap.co.za> wrote:

> Hi Luvo,  See link below for the airspace kmz file which you can view in
> Google Earth.  If needed you can always convert it to a shp file.
>
>
>
>
> https://atns.com/products-services/aim/aeronautical-information-managementrsa-airspaces-in-3d/7423/
>
>
>
>
>
>
>
> [image: Description: willem outlook signature 2020]
>
>
>
> *From:* Africa [mailto:africa-bounces at lists.osgeo.org] *On Behalf Of *Luvo
> Qumba
> *Sent:* Monday, 22 August 2022 09:26
> *To:* Africa local chapter discussions
> *Subject:* [OSGeo Africa] Latest Airspaces Shapefile
>
>
>
> Hi Everyone,
>
>
>
> Does anyone have the shapefile of South African Airspaces?
>
>
>
>
>
> --
>
> *Regards....*
>
> *Luvo Qumba* *Pr L.(SA) , M.SAGI, M. SAGC*
>
> *GIS | Land Surveyor | Sectional Title Practitioner | Licenced Drone Pilot*
>
> w :
>
> m: 0835164958 | *f :* 086 272 4963 *w : **LinkedIn
> <https://www.linkedin.com/in/luvo-qumba-pr-l-sa-7250b726/>*
>
> a:
>
> Durban North, Kwazulu Natal, South Africa
>
>
> _______________________________________________
> Africa mailing list
> Africa at lists.osgeo.org
> You can UNSUBSCRIBE at https://lists.osgeo.org/mailman/listinfo/africa
>


-- 
*Regards....*
*Luvo Qumba* *Pr L.(SA) , M.SAGI, M. SAGC*
*GIS | Land Surveyor | Sectional Title Practitioner | Licenced Drone Pilot*
w : m: 0835164958 | *f :* 086 272 4963 *w : **LinkedIn
<https://www.linkedin.com/in/luvo-qumba-pr-l-sa-7250b726/>*
a: Durban North, Kwazulu Natal, South Africa
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From mluvos at gmail.com  Wed Aug 24 00:25:10 2022
From: mluvos at gmail.com (Luvo Qumba)
Date: Wed, 24 Aug 2022 09:25:10 +0200
Subject: [OSGeo Africa] List of National Key Points Shapefile
Message-ID: <CAPhaPt43ZyaKHau=CR5vTm1eSS4AnUq_bThaEC_twL-FR484Nw@mail.gmail.com>

Hi Everyone,

Does anyone have a shapefile of National Key Points in South Africa? according
to the South African <https://en.wikipedia.org/wiki/South_Africa> National
Key Points Act, 1980
<https://en.wikipedia.org/wiki/National_Key_Points_Act,_1980>

I am also curious for research purposes to know who is the data custodian


-- 
*Regards....*
*Luvo Qumba* *Pr L.(SA) , M.SAGI, M. SAGC*
*GIS | Land Surveyor | Sectional Title Practitioner | Licenced Drone Pilot*
w : m: 0835164958 | *f :* 086 272 4963 *w : **LinkedIn
<https://www.linkedin.com/in/luvo-qumba-pr-l-sa-7250b726/>*
a: Durban North, Kwazulu Natal, South Africa
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From gerhardus.geldenhuis at gmail.com  Wed Aug 24 01:10:03 2022
From: gerhardus.geldenhuis at gmail.com (Gerhardus Geldenhuis)
Date: Wed, 24 Aug 2022 09:10:03 +0100
Subject: [OSGeo Africa] List of National Key Points Shapefile
In-Reply-To: <CAPhaPt43ZyaKHau=CR5vTm1eSS4AnUq_bThaEC_twL-FR484Nw@mail.gmail.com>
References: <CAPhaPt43ZyaKHau=CR5vTm1eSS4AnUq_bThaEC_twL-FR484Nw@mail.gmail.com>
Message-ID: <CAATm_0pmFoweb=388XueW_j+q2RUkCQMf00wz6XDhYgbh9Uf8w@mail.gmail.com>

Not sure that exists publicly, there is a fair amount of such data in
openstreetmap(powerstations, substations, petrol depots, etc)  but I don't
believe it is anywhere near complete and obviously non-official and not
necessarily tagged appropriately in OSM either.

Regards

On Wed, 24 Aug 2022 at 08:25, Luvo Qumba <mluvos at gmail.com> wrote:

> Hi Everyone,
>
> Does anyone have a shapefile of National Key Points in South Africa? according
> to the South African <https://en.wikipedia.org/wiki/South_Africa> National
> Key Points Act, 1980
> <https://en.wikipedia.org/wiki/National_Key_Points_Act,_1980>
>
> I am also curious for research purposes to know who is the data custodian
>
>
> --
> *Regards....*
> *Luvo Qumba* *Pr L.(SA) , M.SAGI, M. SAGC*
> *GIS | Land Surveyor | Sectional Title Practitioner | Licenced Drone Pilot*
> w : m: 0835164958 | *f :* 086 272 4963 *w : **LinkedIn
> <https://www.linkedin.com/in/luvo-qumba-pr-l-sa-7250b726/>*
> a: Durban North, Kwazulu Natal, South Africa
>
>
>
> _______________________________________________
> Africa mailing list
> Africa at lists.osgeo.org
> You can UNSUBSCRIBE at https://lists.osgeo.org/mailman/listinfo/africa
>


-- 
Gerhardus Geldenhuis
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From angie at planassociates.co.za  Wed Aug 24 01:16:02 2022
From: angie at planassociates.co.za (Angie Atkinson)
Date: Wed, 24 Aug 2022 08:16:02 +0000
Subject: [OSGeo Africa] List of National Key Points Shapefile
In-Reply-To: <CAATm_0pmFoweb=388XueW_j+q2RUkCQMf00wz6XDhYgbh9Uf8w@mail.gmail.com>
References: <CAPhaPt43ZyaKHau=CR5vTm1eSS4AnUq_bThaEC_twL-FR484Nw@mail.gmail.com>
 <CAATm_0pmFoweb=388XueW_j+q2RUkCQMf00wz6XDhYgbh9Uf8w@mail.gmail.com>
Message-ID: <CP7P275MB1398B1B9A7631EEC382DD7779D739@CP7P275MB1398.ZAFP275.PROD.OUTLOOK.COM>

Some of the key points as per below list do have co-ordinates on so one would be able to incorporate this into a GIS solution (one by one it seems).

https://en.wikipedia.org/wiki/List_of_National_Key_Points

Regards

From: Africa <africa-bounces at lists.osgeo.org> On Behalf Of Gerhardus Geldenhuis
Sent: Wednesday, 24 August 2022 10:10
To: Africa local chapter discussions <africa at lists.osgeo.org>
Subject: Re: [OSGeo Africa] List of National Key Points Shapefile

Not sure that exists publicly, there is a fair amount of such data in openstreetmap(powerstations, substations, petrol depots, etc)  but I don't believe it is anywhere near complete and obviously non-official and not necessarily tagged appropriately in OSM either.

Regards

On Wed, 24 Aug 2022 at 08:25, Luvo Qumba <mluvos at gmail.com<mailto:mluvos at gmail.com>> wrote:
Hi Everyone,

Does anyone have a shapefile of National Key Points in South Africa? according to the South African<https://en.wikipedia.org/wiki/South_Africa> National Key Points Act, 1980<https://en.wikipedia.org/wiki/National_Key_Points_Act,_1980>

I am also curious for research purposes to know who is the data custodian


--
Regards....
Luvo Qumba Pr L.(SA) , M.SAGI, M. SAGC
GIS | Land Surveyor | Sectional Title Practitioner | Licenced Drone Pilot
w :
m: 0835164958 | f : 086 272 4963 w : LinkedIn<https://www.linkedin.com/in/luvo-qumba-pr-l-sa-7250b726/>
a:
Durban North, Kwazulu Natal, South Africa

_______________________________________________
Africa mailing list
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--
Gerhardus Geldenhuis
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From sibonelo021 at gmail.com  Wed Aug 24 01:26:03 2022
From: sibonelo021 at gmail.com (Sibonelo Dlamini)
Date: Wed, 24 Aug 2022 10:26:03 +0200
Subject: [OSGeo Africa] List of National Key Points Shapefile
In-Reply-To: <CAPhaPt43ZyaKHau=CR5vTm1eSS4AnUq_bThaEC_twL-FR484Nw@mail.gmail.com>
References: <CAPhaPt43ZyaKHau=CR5vTm1eSS4AnUq_bThaEC_twL-FR484Nw@mail.gmail.com>
Message-ID: <CAD29-9D1TrxS3oZMyEjB9+4UD7MVD1JSa=f4shywEsj1_16D5w@mail.gmail.com>

Dear Mr Luvo

I doubt that you may get that shapefile from one place but possible from
different organizations.

Organizations such as Eskom, SA Defence Force, ACSA, Parliament etc.

Some of it maybe restricted information with public but can be access with
proper channels.

Kind Regards
Sibonelo

On Wed, Aug 24, 2022, 9:26 AM Luvo Qumba <mluvos at gmail.com> wrote:

> Hi Everyone,
>
> Does anyone have a shapefile of National Key Points in South Africa? according
> to the South African <https://en.wikipedia.org/wiki/South_Africa> National
> Key Points Act, 1980
> <https://en.wikipedia.org/wiki/National_Key_Points_Act,_1980>
>
> I am also curious for research purposes to know who is the data custodian
>
>
> --
> *Regards....*
> *Luvo Qumba* *Pr L.(SA) , M.SAGI, M. SAGC*
> *GIS | Land Surveyor | Sectional Title Practitioner | Licenced Drone Pilot*
> w : m: 0835164958 | *f :* 086 272 4963 *w : **LinkedIn
> <https://www.linkedin.com/in/luvo-qumba-pr-l-sa-7250b726/>*
> a: Durban North, Kwazulu Natal, South Africa
>
>
>
> _______________________________________________
> Africa mailing list
> Africa at lists.osgeo.org
> You can UNSUBSCRIBE at https://lists.osgeo.org/mailman/listinfo/africa
>
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From Hanlie.Lundie at sita.co.za  Wed Aug 24 02:13:32 2022
From: Hanlie.Lundie at sita.co.za (Hanlie Lundie)
Date: Wed, 24 Aug 2022 09:13:32 +0000
Subject: [OSGeo Africa] List of National Key Points Shapefile
In-Reply-To: <CAPhaPt43ZyaKHau=CR5vTm1eSS4AnUq_bThaEC_twL-FR484Nw@mail.gmail.com>
References: <CAPhaPt43ZyaKHau=CR5vTm1eSS4AnUq_bThaEC_twL-FR484Nw@mail.gmail.com>
Message-ID: <c86535425bc1451fa036ae6540cba78d@sita.co.za>

Hi Luvo

As far as I know the custodian of this data is the SAPS.

Kind Regards

[cid:image001.png at 01CF6907.289402F0]

Hanlie Lundie
Senior System Analyst
GPr GISc 1252



From: Africa <africa-bounces at lists.osgeo.org> On Behalf Of Luvo Qumba
Sent: Wednesday, 24 August 2022 09:25
To: Africa local chapter discussions <africa at lists.osgeo.org>
Subject: [OSGeo Africa] List of National Key Points Shapefile

Hi Everyone,

Does anyone have a shapefile of National Key Points in South Africa? according to the South African<https://en.wikipedia.org/wiki/South_Africa> National Key Points Act, 1980<https://en.wikipedia.org/wiki/National_Key_Points_Act,_1980>

I am also curious for research purposes to know who is the data custodian


--
Regards....

Luvo Qumba Pr L.(SA) , M.SAGI, M. SAGC

GIS | Land Surveyor | Sectional Title Practitioner | Licenced Drone Pilot
w :

m: 0835164958 | f : 086 272 4963 w : LinkedIn<https://www.linkedin.com/in/luvo-qumba-pr-l-sa-7250b726/>

a:

Durban North, Kwazulu Natal, South Africa







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From newmarch at land-surveyors.com  Wed Aug 24 02:27:44 2022
From: newmarch at land-surveyors.com (Peter Newmarch)
Date: Wed, 24 Aug 2022 11:27:44 +0200
Subject: [OSGeo Africa] List of National Key Points Shapefile
In-Reply-To: <CAPhaPt43ZyaKHau=CR5vTm1eSS4AnUq_bThaEC_twL-FR484Nw@mail.gmail.com>
References: <CAPhaPt43ZyaKHau=CR5vTm1eSS4AnUq_bThaEC_twL-FR484Nw@mail.gmail.com>
Message-ID: <!&!AAAAAAAAAAAuAAAAAAAAAFgMPXbstFRAoat96mk5C8cBAMO2jhD3dRHOtM0AqgC7tuYAAAAAAA4AABAAAACoNVGCmDWeT6hAWnK9frlIAQAAAAA=@land-surveyors.com>

Dear Luvo,

 

You need to approach SAPS and in particular the ?Critical Infrastructure Protection Regulator? ? the Critical Infrustructure Protection Act repeals the National Key points Act.

 

Very few ?National Key Points? exist ? as of 2015 it was a little over 200 odd.

 

Regards

 

Peter

 

From: Africa <africa-bounces at lists.osgeo.org> On Behalf Of Luvo Qumba
Sent: Wednesday, 24 August 2022 09:25
To: Africa local chapter discussions <africa at lists.osgeo.org>
Subject: [OSGeo Africa] List of National Key Points Shapefile

 

Hi Everyone,

 

Does anyone have a shapefile of National Key Points in South Africa? according to the  <https://en.wikipedia.org/wiki/South_Africa> South African  <https://en.wikipedia.org/wiki/National_Key_Points_Act,_1980> National Key Points Act, 1980

 

I am also curious for research purposes to know who is the data custodian

 

 

-- 


Regards....


Luvo Qumba Pr L.(SA) , M.SAGI, M. SAGC


GIS | Land Surveyor | Sectional Title Practitioner | Licenced Drone Pilot


w :

m: 0835164958 | f : 086 272 4963 w : LinkedIn <https://www.linkedin.com/in/luvo-qumba-pr-l-sa-7250b726/> 


a:

Durban North, Kwazulu Natal, South Africa

	
		

 

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From gavinjfleming at gmail.com  Mon Aug 29 05:00:48 2022
From: gavinjfleming at gmail.com (Gavin Fleming)
Date: Mon, 29 Aug 2022 14:00:48 +0200
Subject: [OSGeo Africa] List of National Key Points Shapefile
In-Reply-To: <!&!AAAAAAAAAAAuAAAAAAAAAFgMPXbstFRAoat96mk5C8cBAMO2jhD3dRHOtM0AqgC7tuYAAAAAAA4AABAAAACoNVGCmDWeT6hAWnK9frlIAQAAAAA=@land-surveyors.com>
References: <CAPhaPt43ZyaKHau=CR5vTm1eSS4AnUq_bThaEC_twL-FR484Nw@mail.gmail.com>
 <!&!AAAAAAAAAAAuAAAAAAAAAFgMPXbstFRAoat96mk5C8cBAMO2jhD3dRHOtM0AqgC7tuYAAAAAAA4AABAAAACoNVGCmDWeT6hAWnK9frlIAQAAAAA=@land-surveyors.com>
Message-ID: <FFB4FAF2-4C48-4EBF-B424-ADB4DEB8E20E@gmail.com>

Hi Luvo

For this and any other government core data sets you should be able to search the EMC at sasdi.net. It is currently hosting the legacy site and appears to be down right now. I?ve looked in the replacement site we are developing and there?s no ?keypoint? or ?critical infrastructure' entry. 

The public beta version of the new site will be available soon. 

Official data custodians are obliged by law to publish metadata describing their data sets on the EMC. 

Gavin

> On 24 Aug 2022, at 11:27, Peter Newmarch <newmarch at land-surveyors.com> wrote:
> 
> Dear Luvo,
>  
> You need to approach SAPS and in particular the ?Critical Infrastructure Protection Regulator? ? the Critical Infrustructure Protection Act repeals the National Key points Act.
>  
> Very few ?National Key Points? exist ? as of 2015 it was a little over 200 odd.
>  
> Regards
>  
> Peter
>  
> From: Africa <africa-bounces at lists.osgeo.org> On Behalf Of Luvo Qumba
> Sent: Wednesday, 24 August 2022 09:25
> To: Africa local chapter discussions <africa at lists.osgeo.org>
> Subject: [OSGeo Africa] List of National Key Points Shapefile
>  
> Hi Everyone,
>  
> Does anyone have a shapefile of National Key Points in South Africa? according to the South African <https://en.wikipedia.org/wiki/South_Africa> National Key Points Act, 1980 <https://en.wikipedia.org/wiki/National_Key_Points_Act,_1980>
>  
> I am also curious for research purposes to know who is the data custodian
>  
>  
> -- 
> Regards....
> Luvo Qumba Pr L.(SA) , M.SAGI, M. SAGC
> GIS | Land Surveyor | Sectional Title Practitioner | Licenced Drone Pilot
> w :
> m: 0835164958 | f : 086 272 4963 w : LinkedIn <https://www.linkedin.com/in/luvo-qumba-pr-l-sa-7250b726/>
> a:
> Durban North, Kwazulu Natal, South Africa
>  
> _______________________________________________
> Africa mailing list
> Africa at lists.osgeo.org
> You can UNSUBSCRIBE at https://lists.osgeo.org/mailman/listinfo/africa

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From erick.ndava at gmail.com  Tue Aug 30 15:15:36 2022
From: erick.ndava at gmail.com (E. Ndava)
Date: Wed, 31 Aug 2022 00:15:36 +0200
Subject: [OSGeo Africa] Points Clustering/ Grouping - Seeking a Solution
Message-ID: <CALcEFLxs-rmurBeO-kgYkgXT=RAV-s-rjc_a8_Fym2Ow4AgxHg@mail.gmail.com>

Hello List Members,

I have a set of 64 points I intend to group by proximity into three
clusters (of 22, 22, 20) and am looking for a QGIS, PostGIS or any other
OSS solution to this problem.

I have Googled for one on the web and have skimmed
https://gis.stackexchange.com/ and have not found an appropriate one (a.k.a
ran out of patience).

My starting point - Constrained K-Means Clustering, in QGIS did not
yield acceptable results [
https://spatialthoughts.com/2021/01/31/equal-sized-kmeans-qgis/ ]

Looking forward to some pointers.

Erick.

PS:
List Inappropriate Content:  (Ignore)

The below clusters, Red, Green and Blue were produced by esri software
(source under image)

[image: group_analysis_attempt_2.PNG]

- I also tried the esri way (ArcGIS), Sort Tool which too did not produce
acceptance (i.e. clusters not equally sized),  results but something close.
Source - [
https://community.esri.com/t5/spatial-data-science-questions/group-every-near-50-points-together/m-p/167184?commentID=687372#comment-687293
 ]

- I do not have access to ArcPro.
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From gavinjfleming at gmail.com  Tue Aug 30 22:07:55 2022
From: gavinjfleming at gmail.com (Gavin Fleming)
Date: Wed, 31 Aug 2022 07:07:55 +0200
Subject: [OSGeo Africa] Points Clustering/ Grouping - Seeking a Solution
In-Reply-To: <CALcEFLxs-rmurBeO-kgYkgXT=RAV-s-rjc_a8_Fym2Ow4AgxHg@mail.gmail.com>
References: <CALcEFLxs-rmurBeO-kgYkgXT=RAV-s-rjc_a8_Fym2Ow4AgxHg@mail.gmail.com>
Message-ID: <90C8FE5F-9B6C-44C4-97BB-D375A08B2D4B@gmail.com>

Hi Eric

Nice to hear from you!

also try DBSCAN 

k-means and DBSCAN are available natively in QGIS, PostGIS and GRASS, so also try these in the different implementations

GRASS also has OPTICS and a couple of others (in v.cluster)

I don?t think any method will give you the three pre-determined fixed number clusters it seems you are looking for. 

hth

Gavin

> On 31 Aug 2022, at 00:15, E. Ndava <erick.ndava at gmail.com> wrote:
> 
> Hello List Members,
> 
> I have a set of 64 points I intend to group by proximity into three clusters (of 22, 22, 20) and am looking for a QGIS, PostGIS or any other OSS solution to this problem.
> 
> I have Googled for one on the web and have skimmed https://gis.stackexchange.com/ <https://gis.stackexchange.com/> and have not found an appropriate one (a.k.a ran out of patience).
> 
> My starting point - Constrained K-Means Clustering, in QGIS did not yield acceptable results [ https://spatialthoughts.com/2021/01/31/equal-sized-kmeans-qgis/ <https://spatialthoughts.com/2021/01/31/equal-sized-kmeans-qgis/> ] 
> 
> Looking forward to some pointers.
> 
> Erick.
> 
> PS:
> List Inappropriate Content:  (Ignore)
> 
> The below clusters, Red, Green and Blue were produced by esri software (source under image)
> 
> <group_analysis_attempt_2.PNG>
> 
> - I also tried the esri way (ArcGIS), Sort Tool which too did not produce acceptance (i.e. clusters not equally sized),  results but something close. Source - [ https://community.esri.com/t5/spatial-data-science-questions/group-every-near-50-points-together/m-p/167184?commentID=687372#comment-687293 <https://community.esri.com/t5/spatial-data-science-questions/group-every-near-50-points-together/m-p/167184?commentID=687372#comment-687293> ]
> 
> - I do not have access to ArcPro.
> _______________________________________________
> Africa mailing list
> Africa at lists.osgeo.org
> You can UNSUBSCRIBE at https://lists.osgeo.org/mailman/listinfo/africa

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From erick.ndava at gmail.com  Tue Aug 30 23:23:54 2022
From: erick.ndava at gmail.com (E. Ndava)
Date: Wed, 31 Aug 2022 08:23:54 +0200
Subject: [OSGeo Africa] Points Clustering/ Grouping - Seeking a Solution
In-Reply-To: <90C8FE5F-9B6C-44C4-97BB-D375A08B2D4B@gmail.com>
References: <CALcEFLxs-rmurBeO-kgYkgXT=RAV-s-rjc_a8_Fym2Ow4AgxHg@mail.gmail.com>
 <90C8FE5F-9B6C-44C4-97BB-D375A08B2D4B@gmail.com>
Message-ID: <CALcEFLy6teDAb+hKUh3+YeOK=4OY0YGenh6QSXTJoELgyJj-LQ@mail.gmail.com>

Hi Gavin.

Great to hear from you too.

Looks like it's a matter of trying several implementations, as you put it.
No silver bullet.

I will dig deeper on DBSCAN and give another go at k-means and brave it out
with GRASS.


*"I don?t think any method will give you the three pre-determined fixed
number clusters it seems you are looking for."*
Something close to start with is acceptable and can be modified with some
manual intervention. My dataset is small and the desired clusters few. Now
I see trouble brewing with a larger dataset, more clusters and weighted
points.

Thanks again

On Wed, 31 Aug 2022 at 07:08, Gavin Fleming <gavinjfleming at gmail.com> wrote:

> Hi Eric
>
> Nice to hear from you!
>
> also try DBSCAN
>
> k-means and DBSCAN are available natively in QGIS, PostGIS and GRASS, so
> also try these in the different implementations
>
> GRASS also has OPTICS and a couple of others (in v.cluster)
>
> I don?t think any method will give you the three pre-determined fixed
> number clusters it seems you are looking for.
>
> hth
>
> Gavin
>
> On 31 Aug 2022, at 00:15, E. Ndava <erick.ndava at gmail.com> wrote:
>
> Hello List Members,
>
> I have a set of 64 points I intend to group by proximity into three
> clusters (of 22, 22, 20) and am looking for a QGIS, PostGIS or any other
> OSS solution to this problem.
>
> I have Googled for one on the web and have skimmed
> https://gis.stackexchange.com/ and have not found an appropriate one
> (a.k.a ran out of patience).
>
> My starting point - Constrained K-Means Clustering, in QGIS did not
> yield acceptable results [
> https://spatialthoughts.com/2021/01/31/equal-sized-kmeans-qgis/ ]
>
> Looking forward to some pointers.
>
> Erick.
>
> PS:
> List Inappropriate Content:  (Ignore)
>
> The below clusters, Red, Green and Blue were produced by esri software
> (source under image)
>
> <group_analysis_attempt_2.PNG>
>
> - I also tried the esri way (ArcGIS), Sort Tool which too did not produce
> acceptance (i.e. clusters not equally sized),  results but something close.
> Source - [
> https://community.esri.com/t5/spatial-data-science-questions/group-every-near-50-points-together/m-p/167184?commentID=687372#comment-687293
>  ]
>
> - I do not have access to ArcPro.
> _______________________________________________
> Africa mailing list
> Africa at lists.osgeo.org
> You can UNSUBSCRIBE at https://lists.osgeo.org/mailman/listinfo/africa
>
>
> _______________________________________________
> Africa mailing list
> Africa at lists.osgeo.org
> You can UNSUBSCRIBE at https://lists.osgeo.org/mailman/listinfo/africa
>
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From amirishauur at gmail.com  Wed Aug 31 12:05:06 2022
From: amirishauur at gmail.com (Amiri Shauur)
Date: Wed, 31 Aug 2022 22:05:06 +0300
Subject: [OSGeo Africa] Africa Digest, Vol 184, Issue 11
In-Reply-To: <mailman.1.1661972401.24652.africa@lists.osgeo.org>
References: <mailman.1.1661972401.24652.africa@lists.osgeo.org>
Message-ID: <CAL4oMCp=mtp9Khg351GNoo8cL3C8aG81Z23FV_U9f2FpOASkFA@mail.gmail.com>

Excuse me I HV been out for while and am far away from mapping issues
kindly pliiz unsent these sms u keep send to me for yrs

On Wed, Aug 31, 2022, 10:00 PM <africa-request at lists.osgeo.org> wrote:

> Send Africa mailing list submissions to
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> Today's Topics:
>
>    1. Re: Points Clustering/ Grouping - Seeking a Solution
>       (Gavin Fleming)
>    2. Re: Points Clustering/ Grouping - Seeking a Solution (E. Ndava)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Wed, 31 Aug 2022 07:07:55 +0200
> From: Gavin Fleming <gavinjfleming at gmail.com>
> To: Africa local chapter discussions <africa at lists.osgeo.org>
> Subject: Re: [OSGeo Africa] Points Clustering/ Grouping - Seeking a
>         Solution
> Message-ID: <90C8FE5F-9B6C-44C4-97BB-D375A08B2D4B at gmail.com>
> Content-Type: text/plain; charset="utf-8"
>
> Hi Eric
>
> Nice to hear from you!
>
> also try DBSCAN
>
> k-means and DBSCAN are available natively in QGIS, PostGIS and GRASS, so
> also try these in the different implementations
>
> GRASS also has OPTICS and a couple of others (in v.cluster)
>
> I don?t think any method will give you the three pre-determined fixed
> number clusters it seems you are looking for.
>
> hth
>
> Gavin
>
> > On 31 Aug 2022, at 00:15, E. Ndava <erick.ndava at gmail.com> wrote:
> >
> > Hello List Members,
> >
> > I have a set of 64 points I intend to group by proximity into three
> clusters (of 22, 22, 20) and am looking for a QGIS, PostGIS or any other
> OSS solution to this problem.
> >
> > I have Googled for one on the web and have skimmed
> https://gis.stackexchange.com/ <https://gis.stackexchange.com/> and have
> not found an appropriate one (a.k.a ran out of patience).
> >
> > My starting point - Constrained K-Means Clustering, in QGIS did not
> yield acceptable results [
> https://spatialthoughts.com/2021/01/31/equal-sized-kmeans-qgis/ <
> https://spatialthoughts.com/2021/01/31/equal-sized-kmeans-qgis/> ]
> >
> > Looking forward to some pointers.
> >
> > Erick.
> >
> > PS:
> > List Inappropriate Content:  (Ignore)
> >
> > The below clusters, Red, Green and Blue were produced by esri software
> (source under image)
> >
> > <group_analysis_attempt_2.PNG>
> >
> > - I also tried the esri way (ArcGIS), Sort Tool which too did not
> produce acceptance (i.e. clusters not equally sized),  results but
> something close. Source - [
> https://community.esri.com/t5/spatial-data-science-questions/group-every-near-50-points-together/m-p/167184?commentID=687372#comment-687293
> <
> https://community.esri.com/t5/spatial-data-science-questions/group-every-near-50-points-together/m-p/167184?commentID=687372#comment-687293>
> ]
> >
> > - I do not have access to ArcPro.
> > _______________________________________________
> > Africa mailing list
> > Africa at lists.osgeo.org
> > You can UNSUBSCRIBE at https://lists.osgeo.org/mailman/listinfo/africa
>
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>
> ------------------------------
>
> Message: 2
> Date: Wed, 31 Aug 2022 08:23:54 +0200
> From: "E. Ndava" <erick.ndava at gmail.com>
> To: Africa local chapter discussions <africa at lists.osgeo.org>
> Subject: Re: [OSGeo Africa] Points Clustering/ Grouping - Seeking a
>         Solution
> Message-ID:
>         <CALcEFLy6teDAb+hKUh3+YeOK=
> 4OY0YGenh6QSXTJoELgyJj-LQ at mail.gmail.com>
> Content-Type: text/plain; charset="utf-8"
>
> Hi Gavin.
>
> Great to hear from you too.
>
> Looks like it's a matter of trying several implementations, as you put it.
> No silver bullet.
>
> I will dig deeper on DBSCAN and give another go at k-means and brave it out
> with GRASS.
>
>
> *"I don?t think any method will give you the three pre-determined fixed
> number clusters it seems you are looking for."*
> Something close to start with is acceptable and can be modified with some
> manual intervention. My dataset is small and the desired clusters few. Now
> I see trouble brewing with a larger dataset, more clusters and weighted
> points.
>
> Thanks again
>
> On Wed, 31 Aug 2022 at 07:08, Gavin Fleming <gavinjfleming at gmail.com>
> wrote:
>
> > Hi Eric
> >
> > Nice to hear from you!
> >
> > also try DBSCAN
> >
> > k-means and DBSCAN are available natively in QGIS, PostGIS and GRASS, so
> > also try these in the different implementations
> >
> > GRASS also has OPTICS and a couple of others (in v.cluster)
> >
> > I don?t think any method will give you the three pre-determined fixed
> > number clusters it seems you are looking for.
> >
> > hth
> >
> > Gavin
> >
> > On 31 Aug 2022, at 00:15, E. Ndava <erick.ndava at gmail.com> wrote:
> >
> > Hello List Members,
> >
> > I have a set of 64 points I intend to group by proximity into three
> > clusters (of 22, 22, 20) and am looking for a QGIS, PostGIS or any other
> > OSS solution to this problem.
> >
> > I have Googled for one on the web and have skimmed
> > https://gis.stackexchange.com/ and have not found an appropriate one
> > (a.k.a ran out of patience).
> >
> > My starting point - Constrained K-Means Clustering, in QGIS did not
> > yield acceptable results [
> > https://spatialthoughts.com/2021/01/31/equal-sized-kmeans-qgis/ ]
> >
> > Looking forward to some pointers.
> >
> > Erick.
> >
> > PS:
> > List Inappropriate Content:  (Ignore)
> >
> > The below clusters, Red, Green and Blue were produced by esri software
> > (source under image)
> >
> > <group_analysis_attempt_2.PNG>
> >
> > - I also tried the esri way (ArcGIS), Sort Tool which too did not produce
> > acceptance (i.e. clusters not equally sized),  results but something
> close.
> > Source - [
> >
> https://community.esri.com/t5/spatial-data-science-questions/group-every-near-50-points-together/m-p/167184?commentID=687372#comment-687293
> >  ]
> >
> > - I do not have access to ArcPro.
> > _______________________________________________
> > Africa mailing list
> > Africa at lists.osgeo.org
> > You can UNSUBSCRIBE at https://lists.osgeo.org/mailman/listinfo/africa
> >
> >
> > _______________________________________________
> > Africa mailing list
> > Africa at lists.osgeo.org
> > You can UNSUBSCRIBE at https://lists.osgeo.org/mailman/listinfo/africa
> >
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> ------------------------------
>
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> ------------------------------
>
> End of Africa Digest, Vol 184, Issue 11
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