<html><head></head><body><div class="ydpf52b4c57yahoo-style-wrap" style="font-family:bookman old style, new york, times, serif;font-size:13px;"><div><div dir="ltr" data-setdir="false">Hi Enock,</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">I have a observed the Maxar updates in Accra as well. I've seen developments which are not older than 6 months on the Maxar Premium Imagery.<br></div><div><br></div><div class="ydpf52b4c57signature"><div style="font-family:Helvetica, Arial, sans-serif;font-size:13px;"><div style="font-family:Helvetica, Arial, sans-serif;font-size:13px;" dir="ltr"><br></div><div style="font-family:Helvetica, Arial, sans-serif;font-size:13px;" dir="ltr">Samuel Darkwah Manu</div><div style="font-size:13px;" dir="ltr"><font size="2" face="courier new, courier, monaco, monospace, sans-serif" color="#808080">GIS & Data Analyst</font></div><div style="font-family:Helvetica, Arial, sans-serif;font-size:13px;" dir="ltr"><font size="2" face="courier new, courier, monaco, monospace, sans-serif" color="#808080">Accra, Ghana</font></div><div style="font-family:Helvetica, Arial, sans-serif;font-size:13px;" dir="ltr"><font size="2" face="courier new, courier, monaco, monospace, sans-serif" color="#808080">Tel: +233546902013</font></div><div style="font-family:Helvetica, Arial, sans-serif;font-size:13px;" dir="ltr"><font size="2" face="courier new, courier, monaco, monospace, sans-serif" color="#808080">Skype: Sammyhawkrad2<br></font></div><div style="font-family:Helvetica, Arial, sans-serif;font-size:13px;" dir="ltr"><font size="2" face="courier new, courier, monaco, monospace, sans-serif" color="#808080">Twitter:<span style="background-color:rgb(255, 255, 255);"> <a href="https://www.twitter.com/sammyhawkrad" rel="nofollow" target="_blank">@sammyhawkrad</a></span><br></font></div><div style="font-family:Helvetica, Arial, sans-serif;font-size:13px;" dir="ltr"><font size="2" face="courier new, courier, monaco, monospace, sans-serif" color="#808080"><br></font></div><div style="font-family:Helvetica, Arial, sans-serif;font-size:13px;" dir="ltr"><br></div></div></div></div>
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On Thursday, 3 March 2022, 08:25:51 GMT, Enock Seth Nyamador <open@enockseth.co> wrote:
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<div><div dir="ltr">Hello,<br></div><div dir="ltr"><br></div><div dir="ltr">If you haven't noticed already, Maxar Premium Imagery around Kumasi, <br></div><div dir="ltr">Ashanti Region have been updated to some extent.<br></div><div dir="ltr"><br></div><div dir="ltr">If you are mapping in/around Kumasi you might want to stop using Bing as <br></div><div dir="ltr">primary reference for new data and also re-use as much old objects you <br></div><div dir="ltr">can for new ones instead of deleting them via Replace Geometry [1] in JOSM.<br></div><div dir="ltr"><br></div><div dir="ltr">Looking at existing data (most building footprints; thank you <br></div><div dir="ltr">User:Sammyhawkrad), GPS traces, Street-level images and Bing which have <br></div><div dir="ltr">been used extensively, there's a little offset off `1.06; -0.61` that <br></div><div dir="ltr">should be applied when using Maxar Premium in Kumasi, this of course is <br></div><div dir="ltr">not final or might not be the case for outskirts; may be a starting <br></div><div dir="ltr">point when you are not sure.<br></div><div dir="ltr"><br></div><div dir="ltr">You can always check in JOSM via the Imagery Offset Database plugin if <br></div><div dir="ltr">there have been some saved offsets, here is a great quick start [2] on <br></div><div dir="ltr">how it works.<br></div><div dir="ltr"><br></div><div dir="ltr">It would be nice to also know the recency based on local knowledge of <br></div><div dir="ltr">what have changed or can be seen from our nearest environment.<br></div><div dir="ltr"><br></div><div dir="ltr">1. <br></div><div dir="ltr"><a href="https://wiki.openstreetmap.org/wiki/JOSM/Plugins/utilsplugin2#Replace_geometry_.28Ctrl.2BShift.2BG.29" target="_blank">https://wiki.openstreetmap.org/wiki/JOSM/Plugins/utilsplugin2#Replace_geometry_.28Ctrl.2BShift.2BG.29</a><br></div><div dir="ltr">2. <br></div><div dir="ltr"><a href="https://wiki.openstreetmap.org/wiki/JOSM/Plugins/Imagery_Offset_Database/Quick_Start" target="_blank">https://wiki.openstreetmap.org/wiki/JOSM/Plugins/Imagery_Offset_Database/Quick_Start</a><br></div><div dir="ltr"><br></div><div dir="ltr">-- <br></div><div dir="ltr">Best,<br></div><div dir="ltr">-Enock<br></div><div dir="ltr"><br></div><div dir="ltr"><br></div><div dir="ltr">_______________________________________________<br></div><div dir="ltr">Talk-gh mailing list<br></div><div dir="ltr"><a ymailto="mailto:Talk-gh@openstreetmap.org" href="mailto:Talk-gh@openstreetmap.org">Talk-gh@openstreetmap.org</a><br></div><div dir="ltr"><a href="https://lists.openstreetmap.org/listinfo/talk-gh" target="_blank">https://lists.openstreetmap.org/listinfo/talk-gh</a><br></div></div>
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