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<div class="gmail_quote">On Fri, Jun 5, 2009 at 19:46, Jason KG4WSV <span dir="ltr"><<a href="mailto:kg4wsv@gmail.com">kg4wsv@gmail.com</a>></span> wrote:<br>
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<div class="im">On Fri, Jun 5, 2009 at 5:35 PM, Matt Murphy<<a href="mailto:matt.kc8bew@gmail.com">matt.kc8bew@gmail.com</a>> wrote:<br>> I will be participating in a county-wide disaster drill this month. Is<br>
> there a way to plot a moving area instead of a point?<br><br></div>Use APRS multiline objects. As an example NWS storm plots are<br>routinely injected into the APRS-IS and gated locally, so storm areas<br>are outlined. The outline is relative to the object, so it will move<br>
as the object moves.<br><br>You'll have to move it, either manually or with a script of some sort.<br><br>Since gas will expand, your script could even enlarge the area as time<br>progresses.<br><br>I know xastir handles these objects; not sure about other APRS apps.<br>
(check Curt's client comparison chart here:<br><a href="http://www.eskimo.com/~archer/aprs_capabilities.html" target="_blank">http://www.eskimo.com/~archer/aprs_capabilities.html</a> )<br><br>Clients that can't display the polygons (e.g. D700) should still plot<br>
the object itself, which would ideally be the center of it (or most<br>affected area, etc).<br><br><a href="http://pages.swcp.com/~russo/APRS_Multiline_Protocol.html" target="_blank">http://pages.swcp.com/~russo/APRS_Multiline_Protocol.html</a><br>
<br>-Jason<br><font color="#888888">kg4wsv<br></font></blockquote></div>
<p><br>On Fri, Jun 5, 2009 at 19:24, Robert Bruninga <span dir="ltr"><<a href="mailto:bruninga@usna.edu">bruninga@usna.edu</a>></span> wrote:<br></p>
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<div class="im">If your clients do Dead Reckoning like the original APRSdos,<br>just put the shape on th emap as an object with a course and<br>speed, and it should move on recepit on all clients that have DR<br>enabled. But most don't.<br>
<br>Better way to be sure everyone sees it, is to manually move it<br>periodically. In the original APRS, just select it, move the<br>cursor, hit UPDATE and its done. You should not have to re-draw<br>it each time, just select and move.<br>
<br>Hope that helps<br>Bob<br>WB4APR<br><br>Use anyone of the APRS shape symbols<br></div></blockquote>
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<div>I have UIView that I will probably use. It is running the APRSdos maps. I am getting even better maps from our caounty GIS dept :-) I hope to have them for this drill. I will test the shape symbols and look into an enlarging area/time.</div>
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<div>Thanks<br>-- <br><br>73,<br>Matt Murphy, kc8bew<br><a href="http://mcares.kc8bew.net">http://mcares.kc8bew.net</a><br>Muskingum Co. ARES EC<br></div>