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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D">The idea is eliminating error from calculations.&nbsp; The &#8220;standard&#8221; precision for fixed geographical locations in the USGS Bluebook is DMS with 5 decimal places.&nbsp;
 In Florida, that is roughly 1mm.&nbsp; This tool shows DMS to 6 decimal places.&nbsp; I have used it to check the accuracy of plotted data and it is accurate to that level of precision plus a protection digit.&nbsp; I don&#8217;t think any of us using it believe the 13 decimal
 places in the DD readout.&nbsp; My calculator will only take 9.&nbsp; But if you take that 9 decimal places DD result and convert it to DMS, you get the 5 decimal place precision that the USGS uses in the Bluebook.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D">I&#8217;ve used the tool several times to check the plotted location of a CORS station or a USGS monument in ArcGIS and it is dead on, if you zoom in tight enough.&nbsp;
 In actuality, though, I think that Julie (who wrote it) just didn&#8217;t bother to round the floating point numbers to any given precision, but left it up to the user.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D">By the way, there is talk that with the new high-accuracy atomic clocks (1000 times more precise than current ones), that GPS may eventually be eclipsed by
 a system that will tell you where you are anywhere on the face of the earth, without any external reference.&nbsp; Right now, good GPS survey data will get you to about 1 cm horizontal and 2 cm vertical accuracy in Florida with an hour of data acquisition, this
 new system could give you mm accuracy in both dimensions with virtually instantaneous data (ok, maybe 1 second).&nbsp; It would make self-driving cars and auto-landing aircraft routine.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D">But getting back to the subject, I think the major advantage is that it eliminates one source of error almost completely.&nbsp; You can then concentrate on the other
 errors of the various layers in your map.<o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:24.0pt;font-family:&quot;Brush Script MT&quot;;color:#1F497D">-- John</span></b><span style="font-size:24.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D">
<o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">From:</span></b><span style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;"> shrug-l-bounces@lists.dep.state.fl.us [mailto:shrug-l-bounces@lists.dep.state.fl.us]
<b>On Behalf Of </b>Jim Robeson<br>
<b>Sent:</b> Thursday, June 12, 2014 9:18 AM<br>
<b>To:</b> 'Peterson, Lance'; shrug-l@lists.dep.state.fl.us<br>
<b>Subject:</b> RE: shrug-l: RE: Lat/Long Tool<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p>&nbsp;</o:p></p>
<p class="MsoNormal"><a name="_MailEndCompose"><span style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D">GPS, clearly is not.&nbsp; In the moving of data back and forth from system to system you do get rounding.&nbsp; Over the years positional dada
 can move.&nbsp; 13 decimal places is a case of just because you can, should you? </span>
</a><span style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:&quot;Arial&quot;,&quot;sans-serif&quot;;color:black">R</span><span style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:black">egards,</span><span style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:18.0pt;font-family:&quot;ParkAvenue BT&quot;;color:#1F497D">Jim Robeson<o:p></o:p></span></b></p>
<p class="MsoNormal"><i><span style="font-size:10.0pt;font-family:&quot;Freestyle Script&quot;;color:#1F497D"><o:p>&nbsp;</o:p></span></i></p>
<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D">James M. Robeson<o:p></o:p></span></b></p>
<p class="MsoNormal"><span style="font-size:8.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D">Mapping/GIS Sales, Trimble Certified Trainer&nbsp;&nbsp;&nbsp;
<o:p></o:p></span></p>
<p class="MsoNormal"><a href="mailto:Jim@gpserv.com"><span style="font-size:8.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">Jim@gpserv.com</span></a><span style="font-size:8.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D">Direct (850) 656-6075<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D"><o:p>&nbsp;</o:p></span></p>
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<p class="MsoNormal"><a href="mailto:Jim@gpserv.com"><span style="font-size:8.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D;text-decoration:none"><img border="0" width="624" height="215" id="Picture_x0020_3" src="cid:image001.jpg@01CF8620.34DD7D80" alt="cid:image003.jpg@01CF349E.EF731ED0"></span></a><span style="font-size:8.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D"><o:p>&nbsp;</o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D">Products</span></b><span style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D">:&nbsp;
</span><b><span style="font-size:8.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D">Trimble Mapping, Trimble Survey, ESRI, Leica HDS Laser Scanners, LTI, Ricoh, Laser Craft,</span></b><span style="font-size:8.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D"><o:p>&nbsp;</o:p></span></p>
<p class="MsoNormal"><b><i><span style="font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:red">Survey or Mapping Products, Get it Repaired in Orlando!
</span></i></b><b><span style="font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:red"><o:p></o:p></span></b></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D"><o:p>&nbsp;</o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D"><o:p>&nbsp;</o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">From:</span></b><span style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">
<a href="mailto:shrug-l-bounces@lists.dep.state.fl.us">shrug-l-bounces@lists.dep.state.fl.us</a> [<a href="mailto:shrug-l-bounces@lists.dep.state.fl.us">mailto:shrug-l-bounces@lists.dep.state.fl.us</a>]
<b>On Behalf Of </b>Peterson, Lance<br>
<b>Sent:</b> Wednesday, June 11, 2014 10:40 AM<br>
<b>To:</b> <a href="mailto:shrug-l@lists.dep.state.fl.us">shrug-l@lists.dep.state.fl.us</a><br>
<b>Subject:</b> shrug-l: RE: Lat/Long Tool<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p>&nbsp;</o:p></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:&quot;Arial&quot;,&quot;sans-serif&quot;;color:black">I find it hard to believe that GPS measurements can be accurate to 13 decimal places. For decimal degrees that would be .00001mm.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:&quot;Arial&quot;,&quot;sans-serif&quot;;color:black"><o:p>&nbsp;</o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:&quot;Arial&quot;,&quot;sans-serif&quot;;color:black">Using a greater number of significant digits in a calculation than a device is capable of measuring will just lead to false precision.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:&quot;Arial&quot;,&quot;sans-serif&quot;;color:black"><o:p>&nbsp;</o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:&quot;Arial&quot;,&quot;sans-serif&quot;;color:black">Lance Peterson<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:&quot;Arial&quot;,&quot;sans-serif&quot;;color:black">ISS Systems Developer<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:&quot;Arial&quot;,&quot;sans-serif&quot;;color:black">City of Tallahassee<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:&quot;Arial&quot;,&quot;sans-serif&quot;;color:black">850-891-2019<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:&quot;Arial&quot;,&quot;sans-serif&quot;;color:black"><o:p>&nbsp;</o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:&quot;Tahoma&quot;,&quot;sans-serif&quot;">From:</span></b><span style="font-size:10.0pt;font-family:&quot;Tahoma&quot;,&quot;sans-serif&quot;">
<a href="mailto:shrug-l-bounces@lists.dep.state.fl.us">shrug-l-bounces@lists.dep.state.fl.us</a> [<a href="mailto:shrug-l-bounces@lists.dep.state.fl.us">mailto:shrug-l-bounces@lists.dep.state.fl.us</a>]
<b>On Behalf Of </b>Sykes, John<br>
<b>Sent:</b> Wednesday, June 11, 2014 9:48 AM<br>
<b>To:</b> <a href="mailto:shrug-l@lists.dep.state.fl.us">shrug-l@lists.dep.state.fl.us</a><br>
<b>Subject:</b> shrug-l: Lat/Long Tool<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p>&nbsp;</o:p></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">Before ArcGIS 10.2, I had a dynamite tool from the USDA National Forest Service out of Santa Fe, NM, that could be added to a toolbar and would allow you to click on a point
 and it would give you a pop-up with the latitude &amp; longitude to about 6 or more decimal places in the seconds field (e.g., 26 15&#8217; 20.546947&#8221;) and decimal degrees to about 13 decimal places.&nbsp; Of course, it no longer works with 10.2.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">&nbsp;<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">Now before you say no one needs that kind of accuracy I say, wrong!&nbsp; Just look at any CORS station, which is listed in DMS to 5 decimal places as is all USGS marker data.&nbsp;
 This tool had those locations nailed to all five decimal places!<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">The DEP tool is less useful that the ArcGIS readout both of which are 2 decimal places in DMS format (the ArcGIS readout can give higher accuracy if used in the degrees,
 decimal minutes format &#8211; go figure).<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">GIS and GPS are getting way more accurate, we need GIS tools that have the same level of accuracy.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">But enough of the preaching, the original question is, does anyone have or know of a lat/long tool with about 6 decimal accuracy in DMS mode that works with 10.2?<o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:24.0pt;font-family:&quot;Brush Script MT&quot;">-- John</span></b><span style="font-size:24.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">
</span><span style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">&nbsp;<o:p></o:p></span></p>
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