<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:x="urn:schemas-microsoft-com:office:excel" xmlns:p="urn:schemas-microsoft-com:office:powerpoint" xmlns:a="urn:schemas-microsoft-com:office:access" xmlns:dt="uuid:C2F41010-65B3-11d1-A29F-00AA00C14882" xmlns:s="uuid:BDC6E3F0-6DA3-11d1-A2A3-00AA00C14882" xmlns:rs="urn:schemas-microsoft-com:rowset" xmlns:z="#RowsetSchema" xmlns:b="urn:schemas-microsoft-com:office:publisher" xmlns:ss="urn:schemas-microsoft-com:office:spreadsheet" xmlns:c="urn:schemas-microsoft-com:office:component:spreadsheet" xmlns:odc="urn:schemas-microsoft-com:office:odc" xmlns:oa="urn:schemas-microsoft-com:office:activation" xmlns:html="http://www.w3.org/TR/REC-html40" xmlns:q="http://schemas.xmlsoap.org/soap/envelope/" xmlns:rtc="http://microsoft.com/officenet/conferencing" xmlns:D="DAV:" xmlns:Repl="http://schemas.microsoft.com/repl/" xmlns:mt="http://schemas.microsoft.com/sharepoint/soap/meetings/" xmlns:x2="http://schemas.microsoft.com/office/excel/2003/xml" xmlns:ppda="http://www.passport.com/NameSpace.xsd" xmlns:ois="http://schemas.microsoft.com/sharepoint/soap/ois/" xmlns:dir="http://schemas.microsoft.com/sharepoint/soap/directory/" xmlns:ds="http://www.w3.org/2000/09/xmldsig#" xmlns:dsp="http://schemas.microsoft.com/sharepoint/dsp" xmlns:udc="http://schemas.microsoft.com/data/udc" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:sub="http://schemas.microsoft.com/sharepoint/soap/2002/1/alerts/" xmlns:ec="http://www.w3.org/2001/04/xmlenc#" xmlns:sp="http://schemas.microsoft.com/sharepoint/" xmlns:sps="http://schemas.microsoft.com/sharepoint/soap/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:udcs="http://schemas.microsoft.com/data/udc/soap" xmlns:udcxf="http://schemas.microsoft.com/data/udc/xmlfile" xmlns:udcp2p="http://schemas.microsoft.com/data/udc/parttopart" xmlns:wf="http://schemas.microsoft.com/sharepoint/soap/workflow/" xmlns:dsss="http://schemas.microsoft.com/office/2006/digsig-setup" xmlns:dssi="http://schemas.microsoft.com/office/2006/digsig" xmlns:mdssi="http://schemas.openxmlformats.org/package/2006/digital-signature" xmlns:mver="http://schemas.openxmlformats.org/markup-compatibility/2006" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns:mrels="http://schemas.openxmlformats.org/package/2006/relationships" xmlns:spwp="http://microsoft.com/sharepoint/webpartpages" xmlns:ex12t="http://schemas.microsoft.com/exchange/services/2006/types" xmlns:ex12m="http://schemas.microsoft.com/exchange/services/2006/messages" xmlns:pptsl="http://schemas.microsoft.com/sharepoint/soap/SlideLibrary/" xmlns:spsl="http://microsoft.com/webservices/SharePointPortalServer/PublishedLinksService" xmlns:Z="urn:schemas-microsoft-com:" xmlns:st="" xmlns="http://www.w3.org/TR/REC-html40"><head><meta http-equiv=Content-Type content="text/html; charset=us-ascii"><meta name=Generator content="Microsoft Word 12 (filtered medium)"><style><!--
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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='color:#1F497D'>Hi Tripp,<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>I have been able to derive the radius of a curve using input geometry by utilizing </span><span style='color:#1F497D'>the </span><span style='color:#C0504D'>IConstructCircularArc</span><span style='color:#1F497D'> and </span><span style='color:#C0504D'>ICircularArc</span><span style='color:#1F497D'> interfaces in ArcObjects. The </span><span style='color:#C0504D'>ICircularArc</span><span style='color:#1F497D'> interface includes a Radius property. Outside of ArcObjects, I’m not sure how you would do it.<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Paul<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Paul O'Rourke<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Transportation Statistics Office<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Manager, GIS Support Section<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>paul.orourke@dot.state.fl.us<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>850.414.4732<o:p></o:p></span></p><p class=MsoNormal><i><span style='color:#0070C0'>Safety is no accident<o:p></o:p></span></i></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> shrug-l-bounces@lists.dep.state.fl.us [mailto:shrug-l-bounces@lists.dep.state.fl.us] <b>On Behalf Of </b>Tripp Corbin<br><b>Sent:</b> Tuesday, April 05, 2011 3:10 PM<br><b>To:</b> shrug-l@lists.dep.state.fl.us<br><b>Subject:</b> shrug-l: Determining radius of an Arc<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Hey Guys,<o:p></o:p></p><p class=MsoNormal>I need some help. I have a centerline feature class which includes arcs for the curves. They were created using the end-point arc and tangent arc tools. If I wanted to find out what the radius of the arc is, how can I do that. I know how to do this in CAD but have never had to do it in ArcGIS until today. If it is being stored as a true arc in the Geodatabase I would think the radius would be a property. <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'>Tripp Corbin, MCP, CFM, GISP<br>Vice President, GIS/IT<br><i>Esri Certified ArcGIS Desktop Trainer</i><br><i>Esri ArcGIS Desktop 10 Certified Associate</i><br><i>CompTIA Certified Technical Trainer</i><br><b><a href="http://www.keckwood.com/"><span style='font-size:18.0pt'>Keck & Wood, Inc.</span></a></b><br>(678) 417-4013<br>(678) 417-4055 fax<br><br><b><a href="http://www.esri.com/">ESRI Business Partner</a></b><o:p></o:p></span></p><p class=MsoNormal><b><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'><a href="http://www.keckwood.com/186654.ihtml#capturxarcgis">Adapx Premier Capturx Digital Pen Reseller</a></span></b><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p></o:p></span></p><p class=MsoNormal><b><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'><a href="http://www.docstar.com/keckwood">DocSTAR Strategic Partner</a></span></b><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p></o:p></span></p><p class=MsoNormal><br><b><a href="http://visitor.constantcontact.com/d.jsp?m=1101787355057&p=oi" target="_blank">Click here to sign up for our Email Newsletter</a></b><o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>