topic coordinate system by Arc Catalog or Geoprocessing tool in Geoprocessing Questions https://community.esri.com/t5/geoprocessing-questions/coordinate-system-by-arc-catalog-or-geoprocessing/m-p/552168#M18266 <HTML><HEAD></HEAD><BODY><P><SPAN lang="en"><SPAN class="hps">what is the difference</SPAN> <SPAN class="hps">between using</SPAN> <SPAN class="hps">the tool</SPAN> <SPAN class="atn hps">"</SPAN>DEFINE <SPAN class="hps">PROJECT"</SPAN> <SPAN class="hps">to define</SPAN> <SPAN class="hps">a coordinate system</SPAN> <SPAN class="hps">to my</SPAN> <SPAN class="hps">shape file</SPAN> <SPAN class="hps">or</SPAN> <SPAN class="hps">Feature</SPAN> <SPAN class="hps">Class, </SPAN> <SPAN class="hps">and use</SPAN> <SPAN class="hps">from since <SPAN lang="en"><SPAN class="hps">right click --&gt;</SPAN></SPAN> Arc Catalog </SPAN> <SPAN class="hps">and</SPAN> <SPAN class="hps">choose one</SPAN> <SPAN class="hps">simply from the file specified</SPAN> <SPAN class="hps">.It</SPAN> <SPAN class="hps">reaches</SPAN> <SPAN class="hps">the same?</SPAN></SPAN></P></BODY></HTML> Thu, 15 Jan 2015 22:31:17 GMT Arturo_FranciscoAcosta_Bazán 2015-01-15T22:31:17Z coordinate system by Arc Catalog or Geoprocessing tool https://community.esri.com/t5/geoprocessing-questions/coordinate-system-by-arc-catalog-or-geoprocessing/m-p/552168#M18266 <HTML><HEAD></HEAD><BODY><P><SPAN lang="en"><SPAN class="hps">what is the difference</SPAN> <SPAN class="hps">between using</SPAN> <SPAN class="hps">the tool</SPAN> <SPAN class="atn hps">"</SPAN>DEFINE <SPAN class="hps">PROJECT"</SPAN> <SPAN class="hps">to define</SPAN> <SPAN class="hps">a coordinate system</SPAN> <SPAN class="hps">to my</SPAN> <SPAN class="hps">shape file</SPAN> <SPAN class="hps">or</SPAN> <SPAN class="hps">Feature</SPAN> <SPAN class="hps">Class, </SPAN> <SPAN class="hps">and use</SPAN> <SPAN class="hps">from since <SPAN lang="en"><SPAN class="hps">right click --&gt;</SPAN></SPAN> Arc Catalog </SPAN> <SPAN class="hps">and</SPAN> <SPAN class="hps">choose one</SPAN> <SPAN class="hps">simply from the file specified</SPAN> <SPAN class="hps">.It</SPAN> <SPAN class="hps">reaches</SPAN> <SPAN class="hps">the same?</SPAN></SPAN></P></BODY></HTML> Thu, 15 Jan 2015 22:31:17 GMT https://community.esri.com/t5/geoprocessing-questions/coordinate-system-by-arc-catalog-or-geoprocessing/m-p/552168#M18266 Arturo_FranciscoAcosta_Bazán 2015-01-15T22:31:17Z Re: coordinate system by Arc Catalog or Geoprocessing tool https://community.esri.com/t5/geoprocessing-questions/coordinate-system-by-arc-catalog-or-geoprocessing/m-p/552169#M18267 <HTML><HEAD></HEAD><BODY><P>In both cases you define or assign (or replace) a coordinate system to a featureclass. The result is the same. </P><P></P><P>The tool however, allows for usage in ModelBuilder and in python scripts (and other coding languages). This way you can automatically apply a coordinate system to multiple featureclasses, while with the manual method (ArcCatalog) you will have to repeat the same process for each featureclass.</P></BODY></HTML> Thu, 15 Jan 2015 23:34:02 GMT https://community.esri.com/t5/geoprocessing-questions/coordinate-system-by-arc-catalog-or-geoprocessing/m-p/552169#M18267 XanderBakker 2015-01-15T23:34:02Z