topic Re: Modelbuilder in ArcGIS 10 in Geoprocessing Questions https://community.esri.com/t5/geoprocessing-questions/modelbuilder-in-arcgis-10/m-p/206797#M7070 <HTML><HEAD></HEAD><BODY><BLOCKQUOTE class="jive-quote">Hi all<BR /> I got a problem when I want to make a modelbulider in ArcGIS 10. <BR /><BR /> The thing is that: I have a polyline shp file with length field in attribute table (havent been calculated so they are value 0 now). Now I have no idea how can I make a function to calculate geometry in modelbuilder(I knew how to calculate manually by just right-clicking field and choose calculate geometry). I tried to serarch Calculate geometry in toolbox but there was anything.<BR /><BR />I know I can also do this manually but my project is quite big. In this case, it would be a good idea to create complete model to process everything.<BR /><BR />Could someone help me to solve? or if there is any other way works well.<BR /><BR />I would be much appreciate if anyone can help me.</BLOCKQUOTE><BR /><SPAN> </SPAN><BR /><SPAN>You have to use python in the field calculator.&nbsp; The basic operations are listed </SPAN><A href="http://resources.arcgis.com/en/help/main/10.2/index.html#//005s0000002m000000">here under the Geometry Unit Conversion section</A><SPAN>.&nbsp; The basic syntax for filling in length from lines is:</SPAN><BR /><BR /><SPAN>!shape.length!</SPAN><BR /><BR /><SPAN>You can convert units with expressions like:</SPAN><BR /><BR /><SPAN>!shape.length@yards!</SPAN></BODY></HTML> Tue, 17 Jun 2014 13:08:34 GMT RichardFairhurst 2014-06-17T13:08:34Z Modelbuilder in ArcGIS 10 https://community.esri.com/t5/geoprocessing-questions/modelbuilder-in-arcgis-10/m-p/206796#M7069 <HTML><HEAD></HEAD><BODY><SPAN>Hi all</SPAN><BR /><SPAN> I got a problem when I want to make a modelbulider in ArcGIS 10. </SPAN><BR /><BR /><SPAN> The thing is that: I have a polyline shp file with length field in attribute table (havent been calculated so they are value 0 now). Now I have no idea how can I make a function to calculate geometry in modelbuilder(I knew how to calculate manually by just right-clicking field and choose calculate geometry). I tried to serarch Calculate geometry in toolbox but there was anything.</SPAN><BR /><BR /><SPAN>I know I can also do this manually but my project is quite big. In this case, it would be a good idea to create complete model to process everything.</SPAN><BR /><BR /><SPAN>Could someone help me to solve? or if there is any other way works well.</SPAN><BR /><BR /><SPAN>I would be much appreciate if anyone can help me.</SPAN></BODY></HTML> Tue, 17 Jun 2014 11:30:59 GMT https://community.esri.com/t5/geoprocessing-questions/modelbuilder-in-arcgis-10/m-p/206796#M7069 wusirui 2014-06-17T11:30:59Z Re: Modelbuilder in ArcGIS 10 https://community.esri.com/t5/geoprocessing-questions/modelbuilder-in-arcgis-10/m-p/206797#M7070 <HTML><HEAD></HEAD><BODY><BLOCKQUOTE class="jive-quote">Hi all<BR /> I got a problem when I want to make a modelbulider in ArcGIS 10. <BR /><BR /> The thing is that: I have a polyline shp file with length field in attribute table (havent been calculated so they are value 0 now). Now I have no idea how can I make a function to calculate geometry in modelbuilder(I knew how to calculate manually by just right-clicking field and choose calculate geometry). I tried to serarch Calculate geometry in toolbox but there was anything.<BR /><BR />I know I can also do this manually but my project is quite big. In this case, it would be a good idea to create complete model to process everything.<BR /><BR />Could someone help me to solve? or if there is any other way works well.<BR /><BR />I would be much appreciate if anyone can help me.</BLOCKQUOTE><BR /><SPAN> </SPAN><BR /><SPAN>You have to use python in the field calculator.&nbsp; The basic operations are listed </SPAN><A href="http://resources.arcgis.com/en/help/main/10.2/index.html#//005s0000002m000000">here under the Geometry Unit Conversion section</A><SPAN>.&nbsp; The basic syntax for filling in length from lines is:</SPAN><BR /><BR /><SPAN>!shape.length!</SPAN><BR /><BR /><SPAN>You can convert units with expressions like:</SPAN><BR /><BR /><SPAN>!shape.length@yards!</SPAN></BODY></HTML> Tue, 17 Jun 2014 13:08:34 GMT https://community.esri.com/t5/geoprocessing-questions/modelbuilder-in-arcgis-10/m-p/206797#M7070 RichardFairhurst 2014-06-17T13:08:34Z