topic Re: Update/Add Z values for the vertices of a polyline - How to? in Python Questions https://community.esri.com/t5/python-questions/update-add-z-values-for-the-vertices-of-a-polyline/m-p/486517#M37968 <HTML><HEAD></HEAD><BODY><SPAN>The old example is as simple as it gets. 8-) You need to define a new featureclass that is Z-aware so that you can iterate through the features, parts, vertices to extract the coordinates and then roll back the process to create new features from arrays.</SPAN><BR /><BR /><SPAN>If you have x,y,z points then the easiest way would be to use the tool PointsToLine to rebuild a series of lines.</SPAN></BODY></HTML> Mon, 30 Jul 2012 04:53:16 GMT KimOllivier 2012-07-30T04:53:16Z Update/Add Z values for the vertices of a polyline - How to? https://community.esri.com/t5/python-questions/update-add-z-values-for-the-vertices-of-a-polyline/m-p/486516#M37967 <HTML><HEAD></HEAD><BODY><SPAN>For creating a polyline feature class from xy coordinates, I�??m able to follow the example python script given at the ArcGIS 10 help library...</SPAN><A href="http://help.arcgis.com/en/arcgisdesktop/10.0/help/index.html#/Writing_geometries/002z0000001v000000/">Writing Geometries</A><SPAN>.</SPAN><BR /><BR /><SPAN>I want to take this a step further. Assuming an existing polyline feature class has the ability to store Z values in the geometry field, how one would craft a python script to iterate the vertices of the polylines and add/update Z values to them.</SPAN><BR /><BR /><SPAN>As I understand it, the process would involve using the UpdateCursor and InsertCursor at the same time.&nbsp; I have found an </SPAN><A href="http://forums.esri.com/Thread.asp?c=93&amp;f=1729&amp;t=206791#621987">old example</A><SPAN> but I'm struggling to make sense of it.</SPAN><BR /><BR /><SPAN>Can anyone provide a very simple Python example that demonstrates how this could be done under an ArcGIS 10.x platform?&nbsp;&nbsp; I just need a simple example that explains the basic concepts and steps involved.</SPAN><BR /><BR /><SPAN>Regards,</SPAN><BR /><BR /><SPAN>Tony G</SPAN></BODY></HTML> Sun, 29 Jul 2012 06:11:21 GMT https://community.esri.com/t5/python-questions/update-add-z-values-for-the-vertices-of-a-polyline/m-p/486516#M37967 AnthonyGangemi 2012-07-29T06:11:21Z Re: Update/Add Z values for the vertices of a polyline - How to? https://community.esri.com/t5/python-questions/update-add-z-values-for-the-vertices-of-a-polyline/m-p/486517#M37968 <HTML><HEAD></HEAD><BODY><SPAN>The old example is as simple as it gets. 8-) You need to define a new featureclass that is Z-aware so that you can iterate through the features, parts, vertices to extract the coordinates and then roll back the process to create new features from arrays.</SPAN><BR /><BR /><SPAN>If you have x,y,z points then the easiest way would be to use the tool PointsToLine to rebuild a series of lines.</SPAN></BODY></HTML> Mon, 30 Jul 2012 04:53:16 GMT https://community.esri.com/t5/python-questions/update-add-z-values-for-the-vertices-of-a-polyline/m-p/486517#M37968 KimOllivier 2012-07-30T04:53:16Z