topic Re: Intersecting Lines and Polygons in Spatial Data Science Questions https://community.esri.com/t5/spatial-data-science-questions/intersecting-lines-and-polygons/m-p/325418#M726 <HTML><HEAD></HEAD><BODY><P>One more item you might consider: Before you perform your intersection, add a field of type Double called Length_Original (or something to that effect). Calc it to equal (wait for it...) Shape Length. </P><P></P><P>Then once you follow either Dan's or Xander's suggestion, you can figure out what percentage of the road will be under water....</P></BODY></HTML> Wed, 31 Dec 2014 13:51:09 GMT JoeBorgione 2014-12-31T13:51:09Z Intersecting Lines and Polygons https://community.esri.com/t5/spatial-data-science-questions/intersecting-lines-and-polygons/m-p/325415#M723 <HTML><HEAD></HEAD><BODY><P>Hello all, </P><P></P><P>I am having a problem with an intersection. I have intersected two shape files, one a line file of roads, and the other a polygon of flooded areas. The intersection worked correctly and only left me with the pieces of the roads that would be affected by the flood. The problem I am having is there is no field in the table that has a length of the new intersected pieces. The only lengths in the table are that of the polygon and original road lengths. I need to create a field that has the length of each small piece of road. If I have not been very clear, please let me know. Thank you for any help.</P></BODY></HTML> Wed, 31 Dec 2014 02:17:07 GMT https://community.esri.com/t5/spatial-data-science-questions/intersecting-lines-and-polygons/m-p/325415#M723 ElijahMeyer 2014-12-31T02:17:07Z Re: Intersecting Lines and Polygons https://community.esri.com/t5/spatial-data-science-questions/intersecting-lines-and-polygons/m-p/325416#M724 <HTML><HEAD></HEAD><BODY><P>You can add a new field (double type) and use <A href="http://resources.arcgis.com/en/help/main/10.2/index.html#/Calculating_area_length_and_other_geometric_properties/005s00000027000000/">calculate geometry</A>&nbsp; to get values for file.&nbsp; You can then query the table for the size parameter you want</P></BODY></HTML> Wed, 31 Dec 2014 02:31:48 GMT https://community.esri.com/t5/spatial-data-science-questions/intersecting-lines-and-polygons/m-p/325416#M724 DanPatterson_Retired 2014-12-31T02:31:48Z Re: Intersecting Lines and Polygons https://community.esri.com/t5/spatial-data-science-questions/intersecting-lines-and-polygons/m-p/325417#M725 <HTML><HEAD></HEAD><BODY><P>If you write the output to a file geodatabase the length field will be filled automatically.</P></BODY></HTML> Wed, 31 Dec 2014 04:01:51 GMT https://community.esri.com/t5/spatial-data-science-questions/intersecting-lines-and-polygons/m-p/325417#M725 XanderBakker 2014-12-31T04:01:51Z Re: Intersecting Lines and Polygons https://community.esri.com/t5/spatial-data-science-questions/intersecting-lines-and-polygons/m-p/325418#M726 <HTML><HEAD></HEAD><BODY><P>One more item you might consider: Before you perform your intersection, add a field of type Double called Length_Original (or something to that effect). Calc it to equal (wait for it...) Shape Length. </P><P></P><P>Then once you follow either Dan's or Xander's suggestion, you can figure out what percentage of the road will be under water....</P></BODY></HTML> Wed, 31 Dec 2014 13:51:09 GMT https://community.esri.com/t5/spatial-data-science-questions/intersecting-lines-and-polygons/m-p/325418#M726 JoeBorgione 2014-12-31T13:51:09Z