topic Creating a line shapefile with m-values in Water Resources Questions https://community.esri.com/t5/water-resources-questions/creating-a-line-shapefile-with-m-values/m-p/596878#M3961 <HTML><HEAD></HEAD><BODY><P>This is seems like an easy question to answer but for some reason I can't get the line shapefile that I've made to include m-values. I'm creating lines to map out the center of the river which I'll eventually use&nbsp; When creating the shapefile, I choose "Polyline" and check for the coordinates to include M-values. I then go about to make my line using the Editing tool, use the Smooth tool, and then use the Create Routes which should append M-values to my line shapefile. However, when I do this, it usually gives me M-values of NaN or no value at all.</P><P></P><P>How do I make it so that my line has M-values? I've also played around with my line shapefile where I've edited it so that the line is split at each vertex, and I will get a "Shape_Length" field with lengths of each segment. Are these "Shape_Length" values equivalent to M-values and used as M-values?</P><P></P><P>I'm a novice when it comes to ArcGIS so any help would be greatly appreciated</P></BODY></HTML> Thu, 19 Dec 2019 17:53:14 GMT HugoRuellan 2019-12-19T17:53:14Z Creating a line shapefile with m-values https://community.esri.com/t5/water-resources-questions/creating-a-line-shapefile-with-m-values/m-p/596878#M3961 <HTML><HEAD></HEAD><BODY><P>This is seems like an easy question to answer but for some reason I can't get the line shapefile that I've made to include m-values. I'm creating lines to map out the center of the river which I'll eventually use&nbsp; When creating the shapefile, I choose "Polyline" and check for the coordinates to include M-values. I then go about to make my line using the Editing tool, use the Smooth tool, and then use the Create Routes which should append M-values to my line shapefile. However, when I do this, it usually gives me M-values of NaN or no value at all.</P><P></P><P>How do I make it so that my line has M-values? I've also played around with my line shapefile where I've edited it so that the line is split at each vertex, and I will get a "Shape_Length" field with lengths of each segment. Are these "Shape_Length" values equivalent to M-values and used as M-values?</P><P></P><P>I'm a novice when it comes to ArcGIS so any help would be greatly appreciated</P></BODY></HTML> Thu, 19 Dec 2019 17:53:14 GMT https://community.esri.com/t5/water-resources-questions/creating-a-line-shapefile-with-m-values/m-p/596878#M3961 HugoRuellan 2019-12-19T17:53:14Z