The first method: Extract values to points tool, this online more information, it is not introduced.
The second method: the Interpolate shape tool is directly used with the arc toolbox->3d Analyst tools-> Functional surface->interpolate shape tool. You can attach a Dem's elevation value to polyline.
Executing this tool will ask you to enter a raster surface, view the attribute table after execution, and change the shape field to indicate that Z-value information has been added to these points. Then, by creating a new field, you can calculate the z-value from the field. If it is not an elevation value, you can also derive the grid value in the same way.
Third method: Add surface information tools directly with the arc toolbox->3d Analyst tools-> functional surface, add surface information tool on the line. 2015-03-2216:55:00
This tool is more convenient than the previous one, and the z-values are displayed directly in the attribute table after execution.
ArcMap obtains elevation values from a Dem