System for calculating and visualizing a position of a buried asset during a location procedure in a target area, the system comprising: a) an electromagnetic locate device including one or more electromagnetic antennas configured for sensing an electromagnetic field emanating from the buried asset at a target area, wherein each electromagnetic antenna produces a vector field data at each periodic point in space; and b) an augmented reality system comprising a camera, a display, inertial sensors for measuring motion and distance moved, and one or more processors configured for: aa) reading camera data from the camera of a target area in which the system is situated, and reading sensor data from the inertial sensors; bb) calculating motion of the electromagnetic antennas and distance moved by the electromagnetic antennas based on the sensor data and the camera data; cc) generating a 3D model representing the electromagnetic antennas and the target area in which the system is situated, based on the camera data, and the motion and distance moved that was calculated; dd) calculating vector field values for the EM field at multiple different points in space based on the vector field data from the electromagnetic antennas; ee) placing each vector field value that was calculated in the 3D model representing the electromagnetic antennas and the target area in which the system is situated, based on the camera data, and the motion and distance moved that was calculated, thereby generating a 3D vector field representing the EM field emanating from the buried asset; ff) calculating a position of the buried asset based on the 3D vector field and the 3D model, and creating an object in the 3D model that represents the position of the buried asset; and gg) rendering video of the target area in the display, and overlaying onto said video a graphic representation of the position of the buried asset, based on the 3D model. a) an electromagnetic locate device including one or more electromagnetic antennas configured for sensing an electromagnetic field emanating from the buried asset at a target area, wherein each electromagnetic antenna produces a vector field data at each periodic point in space; and b) an augmented reality system comprising a camera, a display, inertial sensors for measuring motion and distance moved, and one or more processors configured for: aa) reading camera data from the camera of a target area in which the system is situated, and reading sensor data from the inertial sensors; bb) calculating motion of the electromagnetic antennas and distance moved by the electromagnetic antennas based on the sensor data and the camera data; cc) generating a 3D model representing the electromagnetic antennas and the target area in which the system is situated, based on the camera data, and the motion and distance moved that was calculated; dd) calculating vector field values for the EM field at multiple different points in space based on the vector field data from the electromagnetic antennas; ee) placing each vector field value that was calculated in the 3D model representing the electromagnetic antennas and the target area in which the system is situated, based on the camera data, and the motion and distance moved that was calculated, thereby generating a 3D vector field representing the EM field emanating from the buried asset; ff) calculating a position of the buried asset based on the 3D vector field and the 3D model, and creating an object in the 3D model that represents the position of the buried asset; and gg) rendering video of the target area in the display, and overlaying onto said video a graphic representation of the position of the buried asset, based on the 3D model. aa) reading camera data from the camera of a target area in which the system is situated, and reading sensor data from the inertial sensors; bb) calculating motion of the electromagnetic antennas and distance moved by the electromagnetic antennas based on the sensor data and the camera data; cc) generating a 3D model representing the electromagnetic antennas and the target area in which the system is situated, based on the camera data, and the motion and distance moved that was calculated; dd) calculating vector field values for the EM field at multiple different points in space based on the vector field data from the electromagnetic antennas; ee) placing each vector field value that was calculated in the 3D model representing the electromagnetic antennas and the target area in which the system is situated, based on the camera data, and the motion and distance moved that was calculated, thereby generating a 3D vector field representing the EM field emanating from the buried asset; ff) calculating a position of the buried asset based on the 3D vector field and the 3D model, and creating an object in the 3D model that represents the position of the buried asset; and gg) rendering video of the target area in the display, and overlaying onto said video a graphic representation of the position of the buried asset, based on the 3D model.