AUTOMATIC INDICATION DEVICE OF OBSTRUCTING TREE UNDER TRANSMISSION LINES

PROBLEM TO BE SOLVED: To obtain a device for automatically indicating an obstructing tree under transmission lines, which automatically calculates and notifies of an obstructing tree around transmission lines from three-dimensional data obtained through an airplane. SOLUTION: This device is provided with a multi-window/control part 6, a set data reading/processing part 7, a processing mode determination processing part 8, a data reading part 10, a main memory 11, an image memory 12, a projection processing part 13, a three-dimensional image display processing part 14, a longitudinal drawing generation processing part 16, a cross-section generation processing part 17, a plan generation processing part 18, a transmission line-tree distance calculation processing part 19, a tree data renewal processing part 20, and the like. The height of a pylon, a tree or the like is inputted from the three-dimensional images of mountains and forests obtained through an airplane using these functions, and based on these data the distances between trees and transmission lines are found. Then, based on these distances, the trees closer to the transmission lines by a specified distance or more are displayed in different colors, depending on the degree of the distances.