Apparatus for producing building limit measurement chart, apparatus for creating building limit measurement chart data and method for creating building limit measurement chart

摘要

The distance measuring means measures the distance from the measuring point to the construction limit in the path of the railway track. The range discriminating section discriminates whether or not the measuring point falls within a predetermined range from the building limit, based on the measured distance. The ground feature determination unit determines whether or not the measurement point belongs to a feature on the ground. The drawing means draws ones in the plan view (18) which are determined as belonging to the feature on the ground by the ground feature discrimination part among the measurement points, and the drawing means discriminates that it is not belonging to the feature on the ground Draw in side view (19, 20). The drawing means performs different drawing processes on the measurement points which are determined to fall within a predetermined range from the building limit and those which are determined not to fall within the predetermined range from the building limit. As a result, it is possible to easily check whether or not there is a structure approaching or entering the building limit over a wide range of the railway track.