Patent ID: 7177016

Claim:
An electronic surveying apparatus, comprising: a storing portion configured to store positional data of a surveying apparatus body and design data as construction-related data; an angle-measuring portion configured to measure an aimed direction relative to a reference direction; an arithmetic processing portion configured to obtain a model of an expected arrangement at completion of an object which is expected to be seen from a position of the surveying apparatus body in the aimed direction by calculation, based on the aimed direction measured by the angle-measuring portion, said design data and the positional data of the surveying apparatus body; and a displaying portion configured to display said model of the expected arrangement at completion of the object obtained by the calculation with the arithmetic processing portion, wherein said arithmetic processing portion is configured to display, according to a change in the aimed direction, said model of the expected arrangement at completion of the object relative to the changed aimed direction on the displaying portion based on detection of said angle-measuring portion.