DIMENSIONAL MEASUREMENT APPARATUS

A dimensional measurement apparatus (8) comprises: a distance meter (9, 10) which measures a distance in horizontal plane; and a calculation unit (11) which identifies the position of the distance meter on the basis of the distance measured by the distance meter (9, 10) and calculates the position and orientation of each object (3, 6, 7) to be measured. The calculation unit (11) identifies the position of the distance meter on the basis of the distance between a reference line 4 and the distance meter, the distance between a reference line (5) and the distance meter, and the spacing between the reference lines (4, 5). Then, on the basis of the identified position of the distance meter and the distance to the object to be measured as measured by the distance meter, the calculation unit calculates the positions of at least two characteristic points, preset as sites to be measured, on the surface of the object to be measured and calculates the inclination between the characteristic points. 尺寸测定装置(8)具有：测距仪(9、10)，