Object amount calculation apparatus and object amount calculation method

An object amount calculation method, comprising:

• obtaining a first three-dimensional model and a second three-dimensional model different from the first three-dimensional model, each of the first three-dimensional model and the second three-dimensional model representing a same space, each of the first three-dimensional model and the second three-dimensional model being constituted with regions each having an attribute;
• receiving, by a user interface, an operation selecting, among at least two attributes of each of the first three-dimensional model and the second three-dimensional model, an attribute having higher priority than another attribute;
• aligning the first three-dimensional model and the second three-dimensional model based on the attribute selected by the operation;
• calculating a difference between the first three-dimensional model and the second three-dimensional model which are aligned in the aligning;
• and
• outputting and an attribute corresponding to the difference among the at least two attributes.

A non-transitory computer-readable recording medium for use in a computer, the recording medium having a computer program recorded thereon for causing the computer to execute an object amount calculation method including:

• obtaining a first three-dimensional model and a second three-dimensional model different from the first three-dimensional model, each of the first three-dimensional model and the second three-dimensional model representing a same space, each of the first three-dimensional model and the second three-dimensional model being constituted with regions each having an attribute;
• receiving, by a user interface, an operation selecting, among at least two attributes of each of the first three-dimensional model and the second three-dimensional model, an attribute having higher priority than another attribute;
• aligning the first three-dimensional model and the second three-dimensional model based on the attribute selected by the operation;
• calculating a difference between the first three-dimensional model and the second three-dimensional model which are aligned in the aligning;
• and
• outputting an amount of the difference and an attribute corresponding to the difference among the at least two attributes.