| 摘要 |
PURPOSE: To provide an absolute deformation degree estimating method by which the same evaluation can be obtained if a deformed shape is the same and a deformed condition can be easily grasped in essence. CONSTITUTION: From coordinates of a point A, a point B, and a point C, a formula for a regression plane is found by a least square method, and then, minimum distancesδA, -δB,δC from the respective points A, B, C to the regression plane are found. IfδC is assumed to be larger thanδA, a closer resemblance to a plane is accomplished when a total of an absolute value for the maximum value on the (-) side and the maximum value on the (+) side is smaller, and it is evaluated that the degree of deformation is small.
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