Patent ID: 7433799

Claim:
A method for determining shape data for a blade, to effect a repair of the blade, the blade comprising at least a first portion and the shape data to be determined for a damaged portion of the blade, the method comprising: providing shape data of the first portion of the blade; providing shape data of a first template portion and a second template portion of a reference template, the first template portion corresponding to the first portion of the blade, and the second template portion corresponding to the damaged portion of the blade, the second template portion having a shape related to the shape to be determined for the damaged portion of the blade; calculating a first set of offsets, between the shape data of the first and second template portions of the reference template; calculating a second set of offsets, within the shape data of the first portion of the reference template, and a third set of offsets, within the shape data of the first portion of the blade; and using the second and third sets of offsets, together with the first set of offsets and the shape data of the first portion of the blade to determine the shape data of the damaged portion of the blade.