Method for determining the co-ordinates of a workpiece

A method for determining coordinates of a workpiece (9) fastened to a movable structure, said movable structure having a reference object fastened thereto, comprising:

• measuring, using a first coordinate measuring device (3), first coordinates of said workpiece (9) in a first coordinate system;
• measuring, using said first coordinate measuring device (3), first coordinates of said reference object;
• measuring, using a second coordinate measuring device (5), second coordinates of said workpiece (9) in a second coordinate system;
• measuring, using said second coordinate measuring device (5), second coordinates of said reference object in said second coordinate system;
• and
• determining, using said first coordinates of said reference object and said second coordinates of said reference object, a set of coordinates for said workpiece (9) including coordinate values derived from said first coordinates of said workpiece (9) and said second coordinates of said workpiece (9).

An apparatus for determining coordinates of a workpiece (9) fastened to a movable structure, said movable structure having a reference object fastened thereto, comprising:

• a first coordinate measuring device (3) for measuring first coordinates of said workpiece (9) in a first coordinate system;
• said first coordinate measuring device (3), also for measuring first coordinates of said reference object;
• a second coordinate measuring device (5), for measuring second coordinates of said workpiece (9) in a second coordinate system;
• said second coordinate measuring device (5), also for measuring second coordinates of said reference object in said second coordinate system;
• and
• a device for determining, using said first coordinates of said reference object and said second coordinates of said reference object, a set of coordinates for said workpiece (9) including coordinate values derived from said first coordinates of said workpiece (9) and said second coordinates of said workpiece (9).

A method of making an apparatus for determining coordinates of a workpiece (9) fastened to a movable structure, said movable structure having a reference object fastened thereto, comprising:

• providing a first coordinate measuring device (3) for measuring first coordinates of said workpiece (9) in a first coordinate system;
• said first coordinate measuring device (3), also for measuring first coordinates of said reference object;
• providing a second coordinate measuring device (5), for measuring second coordinates of said workpiece (9) in a second coordinate system;
• said second coordinate measuring device (5), also for measuring second coordinates of said reference object in said second coordinate system;
• and
• providing a device for determining, using said first coordinates of said reference object and said second coordinates of said reference object, a set of coordinates for said workpiece (9) including coordinate values derived from said first coordinates of said workpiece (9) and said second coordinates of said workpiece (9).