Transformation of the data

Hello everyone!

Anyone aware of a code that would let me perform 'transformation from transnational (e.g. X, Y, Z) data at 3 separate location into translation & rotational data (e.g. X, Y, Z, Rx, Ry, Rz) at new 4th location'?

Please let me know!

Thanks in advance!

[Walter Roberson]

What is the input? A set of initial X, Y, Z, and a set of corresponding destination X, Y, Z in the same order, and you want to calculate the rotation matrix that fits that the best under the assumption of a rigid transformation ? Or a set of initial X, Y, Z, and a set of destination X, Y, Z in a possibly different order (such as if you are trying to align two point clouds) ?

[Amit Trivedi]

Thanks for input!

Yes, I have acceleration time history in X, Y, Z at 3 different location. I want to transform that to one single point with X, Y, Z, Rx, Ry, Rz as set of output time history under the assumption of rigid transformation.

For example, point A, point B, point C - each having acceleration in X, Y, Z - this will be input

Output needs to be at point D acceleration in X, Y, Z, and Rx, Ry, and Rz

[Walter Roberson]

The inputs are accelerations rather than spatial coordinates? Working from acceleration data to final spatial coordinates is notoriously difficult to do well, as small noise in the acceleration readings can make large differences to the output.

[Amit Trivedi]

Sorry for confusion.

Input points (A, B, and C) and output point (D) all have the coordinates.

The transformation needs to happen for the acceleration that exist at points A, B, and C to point D