D3DXMATRIX w1 = bone->CombinedTransformationMatrix;
D3DXMATRIX w2 = parent->CombinedTransformationMatrix;
//Extract translation
D3DXVECTOR3 thisBone = D3DXVECTOR3(w1(3, 0), w1(3, 1), w1(3, 2));
D3DXVECTOR3 ParentBone = D3DXVECTOR3(w2(3, 0), w2(3, 1), w2(3, 2));
What does the author of my book mean by extract translation???