I though that the equations for transformation were:
XG=xp*a1+yp*b1+zp*c1-d1
YG=xp*a2+yp*b2+zp*c2-d2
ZG=xp*a3+yp*b3+zp*c3-d3
XG,YG,ZG are final coord in Global system
a1,b1,c1,a2,b2,c2 and a3,b3,c3 in simple terms are the xprime, yprime, zprime direction vectors for the x,y,z axes in the local(prime) system and d1,d2,d3 are the distances from the primary origain to the global origin? when I calculate using these values, not getting the answer that I should. What am I doing wrong? Sid Kraft

Question

I though that the equations for transformation were:
XG=xp*a1+yp*b1+zp*c1-d1
YG=xp*a2+yp*b2+zp*c2-d2
ZG=xp*a3+yp*b3+zp*c3-d3
XG,YG,ZG are final coord in Global system
a1,b1,c1,a2,b2,c2 and a3,b3,c3 in simple terms are the xprime, yprime, zprime direction vectors for the x,y,z axes in the local(prime) system and d1,d2,d3 are the distances from the primary origain to the global origin? when I calculate using these values, not getting the answer that I should. What am I doing wrong? Sid Kraft