parameter "rotx", "roty" and "rotz" apply them absolute rather than relative

[Anders Markvardsen]

All parameters apart from "rotx", "roty" and "rotz" are applied absolute rather relative, where absolute means that e.g.

<parameter name="x"> <value val="10.0" /> </parameter>

sets the x-position of a component to 10.0, and NOT moving the component by 10.0 in the x-direction relative to its existing position.

Hence make "rotx", "roty" and "rotz" to be consistent with how all other parameters work.

This also has the added benifit that if someone calls populateInstrumentParameters() multiple times this will make no difference to the end result.

[Anders Markvardsen]

(In [6355]) Make parameter "rotx", "roty" and "rotz" apply absolute rather than relative.

Wiki updated.

re #1674

[Vickie Lynch]

Put roty twice in xml file for one detector and detector was rotated correctly.

[Stuart Campbell]

This ticket has been transferred to github issue ​2521