Needs["Rotations`OrientationalSampling`"] (SD 2.5.5)

[MichaelTayler]

When loading the sub-package OrientationsAndWeights there appears a very helpful message stating the in-built sampling sets that one can use:

Code: [Select]

Needs["Rotations`OrientationalSampling`"]

However, if one executes the above code again, the message disappears and it cannot be recovered (as far as I know) without restarting Mathematica's Kernel. 

While the list of available sampling schemes can still be obtained using

Code: [Select]

Orientations[]
it would be nice to make the message with "Needs" permanent.

[MalcolmHLevitt]

Thanks Michael,
 the message appears when the package "Rotations`OrientationalSampling`" is loaded and added to $Path. When Needs[..] is executed again, Mathematica looks to see if the package is already on $Path (and therefore loaded), and does not load again if it is there. So there is no way to force Needs[..] to regenerate the message a second time, without redefining the built-in Needs function, which might have unintended consequences, and is inadvisable. So there is no straight workaround for this.

However, as you discovered, executing or Orientations[] or OrientationsAndWeights[] will list the available orientational sampling schemes.

[MichaelTayler]

Thanks Malcolm,
Yes, that is probably too much unnecessary poking around.  A note in SD's documentation on OrientationsAndWeights should be enough.