NAME
	local_coord - controls a probe by means of a series of dials.

SUMMARY
	Name	local_coord
	Type	Input
	Inputs	string - template object
		string - target object

	Outputs	NONE

	Parameters
	Name		Type	Default	Choices
	X centre	real
	Y centre	real
	Z centre	real
	Degrees in XY	real
	Degrees in XZ	real
	Degrees in YZ	real
	Move new X	real
	Move new Y	real
	Move new Z	real
	Log10 Scale	real


DESCRIPTION
	
dial-based control over a probe/cropper etc

sets up a coordinate system relative to the transformation matrix of a
named object (usually "top").  Dials are used to translate the derived
origin from the parental coordinate system and also to rotate its axes.
Other dials then allow the object to be translated and rescaled within
the new coordinate system.


INPUTS
template object: name of object to provide the template coordinate system
	from which the derived (local) coordinate system is to be formed

	default setting is "top"

target object: name of object whose position etc is to be controled by 
	the derived (local) coordinate system


PARAMETERS

X centre: X translation of derived coordinates from template coordinates

Y centre: Y translation of derived coordinates from template coordinates

Z centre: Z translation of derived coordinates from template coordinates

Degrees in XY: rotation in degrees in XY plane (about Z axis) of template
	coordinate system to specify the orientation of the derived 
	coordinate system.

Degrees in XZ: rotation in degrees in XZ plane (about Y axis) of template
	coordinate system to specify the orientation of the derived 
	coordinate system.

Degrees in XY: rotation in degrees in YZ plane (about X axis) of template
	coordinate system to specify the orientation of the derived 
	coordinate system.

Move new X: X" translation of the geometry within the derived coordinates.

Move new Y: Y" translation of the geometry within the derived coordinates.

Move new Z: Z" translation of the geometry within the derived coordinates.

Log10 Scale: scale the probe / cropper within the new coordinate system.
	(This is the logarithm of the desired rescaling.)