newtonField

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The newtonField node models Newtonian gravitational attraction
between two objects.   The force exerted is proportional to the
product of the two masses and to the magnitude, and inversely
proportional to the distance.  The minDistance parameter allows
one to turn off the field force within a certain minimum distance
of the field, so as to avoid division by zero.  For geometry
objects, each vertex/cv counts as a mass of 1.  For particles,
the field will use the mass attribute if one is present; if not,
each particle counts 1.

rigidConstraint, dynBase, field, airField, turbulenceField, radialField, vortexField, volumeAxisField, dragField, uniformField, gravityField, pointEmitter, particle, rigidBody, geoConnectable, spring

minDistance, ownerMassData

Long name (short name)	Type	Default	Flags
minDistance (min)	double	0.0
minimum distance at which field takes effect
ownerMassData (omd)	doubleArray	empty
if particle object owns this field, need mass sometiems.