mesh dimensioning is completely inconsistent

[guyer]

Grid2D and UniformGrid2D handle dimensions completely differently. Compare

>>> mesh = Grid2D(nx=3, dx=Variable("1 mum"), ny=1, dy=Variable("1 mum"))
>>> mesh.getCellVolumes()
array([ 1.,  1.,  1.])
>>> mesh.getCellCenters()
array([[ 0.5,  1.5,  2.5],
[ 0.5,  0.5,  0.5]])

to

>>> mesh = Grid2D(dx=3 * [Variable("1 mum")], dy=[Variable("1 mum")])
>>> mesh.getCellVolumes()
PhysicalField(array([ 1.,  1.,  1.]),'mum**2')
>>> mesh.getCellCenters()
PhysicalField(array([[ 0.5,  1.5,  2.5],
[ 0.5,  0.5,  0.5]]),'mum')

Imported from trac ticket #188, created by guyer on 04-26-2009 at 08:17, last modified: 12-11-2011 at 23:26