ENH: Improved planar AMR Box construction
ENH: Improved planar AMR Box construction

Correctly set the 3rd dimension of axis-aligned
planar AMR boxes.

The 3rd dimension now is correctly set for XY, YZ, XZ
planes. Previously it was defaulting to 0, but now it
is computed as:

 lo[q] = hi[q] = round( (gridOrigin[q]-origin[q])/h[q] );

where q is the index of the 3rd dimension, q in [0,2],
i.e., XY => q=2,  YZ => q=0, XZ => q=1. gridOrigin is the
origin of the grid whose AMR box is computed, origin is the
global dataset origin, and h[q] corresponds to the spacing
vector in the given dimension, q.

demarle/VTK,biddisco/VTK,ashray/VTK-EVM,SimVascular/VTK,candy7393/VTK,aashish24/VTK-old,candy7393/VTK,aashish24/VTK-old,collects/VTK,biddisco/VTK,jmerkow/VTK,ashray/VTK-EVM,demarle/VTK,aashish24/VTK-old,candy7393/VTK,hendradarwin/VTK,candy7393/VTK,biddisco/VTK,mspark93/VTK,jmerkow/VTK,sumedhasingla/VTK,gram526/VTK,gram526/VTK,jmerkow/VTK,sumedhasingla/VTK,msmolens/VTK,keithroe/vtkoptix,candy7393/VTK,sankhesh/VTK,jmerkow/VTK,sankhesh/VTK,keithroe/vtkoptix,msmolens/VTK,SimVascular/VTK,aashish24/VTK-old,SimVascular/VTK,msmolens/VTK,keithroe/vtkoptix,keithroe/vtkoptix,hendradarwin/VTK,mspark93/VTK,johnkit/vtk-dev,hendradarwin/VTK,jmerkow/VTK,berendkleinhaneveld/VTK,mspark93/VTK,collects/VTK,berendkleinhaneveld/VTK,sankhesh/VTK,sumedhasingla/VTK,mspark93/VTK,collects/VTK,SimVascular/VTK,cjh1/VTK,berendkleinhaneveld/VTK,johnkit/vtk-dev,johnkit/vtk-dev,gram526/VTK,johnkit/vtk-dev,sankhesh/VTK,gram526/VTK,SimVascular/VTK,keithroe/vtkoptix,johnkit/vtk-dev,biddisco/VTK,collects/VTK,msmolens/VTK,cjh1/VTK,keithroe/vtkoptix,demarle/VTK,candy7393/VTK,SimVascular/VTK,aashish24/VTK-old,mspark93/VTK,ashray/VTK-EVM,cjh1/VTK,demarle/VTK,gram526/VTK,demarle/VTK,biddisco/VTK,collects/VTK,candy7393/VTK,demarle/VTK,SimVascular/VTK,sankhesh/VTK,sankhesh/VTK,hendradarwin/VTK,berendkleinhaneveld/VTK,sumedhasingla/VTK,msmolens/VTK,ashray/VTK-EVM,mspark93/VTK,ashray/VTK-EVM,keithroe/vtkoptix,ashray/VTK-EVM,hendradarwin/VTK,biddisco/VTK,candy7393/VTK,sankhesh/VTK,johnkit/vtk-dev,keithroe/vtkoptix,berendkleinhaneveld/VTK,hendradarwin/VTK,aashish24/VTK-old,gram526/VTK,jmerkow/VTK,sumedhasingla/VTK,cjh1/VTK,cjh1/VTK,ashray/VTK-EVM,demarle/VTK,jmerkow/VTK,demarle/VTK,sumedhasingla/VTK,gram526/VTK,mspark93/VTK,berendkleinhaneveld/VTK,ashray/VTK-EVM,gram526/VTK,berendkleinhaneveld/VTK,mspark93/VTK,msmolens/VTK,msmolens/VTK,jmerkow/VTK,biddisco/VTK,collects/VTK,cjh1/VTK,SimVascular/VTK,sumedhasingla/VTK,johnkit/vtk-dev,sumedhasingla/VTK,sankhesh/VTK,hendradarwin/VTK,msmolens/VTK