section g of routines in slice3.i

functions in slice3.i - g

getc3


    getc3(i, m3, chunk)  
 or getc3(i, m3, clist, l, u, fsl, fsu, cells)  


return cell values of the Ith function attached to 3D mesh M3  
for cells in the specified CHUNK.  The CHUNK may be a list of  
cell indices, in which case getc3 returns a (dimsof(CHUNK))  
list of vertex coordinates.  CHUNK may also be a mesh-specific data  
structure used in the slice3 routine, in which case getc3 may  
return a (ni)x(nj)x(nk) array of vertex values.  There is no  
savings in the amount of data for such a CHUNK, but the gather  
operation is cheaper than a general list of cell indices.  
Use getc3 when writing colorng functions for slice3.  
If CHUNK is a CLIST, the additional arguments L, U, FSL, and FSU  
are vertex index lists which override the CLIST if the Ith attached  
function is defined on mesh vertices.  L and U are index lists into  
the 2x2x2x(dimsof(CLIST)) vertex value array, say vva, and FSL  
and FSU are corresponding interpolation coefficients; the zone  
centered value is computed as a weighted average of involving these  
coefficients.  The CELLS argument is required by histogram to do  
the averaging.  See the source code for details.  
By default, this conversion (if necessary) is done by averaging  
the eight vertex-centered values.  
Interpreted function, defined at i/slice3.i   line 725

SEE ALSO: slice3, mesh3, getv3, xyz3

getc3_rect


    getc3_rect  


  
     Interpreted function, defined at i/slice3.i   line 756

getv3


    getv3(i, m3, chunk)  


return vertex values of the Ith function attached to 3D mesh M3  
for cells in the specified CHUNK.  The CHUNK may be a list of  
cell indices, in which case getv3 returns a 2x2x2x(dimsof(CHUNK))  
list of vertex coordinates.  CHUNK may also be a mesh-specific data  
structure used in the slice3 routine, in which case getv3 may  
return a (ni)x(nj)x(nk) array of vertex values.  For meshes which  
are logically rectangular or consist of several rectangular  
patches, this is up to 8 times less data, with a concomitant  
performance advantage.  Use getv3 when writing slicing functions  
for slice3.  
Interpreted function, defined at i/slice3.i   line 688