In OpenDX, data components can either be dependent on (that is, in a 1-1
relationship with) either the vertices, in the "positions" component, or on
the grid cells, in the "connections" component.  Positions dependency
implies that the values are to be interpolated across the cells;
connections dependency implies that the value is held constant across the
cell.   One way to transform positions-dependent data to connections
dependency is to use Post(..., "connections"), which will average the
values at the vertices of each cell to derive a value for the cell.  If you
want a specific corner, there are ways to get it, but I bet the Post result
is what you want.

Greg


Eelco Van Vliet <[EMAIL PROTECTED]>@opendx.watson.ibm.com on
02/28/2002 12:39:52 PM

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Subject:    [opendx-users] Colormap




Is it possible to 'switch' off the interpolation for positiion dependent
data when coloring the data, and instead take for instance the value
of one corner of a grid cell

I don't want to use the 'Band' module, since then the positions are
alterated.

Eelco



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