Use Select("ElementGroup_A") after Import to get one field, then Mark("datatype01") to be the "data" which is what Include looks at, or send the field through a Compute to modify "data" prior to Include. Include only does contiguous ranges, but with some effort, Compute can cast all the bad boys to -99 then Include(min=something higher than -99) will knock them out. Ex. Compute: (a<5.2) || (a>10.9 && a<= 11.2) ? -99.0 : a
If you only do visual realizations of connections (ShowConnections, surface rendering, etc.) you won't see the positions that don't have data.
If you are trying to knock out positions based on spatial location, that's in the opendx-users mail list archive: been discussed before.
On Wednesday, Jun 11, 2003, at 11:45 America/New_York, Peter Connolly wrote:
Dear All_______________________________
I'm clearly missing something on how to ignore certain positions within my data.
In an imported FE grid, I have one "positions" component and multiple data at each position. Each data type is assigned their own component. I then have several groups of elements in separate connection components. I make a group for each set of connections from the data,positions and appropriate connections components
I need to select data for only a sub-set of all available groups and thus need to extract only those positions used by the group I have selected (or invalidate all those at unused locations).
Unfortunately, I haven't yet found the path to enlightenment.
Thanks
Peter
PS, my data file look like:
object 1 : all positions
object datatype01 : 1st data set at positions in object1
object datatype02 : 2nd data set at positions in object1
etc.
object 2 : connections for elementgroup_A
object 3 : connections for elementgroup_B
etc.
object "ElementGroup_A" class field
component "positions" value 1
component "datatype01" value "datatype01"
component "datatype02" value "datatype02"
component "connections" value 2
etc..
#
object "ElementGroup_A" class field
component "positions" value 1
component "datatype01" value "datatype01"
component "datatype02" value "datatype02"
component "connections" value 3
etc..
#
object "default" class group
member "Elements_A" value "ElementGroup_A"
member "Elements_B" value "ElementGroup_B"
attribute "name" string "default"
Chris Pelkie
Scientific Visualization Producer
622 Rhodes Hall, Cornell Theory Center
Ithaca, NY 14853
