There are cases in which you may be subsetting a field by filtering on
data, positions, etc. marking elements as invalid or you may have imported
data that way. The invalid may be time varying, but the bounding box is
not. Thus, you can have a consistent volume or area even as data within it
are changing.
Of course, not everyone will need such flexibility. Perhaps adding a
validity option to ShowBox similar to that of ShowBoundary would suffice.
David Thompson <[EMAIL PROTECTED]>@opendx.watson.ibm.com on
03/06/2003 07:38:12 PM
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Subject: [opendx-dev] DXBoundingBox and 'invalid positions'
I'm questioning the functionality of the DXBoundingBox. As documented
in the ShowBox Reference page, item 3 states "Any invalid data in
input is ignored in creating the bounding box. " I question this
functionality. The problem is, if I the user crop a huge data set
down to a much smaller set (say a corner) using Include and not cull
the data (still need the regular grid), I want the bounding box to
size to the new data not the entire data. What was the reason for
ignoring the "invalids". Is there any reason this couldn't be changed?
David
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David L. Thompson Visualization and Imagery Solutions,
Inc.
mailto:[EMAIL PROTECTED] 5515 Skyway Drive, Missoula, MT 59804
Phone : (406)756-7472
