Thanks for the info! However I am sorry to tell you that this selection
query does not do its job. When I choose to select points with Region ID
6,23 then it selects all points with region ID 0. It works if I say 6
and 23 seperately (one at a time), but this way I cannot select both
simultaneously. Also, the selection in general behaves strange. It seems
to have a few glitches, I could reproduce this:
1) Have your objects in a 3D view and don't select anything. Then split
your view and start a spreadsheet view. Select points in your 3D and
switch back to spreadsheet view. Selection is gone.
2) In the 3D view and select some points. Open up a spreadsheet view.
Switch between those two Views. Selection is gone.
3) When switching and selecting new points, then the spreadsheet does
not always show the newly selected points. If it does, then some
previously shown points are not listed anymore. In particular it listed
only those points up to ID X where X is the RegionID of the newly
selected points. I have to switch between "show all" and "show selected"
to make the spreadsheet list all points again.
This is for a very recent (maybe two days old) cvs version.
Best regards,
Chrisian
Eric E. Monson wrote:
Hey Christian,
There is also the new Find Data functionality in ParaView CVS that Utkarsh
informed us about recently:
http://www.paraview.org/Wiki/Find_Data_using_Queries
One of the choices there is "is one of", which takes a comma-separated list of
attributes. So if you know the Region ID of the pieces you want, you can just list them there and
"Run Selection" to grab them. It's maybe not as nice as just clicking, but it might do
the trick.
Talk to you later,
-Eric
------------------------------------------------------
Eric E Monson
Duke Visualization Technology Group
On Mar 28, 2010, at 7:12 AM, Christian Werner wrote:
I just found out that the desired functionality IS there (multiselect with
Ctrl). It just doesn't work with the frustum selection. Maybe this could be
accomplished, too? Anyway I am fine for the moment.
Put together there remains this wishlist: Selection of cells by connectivity
(select all cells with same RegionID with one click)
Multiselect with
Frustum
Multiselect with new
RegionID Selection feature ... :)
Best regards,
Christian
Christian Werner wrote:
Hi David,
thanks for your suggestion. The Threshold may help in the occluding scenario,
but I am mainly looking for a way to extract several objects which might have
completely different IDs, e.g. 2,10 and 137. Multiple selection would help here
very much! For what I am doing it would perfectly suffice if I could just
select one point per object on mulitple objects and only extract those points.
Somehow I have the feeling that this was possible in 3.6. I will try that.
Best regards,
Christian
David Doria wrote:
On Sat, Mar 27, 2010 at 7:23 PM, Christian Werner <[email protected]
<mailto:[email protected]>> wrote:
Hello!
I like the selection/spreadsheet combination. It helps you analyse
your data alot. However in my case, I'd like to select several
distinct cells in the 3D view by pressing the CTRL key, like in
the spreadsheet view. This would save me a lot of time since I
have to manually cut out (or extract the invers of) several
unwanted objects out of my data.
Also, I would like to know if there is a way to select all cells
belonging to one object (by connectivity). This would help in
situations where different objects occlude each other. I have
attached an image that explains the situation. In this case it is
difficult to select the red object - parts of the green object
which lies behind the red one are selected, too. I have data that
will yield a lot more different objects. This will make the
selection pretty hard.
Multiple selection would already help here, in that I could
subsequently mark an object's cells from different viewpoints
until I have captured it completely.
The data is the result a Contour filter with a Connectivity filter
applied afterwards.
Best regards,
Christian
The ctrl+click selection would also help my group quite a bit. We typically
export and use Blender for these operations - it would be nice to stay in
Paraview.
Christian,
The Connectivity filter produces a "RegionId" array. You could use a Threshold filter on
the RegionId to select the object you want. It would be nice if this could be wrapped into the
"select connected object" filter that you are talking about.
Thanks,
David
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