-----Original Message-----
From: [EMAIL PROTECTED] [mailto:paraview-
[EMAIL PROTECTED] On Behalf Of Takuya OSHIMA
Sent: Tuesday, July 29, 2008 3:12 PM
To: [email protected]
Subject: Re: [Paraview] "had to make up a value for selection": what
am I doing wrong?
Hi ParaView developers,
As I got no answer so far from the list, I did some digging with a
debugger. As a result it's looking more like a bug in ParaView, but
I'm not confident yet. So far what I found are threefold:
1. If I revert the following modification to
pqSignalAdaptorSelectionTreeWidget.cxx on 2008-07-02
Index: pqSignalAdaptorSelectionTreeWidget.cxx
===================================================================
RCS file:
/cvsroot/ParaView3/ParaView3/Qt/Components/pqSignalAdaptorSelectionTre
eWidget.cxx,v
retrieving revision 1.6
retrieving revision 1.7
diff -r1.6 -r1.7
187,188c187,190
<
< this->Internal->Property->ResetToDefault();
---
// Domain changes should not change the property values. This is
overriding
// the value loaded from state files etc.
// this->Internal->Property->ResetToDefault();
, the "had to make up a value" message disappeared and reader worked
as expected. This coincides with my thought that the problem started
at around a month ago.
2. After doing AddArray() to the selection object in the reader,
ParaView does seem to recognize the newly added item, since in
void vtkSMArraySelectionInformationHelper::UpdateProperty(
vtkIdType connectionId, int serverIds, vtkClientServerID objectId,
vtkSMProperty* prop)
numArrays turned out to have the expected number of arrays, and the
results of GetArgument() were precisely expected values. I could
confirm the new item is added to prop (the last argument in the
function prototype above) through SetElement(). The address prop
pointed to was 0x078c5b38 in the tracked case.
3. However, when
void pqSignalAdaptorSelectionTreeWidget::domainChanged()
was executed later, the address this->Internal->Property pointed to
was 0x078cd688, which was different from what prop pointed
to. Naturally, the object this->Internal->Property pointed to did not
contain the new item. Thus the missing item triggered the "had to make
up
a value" message in
QList<QVariant> pqSMAdaptor::getSelectionProperty(vtkSMProperty*
Property, unsigned int Index).
So my question after all is, where and why has prop (the object at
0x078c5b38) gone? Even with a debugger, tracking what had been going
on behind 100+ call tree stack was simply out of my skill range. Can
you comment if this behavior is expected, or a bug?
Thanks,
Takuya
Takuya OSHIMA, Ph.D.
Faculty of Engineering, Niigata University
8050 Ikarashi-Ninocho, Nishi-ku, Niigata, 950-2181, JAPAN
From: Takuya OSHIMA <[EMAIL PROTECTED]>
Subject: [Paraview] "had to make up a value for selection": what am I
doing wrong?
Date: Fri, 25 Jul 2008 13:48:28 +0900 (JST)
Hi,
My reader for the latest CVS head has a selection list within its UI
panel associated with its corresponding vtkDataArraySelection
object,
as shown below in its XML representation. The selection list is
initialized when RequestInformation() is called for the first time,
and works perfectly as long as the contents of the list remain
unchanged.
However if the reader try to add items to the selection list later
within RequestData(), the newly added items always appear unchecked
in
the UI panel regardless of the status in its corresponding
vtkDataArraySelection, and messages saying "had to make up a value
for
selection" are shown in the output window a number of times equal to
the number of items added.
If I remember correctly this piece of code worked fine until rather
recent CVS (within a month or so, but not so sure).
What am I doing wrong?
<StringVectorProperty
name="CellArrayInfo"
information_only="1">
<ArraySelectionInformationHelper attribute_name="Cell"/>
</StringVectorProperty>
<StringVectorProperty
name="CellArrays"
command="SetCellArrayStatus"
number_of_elements="0"
repeat_command="1"
number_of_elements_per_command="2"
element_types="2 0"
information_property="CellArrayInfo">
<ArraySelectionDomain name="array_list">
<RequiredProperties>
<Property name="CellArrayInfo"
function="ArrayList"/>
</RequiredProperties>
</ArraySelectionDomain>
</StringVectorProperty>
Takuya OSHIMA, Ph.D.
Faculty of Engineering, Niigata University
8050 Ikarashi-Ninocho, Nishi-ku, Niigata, 950-2181, JAPAN
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