[Paraview] Trouble with "information_only" GUI property in paraview filter

[Alex Rattner]

Hi Yumin,

Thank you for the response. I tried this and still no luck, the property 
still won't appear. For reference, my new xml was

<IntVectorProperty
    name="NumberOfFeatures"
    label="Num Features"
    command="GetNumFeatures"
    number_of_elements="1"
    default_values="0"
    information_only="1"
    show="1">
<Documentation>
       Number of features in the field.
</Documentation>
</IntVectorProperty>

I'm pretty sure that the property is actually being made and called, 
because I debugged paraview and found that the GetNumFeatures method was 
being called. It just seems that the property isn't being displayed. 
Could this really be a bug in paraview?

Thanks,
Alex


On 06/08/2012 01:22 PM, Yumin Yuan wrote:
> Hi Alex,
>
> You can add the following to your xml to see if it helps.
>
> show="1"
>
> If this property does show up after adding that, it should be
> displayed as disabled since it is read-only. If it does not help, this
> could be a bug.
>
> Yumin
>
> On Fri, Jun 8, 2012 at 2:40 PM, Alex Rattner<Alex.Rattner at gatech.edu>  wrote:
>> Hello,
>>
>> I have been developing a feature tracking filter plug-in for paraview for a
>> couple weeks. I am currently trying to improve the plug-in GUI, but ran into
>> an issue.
>>
>> I want the plug-in to return some basic information to the user in the GUI,
>> so I added a property to the server xml file like:
>>
>> <IntVectorProperty
>>    name="NumberOfFeatures"
>>    label="Number Of Features"
>>    command="GetNumFeatures"
>>    number_of_elements="1"
>>    default_values="0"
>>    information_only="1">
>> <Documentation>
>>       Number of features in the field.
>> </Documentation>
>> </IntVectorProperty>
>>
>> with corresponding code in the class definition:
>> vtkGetMacro(NumFeatures, int);
>>
>> However, the property does not appear on the plug-in gui. Similar "input"
>> GUI properties work fine,  but I've been messing around for a couple hours
>> and I cannot get this "output" GUI property to appear. Is this specific to
>> the "filters" ProxyGroup - because I have found other plug-ins that use
>> essentially the same xml code to output information? Do you have any
>> suggestions on how to make such output properties display and work?
>>
>> Thanks,
>> Alex
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