[Paraview-developers] Selecting blocks from drop down list
Jorge Bañuls
jorgebanuls at gmail.com
Fri Jul 15 11:31:57 EDT 2016
I've tried to implement the property in this way:
<IntVectorProperty clean_command="RemoveAllIndices"
command="AddIndex"
name="BlockIndices"
number_of_elements_per_command="1"
panel_visibility="default"
repeat_command="1">
<CompositeTreeDomain mode="all"
name="tree">
<RequiredProperties>
<Property function="Input"
name="Input" />
</RequiredProperties>
</CompositeTreeDomain>
<Documentation></Documentation>
</IntVectorProperty>
but I get the following error:
ERROR: In
M:\b\paraview\src\paraview\ParaViewCore\ServerImplementation\Core\vtkPVSessionCore.cxx,
line 390
vtkPVSessionCore (00000000035C2B60): Object type:
vtkPythonProgrammableFilter, could not find requested method:
"RemoveAllIndices"
or the method was called with incorrect arguments.
while processing
Message 0 = Invoke
Argument 0 = vtk_object_pointer {vtkPythonProgrammableFilter
(000000000B5222A0)}
Argument 1 = string_value {RemoveAllIndices}
ERROR: In
M:\b\paraview\src\paraview\ParaViewCore\ServerImplementation\Core\vtkPVSessionCore.cxx,
line 391
vtkPVSessionCore (00000000035C2B60): Aborting execution for debugging
purposes.
ERROR: In
M:\b\paraview\src\paraview\ParaViewCore\ServerImplementation\Core\vtkSIProxy.cxx,
line 134
vtkSISourceProxy (000000000B4FDA70): Error pushing property state:
BlockIndices
if I omit clean_command="RemoveAllIndices", then the error appears for
command="AddIndex". I've tried to use other commands, such as SetParameter
or AddParameter, but no combination seems to work.
On 15 July 2016 at 12:27, Andy Bauer <andy.bauer at kitware.com> wrote:
> In ./ParaViewCore/ServerManager/SMApplication/Resources/filters.xml in the
> source code there's the following section which gives the options and GUI
> layout:
> <SourceProxy class="vtkExtractBlock"
> label="Extract Block"
> name="ExtractBlock">
> <Documentation long_help="This filter extracts a range of blocks
> from a multiblock dataset."
> short_help="Extract block.">This filter extracts a
> range
> of groups from a multiblock dataset</Documentation>
> <InputProperty command="SetInputConnection"
> name="Input">
> <ProxyGroupDomain name="groups">
> <Group name="sources" />
> <Group name="filters" />
> </ProxyGroupDomain>
> <DataTypeDomain name="input_type">
> <DataType value="vtkMultiBlockDataSet" />
> </DataTypeDomain>
> <Documentation>This property specifies the input to the Extract
> Group
> filter.</Documentation>
> </InputProperty>
> <IntVectorProperty clean_command="RemoveAllIndices"
> command="AddIndex"
> name="BlockIndices"
> number_of_elements_per_command="1"
> panel_visibility="default"
> repeat_command="1">
> <CompositeTreeDomain mode="all"
> name="tree">
> <RequiredProperties>
> <Property function="Input"
> name="Input" />
> </RequiredProperties>
> </CompositeTreeDomain>
> <Hints>
> <WidgetHeight number_of_rows="20" />
> </Hints>
> <Documentation>This property lists the ids of the blocks to extract
> from the input multiblock dataset.</Documentation>
> </IntVectorProperty>
> <IntVectorProperty command="SetPruneOutput"
> default_values="1"
> name="PruneOutput"
> number_of_elements="1">
> <BooleanDomain name="bool" />
> <Documentation>When set, the output mutliblock dataset will be
> pruned
> to remove empty nodes. On by default.</Documentation>
> </IntVectorProperty>
> <IntVectorProperty command="SetMaintainStructure"
> default_values="0"
> name="MaintainStructure"
> number_of_elements="1">
> <BooleanDomain name="bool" />
> <Documentation>This is used only when PruneOutput is ON. By
> default,
> when pruning the output i.e. remove empty blocks, if node has only
> 1
> non-null child block, then that node is removed. To preserve these
> parent nodes, set this flag to true.</Documentation>
> </IntVectorProperty>
> <!-- End ExtractBlock -->
> </SourceProxy>
>
> Creating something similar for you may work. If you search the code for
> things like vtkSMIntVectorProperty.cxx/h you should find information on how
> the corresponding IntVectorProperty.
>
> On Fri, Jul 15, 2016 at 7:18 AM, Jorge Bañuls <jorgebanuls at gmail.com>
> wrote:
>
>> Hi Andy,
>>
>> Indeed, the vtkExtractBlock filter is what I'm using in my script to
>> extract the blocks, which are currently specified by the user in the
>> properties panel as a string with the name of the block(s). Now that you
>> mention it though, it could be useful to see how this filter creates the
>> checklist. Is there a way to access the code behind this filter?
>>
>> Thanks a lot for your help,
>>
>> Jorge Bañuls
>>
>> On 15 July 2016 at 12:06, Andy Bauer <andy.bauer at kitware.com> wrote:
>>
>>> Have you looked at the Extract Blocks filter? That may already be doing
>>> what you need and if not, it at least shows how to check the boxes for
>>> blocks that you want.
>>>
>>> On Fri, Jul 15, 2016 at 6:53 AM, Jorge Bañuls <jorgebanuls at gmail.com>
>>> wrote:
>>>
>>>> Hi,
>>>>
>>>> I'm developing a filter for Paraview and I need to be able to select
>>>> blocks from the properties panel (the input is a vtkMultiBlockDataSet). The
>>>> approach I'm using right now is to write the name of the block(s) and then
>>>> process that string within the script, but I would like to be able to check
>>>> the blocks I need from a list. I've seen many examples of how to do this,
>>>> but only for variables arrays (e.g. the list displays the cell arrays
>>>> existing in the input). Any ideas on how to apply this to display and
>>>> select the blocks?
>>>>
>>>> Thanks in advance for your help,
>>>>
>>>> Jorge Bañuls
>>>>
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>
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