'[Paraview] Help with Clip filter Annotation'

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List: paraview
Subject: [Paraview] Help with Clip filter Annotation
From: Guðni_Karl_Rosenkjær <grosenkj () eos ! ubc ! ca>
Date: 2013-02-28 20:14:15
Message-ID: CAOqTh==t__6K+fZi8fq1T1OryT4ua89Of1TGZATZnh35LWevAQ () mail ! gmail ! com
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Hello all,

I am making a Annotation for Clip filter that shows the current location. I
have been trying to use the new PythonAnnotation filter but I am not able
to access the Origin and Offset properties from the input to the filters
Expression. This is the Expression I tried: 'At %.0f Northing' %
input.ClipType.Offset+input.ClipType.Origin[1]

In order to get around this, I have made this small python script.

> from paraview.simple import *
>
> # Get the active source
> actSource = GetActiveSource()
>
> # Add the filter
> anno = PythonAnnotation(actSource)
> # Calculate the Northing, offset + origin
> north = anno.Input[0].ClipType.Offset + anno.Input[0].ClipType.Origin[1]
>
> # Set the anno expression
> exprStr = "'At %.0f Northing' % {0:.0f} ".format(north)
> anno.Expression = exprStr
> Show(anno)
> Render()

This works initially, but I am not able to figure out how to get filter to
"update" when the properties of the Clip filter are changed.

All suggestions and help are highly appreciated.

Thanks
Gudni Karl

[Attachment #5 (text/html)]

Hello all,
I am making a Annotation for Clip filter that shows the current location. I have \
been trying to use the new PythonAnnotation filter but I am not able to access the \
Origin and Offset properties from the input to the filters Expression. This is the \
Expression I tried: &#39;At %.0f Northing&#39; % \
input.ClipType.Offset+input.ClipType.Origin[1]

<p>In order to get around this, I have made this small python script. </p>
<p>&gt; from paraview.simple import *<br>
&gt;<br>
&gt; # Get the active source<br>
&gt; actSource = GetActiveSource()<br>
&gt;<br>
&gt; # Add the filter<br>
&gt; anno = PythonAnnotation(actSource)<br>
&gt; # Calculate the Northing, offset + origin<br>
&gt; north = anno.Input[0].ClipType.Offset + anno.Input[0].ClipType.Origin[1]<br>
&gt;<br>
&gt; # Set the anno expression<br>
&gt; exprStr = &quot;&#39;At %.0f Northing&#39; % {0:.0f} &quot;.format(north)<br>
&gt; anno.Expression = exprStr<br>
&gt; Show(anno)<br>
&gt; Render() <br></p>
<p>This works initially, but I am not able to figure out how to get filter to \
&quot;update&quot; when the properties of the Clip filter are changed. </p> <p>All \
suggestions and help are highly appreciated. </p> <p>Thanks<br>
Gudni Karl </p>

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