[Paraview] Measuring a specific contour line generated in Paraview with Line object?

[Jesse Samluk]

Awesome thanks Cory for the assist!

Jesse
> On Oct 7, 2015, at 9:19 AM, Cory Quammen <cory.quammen at kitware.com> wrote:
> 
> Hi Jesse,
> 
> On Fri, Oct 2, 2015 at 7:09 PM, Jesse Samluk <sevensam at udel.edu <mailto:sevensam at udel.edu>> wrote:
> Cory,
> 
>   Two quick questions for you on the differences between “Ruler” and “PlotOverLine”.
> 
>    I think what I am looking for is the Ruler source to give me the width of those white lines (as indicated on the image with the red line, attached again for reference). My question first question is, is there a way to save a Ruler in a state file such that it will automatically adjust to a new width of those white lines when I open another VTK file? Or do I have to manually adjust them with each VTK I open?
> 
> You'll have to do it manually. That would be a fancy (but cool!) trick to do the processing needed to stick the rule endpoints to the white region.
>  
>    Second question, when you said the line below, what did you mean (can you walk me through it?)? The way I take it is that the PlotOverLine gives me values of all the fields present as defined on the Ruler (which is cool, by the way), but not the width unless I define it. Am I on the right track with this one, or way off?
> 
> PlotOverLine will not give you the width. What I was suggesting was look at the values in the properties Point1 and Point2. Each of these has x,y,z values for the line endpoints. You can use the standard distance formula for computing the distance between points - not from within ParaView, but with a calculator, spreadsheet program, etc. - to compute the length of the line used in the PlotOverLine filter.
> 
> Cory
>  
> 
> Thanks!
> Jesse
>> On Sep 30, 2015, at 9:22 AM, Cory Quammen <cory.quammen at kitware.com <mailto:cory.quammen at kitware.com>> wrote:
>> 
>> Optionally, you could dispense with the Ruler source and compute the length of the line in the Plot Over Line filter manually given Point1 and Point2.
> <ControlRun2LevelIce copy.png>
> 
> 
> 
> -- 
> Cory Quammen
> R&D Engineer
> Kitware, Inc.

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