Front Area Calculation using ParaView

Summary


Edit -> View Settings...
Render View Options -> General -> Use Parallel Projection : checkbox true : Apply

Set view direction to +X

Edit -> Select Cells On

Filters -> Data Analysis -> Extract Selection : Apply

Filters -> Alphabetical -> Transform : set Scale X to 1e-5 : Apply

Filters -> Data Analysis -> Integrate Variables : Apply

Change from Point Data to Cell Data


Front area calculation

This is one way to calculate front area in ParaView.

Make shure parallel projection is activated.
front area calc 1

Edit -> View Settings...
Render View Options -> General -> Use Parallel Projection : checkbox true : Apply

Make shure you watch the front area.
front area calc 2

Set view direction to +X

Select cells facing towards you.
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Edit -> Select Cells On

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Drag a rectangle around the object.

Extract selected cells.
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Filters -> Data Analysis -> Extract Selection : Apply

Compress in view direction.
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Filters -> Alphabetical -> Transform : set Scale X to 1e-5 : Apply

Cells are now flat and possible to calculate area on.
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Selected cells are now flat.

Integrate cell variables.
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Filters -> Data Analysis -> Integrate Variables : Apply

Switch to cell data.
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Change from Point Data to Cell Data

Front area ready.
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Now we have the projected area. The front area is 0.12 m2 for this diameter 0.4 m sphere