Field of View Question

Tecplot's Add-on Developer's Kit

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Field of View Question

Postby tibetriver » Mon Jun 17, 2013 4:18 pm

I am modifying an add-on and within that add-on I want to search through a data array and find only those nodes that are within the field of view. I thought I could just restrict it based on axis, but that does not work if the field of view is in 3-D zoom or a zoom on the workspace. Is there a simple way to do this


Josh Werkau
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Joined: Mon Oct 08, 2012 11:24 am
Location: Bellevue, Wa

Re: Field of View Question

Postby Josh Werkau » Tue Jun 18, 2013 8:03 am

Hi Mike,

If you would like to be able to tell if a point is within the view of the screen you can try comparing to the frame coordinates. To do this you can use the TecUtil function to convert the coordinates of a point to grid coordinates. Then from there you can use another TecUtil function to convert to frame coordinates.

Now that you have the frame coordinates if the X coordinate is between 0 and 1 and the Y coordinate is between 0 and 1 then you know your point is within the view of the frame.


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