Hello,

Given three nodes on a given slice, how would I go about finding all the elements within the area enclosed by those three nodes? How would the element numbers correspond to the node numbers? I plan on changing the properties of those elements within these bounds. See here:

[img width=200 height=178]http://i.imgur.com/T8jsfgK.png[/img]

The elements in orange are the ones being bounded by the area of the triangle (outlined in red) with the nodes (yellow vertices).

Thanks,

Calculate the centroids (http://en.wikipedia.org/wiki/Centroid) of all elements and store them in an array.

Use one of the methods suggested in the thread below to find out which of the centroids (which comes in x and y coordinates in 2D) that are within the triangle that you define.

http://stackoverflow.com/questions/2049582/how-to-determine-a-point-in-a-triangle

Use IfmGetNode to obtain vertices (nodes) of elements.

Hope this is what you were looking for!

Best regards,
Søren

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