<div dir="auto">You could run polydatanormals and tell it to generate cell normals. Then for your cell, get the normal.</div><br><div class="gmail_quote"><div dir="ltr">On Thu, Aug 30, 2018, 9:46 AM Polly Pui <<a href="mailto:polly_sukting@hotmail.com">polly_sukting@hotmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<p style="margin-top:0;margin-bottom:0">Hi,</p>
<p style="margin-top:0;margin-bottom:0">I would like mark a point/find the point which is perpendicular to the centroid of a region in a polydata.</p>
<p style="margin-top:0;margin-bottom:0">Please refer to the attached image.</p>
<p style="margin-top:0;margin-bottom:0">How can I make a keypoint (marked in red) which is z normal to the given coordinates (marked as +)? </p>
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<p style="margin-top:0;margin-bottom:0">Thank you.</p>
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<p style="margin-top:0;margin-bottom:0">Polly</p>
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