<div dir="ltr">This could work, although I'm not quite seeing how trim edges would fit in. Also sometimes there are supplemental structures like polygonal tessellations to help speed up geometric operations, etc. </div><div class="gmail_extra"><br><div class="gmail_quote">On Fri, Jul 3, 2015 at 9:15 AM, David Thompson <span dir="ltr"><<a href="mailto:david.thompson@kitware.com" target="_blank">david.thompson@kitware.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><span class="">> Long term I'd like to think how we could represent a CAD model with a large number of trimmed splines.<br>
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</span>What problem do you foresee with a multiblock of structured grids? The memory overhead of vtkStructuredGrid? It seems pretty minimal to me compared to the b-reps CAD packages use and the multiblock dataset need not be flat... it could be a bounding box hierarchy for fast culling of irrelevant patches.<br>
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    David</font></span></blockquote></div><br><br clear="all"><div><br></div>-- <br><div class="gmail_signature">William J. Schroeder, PhD<br>Kitware, Inc.<br>28 Corporate Drive<br>Clifton Park, NY 12065<br><a href="mailto:will.schroeder@kitware.com" target="_blank">will.schroeder@kitware.com</a><br><a href="http://www.kitware.com" target="_blank">http://www.kitware.com</a><br>(518) 881-4902</div>
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