<html><body><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000"><div> <!--StartFragment--><div>Dear all,<br><br>I'm working with (geo)student of the FabLab here in Paris.<br>Their objective is to construct 3D models of coccoliths for teaching purpose.<br>These models are made with OpenSCad and use simple volumes (squares, cylinders, polygons) and simple operations (rotation, translation, ecc).<br>The downside of this approach is that we need quantified morphological parameters as dimensions and angles of the crystal elements.<br>Attached are some images of a preliminary test on C.leptoporus to validate the approach. Coccolith interlock quite well to form a full coccosphere.<br><br>Does anyone know were we can find such morphological data?<br>For example: angle of kinks, angle between distal shield elements and the plane of coccolith, space between proximal and distal shield, width of tube elements, ecc, ecc<br><br>Do such data even exist?<br><br>Thank you in advance for any help!<br><br>All the Best,<br>Fabrice.</div><div><br></div><div><br>- - - - - - - - - - - - - - - - - -<br>Fabrice MINOLETTI, PhD<br>Maître de Conférences HDR – Sorbonne Université<br>Institut des Sciences de la Terre de Paris (ISTeP - UMR 7193)<br>Campus Pierre et Marie CURIE, Paris, France</div><!--EndFragment--> </div><div><br></div><div data-marker="__SIG_PRE__"><br>- - - - - - - - - - - - - - - - - -<br>Fabrice MINOLETTI, PhD<br>Maître de Conférences HDR – Sorbonne Université<br>Directeur Master STePE Portail SDUEE<br>Co-responsable Parcours-type Géosciences et Planétologie (GEO-P)<br>Institut des Sciences de la Terre de Paris (ISTeP - UMR 7193)<br>Equipe Terre/Mer: Structure et Archive<br>Campus Pierre et Marie CURIE<br>T56-55 5eme - Case 116 - 4, Place Jussieu 75252 Paris cedex 05<br>Tel: +33 (0)1 44 27 27 60<br>Site Web http://www.istep.upmc.fr<br></div></div></body></html>