<div dir="ltr"><div><div><div> Hi Octávio,<br><br></div> Why not a flat bottomed second layer, say, on top of the first... it seems that a exclusion (subtraction) would give you the layer with the right bottom topography to later combine with the first layer. This helps?<br><br></div> regards,<br><br></div> Luís Henrique Camargo Quiroz<br></div><br><div class="gmail_quote"><div dir="ltr">Em sex, 21 de set de 2018 às 08:37, Octavio Castillo Reyes <<a href="mailto:ocastilloreyes@gmail.com">ocastilloreyes@gmail.com</a>> escreveu:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div dir="ltr"><div>Dear all, <br></div><div><br></div><div>I'm interested too. My domains are composed 3, 4 or 5 materials (maybe more) where each interface might include a topography. For instance, do you know if is possible include another layer to the model proposed by Riad Hassani?</div><div><br></div><div>Any idea?</div><div><br></div><div>Best regards</div><div><br></div><div>O.<br></div></div></div><br><div class="gmail_quote"><div dir="ltr">On Fri, Sep 21, 2018 at 12:37 PM Riad HASSANI <<a href="mailto:Riad.Hassani@unice.fr" target="_blank">Riad.Hassani@unice.fr</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style="word-wrap:break-word">Hi Stephanie,<div><div><div><br></div><div>the only trick I had found at the time is in three steps (there may be more direct solutions, if so, I'm interested!):</div><div><br></div><div>1) mesh only the "skin" of your domain (2D mesh), save it in a .msh file</div><div>2) move the nodes of the surface to match with your topography (use an external program that reads the .msh, interpolates the topography on the appropriate faces and rewrites your .msh).</div><div>3) in a .geo file, merge this new .msh, define the volume and then mesh it (3D mesh) (for example, if the initial domain has 6 faces : Merge "skin_modified.msh"; Surface Loop(1) = {1,2,3,4,5,6}; Volume(1)={1}; )</div><div><br></div><div>Best,</div><div><br></div><div>Riad</div><div><br></div><div><img id="m_7663227502285625416m_-6486986602777856275C58DD49C-FA1E-4C31-90C9-903DAC6B2088" height="575" width="733"></div><div><br></div><div>Le 21 sept. 2018 à 02:12, Stephanie Jarvis <<a href="mailto:Stephanie.Jarvis@colorado.edu" target="_blank">Stephanie.Jarvis@colorado.edu</a>> a écrit :</div><br class="m_7663227502285625416m_-6486986602777856275Apple-interchange-newline"><blockquote type="cite"><div dir="ltr"><div>Hello,</div><div><br></div><div>Can gmsh can handle topography? I see this has been asked several times but I can't find a resolution. I have surveyed grid points from a hillslope surface that I need to create a 3D mesh for (top of the box is the hillslope topography, bottom is flat extending into the surface). I've tried embedding the points into a surface I create around them, using Point In Surface, but the points mesh as holes (if they're below that surface) or in the air by themselves (if they're above)--there is no interpolation between them. I've also tried several variations of lines and splines connecting the points, but I can't get that to mesh successfully. Plugin(Tetrahedralize) looks promising, but it's unclear to me how to use it--is it possible to get a "View" out of a bunch of points? Or do I need to create an interpolated surface outside of gmsh and bring that in to mesh?<br></div><div><br></div><div>Thank you!</div><div>Stephanie<br></div></div>
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<div style="color:rgb(0,0,0);letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;word-wrap:break-word"><div style="color:rgb(0,0,0);letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;word-wrap:break-word"><div>-----------------------------------------------------------------<br>Riad HASSANI<br>GéoAzur<br>Université Nice-Sophia Antipolis<br>250 rue Albert Einstein<br>Sophia Antipolis<br>06560 Valbonne - France<br>tel. : 33 (0) 4 83 61 86 71 / 33 (0) 4 92 07 65 89</div><div><br></div></div><br class="m_7663227502285625416m_-6486986602777856275Apple-interchange-newline"></div><br class="m_7663227502285625416m_-6486986602777856275Apple-interchange-newline"><br class="m_7663227502285625416m_-6486986602777856275Apple-interchange-newline">
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