<div style="line-height:1.7;color:#000000;font-size:14px;font-family:Arial"><p class="MsoNormal" align="left" style="line-height: 16.25pt;"><span lang="EN-US" style="font-size:12.0pt;font-family:"Times New Roman",serif;
mso-fareast-font-family:ЛОМе;mso-font-kerning:0pt">To whom it may concern,</span></p><p class="MsoNormal" align="left" style="line-height: 16.25pt;"><span lang="EN-US" style="font-size:12.0pt;font-family:"Times New Roman",serif;
mso-fareast-font-family:ЛОМе;mso-font-kerning:0pt">Hello! I am
a user of Gmsh and I've been using it for my research for a long time in the
field of computational electromagnetics. Thank you for your contribution to
this application!</span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;
font-family:"Arial",sans-serif;mso-fareast-font-family:ЛОМе;mso-font-kerning:
0pt"><o:p></o:p></span></p><p class="MsoNormal" align="left" style="line-height: 16.25pt;"><span lang="EN-US" style="font-size:12.0pt;font-family:"Times New Roman",serif;
mso-fareast-font-family:ЛОМе;mso-font-kerning:0pt">Here I have two
questions regarding Gmsh. <b>First,</b> I've already known that the 2D surface will be
meshed into triangles and the 3D volume will be meshed into tetrahedrons in
Gmsh. When a 3D volume is in touch with a 2D surface, they will share a
certain face. Just on this interface, rather than the mesh shown in Fig.1,
could you possibly make the triangles in the meshed tetrahedrons match up with
those in the meshed surface like Fig.2 maybe through some appropriate settings? <b>Second,</b>
how can I translate a closed surface (e.g. a spherical surface) into a volume
(e.g. a solid sphere)?</span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;
font-family:"Arial",sans-serif;mso-fareast-font-family:ЛОМе;mso-font-kerning:
0pt"><o:p></o:p></span></p><div style="line-height: 16.25pt;"><span lang="EN-US" style="font-size:12.0pt;font-family:"Times New Roman",serif;
mso-fareast-font-family:ЛОМе;mso-font-kerning:0pt">This question is really
important for my ongoing research. Could you please answer it when you're free?
Thank you so much. Looking forward to your reply.</span></div><div style="line-height: 16.25pt;"><span lang="EN-US" style="font-size:12.0pt;font-family:"Times New Roman",serif;
mso-fareast-font-family:ЛОМе;mso-font-kerning:0pt"><br></span></div><div style="line-height: 16.25pt;"><span lang="EN-US" style="font-size:12.0pt;font-family:"Times New Roman",serif;
mso-fareast-font-family:ЛОМе;mso-font-kerning:0pt"><img src="cid:1860b3d6$1$15525d0ea1f$Coremail$liujinbo005$163.com" orgwidth="524" orgheight="467" data-image="1" style="width: 524px; height: 467px;"></span><img src="cid:74beb31a$2$15525d0ea1f$Coremail$liujinbo005$163.com" style="line-height: 1.7; width: 770px; height: 775px;" orgwidth="770" orgheight="775" data-image="1"></div><div style="line-height: 16.25pt;"><span lang="EN-US" style="font-size:12.0pt;font-family:"Times New Roman",serif;
mso-fareast-font-family:ЛОМе;mso-font-kerning:0pt">                                                       Fig.1      Mismatched meshes on the interface</span><span style="font-family: 'Times New Roman', serif; font-size: 12pt; line-height: 16.25pt;">                                                                      Fig.2 Matching meshes on the interface       </span></div><p class="MsoNormal" align="left" style="line-height: 16.25pt;"><span lang="EN-US" style="font-size:12.0pt;
font-family:"Times New Roman",serif;mso-fareast-font-family:ЛОМе;mso-font-kerning:
0pt"> Regards</span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;font-family:"Arial",sans-serif;mso-fareast-font-family:
ЛОМе;mso-font-kerning:0pt"><o:p></o:p></span></p><p class="MsoNormal" align="left" style="line-height: 16.25pt;"><span lang="EN-US" style="font-size:12.0pt;
font-family:"Times New Roman",serif;mso-fareast-font-family:ЛОМе;mso-font-kerning:
0pt"> Edward Liu</span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;font-family:"Arial",sans-serif;
mso-fareast-font-family:ЛОМе;mso-font-kerning:0pt"><o:p></o:p></span></p><p class="MsoNormal" align="left" style="line-height: 16.25pt;"><span lang="EN-US" style="font-size:12.0pt;font-family:"Times New Roman",serif;
mso-fareast-font-family:ЛОМе;mso-font-kerning:0pt">Beijing Institute of Technology</span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;font-family:"Arial",sans-serif;mso-fareast-font-family:
ЛОМе;mso-font-kerning:0pt"><o:p></o:p></span></p><p class="MsoNormal">













</p><p class="MsoNormal"><span lang="EN-US" style="font-size:12.0pt;mso-bidi-font-size:
11.0pt;font-family:"Times New Roman",serif"> </span></p></div>