<html><head></head><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue-Light, Helvetica Neue Light, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px"><div id="yui_3_16_0_ym19_1_1478265022838_3866">Hello Gmsh users,</div><div id="yui_3_16_0_ym19_1_1478265022838_3925"><br></div><div id="yui_3_16_0_ym19_1_1478265022838_3926">Would you please some one kindly inform me how I can refine the mesh around a specefic line in 2D and 3D meshes?</div><div id="yui_3_16_0_ym19_1_1478265022838_3927">For instance I want to refine a Square or Cube with <b>unstructured</b> quad or triangular mesh around its diameter (two gmsh files have been attached).</div><div id="yui_3_16_0_ym19_1_1478265022838_4091">Thanks for your considerations,</div><div id="yui_3_16_0_ym19_1_1478265022838_4092">Look forward to your kind response,</div><div id="yui_3_16_0_ym19_1_1478265022838_4458"><br></div><div id="yui_3_16_0_ym19_1_1478265022838_4093"><br></div><div id="yui_3_16_0_ym19_1_1478265022838_4094">Best,</div><div id="yui_3_16_0_ym19_1_1478265022838_4095"><br></div><div id="yui_3_16_0_ym19_1_1478265022838_4124">Glad<br></div></div></body></html>