Grid generation error.
 
 
Error using <a href="matlab:matlab.internal.language.introspective.errorDocCallback('featool')" style="font-weight:bold">featool</a>
Gmsh generated/returned a 2D instead of 3D grid.
 
Error in <a href="matlab:matlab.internal.language.introspective.errorDocCallback('featool')" style="font-weight:bold">featool</a>
 
Error in <a href="matlab:matlab.internal.language.introspective.errorDocCallback('featool')" style="font-weight:bold">featool</a>
 
Error in <a href="matlab:matlab.internal.language.introspective.errorDocCallback('featool')" style="font-weight:bold">featool</a>
 
Error in <a href="matlab:matlab.internal.language.introspective.errorDocCallback('featool')" style="font-weight:bold">featool</a>
 
Error in <a href="matlab:matlab.internal.language.introspective.errorDocCallback('featool')" style="font-weight:bold">featool</a>
 
Error in <a href="matlab:matlab.internal.language.introspective.errorDocCallback('featool')" style="font-weight:bold">featool</a>