[nigel332]

Dear all,

Thanks for your attention first！

I met the problems of "positive skew jacobian" when I try to extrude the domain grids of half of a ship into blocks.

My used one domain grid to describe the ship model with deck, as shown in pic1.
pic1：


As you can see in the following pic, the grid for stern is very sharp, so when i use extrude--normal method to create the block for the ship, i met the problems such as "positive skew jacobian" .


So, my good friends, can your give me some suggest and help me with the problems?

Thank you !