How Do You Split a Surface Into Two Surfaces?


This command allows you to break a surface into two separate, but joined surfaces along an existing row or column of the surface. One could say that this command is equivalent to changing a “smooth” row or column into a hard or “knuckle” row or column. This means that the two surfaces are attached at the row or column, but now form a hard edge or corner.


To split a surface along a row or column into two separate, but joined surfaces:

1.   Select the Surf-Cvt Row/Col Knuckle command.

2.   Position the cursor over the internal surface row or column that you wish to use as the split curve and click the left mouse button.

3.   Repeat step 2 as many times as you want. The Cvt Row/Col Knuckle command will stay active or current until you select another command.



Note 1: This command works like a toggle or an on/off switch. It can be used to convert two separate surfaces into one along a common edge. (See the next section on joining surfaces.)


Note 2: After splitting the one surface into two, the two surfaces remain attached and a “Bonded Edge” relationship is created between the two. This means that you can edit the points along this edge and the two surfaces will remain together. This means that the program can edit polysurfaces without separating or “exploding” them apart.


Note 3: If there is no row or column where you wish to split the surface, then you must first add the row or column to the surface using the Surf-Add Row/Col-Add Row/Col Angle command.