This section explains how to create a closed loft surface.
Procedure:
[1] Create straight lines using sketches or 3D curves.
Arrange them to form a triangle or circle when viewed from the side.

If the section shape is even slightly complex, a closed loft may not be generated.
[2] Go to the [Surface] tab and launch [Loft Surface].
Select the lines created in Step 1 as loft curves in sequence.
Then, check the [Closed Loft] option in the property browser.
[3] Click [✓] to complete the operation.
Please refer to the video below.
IC-148