Export the Faces

[Jensen]

I have developed a potential flow code, which is quite flexible with the shape and size of the panel model etc. I would like to try to use the subdivision surface directly as panels. Is there a way to dump the corners and connections of these subdivision surfaces?

[Marven]

Maybe you can be more specific to what information you exactly need?

For instance:

• Do you only need the corner points of each panel
• Should the panels be rectangular, triangular or are panels with more than 4 points also acceptable
• Will you need the underwater part only or the complete hull

[Jensen]

The use is
1. list of corner points:
point_number x y z
point_number x y z
…
2. list of panels i.e. the numbers of the corner:
number_of_corners (i,e. 3,4,5,6)
point_number point_number…
number_of_corners (i,e. 3,4,5,6)
point_number point_number…

But of course any other listing from which the above information can be generated is useful.

The number of corners can be from 3 to 6.
The paneling should extend beyond the waterline. The actual dynamic waterline including the effect of waves and trim and sinkage is found during the calculation.

jensenigu

[Marven]

That’s a fairly flexible format then.
have you tried the Wavefront (.Obj) export format of Delftship yet? See the attached file, it contains exactly what you need: Fist a list of vertices, then the faces connecting them. All vertices are specified once. [file name=test.txt size=14299]http://www.delftship.net/delftship/media/kunena/attachments/legacy/files/test.txt[/file]

Attachments:

• test.txt

[Jensen]

Thank you,
that is exactly what I can use for further precessing!

[Author]

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