Delftship to GL Poseidon “export”?

DELFTship forum Hull modeling Delftship to GL Poseidon “export”?

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    • #34149
      AvatarJonny Schouh
      Participant

      Hi,

      is there an easy way to create an Delftship offset file that i can import in Poseidon (Germanischer Lloyd structural design program)?

      The poseidon file needs points (offsets, y and z coordinates in mm) for each frame, with a syntax like that:

      FUNCELE SHELL FRAMENO 65 POINTS 20

      0000.0 0000.0 LINE
      5043.0 0000.1 LINE
      5454.9 0005.0 LINE
      5826.4 0026.4 LINE
      6188.2 0076.3 LINE
      6809.2 0208.0 LINE
      7630.0 0460.0 LINE
      8205.7 0692.3 LINE
      9348.8 1317.6 LINE
      10020.2 1804.2 LINE
      11417.9 3122.2 LINE
      12097.6 3944.0 LINE
      13231.4 5598.6 LINE
      13739.5 6465.3 LINE
      14056.2 7092.3 LINE
      14587.6 8519.4 LINE
      14749.8 9143.2 LINE
      14839.9 9592.3 LINE
      14900.0 10383.1 LINE
      14900.0 21400.0 LINE

      When I create offsets in Delftship, the syntax is quite different, and although I do get the offset data i need, I’d have to write a competely new file by “copy and paste” data with like 40 points (y,z coord.) for 230 Frames … wich is a lot of work… 40*2*230=18400 times copy and paste 😉

      So is there any way to create an offset file thats more easy to import in Poseidon?

    • #34150
      AvatarMarven
      Keymaster

      The file format seems quite simple.
      Is there any documentation available on the format?

    • #34151
      AvatarJonny Schouh
      Participant

      Hi,
      I already found a “little more” easy way to get format i need by reading in the delftship output with excel.
      Regarding the dokumentation-
      this is from the poseidon manual:
      ————————————–
      10.4. Import of Geometry

      POSEIDON can import geometry and topology description from an easy to create ASCII file. The file must have the extension “.frm”. To import the data, select a file with the extension “.frm” in the file select box from the File/Import command.

      The imported data supplements the data already existing in POSEIDON. Should a conflict arise (for example, when a functional element is imported which already exists in POSEIDON), a warning is issued and the process can be aborted without overwriting the existing data.

      Definition of the ASCII File Format

      The general syntax of the geometry data of the .frm file is as follows:

      • All key-words written in capital letters have to be used exactly as written

      • # Comment until the end of the line

      • Empty lines in the file will be ignored.

      • : real number

      • : integer

      • […]: entry is optional

      • {…,…}: a value has to be chosen

      • Co-ordinates for the geometry are given in mm

      • LINE a linear connection with the following point

      • CIRCLE a circular connection with the next point. The radius can be calculated because the gradient of the tangent at the starting point is used from the previous line.

      Syntax of the Frame table

      LFRAMETAB RANGES FPP REFFRAMENO

      ranges *

      Explanation:

      LFRAMETAB Keyword for the beginning of the frame table

      RANGES Number of ranges in which the frame spacing is constant

      FPP Offset of the forward perpendicular (in mm)

      REFFRAMENO from the reference Frame No.

      The following applies for all ranges (as given in RANGES) in increasing order:

      Frame No: Frame No. at which the range begins

      frame spacing Frame spacing (in mm) for this range

      Syntax of Principal Dimensions

      PRINDIM LPP LWL B H T VO CB

      Explanation:

      PRINDIM Keyword for the beginning of the principal dimensions

      LPP length between perpendiculars (in m)

      LWL length of water line at T (in m)

      B breadth (in m)

      H depth (in m)

      T design draught (in m)

      VO max. speed in calm water

      CB block coefficient

      Syntax for the Geometry description

      FUNCELE FRAMENO POINTS [FA {F,A,H}] [SYM {P,S}]

      points *

      Explanation:

      Designation of each frame contour:

      FUNCELE Name of the functional element (max. 6 letters)

      FRAMENO Frame No.

      POINTS Number of the following dimension points (minimum 2)

      FA {F,A,H} optional entry of area of validity in the ship longitudinal direction:

      F valid forwards (Forward)

      A valid rearwards (Aft)

      H valid only at this position (Here)

      If no area of validity is given, there is no limitation in the ship longitudinal direction.

      SYM {P,S} Symmetry

      P valid only for the port side

      S valid only for the starboard side

      If no symmetry is given, the description is valid for both sides.

      Example file:

      ———————————————-

      … For some reason Poseidon wont accept my file though

    • #34152
      AvatarMarven
      Keymaster

      Can you post the corresponding example file too (see last line of your post

    • #34153
      AvatarJonny Schouh
      Participant

      This is the example file from the manual:

      # Example file, in order to show the syntax
      PRINDIM LPP 195.4 LWL 195.4
      PRINDIM B 29.8 H 50.5 T 10.1
      LFRAMETAB RANGES 4 FPP 190 REFFRAMENO 246

      -7 720
      4 800
      47 790
      255 790

      FUNCELE SHELL FRAMENO 5 POINTS 17

      0000.0 9461.2 LINE
      1425.1 9617.6 LINE
      4102.1 9970.3 LINE
      6258.6 10315.8 LINE
      8060.2 10679.9 LINE
      9955.3 11209.4 LINE
      10668.5 11465.4 LINE
      11827.8 12021.6 LINE
      12736.9 12631.7 LINE
      13191.3 13025.3 LINE
      13502.8 13336.3 LINE
      14023.6 13980.9 LINE
      14564.4 15011.0 LINE
      14780.9 15755.6 LINE
      14886.7 16555.2 LINE
      14900.0 16978.8 LINE
      14900.0 21400.0 LINE

      # This is only an example comment
      FUNCELE SHELL FRAMENO 65 POINTS 20

      0000.0 0000.0 LINE
      5043.0 0000.1 LINE
      5454.9 0005.0 LINE
      5826.4 0026.4 LINE
      6188.2 0076.3 LINE
      6809.2 0208.0 LINE
      7630.0 0460.0 LINE
      8205.7 0692.3 LINE
      9348.8 1317.6 LINE
      10020.2 1804.2 LINE
      11417.9 3122.2 LINE
      12097.6 3944.0 LINE
      13231.4 5598.6 LINE
      13739.5 6465.3 LINE
      14056.2 7092.3 LINE
      14587.6 8519.4 LINE
      14749.8 9143.2 LINE
      14839.9 9592.3 LINE
      14900.0 10383.1 LINE
      14900.0 21400.0 LINE

    • #34167
      Avatarinternetturk
      Participant

      If you have a manual for Poseidon Software of GL could you please send me?

      Best Regards,

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