Home > wafo > docs > tpdef.m

tpdef

PURPOSE ^

turning points definitions and numenclature

SYNOPSIS ^

This is a script file.

DESCRIPTION ^

  TPDEF turning points definitions and numenclature
 
  Definition of turningpoints: 
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  Local minimum or maximum are indicated with the
  letters 'm' or 'M'. Turning points in this connection are all
  local max (M) and min (m) and the last (L) value and the 
  first (F) value if the first local extremum is a max. 
 
  (This choice is made in order to get the exact up-crossing intensity
  from rfc by mm2lc(tp2mm(rfc)) )
 
  Definition of min2min and Max2Max wave:
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  A min2min wave (mw) is defined starting from a minimum and  
  ending in the following minimum.
  Similarly a Max2Max wave (Mw) is thus a wave from a maximum 
  to the next maximum (all waves optionally rainflow filtered).
 
  Definition of Max2min and min2Max cycle:
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  A min2Max cycle (mM) is defined as the pair of a minimum
  and the following Maximum. Similarly a Max2min cycle (Mm) 
  is defined as the pair of a Maximum and the following minimum.
  (all cycles possibly rainflowfiltered)
 
               <----- Direction of wave propagation 
 
    M                  M
   / \       .... M   /:\_           M_            M
  F   \     |    / \m/ :  \         /: \          / \  
       \  h |   /      :   \       / :  \        /   \
        \   |  /       :    \     /  :   \_    _/     \_   L
         \_ | /        :     \_m_/   :     \m_/         \m/
           \m/         :             :      :            :
                       <------Mw----->      <-----mw----->
 
  See also  wavedef, crossdef, dat2tp

CROSS-REFERENCE INFORMATION ^

This function calls: This function is called by:

SOURCE CODE ^

001 % TPDEF turning points definitions and numenclature
002 %
003 % Definition of turningpoints: 
004 %~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
005 % Local minimum or maximum are indicated with the
006 % letters 'm' or 'M'. Turning points in this connection are all
007 % local max (M) and min (m) and the last (L) value and the 
008 % first (F) value if the first local extremum is a max. 
009 %
010 % (This choice is made in order to get the exact up-crossing intensity
011 % from rfc by mm2lc(tp2mm(rfc)) )
012 %
013 % Definition of min2min and Max2Max wave:
014 %~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
015 % A min2min wave (mw) is defined starting from a minimum and  
016 % ending in the following minimum.
017 % Similarly a Max2Max wave (Mw) is thus a wave from a maximum 
018 % to the next maximum (all waves optionally rainflow filtered).
019 %
020 % Definition of Max2min and min2Max cycle:
021 %~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
022 % A min2Max cycle (mM) is defined as the pair of a minimum
023 % and the following Maximum. Similarly a Max2min cycle (Mm) 
024 % is defined as the pair of a Maximum and the following minimum.
025 % (all cycles possibly rainflowfiltered)
026 %
027 %              <----- Direction of wave propagation 
028 %
029 %   M                  M
030 %  / \       .... M   /:\_           M_            M
031 % F   \     |    / \m/ :  \         /: \          / \  
032 %      \  h |   /      :   \       / :  \        /   \
033 %       \   |  /       :    \     /  :   \_    _/     \_   L
034 %        \_ | /        :     \_m_/   :     \m_/         \m/
035 %          \m/         :             :      :            :
036 %                      <------Mw----->      <-----mw----->
037 %
038 % See also  wavedef, crossdef, dat2tp
039 
040 % history:
041 % by Per A. Brodtkorb 19.09.1999
042 % revised pab 15.05.2000
043 
044 
045 more on
046 help tpdef
047 more off
048

Mathematical Statistics
Centre for Mathematical Sciences
Lund University with Lund Institute of Technology

Comments or corrections to the WAFO group


Generated on Thu 06-Oct-2005 02:21:16 for WAFO by m2html © 2003