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Thread: PastoDeco 2.8.2 tech dive planner available

  1. #1

    PastoDeco 2.8.2 tech dive planner available

    Hi,
    I published new versions of PastoDeco©: 2.8.1 for Android ( on Play Store ) and 2.8.2 for Windows

    ( on my website: PastoDeco© decompression planning software ).

    PastoDeco© is a dive planner for Technical dives ( or recreationals ) using Air, Nitrox, Trimix,

    Heliox, Heliair, Helitrox mixes.
    It uses Buhlmann ZH-L16A,ZH-L16B, ZH-L16C decompression models and VPM/B and VPM/B-GFS models.

    New functions:
    --------------------
    > Supported languages: English, French, Italian, Spanish, Portuguese, Polish, German and Greek

    > Choice Buhlmann deco models ZH-L16A, ZH-L16B*, ZH-L16C*.

    > Repetitives dive w/surface interval and choice of interval breathing gas ( Air or oxy )* with

    tissues off-gassing charts.

    > Per-dive settings

    > Last stop at 3, 4.5, 5, 6 o 9 mètres ( 10 to 30 feet )

    > Possibility to set a min. deco stop when changig mix leaving trimix.

    > Customizables deco stop steps at 3, 4 or 5 mètres ( 10 to 16 feet )


















    Mac and iOS versions availables soon.

    (*) Pro version functions

  2. #2
    RBW Member Paul S is on a distinguished road Paul S is on a distinguished road Paul S's Avatar
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    Re: PastoDeco 2.8.2 tech dive planner available

    Is there a good reason you've made ZH-L-16A the only Buhlmann setting available in the free version? To quote Erik Baker in 'Understanding M-Values' (my added emphasis):
    The ZH-L16A set has sixteen pairs of coefficients for sixteen half-time compartments and these M-values were mathematically-derived from the half-times based on the tolerated surplus volumes and solubilities of the inert gases. The ZH-L16A set of M-values for nitrogen is further divided into subsets B and C because the mathematically-derived set A was found empirically not to be conservative enough in the middle compartments. The modified set B (slightly more conservative) is suggested for table calculations and the modified set C (somewhat more conservative) is suggested for use with in-water decompression computers which calculate in real-time.
    I realise you're trying to monetize your work (which is perfectly fair), but this seems like a rather odd choice. B is the only real option for a program like yours.

  3. #3
    RBW Member Igor P is just really nice Igor P is just really nice Igor P is just really nice Igor P is just really nice Igor P is just really nice Igor P is just really nice Igor P is just really nice Igor P is just really nice Igor P is just really nice Igor P is just really nice Igor P is just really nice Igor P's Avatar
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    Re: Re: PastoDeco 2.8.2 tech dive planner available

    Quote Originally Posted by Paul S  View Original Post
    Is there a good reason you've made ZH-L-16A the only Buhlmann setting available in the free version? To quote Erik Baker in 'Understanding M-Values' (my added emphasis): I realise you're trying to monetize your work (which is perfectly fair), but this seems like a rather odd choice. B is the only real option for a program like yours.
    +1

    Sent from my PAP4500DUO using Tapatalk 2

  4. #4

    Re: PastoDeco 2.8.2 tech dive planner available

    Is there a way to share the same settings between PC and Mobile?

    That feature has been lacking in other deco software, and as a user is very annoying.

  5. #5

    Re: PastoDeco 2.8.2 tech dive planner available

    Quote Originally Posted by megdiver792  View Original Post
    Is there a way to share the same settings between PC and Mobile?

    That feature has been lacking in other deco software, and as a user is very annoying.
    It's already planned as new version feature.

  6. #6

    Re: PastoDeco 2.8.2 tech dive planner available

    Quote Originally Posted by Igor P  View Original Post
    +1

    Sent from my PAP4500DUO using Tapatalk 2
    Hi,
    theoretically the 'A' table is a 'pure' Buhlmann deco model, subset B is a set 'A' with very small changes in middle compartments.
    However, PastoDeco, as others softwares does not implement 'pure' Buhlmann Model, but modified with application of Erik Baker's Gradients Factors.

    This means that, if you use 30-80 GF settings, at the bottom you authorizes only 30% of maximum delta pressure derived from original Buhlmann calculations, and 80% approaching the surface. So you are very far from 'pure model'.

    Differences between model 'A' and 'B' are tipically not very significant, and depends of the dive type ( Air, Tx or other Gases ), because table B differences concerns only Nitrogen coeffs.

    Finally, if you calculates the same RunTime with PastoDeco and DecoPlanner, you have same results.
    E.g. 80meters, 15min, Tx 14/50 w/ EAN50.
    PastoDeco: 80'
    DecoPlan: 77'

  7. #7
    RBW Member Igor P is just really nice Igor P is just really nice Igor P is just really nice Igor P is just really nice Igor P is just really nice Igor P is just really nice Igor P is just really nice Igor P is just really nice Igor P is just really nice Igor P is just really nice Igor P is just really nice Igor P's Avatar
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    Re: Re: PastoDeco 2.8.2 tech dive planner available

    Quote Originally Posted by TheSnake  View Original Post
    Hi,
    theoretically the 'A' table is a 'pure' Buhlmann deco model, subset B is a set 'A' with very small changes in middle compartments.
    However, PastoDeco, as others softwares does not implement 'pure' Buhlmann Model, but modified with application of Erik Baker's Gradients Factors.

    This means that, if you use 30-80 GF settings, at the bottom you authorizes only 30% of maximum delta pressure derived from original Buhlmann calculations, and 80% approaching the surface. So you are very far from 'pure model'.

    Differences between model 'A' and 'B' are tipically not very significant, and depends of the dive type ( Air, Tx or other Gases ), because table B differences concerns only Nitrogen coeffs.

    Finally, if you calculates the same RunTime with PastoDeco and DecoPlanner, you have same results.
    E.g. 80meters, 15min, Tx 14/50 w/ EAN50.
    PastoDeco: 80'
    DecoPlan: 77'
    It is not only sum of time important but shape too. Beside this by Buhlman theory "A" set of values should not be used for diving but "B" should be. And for use in dive computers "C" set.
    Same is published in Eric's papers.
    So geave divers a chance to use "B" and "C" sets of M values.

    DecoPlan is not a benchmark for CCR decoplanning. It has no multilevel and CCR capability, except if it was added lately.

    Igor P

    Sent from my PAP4500DUO using Tapatalk 2
    Last edited by Igor P; 28th October 2014 at 01:45.

  8. #8

    Re: PastoDeco 2.8.2 tech dive planner available

    Quote Originally Posted by Igor P  View Original Post
    It is not only sum of time important but shape too. Beside this by Buhlman theory "A" set of values should not be used for diving but "B" should be. And for use in dive computers "C" set.
    Same is published in Eric's papers.
    So geave divers a chance to use "B" and "C" sets of M values.

    DecoPlan is not a benchmark for CCR decoplanning. It has no multilevel and CCR capability, except if it was added lately.

    Igor P

    Sent from my PAP4500DUO using Tapatalk 2
    Hi,
    DecoPlan has multilevel capability. not CCR.

    If you plan a multilevel dive as this:



    and the same in PastoDeco:




    then compare two plans:


    Runtimes are practically the same.

  9. #9
    RBW Member Igor P is just really nice Igor P is just really nice Igor P is just really nice Igor P is just really nice Igor P is just really nice Igor P is just really nice Igor P is just really nice Igor P is just really nice Igor P is just really nice Igor P is just really nice Igor P is just really nice Igor P's Avatar
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    Re: PastoDeco 2.8.2 tech dive planner available

    Quote Originally Posted by TheSnake  View Original Post
    Hi,
    DecoPlan has multilevel capability. not CCR.

    If you plan a multilevel dive as this:



    and the same in PastoDeco:




    then compare two plans:


    Runtimes are practically the same.
    Trouble is when you try to calculate true multilevel dive - sawtooth (yoyo) dive.

    DecoPlanner does not calculate all multilevel as it should, from my opignion. Even if Eric was coworking. DIR folks does not do yoyo dives so they did not implement that kind of multilevel. The one they did is simple, the other is not that simple to implement.

    Igor P

  10. #10

    Re: PastoDeco 2.8.2 tech dive planner available

    Hi Igor,
    I tested a yoyo multilevel CCR dive, comparing PastoDeco and iDeco
    with same settings:



    Results are very close.
    Cannot try DecoPlan because CCR is not supported.

    The same dive planned w/ V Planner VPM+2:
    1st stop at 45
    42m 1 min
    39m 1 min
    36m 1 min
    33m 1 min
    30m 2 min
    27m 2 min
    24m 3 min
    21m 3 min
    18m 4 min
    15m 6 min
    12m 6 min
    9m 8 min
    6m 12 min
    3m 17 min
    Total Runtime: 103 min

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