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Tema: Aventura - track lenght

  1. #1
    Fecha de ingreso
    02 Jul, 10
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    Predeterminado Aventura - track lenght

    I recorded a track. It's 1200 m long about 2011-05-21-01_Valleremita_eremo RECORDED.TRK.
    The same route over a map drawn by CompeGPS is long 1676 m.Vallerimita_eremo_painted.TRK

    How can a difference so important on the same path?

    I am attaching the two-track, for your comments and opinions.

    Best regards.

  2. #2
    Fecha de ingreso
    28 Apr, 10
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    Predeterminado

    First you have to understand that there are no real distance values in the trackdata.
    The distances always will be calculated.
    Inside Twonav + CGPSL you can set a value which determines, if recorded positions will be used or not to calculate the distance.
    This value is the "min. moving speed" in advanced settings in Twonav or in the CGPSL Options for track menu bar "file=>options=<tracks".
    I suppose it's set to "0" in your CGPSL installation
    ----------------------
    Gruss
    regards
    saludos
    cordialement

    Gert

    www.Twonav-gps.de - - - www.garda-gps.de for Twonav

  3. #3
    Fecha de ingreso
    02 Jul, 10
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    20

    Predeterminado

    In twonav this value is set as 1.4 km/h

    In CompeGPS this value is always 1.4 km/h.

  4. #4
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    28 Apr, 10
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    Predeterminado

    Ok, now i got it.

    Drawed tracks doesn't have the timestamp which is needed to determine the speed which itself is needed for the filter (min. moving speed)
    So with drawed tracks you got results like as you have set it to "0".

    Change it to "0" in CGPSL load your tracklog and you will see the 1,6km
    ----------------------
    Gruss
    regards
    saludos
    cordialement

    Gert

    www.Twonav-gps.de - - - www.garda-gps.de for Twonav

  5. #5
    Fecha de ingreso
    02 Jul, 10
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    Predeterminado

    Thank you very much! Great!!!!!
    But in twonav, i see 1200 m.
    How can obtain the correct result?
    Set 0 su advanced option called "min. moving speed"?

    P.S. Just a another question: ma the really track lenght is 1600 o 1200 m.?
    Última edición por gabmon.; 29/05/2011 a las 14:32

  6. #6
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    28 Apr, 10
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    Predeterminado

    Cita Iniciado por gabmon. Ver mensaje
    But in twonav, i see 1200 m.
    for all the three different type of lenght:
    - linear distance
    - projected
    - projected with height
    this would normally only be the case if it would be a straight flat line.

    Cita Iniciado por gabmon. Ver mensaje
    How can obtain the correct result?
    Set 0 su advanced option called "min. moving speed"?
    1 to 1,4 gives the best results for me

    Anway the setting you use may be different depending of your activity.
    example:
    setting 5 will drop the most point of a hiker while a cyclist won'tbe affected by it

    Cita Iniciado por gabmon. Ver mensaje
    P.S. Just a another question: ma the really track lenght is 1600 o 1200 m.?
    There are things which could influenced the results.
    e.g you have only 50 points in tracklog but 106 in the drawed one.
    There is only one really sure way and it's not a joke, take a meter and measure it.
    Maybe you should, if possible, go, drive the same way and increase the count of tracklogpoints.
    ----------------------
    Gruss
    regards
    saludos
    cordialement

    Gert

    www.Twonav-gps.de - - - www.garda-gps.de for Twonav

  7. #7
    Fecha de ingreso
    02 Jul, 10
    Mensajes
    20

    Predeterminado

    Cita Iniciado por papaluna Ver mensaje
    for all the three different type of lenght:
    - linear distance
    - projected
    - projected with height
    this would normally only be the case if it would be a straight flat line.


    1 to 1,4 gives the best results for me

    Anway the setting you use may be different depending of your activity.
    example:
    setting 5 will drop the most point of a hiker while a cyclist won'tbe affected by it


    There are things which could influenced the results.
    e.g you have only 50 points in tracklog but 106 in the drawed one.
    There is only one really sure way and it's not a joke, take a meter and measure it.
    Maybe you should, if possible, go, drive the same way and increase the count of tracklogpoints.
    Sorry but with the question "But in twonav, i see 1200 m.
    How can obtain the correct result?Set 0 su advanced option called "in. moving speed?" i'd like ask if it's correct set 0 this value also in TwoNav.

    Which side-effect could i have using too low min. moving speed value in TowNav Aventura advanced option?

  8. #8
    Fecha de ingreso
    28 Apr, 10
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    1,250

    Predeterminado

    Cita Iniciado por gabmon. Ver mensaje
    Which side-effect could i have using too low min. moving speed value in TowNav Aventura advanced option?
    Setting this value only effects the calculation of the distances.
    It doesn't change the trackdata itself.
    ----------------------
    Gruss
    regards
    saludos
    cordialement

    Gert

    www.Twonav-gps.de - - - www.garda-gps.de for Twonav

  9. #9
    Fecha de ingreso
    02 Jul, 10
    Mensajes
    20

    Predeterminado

    Very well!

    Another question

    I menu Parameters-> Veicle->Setting, i can specify the cruise speed.
    It's default value is always 1,4.

    What's means this parameter?


    Have same effect on tracklog?

  10. #10
    Fecha de ingreso
    28 Apr, 10
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    1,250

    Predeterminado

    Cita Iniciado por gabmon. Ver mensaje
    I menu Parameters-> Veicle->Setting, i can specify the cruise speed.
    It's default value is always 1,4.
    Are you sure, i have yet not looked but might remember different values.
    Anyway
    Cita Iniciado por gabmon. Ver mensaje
    What's means this parameter?
    Afaik it only will be used for calculation of some data fields shown in data bar or data page.
    - Time to destination (cruise)
    - Time to Next (cruise)

    Cita Iniciado por gabmon. Ver mensaje
    Have same effect on tracklog?
    No effect
    ----------------------
    Gruss
    regards
    saludos
    cordialement

    Gert

    www.Twonav-gps.de - - - www.garda-gps.de for Twonav

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