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Thread: hacking gps datacd

  1. #11
    Variable Bitrate
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    You can get free raw mapping data from the US census. They are called Tiger/line files. I downloaded the 6 or 7 cd's full of data,
    Ziplock, would you mind telling me where you downloaded these files? are they vector based?

    I've been trying to "hack" a navtech CD used in a BMW gpssystem, but had no luck. Seems the main-file is composed out of multiple compressed files, I have no I idea how to "uncompose" them so that I have all the .gz files individually..
    If at first you don't succeed.........
    destroy all evidence you tried

    for info on t6369c LCD or Presslab's powersupply check:
    http://www.namms.tk <=updated!!

  2. #12
    FLAC
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    The census bureau charges $60 per cd, but once you get that cd you are fully authorized to redistribute it, that's how it can be obtained for free.

    Or you can download it for free, they hide this pretty well:

    ftp://www.census.gov/pub/geo/www/tiger/tiger2k/

    I'm not sure if they are vector based or not. All I know is that they need a considerable amount of conversion before the data can be of any real use. Also, the maps tend to be less accurate that what you are probably used to.

  3. #13
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    ah thanks, too bad that it's only the US though...
    If at first you don't succeed.........
    destroy all evidence you tried

    for info on t6369c LCD or Presslab's powersupply check:
    http://www.namms.tk <=updated!!

  4. #14
    FLAC Skraggy_uk's Avatar
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    don't know about the 3d part, but have a look at GPSS for windows.

    Free for non-commercial, includes limited maps, and has map downloads for some areas, plus advice and info about converting other maps.

    Might be able to do what you want.
    Includes a demo mode if you don't have an NMEA GPS system attahced, and must be registered to get rid of an annoying message. Registration is free for private use.
    4x4 in a turbo stylee.

  5. #15
    FLAC Skraggy_uk's Avatar
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    BTW MarsJell, don't know what you drive, but it can't be slower than my old Skoda Favorit
    4x4 in a turbo stylee.

  6. #16
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    wanna make a bet skraggy? I drive a 2cv
    If at first you don't succeed.........
    destroy all evidence you tried

    for info on t6369c LCD or Presslab's powersupply check:
    http://www.namms.tk <=updated!!

  7. #17
    FLAC Skraggy_uk's Avatar
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    Originally posted by marsjell
    wanna make a bet skraggy? I drive a 2cv
    Ok cool, do you ever take the front seats out in the summer as picnic chairs?

    I love the old 2cv, especially those with the full roll back fabric roof.

    And it is almost impossible to roll one, just feels like they are going to round every corner.

    Ha, and it would be excellent to hear the sound system in car that puts out more KW than the engine.
    4x4 in a turbo stylee.

  8. #18
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    Yeah I like them too, in fact we're modifying my girlfriends 2cv to look like an old one, bought here a bonnet of '56 2cv for here birthday, still needs aspray of paint.. after the bonnet is fitted I'm gonna weld the back windows shut and buy here the roof you discribed.

    I'll post a pic of me making a sharp corner soon, promissed one earlier on general discussion. I'm not sure if it will tilt as much as it did before as I now have something like 50 kg extra weight in the back

    to get back on topic. I know GPSS but I much rather have a vector based gps system and pref. one that will show me how to get from A to B
    If at first you don't succeed.........
    destroy all evidence you tried

    for info on t6369c LCD or Presslab's powersupply check:
    http://www.namms.tk <=updated!!

  9. #19
    FLAC Skraggy_uk's Avatar
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    Originally posted by marsjell
    Yeah I like them too, in fact we're modifying my girlfriends 2cv to look like an old one, bought here a bonnet of '56 2cv for here birthday, still needs aspray of paint.. after the bonnet is fitted I'm gonna weld the back windows shut and buy here the roof you discribed.

    I'll post a pic of me making a sharp corner soon, promissed one earlier on general discussion. I'm not sure if it will tilt as much as it did before as I now have something like 50 kg extra weight in the back

    to get back on topic. I know GPSS but I much rather have a vector based gps system and pref. one that will show me how to get from A to B
    Ok, that is true about GPSS being Bitmap based, but It does show you how to get from A-B, with turn indicators, and spoken commands as I understand it. I don't have th GPS system yet, so I'm only running GPSS in demo, but it certainly gave that impression.

    So are there plans to put a 1300 Citroen GS engine/gearbox and brakes into the 2CV?
    4x4 in a turbo stylee.

  10. #20
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    no nothing that drastic, I do have a visa motor with a bigger bore kit so it's 710cc with a faster camshaft & smaller flywheel that will go into my girlfriends 2cv. My 2cv will stay as it is....

    In the garden I have an extra chassis lying around, I'm thinking of building cv sahara. You know what those are? 4x4 by simply using two 2cv engines, one in the usual place and one in the back
    If at first you don't succeed.........
    destroy all evidence you tried

    for info on t6369c LCD or Presslab's powersupply check:
    http://www.namms.tk <=updated!!

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