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Thread: Google Earth for OSX

  1. #11
    Variable Bitrate viper24's Avatar
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    has anyone gotten the gps reading program to record files that GE can read yet? It seems easy. If we get this working we will have a nice mp3car.com homebrew GPS program. and with Dash_Run, we might be able to finally get something good goin here!
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  2. #12
    Constant Bitrate zapwizard's Avatar
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    I found a "cache proxy" program:
    http://tlog.dehumanizer.com/2005/09/...th-with-squid/

    What it does it run like a proxy and cache all data that you request. (can can do google earth)
    So in theory you can go beyond the 2000MB cache on GE.

  3. #13
    Low Bitrate SurgResDocMD's Avatar
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    zapwizard what file do I download, those are all exe. files?

  4. #14
    Constant Bitrate zapwizard's Avatar
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    It looks like it has to be built from the sourcecode.
    I don't have my USB puck yet so I haven't actualy tried it out yet.

  5. #15
    Newbie qkslvr's Avatar
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    How can we adjust the "Fly to" settings so it does not zoom out/pan so high/fast when going from one point to another that are far apart?
    Pictures never lie.
    Only Photoshop does.

  6. #16
    Constant Bitrate zapwizard's Avatar
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    It depends on what you are trying to do.
    Tools -> Options -> Control -> Advanced

    But if you want it to actual follow the path and do a "birds eye view", select just the "ROUTE" item and press PLAY.
    Otherwise it just zooms out and back in, rather then following the path.

  7. #17
    Constant Bitrate zapwizard's Avatar
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    Ok, so I got my GPS puck yesterday.
    Downloaded GPSbable for OSX.

    -It is very hard to find the compiled version, goto downloads, press the + next to version 1.2.5, and then click on MacGPSBabel-1.2.5.zip.

    In either case version 1.2.5 for OSX only supports Garmin and Magellian GPS units.

    So back to my earlier posts, does anyone want to write a script or small app to bridge NMEA data to KML?

  8. #18
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    I'm guessing it will go like this.

    1) get a basic gps program that just spits out the nmea data to a file every few seconds.
    2) have an applescript read this file and create a kml file
    3) have google earth read this kml file.

    problems and/or tough spots:
    -how to get the kml file to refresh
    -is google eath scriptable...i'm guessing it is, but how much?
    -can it be told to read kml files?

    I'd love to help out, but I don't have a gps mouse to test it out on.

    What program would you use for #1?

  9. #19
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    This solves #1:
    http://www.cs.sunysb.edu/~tony/392/G...dDirector.html

    Now if someone would check the scriptability of google earth we'd be all set (I can't right now as I am at work)

    EDIT: gpsy cost about $50 ($30 student) and provides some mapping capabilities itself. I'll bet there is a free version of something that reads the nmea data and either outputs it to the console or a file...either is good enough.

    This also solves #1
    http://www.macsimplegps.com/ but it doesn't help those who don't have a brand name receiver.

  10. #20
    Constant Bitrate zapwizard's Avatar
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    As long as I can pull all the data I need out of that it looks like it should work.

    Otherwise I found this:
    http://mysite.verizon.net/vzenuoqe/MacSoft.html
    But it would require a lot more decoding.

    Here is what I have figured out is needed for live KML tracking:

    From NMEA:
    -Latitude
    -Longitude
    -Altitude (optional)
    -Speed (optional)
    -Course

    This website has info on the NMEA sentence structure:
    http://www.commlinx.com.au/NMEA_sentences.htm

    Minumum required for KML file:
    -Latitude
    -Longitude
    -Heading

    Optional:
    -Range (Zoom based on current speed)
    -Altitude

    The minimum KML file is:
    Code:
    <?xml version="1.0" encoding="UTF-8"?>
    <kml xmlns="http://earth.google.com/kml/2.0">
    <Placemark>
    <name></name>
      <LookAt>
        <longitude>-97.815522808536</longitude>
        <latitude>32.88081563386183</latitude>
        <range>480.34159687574</range>
        <tilt>60</tilt>
        <heading>180</heading>
      </LookAt>
     </Placemark>
    </kml>
    Add this code for a tracker:
    Code:
     <Style>
        <IconStyle>
          <Icon>
            <href>root://icons/palette-4.png</href>
            <x>32</x>
            <y>128</y>
            <w>32</w>
            <h>32</h>
          </Icon>
        </IconStyle>
      </Style>
        <Point>
        <coordinates>-97.815522808536,32.88081563386183,0</coordinates>
        </Point>

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