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mappoint coordinate trouble WGS-stuff ?

This is a discussion on mappoint coordinate trouble WGS-stuff ? within the MapPoint Desktop Discussion forums, part of the Map Forums category; Hello, I am developing software to show the location of vicitms in disaster areas. The positions are in WGS-84 format ...

  1. #1
    Anonymous is offline Senior Member Black Belt
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    mappoint coordinate trouble WGS-stuff ?

    Hello,
    I am developing software to show the location of vicitms in disaster areas.
    The positions are in WGS-84 format and we want to project them in mappoint 2002 Europe (trial for the moment) on the map.
    Currently we are setting up an application which utilises MS-Mappoint Europe 2002 for projecting vehicle positions on the map in realtime.
    We are actually creating a pushpin with the lat/loc coordinates to do this.
    Our problem is that when we create a pushpin, it gets projected on the map but the position is incorrect.
    There seems to be a deviation of approximately 10 kilometres...
    When we use the location sensor tool to verify the position on the map , even the location sensor seems to measure a false lat/lon on the map.
    We checked the map datum of the positions which is WGS84 . This is the format used also by MS-MAPPOINT , however we seem to notice this is probably not the case...
    Is there any menu where we can setup the map datum or do we have another problem ?

    P.S. When projecting this position on other mapping programs e.g. man 'n guide, police tracking systems, ... the position seems to be okay...

    Could you advise me on this problem please ?

    Thanks very much

  2. #2
    Eric Frost's Avatar
    Eric Frost is offline Administrator Black Belt
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    What country(ies) are you working with? I've heard that coordinates are not good in Ireland. Can you try a different country and see if you have the same problem?

    The other thing you have to make sure of is that you are using Decimals for the lat/lon, not degrees-minutes.

    Examples

    Correct:
    -81.2346, 36.6923
    10.5234, 44.9234

    Wrong:
    -70D 20M 15S, 20D 55M 24S
    -05D 40M 59S, 50D 40M 10S

    See this page for more info:
    http://www.mp2kmag.com/latlong.asp

    Eric
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  3. #3
    Anonymous is offline Senior Member Black Belt
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    mappoint refreshes pushpin position updates very slowly...

    Hello Eric,

    Thank you very much for your help.
    It seemed that the lat/lon format was decimal in mappoint and not dd/mm/ss.
    Another question... Currently we are creating a dataset of pushpins to show positions, coming from a database, on the map.
    However when we have more than 10 pushpins, that are updated every 30 seconds, the process of redrwaing the pushpins becomes very slow. Is there a solution for this problem ?
    Currently we are using mappoint 2002 trial version for evaluation.

    Best Regards & many thanks,
    Tom

  4. #4
    matt1168 is offline Junior Member Yellow Belt
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    Hi, are you deleting and add new pushpins in the new position or moving existing pushpins? moving existing push pins is much faster

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