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Available spots in the County Parks

 
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Moe the Sleaze
Geocacher


Joined: 10 Jan 2003

Posts: 1145
Location: Champlin, MN

PostPosted: Tue Dec 02, 2003 6:24 pm    Post subject: Available spots in the County Parks Reply with quote

Feel free to move this under "Park relations" if you think it belongs there.

IMO, it would be handy to have a page on the web site that listed the various Ramsey and Three Rivers parks, how many caches were currently in each, and how many openings are left. Would that be possible?
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"Hi, I'm Moe, or as the women know me - Hey! You in the bushes."
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rickrich
Geocacher


Joined: 06 Jul 2003

Posts: 673

PostPosted: Wed Dec 03, 2003 11:48 am    Post subject: Reply with quote

This could certainly be accomplished automatically by using the "polygon" filtering capability of gpsbabel. I volunteer to do the scripting to generate such a page if somebody else will enter sufficiently accurate polygons for each of the parks.

Here is the relevant documentation from gpsbabel.

Code:
    POLYGON

        The polygon filter includes points if they are inside of a polygon.
        A polygon file looks like an arc file, except that the arc it
        describes must be a closed cycle.  That is, for a simple polygon,
        the first and last points must be the same.  Here's a square:

          # A square (not really) polygon
          41.0000       -85.0000
          41.0000       -86.0000
          42.0000       -86.0000
          42.0000       -85.0000
          41.0000       -85.0000

        Polygons may include islands and holes.  To specify an island or a
        hole, just append it to the main polygon.

        As with the arc filter, you specify a polygon by specifying the name
        of the polygon that contains it, using the file option.  You can also
        specify the exclude option, which reverses the operation of the filter
        so that it only includes points that are NOT in the polygon.

        Note that this filter currently will not work properly if your polygon
        contains one or both poles or if it spans the line of 180 degrees
        east or west longitude.

        For example, assume you have a polygon file that defines the border of
        your county, called mycounty.txt.  This command line will give you only
        the points in your county:

        gpsbabel -i geo -f 1.loc -x polygon,file=mycounty.txt \
                 -o mapsend -F 2.wpt
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