1GIS::Distance::ConstantUss(e3rpmC)ontributed Perl DocumeGnItSa:t:iDoinstance::Constants(3pm)
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6 GIS::Distance::Constants - Constants used by formula classes.
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9 $KILOMETER_RHO
10 Number of kilometers around the equator of the earth.
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12 6371.64
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14 $DEG_RATIO
15 Number of units in a single decimal degree (lat or lon) at the equator.
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17 0.0174532925199433
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19 This value is derived from:
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21 $gis = GIS::Distance->new( 'Haversine' );
22 $DEG_RATIO = $gis->distance( 10,0 => 11,0 )->km() / $KILOMETER_RHO;
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25 See "SUPPORT" in GIS::Distance.
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28 See "AUTHORS" in GIS::Distance.
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31 See "LICENSE" in GIS::Distance.
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35perl v5.34.0 2022-01-21 GIS::Distance::Constants(3pm)