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30 lines
757 B
30 lines
757 B
<?php
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/**
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* Returns the normalized coordinate from EXIF array.
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* @return string Normalized coordinate as float number (degrees).
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*/
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function getGPSCoordinate($coordinate, $ref) {
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$degrees = count($coordinate) > 0 ? formattedToFloatGPS($coordinate[0]) : 0;
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$minutes = count($coordinate) > 1 ? formattedToFloatGPS($coordinate[1]) : 0;
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$seconds = count($coordinate) > 2 ? formattedToFloatGPS($coordinate[2]) : 0;
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$flip = ($ref == 'W' || $ref == 'S') ? -1 : 1;
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return $flip * ($degrees + (float)$minutes / 60 + (float)$seconds / 3600);
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}
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function formattedToFloatGPS($coordinate) {
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$parts = explode('/', $coordinate, 2);
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if (count($parts) <= 0) return 0;
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if (count($parts) == 1) return $parts[0];
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return (float)$parts[0] / $parts[1];
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}
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?>
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