The line parameter is a definition of (each) transect line, specified by the geographic coordinates of its starting point (easting, northing), the angle and direction of its travel (azimuth), and its distance (distance).
The azimuth is an angle, in degrees, measured to the east of north. The distance is in map units (meters for a metered database, like UTM).
The null parameter can optionally be set to change the character string representing null values.
Last changed: $Date: 2008-05-16 21:09:06 +0200 (Fri, 16 May 2008) $
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