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<xsd:documentation>True ("true" or "1") indicates that the well surface
point is the origin of this CRS.
False ("false" or "0") or not given indicates otherwise.</xsd:documentation>
<xsd:documentation>The angle of the Y axis from North (as described
in attribute northDirection). Defaults to zero. Positive clockwise.</xsd:documentation>
<xsd:documentation>A free-form description of the Y axis.
Examples would be 'parallel to the west side of the platform', or
'along the main entry road'.</xsd:documentation>
<xsd:documentation>True ("true" or "1") indicates that the X axis is rotated
counter-clockwise from the Y axis when viewed from above the earth looking down.
False ("false" or "0") or not given indicates a clockwise rotation.
Generally the X axis is rotated clockwise.</xsd:documentation>