POSC Specifications Version 3.0 |
Epicentre Standard Values ref_axis_orientation |
identifier | description | source _content | source | version | status |
---|---|---|---|---|---|
ref _version .identifier | |||||
north | The axis is oriented so that positive is in the north direction. | POSC | POSC | epicentre 3.0 | current |
east | The axis is oriented so that positive is in the east direction. | POSC | POSC | epicentre 3.0 | current |
south | The axis is oriented so that positive is in the south direction. | POSC | POSC | epicentre 3.0 | current |
west | The axis is oriented so that positive is in the west direction. | POSC | POSC | epicentre 3.0 | current |
up | The axis is oriented so that positive is in the upward direction. That is, the dot product of the tangent to the axis at the origin with a strictly vertical vector is positive. | POSC | POSC | epicentre 3.0 | current |
down | The axis is oriented so that positive is in the downward direction. That is, the dot product of the tangent to the axis at the origin with a strictly vertical vector is negative. | POSC | POSC | epicentre 3.0 | current |
north-east | The axis is oriented so that positive is predominantly in the north-east direction. | POSC | POSC | epicentre 3.0 | current |
north-west | The axis is oriented so that positive is predominantly in the north-west direction. | POSC | POSC | epicentre 3.0 | current |
south-west | The axis is oriented so that positive is predominantly in the south-west direction. | POSC | POSC | epicentre 3.0 | current |
south-east | The axis is oriented so that positive is predominantly in the south-east direction. | POSC | POSC | epicentre 3.0 | current |
northerly | The axis is oriented so that positive is predominantly in the north direction, although the actual direction may vary slightly from north. | POSC | POSC | epicentre 3.0 | current |
easterly | The axis is oriented so that positive is predominantly in the east direction, although the actual direction may vary slightly from east. | POSC | POSC | epicentre 3.0 | current |
southerly | The axis is oriented so that positive is predominantly in the south direction, although the actual direction may vary slightly from south. | POSC | POSC | epicentre 3.0 | current |
westerly | The axis is oriented so that positive is predominantly in the west direction, although the actual direction may vary slightly from west. | POSC | POSC | epicentre 3.0 | current |
right-handed | The axis is oriented with respect to the two previous axes so that the three axes form a right-handed system. In particular, the dot product of the tangent at the zero location of this axis with the cross product of the other two axes is positive. | POSC | POSC | epicentre 3.0 | current |
left-handed | The axis is oriented with respect to the two previous axes so that the three axes form a left-handed system. In particular, the dot product of the tangent at the zero location of this axis with the cross product of the other two axes is negative. | POSC | POSC | epicentre 3.0 | current |