GPA1: Geophysical Geometry
Entity Relationship Diagram for Epicentre V3.0 Data Model Copyright (C) 2001 POSC, All Rights Reserved.
binset_grid Each seismic_traverse may node definition one and only one binset_grid. seismic_traverse Each binset_grid may define nodes for one or more seismic_traverse. part Each seismic_traverse may composed of one or more seismic_traverse. whole Each seismic_traverse may part of one and only one seismic_traverse. seismic_traverse Each geophysical_display may represent one and only one seismic_traverse. geophysical_display Each seismic_traverse may represented by one or more geophysical_display. begin_point Each geophysical_geometry_segment may begin at one and only one geophysical_point. start_of_segment Each geophysical_point may be the start of one or more geophysical_geometry_segment. end_point Each geophysical_geometry_segment may end at one and only one geophysical_point. end_of_segment Each geophysical_point may be the end of one or more geophysical_geometry_segment. geometry_segment Each geophysical_display may represent one and only one geophysical_geometry_segment. display Each geophysical_geometry_segment may represented by one or more geophysical_display. SELF\earth_feature.kind Each geophysical_acquisition_point may be fundamentally defined by one and only one earth_feature_class. Each earth_feature_class may define the nature of one or more earth_feature. derived_from Each geophysical_geom_derivation must be derived from one and only one geophysical_geometry_set. used_by Each geophysical_geometry_set may be used by one or more geophysical_geom_derivation. used_by Each geophysical_geom_derivation must be used by one and only one geophysical_geometry_set. derived_from Each geophysical_geometry_set may be derived from one or more geophysical_geom_derivation. composition Each geophysical_geometry_set may be composed of one or more geophysical_geometry_set. part_of Each geophysical_geometry_set may be part of one and only one geophysical_geometry_set. geometry_set Each geophysical_geometry_segment must station definition one and only one geophysical_geometry_set. geometry_segment Each geophysical_geometry_set may be represented by one or more geophysical_geometry_segment. geometry_set Each geophysical_acquisition_point must represent a node in one and only one geophysical_geometry_set. acquisition_point Each geophysical_geometry_set may have a node referenced by one or more geophysical_acquisition_point. processing_grid Each geophysical_processing_point must represent a node in one and only one geophysical_processing_grid. processing_point Each geophysical_processing_grid may have a node referenced by one or more geophysical_processing_point. geometry_set Each geophysical_processing_grid must represent one and only one geophysical_geometry_set. processing_grid Each geophysical_geometry_set may be represented by one or more geophysical_processing_grid. binset_grid binset_grid_variant earth_feature_class geophysical_acquisition_area geophysical_acquisition_point geophysical_display geophysical_geom_derivation geophysical_geometry_segment geophysical_geometry_set geophysical_point geophysical_processing_grid geophysical_processing_point potential_field_geometry_set potential_field_proc_grid seismic_geometry_set seismic_traverse