OGC OpenGIS Association on the development of the geographical entity structure, methods of achieving the standards, Here is a COM/OLE achieving the standard, including point, line, surface, Spatial Reference System Implementation of a series of standards and norms, COM and CORBA two forms of technology. Components for the development of GIS or GIS-depth study to achieve the entity reference

99-050_OpenGIS_Simple_Features_Specification_For_OLECOM_Rev_1[1].1.pdf
99-054_OpenGIS_Simple_Features_Specification_For_CORBA_Revision_1[1].1.pdf

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