Oracle Spatial User's Guide and Reference - InfoLab

SDO_UTIL.SIMPLIFY
NULL,
SDO_ELEM_INFO_ARRAY(1,2,1), -- one line string, straight segments
SDO_ORDINATE_ARRAY(
2,2,0, -- Starting point - Exit1; 0 is measure from start.
2,4,2, -- Exit2; 2 is measure from start.
8,4,8, -- Exit3; 8 is measure from start.
12,4,12, -- Exit4; 12 is measure from start.
12,10,NULL, -- Not an exit; measure automatically calculated and filled.
8,10,22, -- Exit5; 22 is measure from start.
5,14,27) -- Ending point (Exit6); 27 is measure from start.
),
6 -- threshold value for geometry simplification
) FROM DUAL;
SDO_UTIL.SIMPLIFY(SDO_GEOMETRY(3302,--LINESTRING,3DIMENSIONS(X,Y,M),3RDISLINEARR
--------------------------------------------------------------------------------
SDO_GEOMETRY(3302, NULL, NULL, SDO_ELEM_INFO_ARRAY(1, 2, 1), SDO_ORDINATE_ARRAY(
2, 2, 0, 12, 4, 12, 5, 14, 27))
Figure 19–1 shows the result of this example. In Figure 19–1, the thick solid black
line is the resulting geometry, and the thin solid light line between the start and end
points is the input geometry.
Spatial Utility Subprograms 19-33