Lines intersecting that has a point in a polygon

Question

Hi Spatial Community,
I would like to get your expertise in trying to see how can we get this done via Oracle Spatial.
The requirement is to write a file
- passed intersection of line that have a point within a polygon
- failed intersections( doe snot have any line intersecting) that have a point within a polygon
Any clues is much appreciated.
Edited by: CrackerJack on Feb 25, 2013 12:46 PM

Answer 1

Comments before have been pretty much on the money perhaps I might just add
Using the cola_markets example from the manual...
-- Return the topological intersection of two geometries.
SELECT SDO_GEOM.SDO_INTERSECTION(c_a.shape, c_c.shape, 0.005)
FROM cola_markets c_a, cola_markets c_c
WHERE c_a.name = 'cola_a' AND c_c.name = 'cola_c';
SDO_GEOM.SDO_INTERSECTION(C_A.SHAPE,C_C.SHAPE,0.005)(SDO_GTYPE, SDO_SRID, SDO_PO
SDO_GEOMETRY(2003, NULL, NULL, SDO_ELEM_INFO_ARRAY(1, 1003, 1), SDO_ORDINATE_ARR
AY(4, 5, 3, 3, 5, 3, 5, 5, 4, 5))
So that finds the ones that DO interact
To do the DISJOINT: The boundaries and interiors do not intersect.
Use SDO_ANYINTERACT as someone else also suggested
The expression SDO_ANYINTERACT(geometry1,geometry2) = 'TRUE' evaluates to TRUE for object pairs that have the ANYINTERACT topological relationship, and FALSE otherwise.
The False version which your will need
SQL> SELECT c.mkt_id, c.name
FROM cola_markets c
WHERE SDO_ANYINTERACT(c.shape,
SDO_GEOMETRY(2003, NULL, NULL,
SDO_ELEM_INFO_ARRAY(1,1003,3),
SDO_ORDINATE_ARRAY(4,6, 8,8))
) != 'TRUE';
2 3 4 5 6 7
MKT_ID NAME
3 cola_c
5 cola_d5
And for completeness the reverse
SQL> SELECT c.mkt_id, c.name
FROM cola_markets c
WHERE SDO_ANYINTERACT(c.shape,
SDO_GEOMETRY(2003, NULL, NULL,
SDO_ELEM_INFO_ARRAY(1,1003,3),
SDO_ORDINATE_ARRAY(4,6, 8,8))
) = 'TRUE';
2 3 4 5 6 7
MKT_ID NAME
1 cola_a
2 cola_b
4 cola_d
Cheers
Rich