Oracle Spatial User's Guide and Reference - InfoLab

SDO_LRS.VALID_GEOM_SEGMENT
SDO_LRS.VALID_GEOM_SEGMENT
Format
Description
Parameters
Usage Notes
Examples
SDO_LRS.VALID_GEOM_SEGMENT(
geom_segment IN SDO_GEOMETRY
[, dim_array IN SDO_DIM_ARRAY]
) RETURN VARCHAR2;
Checks if a geometry object is a valid geometric segment.
geom_segment
Geometric segment to be checked for validity.
dim_array
Dimensional information array corresponding to geom_segment, usually selected
from one of the xxx_SDO_GEOM_METADATA views (described in Section 2.4).
This function returns TRUE if geom_segment is valid and FALSE if geom_
segment is not valid.
Measure information is assumed to be stored in the last element of the SDO_DIM_
ARRAY in the Oracle Spatial metadata.
This function only checks for geometry type and number of dimensions of the
geometric segment. To further validate measure information, use the SDO_LRS.IS_
GEOM_SEGMENT_DEFINED function.
The _3D format of this function (SDO_LRS.VALID_GEOM_SEGMENT_3D) is
available. For information about _3D formats of LRS functions, see Section 7.4.
The following example checks if the geometric segment representing Route 1 is
valid. (This example uses the definitions from the example in Section 7.7.)
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