Oracle Spatial User's Guide and Reference - InfoLab

LRS Operations
present to derive the location from a specified measure. The measure information of
intermediate shape points will automatically be populated if measure values are not
assigned.
7.5.2 Redefining a Geometric Segment
You can redefine a geometric segment to replace the existing measures of all shape
points between the start and end point with automatically calculated measures.
Redefining a segment can be useful if errors have been made in one or more explicit
measure assignments, and you want to start over with proportionally assigned
measures.
Figure 7–9 shows the redefinition of a segment where the existing (before) assigned
measure values are not proportional and reflect widely varying gaps.
Figure 7–9 Redefining a Geometric Segment
0
0
After the segment redefinition in Figure 7–9, the populated measures reflect
proportional distances along the segment.
7.5.3 Clipping a Geometric Segment
You can clip a geometric segment to create a new geometric segment out of an
existing geometric segment, as shown in Figure 7–10, part a.
7-12 Oracle Spatial User’s Guide and Reference
88
22 44 66 91 94 98 99
Before Segment Redefinition
10 20 30 40 50 60 70 80 90
After Segment Redefinition
97
Assigned
100 Measures
100
Populated
Measures
Assigned
Measures
Populated
Measures