Opened 11 years ago
Closed 11 years ago
#648 closed defect (fixed)
Migrate origin to centre of sample-space
| Reported by: | Piero Campalani | Owned by: | Piero Campalani |
|---|---|---|---|
| Priority: | critical | Milestone: | 9.0 |
| Component: | applications | Version: | development |
| Keywords: | origin centre sample size pixel | Cc: | |
| Complexity: | Easy |
Description
Coverage encoding in petascopedb puts the origin in the centre of the sample space of a grid point, as by OGC/ISO recommendations.
Migration of existing pre-v9 coverages must follow this rule, hence shifting coordinates in ps_domain by half-pixel.
Change History (2)
comment:1 by , 11 years ago
| Status: | new → accepted |
|---|
comment:2 by , 11 years ago
| Resolution: | → fixed |
|---|---|
| Status: | accepted → closed |
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Origin shifted by half pixel for axis which are not referenced by CRS:1 and are not of type
t: in the old database it could happen that a temporal axis had (wrongly) CRS:1 reference system, whereas Petascope was assuming ANSI date.When migrating a
taxis, OGC:AnsiDate is assigned, hence not an indexed CRS. This means thattaxes do have a sample footprint (of 1 day), and time origin in the new database needs to be shifted to the centre of the day.See changeset:14b6a32.