| | 1 | == DVO Database Tools == |
| | 2 | |
| | 3 | This page describes several tools for managing DVO databases. |
| | 4 | |
| | 5 | === Merging DVO Databases : dvomerge === |
| | 6 | |
| | 7 | * dvomerge (input1) and (input2) to (output) : create a new database from two existing databases |
| | 8 | * dvomerge (input) into (output) : merge a DVO database into another, existing database |
| | 9 | |
| | 10 | === Convert DVO Database Formats : dvoconvert === |
| | 11 | |
| | 12 | * dvoconvert (input) to (output) |
| | 13 | |
| | 14 | This program can affect three aspects of the DVO database: the format, the mode, and the depth. The format specifies the schema -- what fields are saved and some aspects of precision. Available options (2010.04.02) are: PS1_V2, PS1_V1, PS1_DEV_2, PS1_DEV_1, PANSTARRS_DEV_1, PANSTARRS_DEV_0, ELIXIR, LONEOS. The older formats take less space, but in general have less information. The mode specifies if the Average, Measure, Secfilt, and Missing tables stored as separate files (mode = SPLIT) or as a single file (mode = MEF)). The MEF mode is a bit more compact, but does not allow for high throughput I/O like the SPLIT mode. The depth specifies the resolution of the spatial partitioning. The depth currently may have values of 0 - 4. These correspond to |
| | 15 | |
| | 16 | * 0 = full sky in one table |
| | 17 | * 1 - 15 deg DEC bands per table |
| | 18 | * 2 - DEC bands are divided in RA ranges |
| | 19 | * 3 - subdivision of the regions of 2 (== HST GSC layout) |
| | 20 | * 4 - finer subdivisions of the regions |
| | 21 | |
| | 22 | To specify the output mode, format, or depth use these options: |
| | 23 | |
| | 24 | * -D CATMODE (mode) |
| | 25 | * -D CATFORMAT (format) |
| | 26 | * -D SKY_DEPTH (depth) |
| | 27 | |
| | 28 | If these are not specified, the new database will use the values specified in your ptolemyrc configuration file system. |
| | 29 | |
| | 30 | Use 'gconfig' to check on the default values, eg gconfig CATMODE |
| | 31 | |
