Interpolation Configuration Options
The program_options configuration file currently controls the interpolation method selected by the value of InterpCode set. The interpolation may be part of an overall algorithm applied to the data.
On 2009/07/08 20:28 the possible values for InterpCode are:
| InterpCode | Description | Status |
|---|---|---|
| 1 | Inverse Distance Square over all neighbours. | OK |
| 2 | Inverse Distance Square within a radius determined by the parameter IInterpolationDistance | OK (Example of Numbers of Neighbours) |
| 3 | The same as “2” with a correction for altitude in place (applicable only for rainfall). | OK |
| 4 | Inverse Distance Square using neighbours chosen from an external station list. | To be validated. |
| 5 | Linear interpolation using neighbours chosen from an external station list. | Obsolete … replaced by “7” |
| 6 | The same as “3” but with addedd logic to filter neighbours based on like wet or dry conditions. | Experimental. |
| 7 | Delaunay triangulation to choose neighbours followed by linear interpolation. | OK |
| 8 | Dummy code block that returns a value of -10 for all interpolations. | Placeholder, sometimes used as a dummy call in testing. |
| 9 | This is a placeholder for spatial interpretation for temperature. Currently the algorithm just picks the same value as the nearest neighbour with a measurement. | Development |
| 10 | Another placeholder for spatial interpretation for temperature - a inverse distance square is performed but this is just for test purposes. | Development |
| other | Other values are handled gracefully and no interpolation is performed. | OK |