RasterCacheFilter Enumeration
Specifies the filter to use when creating down-sampled raster overviews in a raster cache.
NuGet/Assembly: Carmenta.Engine.5.16.2.nupkg (in the CECore assembly)
Syntax
public enum RasterCacheFilterValues
| Value name | Value | Description |
|---|---|---|
| Auto | 0 | Automatically selects between Average or Vote, depending on if the rasters read by the dataset are continuous or not. |
| Vote | 4 | The raster cell value is selected by choosing the raster value that occurs the most times in the corresponding area from the previous level. |
| Average | 5 | The raster cell value is selected by calculating the average value of the cells in the corresponding area from the previous level. |
| Min | 6 | The raster cell value is selected as the minimum value of the cells in the corresponding area from the previous level. |
| Max | 7 | The raster cell value is selected as the maximum value of the cells in the corresponding area from the previous level. |
Remarks
Overviews in a raster cache are always created by down-sampling the original rasters or a previous overview level by a factor of 2, i.e. each raster cell in the overview covers exactly four cells in the previous level.
Please note that some values may not make sense for all type of rasters. For example, using Average for an indexed raster with a color table will probably not produce any usable result.
Platforms
Windows, Linux, Android