GdalQuery.ReclassificationByAttributeTable Property
Gets or sets an attribute variable that will reclassify raster cell values.
Syntax
public AttributeVariable< System.Double > ReclassificationByAttributeTable { get; set; }Property Value
Default: null
An attribute variable that will reclassify the raster cell values.
Remarks
This property can be useful when you have a thematic raster dataset with an associated raster attribute table, and you want to replace the integers by numeric values from one or more columns of the table.
For example, let us say that you have a raster dataset with a raster attribute table like this:
VALUE | LAND_COVER | HEIGHT |
|---|---|---|
11 | "Open Water" | 0.0 |
21 | "Residential" | 15.0 |
31 | "Barren land" | 0.0 |
41 | "Deciduous Forest" | 20.0 |
42 | "Evergreen Forest" | 30.0 |
43 | "Mixed Forest" | 25.0 |
51 | "Shrubland" | 5.0 |
71 | "Grasslands" | 0.0 |
where the HEIGHT column gives an estimated height of the land cover type. The raster cells in the dataset contains the VALUE integers, but this query property can be used to tell the ReadOperator to reclassify them to their estimated heights.
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Platforms
Windows, Linux, Android