This functor extracts the attributes and calculates basic statistics from a map and as a result creates a table that contains the extracted attributes.
Name | Type | Description |
---|---|---|
Map | Map | Map whose attributes will be extracted. |
Name | Type | Description | Default Value |
---|---|---|---|
Extract Dynamic Attributes | Bool | If true, the dynamic attributes will be calculated. | True |
Extract Statistical Attributes | Bool | If true, statistical attributes will be calculated. | False |
Name | Type | Description |
---|---|---|
Attributes | Lookup Table | Table containing the attributes extracted from a map. |
Map Algebra
This functor analyzes all map layers. The resulting table refers to all of them.
The functor employs a lookup table with keys to the attributes. Each key has a predefined name. This name can be used to retrieve the corresponding attribute in Calculate Map, Calculate Categorical Map, Calculate Value and Calculate Lookup Table.
If it is not possible to determine any of these attributes, the corresponding entry in the lookup table is left blank. It determines the maximum and the minimum values only when there is at least one non null cell on the map.
Key | Predefined Name | Description |
---|---|---|
1 | “lines” | number of lines |
2 | “columns” | number of columns |
3 | “cells” | number of cells (number of lines multiplied by the number of columns). |
4 | “layers” | number of layers |
5 | “cellHeight” | cell height (in meters) |
6 | “cellWidth” | cell width (in meters) |
7 | “cellArea” | cell area (in hectares) |
Key | Predefined Name | Description |
---|---|---|
8 | “nullCells” | number of null cells |
9 | “nonNullCells” | number of non null cells |
10 | “minCell” | minimum value (excluding null cells) |
11 | “maxCell” | maximum value (excluding null cells) |
12 | “cellSum” | sum of the values (excluding null cells) |
Key | Predefined Name | Description |
---|---|---|
13 | “meanCell” | average (excluding null cells) |
14 | “cellVar” | variance (excluding null cells) |
15 | “cellStd” | standard deviation (excluding null cells) |
16 | “modeCell” | mode (excluding null cells) |
17 | “medianCell” | median (excluding null cells) |
18 | “uniqueCells” | total unique occurrences (excluding null cells) |
ExtractMapAttributes