The merge calculation type is used to merge the observations of two or more features of the same feature type into one feature of that same type. If two or more source features contain observations with the same sampling timestamp only the observation of the first source feature will be present in the calculated feature.
Characteristic |
Description |
Supports incremental execution |
Yes |
Output typing |
Implicit by pin, derived from features connected to input pin 1 |
Locking of source features |
Observation modification, observation deletion |
Copy |
Table 1: Calculation brief
No |
Name |
Type, Constraint, Notes |
Multiplicity (Min,Max) |
1 |
Features to merge |
Features or calculations, Same feature types, same spatial reference system. This is the defining input pin. |
2,* |
Table 2: Input pins
Configuration |
Type |
Notes |
Default value |
Include Erroneous |
Boolean |
If set to true, erroneous observations of the source feature or calculation will be processed. |
True |
Table 3: Configuration settings
If the property structure used in the observations of the source features or calculations uses classifications the used classifications must be the same for all source features or calculations. If the calculation is the final calculation of the algorithm the used classifications of the source features or calculations has to be the used classification in the domain of the calculated feature.
If the source features or calculations have observations with the same sampling timestamp the output of this calculation will take the observation of the first feature or calculation and skip the observations of other feature or calculations with the same sampling timestamp. The number of observations in the output is therefore smaller or equal to the sum of all observations in all source features or calculations.
