This feature type represents the change of a distance between two points. the main difference to a Distance feature type is that a distance change can also have negative values, whereas a distance is by definition always positive.
Characteristic |
Note |
Name |
Distance change |
Path |
\General |
Feature type icon |
|
Feature type class |
Regular |
Spatial data support |
Spatial support on feature |
Allowed spatial systems |
All |
Allowed geometries |
Point, Line |
Allowed contained feature types |
N/A |
Table 1: Characteristics of this feature type
Property structure for type specific feature data
This feature type defines not property structure for type specific feature data.
Property structure for type specific observation data
Property, Property Collection |
Description |
Distance DISTANCE |
Linear distance between two points Property type: Quantity of type Length Default Value: null Default Unit: m Validation rule: Display Options: Decimals: 5 |
Temperature TEMPERATURE |
Represents the thermodynamic temperature Property type: Quantity of type Thermodynamic temperature Default Value: null Default Unit: °C Validation rule: Value ≥ -273.15 Display Options: Decimals: 5 |
Zero reading ZERO READING |
Used for marking the observation as zero reading observation Property type: Boolean Default Value: false Validation rule: none Display Options: none |
Table 2: Properties and collections of the type specific observation data property structure
