Absolute quantity, vector, matrix types with unit (#37 - #42)

37. Absolute float quantity with unit

The internal storage of the value that is transmitted is always in the SI (or standard) unit. The value is preceded by a one-byte unit type (see the table in Coding of units ) and a one-byte display type (see Display types for units). At the end of the object, the String representation of the reference point is added, with a proper prefix for the String and a length.

As an example: suppose the unit indicates that the type is a direction, whereas the display type indicates that the internally stored value 3.14159265 should be displayed as 180 degrees, relative to the EAST reference, this is coded as follows (assuming big-endian encoding). The display type 03 is used to keep the direction compatible with previous versions of djutils-serialization, but 01 could also be used.

|37|04|03|0x40|0x49|0x0F|0xDB| 9 | 0 | 0 | 0 | 4 | E | A | S | T |

In little-endian encoding, it looks as follows:

|37|04|03|0xDB|0x0F|0x49|0x40| 9 | 0 | 0 | 0 | 4 | E | A | S | T |

38. Absolute double quantity with unit

The internal storage of the value that is transmitted is always in the SI (or standard) unit. The value is preceded by a one-byte unit type (see the table in Coding of units ) and a one-byte display type (see Display types for units). At the end of the object, the String representation of the reference point is added, with a proper prefix for the String and a length.

As an example: suppose the unit indicates that the type is a direction, whereas the display type indicates that the internally stored value 3.14159265 should be displayed as 180 degrees, relative to the NORTH reference, this is coded as follows (assuming big-endian encoding). The display type 01 is used to keep the direction compatible with previous versions of djutils-serialization.

|38|04|01|0x40|0x09|0x21|0xFB|0x54|0x44|0x2D|0x18| 9 | 0 | 0 | 0 | 5 | N | O | R | T | H |

In little-endian encoding, it looks as follows:

|38|04|01|0x18|0x2D|0x44|0x54|0xFB|0x21|0x09|0x40| 9 | 0 | 0 | 0 | 5 | N | O | R | T | H |