TraCI/Change PoI State

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Command 0xc7: Change PoI State

ubyte string ubyte <value_type>
Variable PoI ID Type of the value New Value

Changes the state of a point-of-interest. Because it is possible to change different values of a PoI, the number of parameter to supply and their types differ between commands. The following values can be changed, the parameter which must be given are also shown in the table.

Overview Changeable PoI Variables
Variable ValueType Description Python Method
type (0x4f) string Sets the PoI's type to the given value setType
color (0x45) color (ubyte,ubyte,ubyte,ubyte) Sets the PoI's color to the given value (r,g,b,a) - please note that a(lpha) = 0 means fully transparent setColor
position (0x42) Position2D (double, double) Sets the PoI's position to the given value setPosition
ADD (0x80) PoI-definition, see below Adds the defined PoI add
REMOVE (0x81) int (layer), see below Removes the defined PoI remove


The message contents are as following:

type (0x4f)

ubyte string
value type string New Type Name

color (0x45)

ubyte ubyte ubyte ubyte ubyte
value type color red green blue alpha

position (0x42)

ubyte double double
value type position2D x-coordinate y-ccordinate


ADD (0x80)

ubyte int ubyte string ubyte color ubyte int ubyte position
value type compound item number = 4 value type string type name value type color color value type int layer value type position2D position

If the PoI could not been added because another one with the same ID already exists within the layer, an error message is generated.


REMOVE (0x81)

ubyte int
value type int layer

If the named PoI can not be found in the given layer, all PoIs with the given ID are removed (from all layers). If no PoI with the given ID could be found, an error message is generated.