MarkerTrackingSystem Class Reference

Manages marker tracking in terms of receiving, filtering, storing, accessing, and visualizing the marker data. More...

Public Member Functions
void	OnToggleUI ()
	Toggles the visualization of markers on/off.

Public Attributes
MarkerData[]	markerDataLUT
	The most recently recieved marker tracking data ordered by FAST.MarkerData.id.

Properties
float	Height [get]
	Returns the height of the FAST.MarkerTrackingSystem.trackingArea.
float	Width [get]
	Returns the width of the FAST.MarkerTrackingSystem.trackingArea.

Private Attributes
bool	isDrawMarkers
	Inspector Set to true if the tracked markers should be visualized.
GameObject	markerParent
	Inspector The parent GameObject where Marker Prefabs will be added at runtime to visualize the markers.
GameObject	markerPrefab
	Inspector The prefab to use as a visualization of a marker at runtime.
GameObject[]	markers
	Runtime The array of marker visualization GameObjects instantiated from FAST.MarkerTrackingSystem.markerPrefab at runtime.
int	maxNumMarkers = 24
	Settings The maximum number of markers that this marker tracking system can track.
float	positionFilterAmount = 0.5f
	Inspector The amount of filtering to apply to the marker position and size.
float	rotationFilterAmount = 0.25f
	Inspector The amount of filtering to apply to the marker orientation.
RectTransform	trackingArea
	Inspector The RectTransform that represents the marker tracking area.
double	trackingTimeout = 0.25
	Inspector The amount of time in seconds before the marker tracking changes from FAST.MarkerData.TrackingState.Inferred to FAST.MarkerData.TrackingState.NotTracked when a marker isn't detected.
UdpConnection	udpConnection
	Settings The FAST.UdpConnection to receive marker tracking data from.

Detailed Description

Manages marker tracking in terms of receiving, filtering, storing, accessing, and visualizing the marker data.

Use the Marker Tracking System Prefab to instantiate a MarkerTrackingSystem with default attributes and assignments.

See also

UnityEngine.GameObject

UnityEngine.RectTransform

Member Function Documentation

OnToggleUI()

void OnToggleUI

(

)

Toggles the visualization of markers on/off.

Member Data Documentation

isDrawMarkers

bool isDrawMarkers

private

Inspector
Set to true if the tracked markers should be visualized.

markerDataLUT

MarkerData [] markerDataLUT

The most recently recieved marker tracking data ordered by FAST.MarkerData.id.

markerParent

GameObject markerParent

private

Inspector
The parent GameObject where Marker Prefabs will be added at runtime to visualize the markers.

This will already be assigned if you use the Marker Tracking System Prefab.

markerPrefab

GameObject markerPrefab

private

Inspector
The prefab to use as a visualization of a marker at runtime.

This will already be assigned as the Marker Prefab if you use the Marker Tracking System Prefab.

markers

GameObject [] markers

private

Runtime
The array of marker visualization GameObjects instantiated from FAST.MarkerTrackingSystem.markerPrefab at runtime.

maxNumMarkers

int maxNumMarkers = 24

private

Settings
The maximum number of markers that this marker tracking system can track.

This value can be found in the Computer Vision app, but the default is 24.

positionFilterAmount

float positionFilterAmount = 0.5f

private

Inspector
The amount of filtering to apply to the marker position and size.

0 is the new raw position/size and 1 is the previous filtered position/size. Any value in between is linearly interpolated.

rotationFilterAmount

float rotationFilterAmount = 0.25f

private

Inspector
The amount of filtering to apply to the marker orientation.

0 is the new raw orientation and 1 is the previous filtered orientation. Any value in between is linearly interpolated.

trackingArea

RectTransform trackingArea

private

Inspector
The RectTransform that represents the marker tracking area.

This will already be assigned if you use the Marker Tracking System Prefab.

Specifying the tracking area as a RectTransform allows a FAST.AlignmentRectTransform to be used where the size is specified in the activity settings XML file.

trackingTimeout

double trackingTimeout = 0.25

private

Inspector
The amount of time in seconds before the marker tracking changes from FAST.MarkerData.TrackingState.Inferred to FAST.MarkerData.TrackingState.NotTracked when a marker isn't detected.

udpConnection

UdpConnection udpConnection

private

Settings
The FAST.UdpConnection to receive marker tracking data from.

Property Documentation

Height

float Height

get

Returns the height of the FAST.MarkerTrackingSystem.trackingArea.

Width

float Width

get

Returns the width of the FAST.MarkerTrackingSystem.trackingArea.

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The documentation for this class was generated from the following file:

• C:/Users/cgbrown/Development/git/FAST/FAST-SDK/Runtime/Marker Tracking/MarkerTrackingSystem.cs