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GazeScreenCoordinateConversion

Perform coordinate conversions on gaze data.

Conversions are related to the screen resolution, viewer distance, etc. Normalized coordinates are between 0 and 1 (not between -0.5 and +0.5). However, meters, centimeters, degrees and radians are measured relative to the screen center and can therefore be negative. This expects the screen metadata to be stored in the chunk properties. Use the SetGazeMetadata node if you need to set that data (i.e., if it is not present in the original gaze data). Version 1.0.0

Ports/Properties

data

Data to process.

verbose name
Data
default value
None
port type
DataPort
value type
Packet (can be None)
data direction
INOUT

convert_from

Current units.

verbose name
Convert From
default value
pixels
port type
EnumPort
value type
str (can be None)

convert_to

Units to convert to.

verbose name
Convert To
default value
degrees
port type
EnumPort
value type
str (can be None)

correct_flat

Correct for screen being flat. Only relevant in conversions between angular and linear measures.

verbose name
Correct Flat
default value
False
port type
BoolPort
value type
bool (can be None)

convert_instance_fields

List of instance axis data field names (table columns) to convert as well.

verbose name
Convert Instance Fields
default value
None
port type
ListPort
value type
list (can be None)

set_breakpoint

Set a breakpoint on this node. If this is enabled, your debugger (if one is attached) will trigger a breakpoint.

verbose name
Set Breakpoint (Debug Only)
default value
False
port type
BoolPort
value type
bool (can be None)

metadata

User-definable meta-data associated with the node. Usually reserved for technical purposes.

verbose name
Metadata
default value
{}
port type
DictPort
value type
dict (can be None)