Coordinates¶

Model definitions¶

Definition of an affine transform 3x4 matrix

Field	Type	Title (Description)
`affine_transform`	`List[List[float]]`	Affine transform matrix

Definition an atlas

Field	Type	Title (Description)
`name`	AtlasName	Atlas name
`version`	`str`	Atlas version
`size`	`List[float]`	Size
`size_unit`	SizeUnit	Size unit
`resolution`	`List[float]`	Resolution
`resolution_unit`	SizeUnit	Resolution unit
`origin`	Origin	Origin (Defines the position of (0,0,0) in the coordinate system)
`axes`	List[Axis]	Axis names (Axis names and directions)
`axis_unit`	SizeUnit	Size unit

A point in an Atlas

Field	Type	Title (Description)
`coordinate_system`	Atlas	Atlas
`translation`	`List[float]`	Translation parameters

Linked direction and axis

Field	Type	Title (Description)
`name`	AxisName	Axis
`direction`	Direction	Direction (Direction of positive values along the axis)

Definition of a coordinate system relative to a brain

Field	Type	Title (Description)
`name`	`str`	Name
`origin`	Origin	Origin (Defines the position of (0,0,0) in the coordinate system)
`axes`	List[Axis]	Axis names (Axis names and directions)
`axis_unit`	SizeUnit	Size unit

Definition of a nonlinear transform

Field	Type	Title (Description)
`path`	`AssetPath`	Path to nonlinear transform file (Relative path from metadata json to file)

Rotation

Rotations are applied as Euler angles in order X/Y/Z

Angles follow right-hand rule, with positive angles rotating counter-clockwise.

Field	Type	Title (Description)
`angles`	`List[float]`	Angles and axes in 3D space (Right-hand rule, positive angles rotate CCW)
`angles_unit`	AngleUnit	Angle unit

Scale

Field	Type	Title (Description)
`scale`	`List[float]`	Scale parameters

Translation

Field	Type	Title (Description)
`translation`	`List[float]`	Translation parameters