GetVoxelValue

MLModule

genre	Unary
author	MeVis Medical Solutions AG
package	MeVisLab/Standard
dll	MLBasicModules
definition	mlBasicModules.def
see also	SubImage
keywords	world, coordinate

Purpose

The module GetVoxelValue gets the value of an input image to a corresponding world or voxel coordinate.

The value is written into a field, so it can be used in a network.

Windows

Default Panel

Input Fields

input0

name: input0, type: Image

Parameter Fields

Field Index

Input Coordinate System: Enum	Update Mode: Enum
Interpolation: Enum	Voxel value is valid: Bool
Output String Value: String
Output Value: Double
Position: Vector6
Stored String Value: String
Stored Value: Double
Update: Trigger

Visible Fields

Position

name: position, type: Vector6, default: 0 0 0 0 0 0, deprecated name: worldCoordinateInput

Sets the position which is interpreted according to Input Coordinate System.

Stored Value

name: storedValue, type: Double, persistent: no, deprecated name: voxelDoubleValue

The actual image value at the given position.

Stored String Value

name: storedStringValue, type: String, persistent: no, deprecated name: voxelStringValue

Shows the actual image value at the given position as a string.

Voxel value is valid

name: valid, type: Bool, persistent: no, deprecated name: voxelValueValid

Shows whether the output fields are valid.

Update Mode

name: updateMode, type: Enum, default: AutoClear

Defines the update mode of this module.

Values:

Title	Name	Deprecated Name	Description
Clear	AutoClear	Off	Nothing happens if the input or any field changes.
Update	AutoUpdate		The output fields are computed anew on any field or input image change.

Output Value

name: outputValue, type: Double, persistent: no

Shows the medical image value at the given position. This means that the DICOM Rescale/Slope of the input image are applied to the image value.

Output String Value

name: outputStringValue, type: String, persistent: no

Shows the medical image value at the given position as a string. This means that the DICOM Rescale/Slope of the input image are applied to the image value.

Input Coordinate System

name: coordinateType, type: Enum, default: World

Defines the coordinate system the Position is interpreted in.

Values:

Title	Name
World	World
Voxel	Voxel

Update

name: update, type: Trigger, deprecated name: updateButton

If pressed, the module computes anew.

Interpolation

name: interpolation, type: Enum, default: NearestNeighbor

Selects the interpolation that is used.

Values:

Title	Name	Description
Nearest Neighbor	NearestNeighbor	Selects the nearest voxel value and does not interpolate.
Trilinear	Trilinear	Calculates the result value by using trilinear interpolation on 8 neighboring voxels. On the borders it clamps to the edges. NOTE: Trilinear interpolation is currently only supported on scalar types. On non-scalar types the module always uses nearest neighbor sampling.