WEMImageSliceIntensityProfile¶

MLModule¶

genre	`WEMGenerate`
author	`MeVis Medical Solutions AG`
package	`MeVisLab/Standard`
dll	`MLWEMModules`
definition	MLWEMModules.def
inherits from	`WEMGenerator`
keywords	`heightfield`, `elevation`, `displace`, `bump`

Purpose¶

The module WEMImageSliceIntensityProfile generates an open WEM as a height field for an image slice.

The image slices are always taken from the scan direction. Use image manipulation modules such as OrthoReformat3 or Resample3D to change view direction or resolution.

Details¶

The module generates a WEM with a node for each image voxel of a slice. The slice is always taken from the original scan direction.

The size of the mesh is normalized in that it preserves the image’s aspect ratio while the larger voxel extent is mapped to 1.

The nodes are being displaced in negative z-direction (towards the viewer) in a normalized manner; that means that with a Scale Factor 1, the maximum image value at a voxel causes a displacement of 1 (unit relative to normalized voxel extent above).

The image values at nodes are stored in the default PVL ‘LUT’, so the image values can be used to color the mesh with a LUT that is used for a 2D view (see example network).

The example network features a local macro that transforms the normalized mesh to the slice’s world space; if used, the rendering of the mesh is exactly aligned with a rendering of the slice by using a SoView2D with a SoView2DHint in 3D.

Windows¶

Default Panel¶

../../../Modules/ML/MLWEMModules/mhelp/Images/Screenshots/WEMImageSliceIntensityProfile._default.png

Input Fields¶

input0¶

name: input0, type: Image¶

Output Fields¶

outWEM¶

name: outWEM, type: WEM(MLBase)¶: For accessing this object via scripting see the Scripting Reference: MLWEMWrapper.

Parameter Fields¶

Field Index¶

`Apply`: `Trigger`	`maxNumSlices`: `Integer`
`Auto Apply`: `Bool`	`Overwrite label and description`: `Bool`
`Clear`: `Trigger`	`Scale Factor`: `Double`
`Description`: `String`	`Should Build Edges`: `Bool`
`elapsedTime`: `Float`	`shouldComputeNormals`: `Bool`
`id`: `Integer`	`Slice`: `Integer`
`isProcessing`: `Bool`	`Update Mode`: `Enum`
`Label`: `String`

Visible Fields¶

Auto Apply¶

name: autoApply, type: Bool, default: TRUE¶: If checked, the module computes anew on any parameter change.

Update Mode¶

name: updateMode, type: Enum, default: AutoUpdate, deprecated name: autoUpdate¶: Defines how this module should react on any input field change.

Apply¶

name: apply, type: Trigger¶: If pressed, the module computes anew.

Clear¶

name: clear, type: Trigger¶: If pressed, the output WEM is cleared (made empty).

Overwrite label and description¶

name: overwriteLabelDescription, type: Bool, default: FALSE¶: If checked, the label and description string of the output WEM are set to Label and Description.

Label¶

name: label, type: String¶: Sets a label string in the output WEM.

Description¶

name: description, type: String¶: Sets a description string in the output WEM.

Slice¶

name: slice, type: Integer, default: 0, minimum: 0, maximum: :field:`maxNumSlices`¶: Sets the slice to generate a height field for. Can only be in [0.. maxZSlice].

Scale Factor¶

name: scaleFactor, type: Double, default: 1¶: Sets a scale factor that is multiplied to the normalized height displacement of mesh nodes.

Should Build Edges¶

name: shouldBuildEdges, type: Bool, default: FALSE¶: If checked, the module generates edges for the output WEM. This is quite time-consuming, so be sure that you really need the edges.

Hidden Fields¶

isProcessing¶

name: isProcessing, type: Bool, persistent: no¶

see WEMGenerator.isProcessing

elapsedTime¶

name: elapsedTime, type: Float, persistent: no¶

see WEMGenerator.elapsedTime

id¶

name: id, type: Integer, default: 0¶

see WEMGenerator.id

shouldComputeNormals¶

name: shouldComputeNormals, type: Bool, default: TRUE¶

see WEMGenerator.shouldComputeNormals

maxNumSlices¶

name: maxNumSlices, type: Integer, default: 0¶