WEMLevelSetFilter

MLModule

author	MeVis Medical Solutions AG
package	MeVisLab/Standard
dll	MLOpenVDB
definition	MLOpenVDB.def
inherits from	WEMLevelSetFilterBase
keywords	gauss, mean, meancurvature, laplace, median, erode, dilate, close, open

Purpose

The WEMLevelSetFilter allows for applying level set filters to a WEM by transforming the mesh into a level set voxel grid, applying a filter, and remeshing the result.

It utilizes the OpenVDB library.

Windows

Default Panel

Parameter Fields

Field Index

Adaptivity: Double	Grid Cell Size: Double	Mode: Enum
Apply: Trigger	id: Integer	Offset: Double
Auto Apply: Bool	Interpolate per node PVLs: Bool	Overwrite label and description: Bool
Build Edges: Bool	isProcessing: Bool	progress: Float
Clear: Trigger	Iterations: Integer	shouldComputeNormals: Bool
Description: String	Label: String	triangulationMode: Enum
elapsedTime: Float	listenToFinishNotifications: Bool	Update Mode: Enum
Enable PVL support: Bool	listenToRepaintNotifications: Bool	workDirectlyOnInputWEMs: Bool
filterChain: String	listenToSelectionChangedNotifications: Bool

Visible Fields

Auto Apply

name: autoApply, type: Bool, default: TRUE

see WEMGenerator.autoApply

Update Mode

name: updateMode, type: Enum, default: AutoUpdate, deprecated name: autoUpdate

see WEMGenerator.updateMode

Apply

name: apply, type: Trigger

see WEMGenerator.apply

Clear

name: clear, type: Trigger

see WEMGenerator.clear

Overwrite label and description

name: overwriteLabelDescription, type: Bool, default: FALSE

see WEMGenerator.overwriteLabelDescription

Label

name: label, type: String

see WEMGenerator.label

Description

name: description, type: String

see WEMGenerator.description

Grid Cell Size

name: gridCellSize, type: Double, default: 1

see WEMLevelSetFilterBase.gridCellSize

Adaptivity

name: adaptivity, type: Double, default: 0.2

see WEMLevelSetFilterBase.adaptivity

Build Edges

name: buildEdges, type: Bool, default: TRUE

see WEMLevelSetFilterBase.buildEdges

Enable PVL support

name: enablePVLSupport, type: Bool, default: FALSE

see WEMLevelSetFilterBase.enablePVLSupport

Interpolate per node PVLs

name: interpolatePerNodePVLs, type: Bool, default: FALSE

see WEMLevelSetFilterBase.interpolatePerNodePVLs

Mode

name: mode, type: Enum, default: Gauss

Defines the filter that is applied.

Values:

Title	Name	Description
Laplace	Laplace
Mean Curvature	MeanCurvature
Median	Median
Mean	Mean
Gauss	Gauss
Erode	Erode
Dilate	Dilate
Open	Open
Close	Close
Filter Chain	FilterChain	If this is selected, the filter is defined by the filterChain specification.

Iterations

name: iterations, type: Integer, default: 1

Sets the number of iterations for filters that support iterations.

Offset

name: offset, type: Double, default: 1, minimum: 0

Sets the offset for the Close, Open, Dilate, or Erode filters.

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

workDirectlyOnInputWEMs

name: workDirectlyOnInputWEMs, type: Bool, default: FALSE

see WEMProcessor.workDirectlyOnInputWEMs

listenToFinishNotifications

name: listenToFinishNotifications, type: Bool, default: TRUE

see WEMProcessor.listenToFinishNotifications

listenToRepaintNotifications

name: listenToRepaintNotifications, type: Bool, default: TRUE

see WEMProcessor.listenToRepaintNotifications

listenToSelectionChangedNotifications

name: listenToSelectionChangedNotifications, type: Bool, default: TRUE

see WEMProcessor.listenToSelectionChangedNotifications

progress

name: progress, type: Float, persistent: no

see WEMProcessor.progress

triangulationMode

name: triangulationMode, type: Enum, default: Strip

see WEMProcessor.triangulationMode

filterChain

name: filterChain, type: String

Sets the filter chain is used when Mode is set to FilterChain.

It specifies a chain of filters to be applied, one filter per row. The available filters are:

gaussian [iterations]
meancurvature [iterations]
mean [iterations]
median [iterations]
laplacian [iterations]
opening [distance]
closing [distance]
dilate [distance]
erode [distance]

Comment chars are //, so you can comment the filter chains.

The following will perform two Gaussian smoothing iterations and one dilate iteration with offset 3.5:

// first two gaussian iterations
gaussian 2
// then a dilation
dilate 3.5