WEMLevelSetOffset¶

MLModule¶

author	`MeVis Medical Solutions AG`
package	`MeVisLab/Standard`
dll	`MLOpenVDB`
definition	MLOpenVDB.def
inherits from	`WEMLevelSetFilterBase`
keywords	`erode`, `dilate`

Purpose¶

The WEMLevelSetOffset module allows for eroding or dilating an existing WEM using a level set/distance transform and remeshing the mesh at a different distance. Since the mesh is recreated on a voxel grid, topological changes and self-intersections pose no problem.

It utilizes the OpenVDB library.

Windows¶

Default Panel¶

../../../Projects/MLOpenVDB/MLOpenVDB/Modules/mhelp/Images/Screenshots/WEMLevelSetOffset._default.png

Parameter Fields¶

Field Index¶

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

Sets the level set grid size in millimeters.

This parameter is important and must match the resolution of the input WEMs to produce optimal results.

Adaptivity¶

name: adaptivity, type: Double, default: 0.2¶

Sets the adaptivity of the resulting mesh.

An adaptivity value of 0 means that all triangles are created at the highest resolution, while an adaptivity value of 1 reduces the mesh to the maximum supported by OpenVDB.

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

Offset¶

name: offset, type: Double, default: 1¶: Sets the offset in millimeters by which the mesh is eroded or dilated. Positive values dilate, while negative values erode.