GVRContourOverlay

MacroModule

genre	VolRend
author	Christian Rieder
package	FMEstable/ReleaseMeVis
definition	GVRContourOverlay.def
see also	SoGVRVolumeRenderer, SoGVRSecondaryVolume, GVRContourOverlayExtension
keywords	GVR, scondary, volume, mask, contour

Purpose

The GVRContourOverlay alllows to draw a contour in a GVR volume rendering utilizing the SoGVRSecondaryVolume.

Usage

Connect the module before the SoGVRVolumeRenderer module in the scene graph and set a unique name, if you want to use more than one GVRContourOverlay in the scene.

Details

The contour is calculated in a GLSL shader using a 4-neighbourhood in screen coordinates. Thus, zooming in does not affect the contour thickness.

Windows

Default Panel

Input Fields

inImage

name: inImage, type: Image

Input ML image.

inVolume

name: inVolume, type: MLBase

Input GVR volume image.

inLUT

name: inLUT, type: MLBase

Input LUT.

Output Fields

outGVRExtension

name: outGVRExtension, type: SoNode, deprecated name: outGVRSecondaryVolume

A node that should be put in front of the SoGVRVolumeRenderer.

Parameter Fields

Field Index

Border Grey Value: Float	Enabled (enabledTransformation): Bool	Use LUT Color: Bool
Color: Color	Interior Alpha: Float	World Center: Vector3
Contour Alpha: Float	Invert Contour: Integer	World Rotation: Rotation
Contour Iso Value: Float	Modify World Coordinates: Bool	World Scale: Vector3
Contour Thickness: Float	Name: String
Custom World To Voxel Matrix: Matrix	Replace World To Voxel Matrix: Bool
Enable merge mode: Bool	Transform Mode: Enum
Enabled (enabled): Bool	Use Border Grey Value: Bool

Visible Fields

Enabled (enabled)

name: enabled, type: Bool, default: TRUE

Defines if the mask (secondary volume) is enabled.

Name

name: volumeName, type: String, default: MyContour

Defines the unique name that will be used to address this volume.

Use LUT Color

name: useLUT, type: Bool, default: FALSE

Use input LUT for coloring.

Color

name: color, type: Color, default: 0 0.662745118141174 1

Defines the color of the countour.

Interior Alpha

name: interiorAlpha, type: Float, default: 0.30000001, minimum: 0, maximum: 1

Defines the interior alpha value.

Contour Alpha

name: contourAlpha, type: Float, default: 1, minimum: 0, maximum: 1

Defines the contour alpha value.

Contour Thickness

name: contourThickness, type: Float, default: 2, minimum: 0, maximum: 8

Defines the contour thickness.

Contour Iso Value

name: contourIsoValue, type: Float, default: 0.5, minimum: 0, maximum: 1

Defines the relative iso value the contour to be drawn.

Enabled (enabledTransformation)

name: enabledTransformation, type: Bool, default: FALSE

Enables transformation.

Transform Mode

name: transformMode, type: Enum, default: UseWorldCoordinates

Select world coordinates or scale to image.

Modify World Coordinates

name: modifyWorldCoordinates, type: Bool, default: FALSE

Enable the additional transforms.

Replace World To Voxel Matrix

name: replaceWorldToVoxelMatrix, type: Bool, default: FALSE

Enable the use of the transformation matrix.

World Center

name: worldCenter, type: Vector3, default: 32 32 32

Defines the new world center of the mask volume, takes the center of the mask volume and moves it to the new center.

World Rotation

name: worldRotation, type: Rotation, default: 0 0 1 3.14159274101257

Defines the additional rotation (around the center of the volume).

World Scale

name: worldScale, type: Vector3, default: 1 1 1

Defines the exponent that is applied.

Custom World To Voxel Matrix

name: customWorldToVoxelMatrix, type: Matrix, default: 1 0 0 0, 0 1 0 0, 0 0 1 0, 0 0 0 1

Defines the world transformation with a matrix.

Enable merge mode

name: enableReversedOrder, type: Bool, default: FALSE

Use Border Grey Value

name: useBorderGreyValue, type: Bool, default: FALSE

Enables texture border grey value.

Border Grey Value

name: borderGreyValue, type: Float, default: 0

Border grey value.

Invert Contour

name: isInverted, type: Integer, default: 0

Inverts the contour.