SoCoordinateSystem

InventorModule

author	MeVis Medical Solutions AG
package	MeVisLab/Standard
dll	SoUtils
definition	utils.def
keywords	Bounding, box, axis, axes, origin, extent, measure, scale

Purpose

The module SoCoordinateSystem displays labeled coordinate axes for an ML image or an Open Inventor scene.

The module creates axes describing the axis-aligned bounding box of either input.

Windows

Default Panel

Input Fields

The module SoCoordinateSystem uses the first valid connection from left to right as input to determine the axes’ sizes and positions.

inImage

name: inImage, type: Image

Input ML image

inNode

name: inNode, type: SoNode

Input Open Inventor scene

Output Fields

self

name: self, type: SoNode

Parameter Fields

Field Index

Arrow Length Factor: Float	lettersFontAlpha: Float	Use Voxel Aligned Bounding Box: Bool
Axis Color: Color	Numbers Font Color: Color	User Scale: Vector3
axisAlpha: Float	numbersFontAlpha: Float	User Stride: Double
End Tick Mode: Enum	Stride Mode: Enum	User Transform Mode: Enum
Font Size: Float	Text Shadow Color: Color	User Translate: Vector3
Letter Offset Factor: Float	Tick Color: Color
Letters Font Color: Color	tickAlpha: Float
Letters Font Size Offset: Float	Use Text Shadow: Bool

Visible Fields

Stride Mode

name: strideMode, type: Enum, default: AUTO

Defines how the distance between ticks is determined.

Values:

Title	Name	Description
​Auto	​AUTO	​Strides are computed automatically by finding the (rounded) magnitude of the maximum axis length and dividing that magnitude value by 10. For example, a maximum axis length of 23 mm would lead to a rounded magnitude of 10, resulting in a stride of 1 mm. A maximum axis length of 56 mm would lead to a rounded magnitude of 100, resulting in a stride of 10 mm.
​User	​USER	​The value of the field User Stride is used. If using this value would lead to either too many ticks (stride too low) or no tick at all (stride to high), the automatic stride is used and a message is printed to the console.

User Stride

name: userStride, type: Double, default: 10

Sets the user distance between ticks.

End Tick Mode

name: endTickMode, type: Enum, default: ROUND_UP

Defines the mode for the end tick.

Values:

Title	Name	Description
​Precise	​PRECISE	​Generates a tick at the precise position of an axis’ absolute length (if it is not in 1% tick distance of another tick).
​Round Up	​ROUND_UP	​Round number of ticks up to accommodate the current axis’ length.
​Round Down	​ROUND_DOWN	​Round number of ticks down to accommodate the current axis’ length.
​Round Nearest	​ROUND_NEAREST	​Round number of ticks to nearest value to accommodate the current axis’ length.

Axis Color

name: axisColor, type: Color, default: 1 1 1

Sets the color of the axis lines and the end arrows.

Tick Color

name: tickColor, type: Color, default: 1 1 1

Sets the color of the ticks.

Numbers Font Color

name: numbersFontColor, type: Color, default: 1 1 1

Sets the color of the numbers.

Letters Font Color

name: lettersFontColor, type: Color, default: 1 1 1

Sets the color of the axis letters (X, Y, Z).

Use Text Shadow

name: useTextShadow, type: Bool, default: TRUE

If checked, the letters and numbers are rendered using a text shadow.

Text Shadow Color

name: textShadowColor, type: Color, default: 0 0 0

Sets the color of the text shadow.

Font Size

name: fontSize, type: Float, default: 10, minimum: 4, maximum: 30

Sets the font size in pixels on screen.

Letters Font Size Offset

name: lettersFontSizeOffset, type: Float, default: 2

Sets a offset in millimeters to enlarge the letters (X, Y, Z).

Arrow Length Factor

name: arrowLengthFactor, type: Float, default: 2

Sets a factor to control the end arrows’ length.

Letter Offset Factor

name: letterOffsetFactor, type: Float, default: 2

Sets a factor to control the position of an axis letter in the direction of the axis.

Use Voxel Aligned Bounding Box

name: useVoxelAlignedBoundingBox, type: Bool, default: FALSE

If checked, the coordinate system is generated as a local coordinate system of the input voxel image.

User Scale

name: userScale, type: Vector3, default: 1 1 1

Sets a component-wise scale to the axes.

User Translate

name: userTranslate, type: Vector3, default: 0 0 0

Sets a translation for the entire coordinate system.

User Transform Mode

name: userTransformMode, type: Enum, default: NO_USER_TRANSFORM

Defines how the user transformations (User Scale, User Translate) are applied.

Values:

Title	Name	Description
​No User Transform	​NO_USER_TRANSFORM	​The user-defined transformation is not applied at all.
​User Transform Instead Of Input	​USER_TRANSFORM_INSTEAD_OF_INPUT	​The user-defined transformation is used instead of any input information. Attached ML images and Open Inventor scenes are disregarded.
​Apply User Transform To Input	​APPLY_USER_TRANSFORM_TO_INPUT	​The user-defined transformation is applied to the input information if available. Otherwise, the user-defined transformation is applied to the default coordinate system.

Hidden Fields

axisAlpha

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

Sets the alpha value of the axis lines and arrows.

tickAlpha

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

Sets the alpha value of the ticks.

numbersFontAlpha

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

Sets the alpha value of the numbers.

lettersFontAlpha

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

Sets the alpha value of the numbers.