InventorSceneChangeObserver¶

MacroModule¶

author	`MeVis Medical Solutions AG`
package	`MeVisLab/Standard`
definition	InventorSceneChangeObserver.def
keywords	`field`, `node`, `SoField`, `SoNode`, `count`, `counter`, `measure`, `profile`, `performance`, `optimize`

Purpose¶

The InventorSceneChangeObserver module allows to observe and log field and scene changes in the connected scene graph. It can be used to detect undesired scene changes which lead to repaints of viewers, e.g. when the mouse is moved over a scene. Furthermore it can be used to trigger actions on changes of the scene graph topology.

Usage¶

Connect the scene graph to inNode. Configure to your needs.

Input Fields¶

inNode¶

name: inNode, type: SoNode¶: This input scene that is watched.

Parameter Fields¶

Field Index¶

`Auto Update`: `Bool`	`Log To Text View`: `Bool`
`Changed Fields/Nodes`: `String`	`Node Changed`: `Trigger`
`Clear`: `Trigger`	`Update`: `Trigger`
`Count`: `Integer`
`Count Changes`: `Bool`
`Field Changed`: `Trigger`
`fieldValueMaxLength`: `Integer`
`Log To Console`: `Bool`

Visible Fields¶

Log To Console¶

name: logToConsole, type: Bool, default: FALSE¶: Enables logging to the MeVisLab console.

Log To Text View¶

name: logToTextView, type: Bool, default: TRUE¶: If True, scene changes are logged to the text view in the module GUI.

Auto Update¶

name: autoUpdate, type: Bool, default: TRUE¶: Auto updates the log window.

Update¶

name: update, type: Trigger¶: Updates the log window manually.

Clear¶

name: clear, type: Trigger¶: Clears the log window and count.

Changed Fields/Nodes¶

name: logText, type: String, persistent: no¶: Shows the changed fields/nodes.

Count Changes¶

name: countChanges, type: Bool, default: TRUE¶: If true, observed changes are counted and output in the field count.

Count¶

name: count, type: Integer, persistent: no¶: Number of observed changes.

Field Changed¶

name: fieldChanged, type: Trigger¶: Output trigger indicating that a field in the input scene graph has changed.

Node Changed¶

name: nodeChanged, type: Trigger¶: Output trigger indicating that a node, but no field in the input scene graph has changed.

Hidden Fields¶

fieldValueMaxLength¶

name: fieldValueMaxLength, type: Integer, default: 80¶