XMarkerListContainer

MLModule

genre	Marker
author	MeVis Medical Solutions AG
package	MeVisLab/Standard
dll	MLBase
definition	MLBase.def
see also	SoView2DMarkerEditor
keywords	Vector, ListBase

Purpose

The module XMarkerListContainer stores a list of ml.XMarker objects as a ml.XMarkerList object and makes it available at its outXMarkerList field. The contents of this marker list can be displayed, edited, and saved in a persistent state.

Usage

The XMarkerListContainer controls either an internal ml.XMarkerList object or an external object connected at the inXMarkerList field. It allows for adding, deleting and modifying entries in the XMarkerList.

If an external XMarkerList is connected, the XMarkerListContainer acts as an inspector for the external object, i.e., it displays the contents of the external XMarkerList and the internal list object is hidden. If the inXMarkerList field is connected to an object which is no XMarkerList, all display and edit functions are disabled.

Details

A ml.XMarkerList object contains a number of XMarker list elements. An XMarker object consists of a 6D position, a 3D vector, a type, a name, and an Item ID property. The vector is interpreted relative to the marker position, hence if the vector equals (0, 0, 0), the marker is a point marker. The type is an arbitrary integer value, which can be used to distinguish between markers with different meaning (e.g., include and exclude marker in a segmentation application). The ID of an XMarker list element is unique within a list and is left unchanged even if list elements are inserted or deleted. The ID can hence be used as a reference to a list element.

In addition to the XMarker list elements, an ml.XMarkerList contains a description of the last action performed on the list (see the description of the field Action below). This can be used by modules attached to a XMarkerList object to synchronize themselves with operations performed on the list by some other module.

Interaction

The module’s control panel offers the possibility to add empty or filled XMarker items. To add filled items, Add/Insert from Template has to be checked. In this case, the values of the Template Item are used.

Furthermore, the modification of existing items is possible. This can be done by selecting an item via the field Item Index and editing the properties of the Current Item. The new property values are passed to the list item when the focus leaves the edit control.

Windows

Default Panel

Input Fields

inXMarkerList

name: inXMarkerList, type: ListBase(MLBase), deprecated name: inputXMarkerList

An external XMarkerList object can be connected to this field.

Output Fields

outXMarkerList

name: outXMarkerList, type: XMarkerList(MLBase), deprecated name: outputXMarkerList

The XMarkerList controlled by this module is presented at this field.

For accessing this object via scripting see the Scripting Reference: MLXMarkerListWrapper.

Parameter Fields

The XMarkerItems section contains additional fields to display and edit the Position, Vector, Type, and Name properties of the current marker. The Name property can be used as a label for individual markers.