Model interface

The model interface consists of four main areas: the graphics view, the model objects view, the library list, and the the property table.

Train Noise Expert model interface window.

Graphics view

This is where a graphical representation of the train model is shown, for the currently selected Situation. Any changes that are made to the model geometry are updated immediately in the 2D graphics view (the 3D view must be refreshed for some aspects to be updated). Model items can be selected by clicking their graphical representations, and vice versa, and selected items are highlighted in blue. Active train noise sources are shown in red and inactive sources are shown in grey.

In 2D view, a zoom slider is used to control the view magnification, and the view can be moved either by using the scrollbars, or by click-dragging with the mouse cursor anywhere in the graphics window.

In 3D view there are number of sliders to control the position of the camera, as well as the functionality to load/save preset views. The view tilt/rotation can be adjusted by click-dragging with the left mouse button; the position of the camera may be adjusted by click-dragging with the right mouse button. Options are also present for turning on/off labels for sources/receivers.

Model objects view

This is where the structure of your project is shown as a hierarchy.

At the top level of the hierarchy is the situation. Each situation contains objects that represent the train, track, environment and receivers, and these are all managed from this view.
Selecting an item in the model object view will cause its properties to appear in the property table, and if appropriate highlight it in the graphics view.

New model objects are added, deleted and moved by right-clicking in the model objects view; for example, right-clicking on the ‘train’ object will allow new vehicles to be created; right-clicking on a ‘vehicle’ object allows vehicles to be moved or deleted.

N.B. Model objects that have been disabled for the calculations are shown “greyed-out” in the view.

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Library list

Selecting the “Library” tab in the model view will display a list of all the library items contained within the project, together with a count of the total number of times that they are used.
Selecting a library item will cause its properties to appear in the property table.

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Library items must be created here before they can be assigned to model objects.
Items may be deleted from the library list via a right-click menu, however, this is only allowed for items currently not in use.

Property table

The property table is used to view and edit the properties for the model objects and/or library items.

Three columns are provided in the property table for the property name, value and units (where applicable). For further details on the kinds of values that can be entered here, see Data types.

Additional information about each parameter in the property table is provided by hovering the mouse cursor over the proprty name. In addition, right-clicking the property name and selecting “more info…” will navigate the user to the appropriate section of the documentation.

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Editing properties will affect every model object in the project that implements that particular library item. If a model object is required to be unique, a separate library item must be created and assigned to that model object.

Run log

At the bottom of the model view, a run log is shown. This provides some brief feedback on what the software has been doing, and whether any problems have been encountered.

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