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Editing Objects in the Graphics

Edit mode

While in the edit mode, objects displayed in the graphics can be edited. By editing the object’s geometry and properties are defined.

In order to switch to edit mode, click the respective symbol in the toolbox or press the key combination CTRL+E. Afterwards select the object by clicking onto it using the mouse. The object is then marked and its geometry (polygon points) can be edited.

Line and Area Objects

For all line-like objects (e.g. line sources, barriers) and area-like objects (e.g. area sources, buildings) entered by a series of points two different edit modes are available:

By clicking the edit mode symbol in the toolbox, the polygon point mode is selected automatically. Press the TAB-key to toggle both modes.

Selecting an Object

An object is selected by clicking onto its border, or, in case of roads and railways, by clicking onto its centre line, by using the left or right mouse button. Clicking with the right mouse button opens the context menu offering further commands for this object (see Chapter 12 - Context Menu).

Double-clicking with the left mouse button opens the respective object dialog (see Edit Object Dialog).

Undo

Changes of object geometry via the CadnaA main window can be undone (see Deleting Objects).

Marker Size

On menu Options|Miscellaneous the size of the marker points (displayed when an object is highlighted) can be selected.

Marker Size: size 2 on the left, size 5 on the right