Choose Insert mode to insert new segments with the mouse.

When Insert mode is active:

• the mouse pointer appears as a pencil,
• an option bullet appears in front of this menu command, and
• the Insert mode button in the toolbar appears down.

Tips:

• In Insert mode, you can use AutoSnap. When Autosnap is active, the system automatically snaps to nodes and splits when necessary, i.e. there is less need to use the Shift or Ctrl keys as described below. You can turn Autosnap on and specify a snap tolerance in the Segment editor : Customize dialog box.
• During the insertion of segments by mouse (but also when using the digitizer), automatic tunneling is applied to reduce the amount of coordinates that need to be stored in the segment map. The so-called tunnel tolerance can be specified in the Customize dialog box of the segment editor (File menu).

After you finished inserting a new segment, an Insert/Edit dialog box will usually appear asking for the class name, ID, or value of the new segment.

To insert a new segment:

• position the mouse pointer on the location where you want to start a new segment;
• press the left mouse button to start the segment (begin node);
• hold the left mouse button down and move the mouse to automatically insert segment coordinates (stream mode), or
• click at the positions at which you want to insert intermediate points;
• double-click or press the space bar to end the segment with a loose end (end node).

To delete intermediate points while inserting a segment:

• press the right mouse button once to delete the last point, or
• keep the right mouse button down and move the mouse to delete multiple points, or
• press Esc to delete all points, i.e. the complete segment.

To connect a new segment to an existing node (snap):

• position the mouse pointer on the node to which you want to snap;
• press and hold down the Shift key and click the node;
• when AutoSnap is active, you can simply click the node.

To start or end a new segment on an existing segment (snap/split):

• position the mouse pointer somewhere on a segment;
• press and hold down the Ctrl key and click the segment;
• a message box asks for confirmation to split the segment;
• when you answer Yes, the new segment is snapped to the new node.

Tips:

• You can also add/insert segments with the digitizer.
• When inserting a segment and pressing the Del key on the keyboard: the last intermediate point of the unfinished segment will be cleared.

This is the same as pressing the right mouse button during the insertion of a new segment.

• When inserting a segment and pressing the Esc key on the keyboard: the whole unfinished segment will be cleared.
• To edit the class names, values etc. of existing segments, see Segment editor : Edit.

See also:

Segment editor : functionality

Segment editor : toolbar

Segment editor : menu commands

Segment editor : Digitizer

Segment editor : Insert code

Segment editor : Insert/Edit new segment

Segment editor : Edit