Mouse Operations

By default, the mouse snaps to the nearest object, which is previewed with different color. When clicked with the primary mouse button, the object is selected and it becomes a new active object.

Some modes (such as adding a new line) accept both existing object coordinates and mouse coordinates anywhere on the screen. Same snapping principle applies here: if the mouse is near enough for snapping preview, the object coordinates are used. Otherwise the mouse location on the screen is used.

Object snapping can be turned on or off from the secondary pop-up menu.

Note that the mouse location is valid only in the 2D mode. Existing object coordinates can be used also in 3D mode.

Continuous movement

Some operations may use continuous mouse tracking with the Shift-key. These allow painting-style operations over the larger area.

Double-click

Double-clicking objects (points or lines) opens their editing tools. Double-clicking with the Shift-key duplicates the object before opening the editing tool.

Rubber band

Some editing modes create a rubber band line between the previous point and the mouse location. It just visualizes the line between two locations and has no other effect.

Secondary button

The secondary mouse button opens either the editing pop-up menu or, with the Shift-key, the settings pop-up memu.