The FreeCAD mouse model consists of the commands used to visually navigate the 3D space and interact with the objects displayed. FreeCAD supports multiple mouse model navigation styles. The default navigation style is referred to as "CAD Navigation," and is very simple and practical, but FreeCAD also provides alternative navigation styles, that you can choose according to your preferences.
The object handling is common to all workbenches. The following mouse gestures can be used to control the object position and view according to which Navigation style is selected.
There are two ways to change the navigation style:
- In the Preferences Editor, Display section, 3D View tab;
- By right-clicking in empty space in the 3D view area, then selecting Navigation style in the contextual menu.
This is the default navigation style and allows the user a simple control of the view, and does not require the use of keyboard keys except to make multi-selections.
|Press the left mouse button over an object you want to select.
Holding downallows the selection of multiple objects.
|Hold the middle mouse button, then move the pointer.||Use the mouse wheel to zoom in and out.
Clicking the middle mouse button re-centers the view on the location of the cursor.
|Hold the middle mouse button, then press and hold the left mouse button, then move the pointer.
The cursor location when the middle mouse button is pressed determines the center of rotation. Rotation works like spinning a ball which rotates around its center. If the buttons are released before you stop the mouse motion, the view continues spinning, if this is enabled.
A double click with the middle mouse button sets a new center of rotation.
|Hold the middle mouse button, then press and hold the right mouse button, then move the pointer.
With this method the middle mouse button may be released after the right mouse button is held pressed.
Users who use the mouse with their right hand may find this method easier than the first method.
|Pan mode: hold the introduced in version 0.17key, press the right mouse button once, then move the pointer.||Zoom mode: hold the introduced in version 0.17and keys, press the right mouse button once, then move the pointer.||Rotate mode: hold the introduced in version 0.17key, press the right mouse button once, then move the pointer.|
In OpenInventor (formerly Inventor) Navigation, modeled after Open Inventor (not to be confused with Autodesk Inventor), there is no mouse-only selection. In order to select objects, you must hold down the key.
The Blender Navigation was modeled after Blender. Previously there was no mouse-only panning, and it required use of the key to pan the view. This changed in 2016 with a feature-addition. In order to pan the view, you can now press both left and right mouse buttons and drag in the view.
In Touchpad Navigation, neither panning, nor zooming, nor rotating the view, are mouse-only (or touchpad-only) operations.
This navigation style was tailored for usability with touchscreen and pen, but is very usable with mouse too.
In Maya-Gesture Navigation, all view movements are activated pressingand a mouse button, so that it will be needed to have a 3 button mouse in order to correctly use this navigation mode. Alternately it's possible to use gestures as this mode was been developed over the normal Gesture Navigation mode.
Objects can be selected by a click with the left mouse button either by clicking on the object in the 3D-view or by selecting it in the tree view.
There is also a Preselection mechanism that highlights objects and displays information before selection by just hovering the mouse over the objects. If you don't like this behaviour or you have a slow machine, you can switch preselection off in the preferences.
FreeCAD offers manipulators that are handles that can be used to modify an object's appearance, shape, or other parameters.
FreeCAD also supports some 3D input devices.
Mac OS X Issues
Recently we got reports on the forum from Mac users that those mouse button and key combination do not work as expected. Unfortunately, none of the developers owns a Mac, neither do the other regular contributors. We need your help to determine which mouse buttons and key combination work so we can update this wiki.