View manipulation using the mouse and keyboard

In BricsCAD you can navigate through a 3D model using the mouse and keyboard shortcuts.

In perspective mode you can walk inside the 3D model. In isometric mode you can only zoom in very close, but not go inside.

Mouse or Keyboard Action Result
Mouse wheel scroll Zoom in / out.

The incremental change in zoom with each mouse-wheel action is controlled through the Zoom Factor variable (ZOOMFACTOR system variable). Default = 60. Values between 3 and 100 are accepted.

When zooming in, the incremental step decreases gradually, allowing you to focus on a particular detail easily.

In a 3D model, the entity under the cursor has the zoom focus.

The ZOOMWHEEL system variable controls the zoom direction:

0 or OFF: scrolling forwards zooms in, backwards zooms out.

1 or ON: scrolling forwards zooms out, backwards zooms in.

Middle mouse button or wheel* press and hold while moving the mouse Real-time pan (RTPAN command)
Middle mouse button or wheel* double-click Zoom extents
Ctrl + Shift + Left mouse button press and hold while moving the mouse Real-time zoom in / out (RTZOOM command)
Ctrl + Shift + Right mouse button press and hold while moving the mouse Constrained real-time pan (RTPAN command). Release the Shift key for free panning.
Ctrl + Shift + Middle Button or wheel press and hold while moving the mouse Real-time sphere (RTROTF command)
Shift + Middle Button or wheel press and hold while moving the mouse Real-time constrained sphere (RTROT command)
Ctrl + Right Button press and hold while moving the mouse Real-time rotate about the screen Z-axis (RTROTZ command)
Walk through navigation
Alt + Left Button press and hold while moving the mouse Walk left / right and forward / backward (RTWALK command)
Alt + Middle Button press and hold while moving the mouse Move up / down and left / right (RTUPDOWN command)
Ctrl + Middle Button press and hold while moving the mouse Look around (RTLOOK command)
Ctrl + Arrow Keys press the arrow keys while holding the Ctrl key Walk left / right and forward / backward (RTWALK command)
Ctrl + Shift + Arrow Keys press the arrow keys while holding the Alt + Ctrl keys Look up / down and left / right (RTUPDOWN command)
Home Sets the view direction horizontal (VIEWHORIZONTAL command)
Alt + Home Moves target point to center of scene
Alt + plus/minus Increase / decrease movement speed
Ctrl + plus/minus Increase / decrease rotation speed

* On condition the Middle Button Pan (MBUTTONPAN) system variable is set ON.