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View manipulation using the mouse and keyboard

  • Updated

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 / Key

Action

Result

Wheel

scroll

Zoom in / out.

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

When zooming in the incremental step decreases gradually allowing to focus on a particularly 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 Button or wheel (**)

press and hold while moving the mouse

Real-time pan (RTPAN command)

Middle Button or wheel (**)

double click

Zoom extents

Ctrl + Shift + Left Button

press and hold while moving the mouse

Real-time zoom in / out (RTZOOM command)

Ctrl + Shift + Right 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)

Ctrl + Home

  

Sets the view direction horizontal

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) variable is set ON.

 

Setting the Zoom Factor variable

  1. Type zoomfactor in the command bar, then press Enter.
    You are prompted: New current value for ZOOMFACTOR (3 to 100) <current value>:

  2. Type a value between 3 and 100 in the command bar, then press Enter.

Or

  1. In the Settings dialog, open the Drawing category, then expand the Display/Viewing sub-category.
    In the Viewing group, select the ZOOMFACTOR variable.

  2. Type a value between 3 and 100 in the zoomfactor field.

NOTE

Increase the zoom factor to speed up scroll wheel zooming in large drawings.

 

Setting the Middle Button Pan variable

  1. Type in mbuttonpan the command bar, then press Enter.
    You are prompted: New current value for MBUTTONPAN (Off or On) <current value>:

  2. Type On or Off in the command bar.

Or

  1. In the Settings dialog, open the Program Options category, then expand the User Preferences sub-category and select the MBUTTONPAN variable.

  2. Choose either Support panning or Support action defined in menu file .

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