Slicer3:UIDesign:WorkingProblems:MouseModes:Draft1

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User-suggestions for interaction patterns

• various lassos would be nice to select multiple of the thing current mode indicates
• single click to select one of the thing the current mode indicates
• control-click to select multiple of the thing the current mode indicates
• a shift-click to select ALL of the thing the current mode indicates

Draft 1

The following four mouse modes are proposed:

• Pick (or select),
• Manipulate (or transform selected),
• Place ( or create new object), and
• Transform View.

Transform View is the default mode. All other modes can be invoked in a non-persistent manner from this mode with hot-keys. (which keys to choose?) The proposed design attempts to accommodate user requests listed above, and to provide keyboard+mouse commands for transform view and transform object that are consistent across modes.

Current bindings:

• 3D viewer: left mouse button >> rotate
• 3D viewer: middle mouse button >> pan
• 3D viewer: mouse wheel button >> zoom in/out
• 3D viewer: right mouse button, pull drag >> zoom in
• 3D viewer: right mouse button, push drag >> zoom out

• Slice viewer: left mouse button >> select/move a fiducial point
• Slice viewer: middle mouse button >> pan
• Slice viewer: mouse wheel button >> scroll slices
• Slice viewer: right mouse button, pull drag >> zoom in
• Slice viewer: right mouse button, push drag >> zoom out
• special key-bindings enable placing of fiducials

Proposed bindings:

Pick mode:

• left-mouse-button click (mouse up) for single selection
• ctrl+left-mouse-button click (mouse up) for multiple selection
• shift+left-mouse-button click (mouse up) for selecting all of a datatype, where appropriate

Manipulate mode:

• left-mouse-button press+drag to rotate
• middle-mouse-button press+drag to translate
• right-mouse-button press+drag to scale
• shift+left-mouse-button press+drag to translate
• ctrl+shift+left-mouse-button press+drag to scale

Place mode:

• left-mouse-button-down creates and initially places an object
• drag translates the object in X,Y
• left-mouse-button-up finalizes place operation.

Transform view mode:

• left-mouse-button press+drag to rotate
• middle-mouse-button press+drag to pan
• right-mouse-button press+drag to zoom
• shift+left-mouse-button press+drag to pan
• ctrl+shift+left-mouse-button press+drag to zoom