Two modes have been added for interacting with the SpaceClaim touch interface:

• Timing-based: This mode automatically chooses touch functions based on the amount of time a touch signal is maintained. For example, using two fingers moving together to immediately drag invokes panning, while holding two fingers down for a while, then moving them, invokes what are normally right-mouse-button drag mouse gestures.

• Gizmo-based: This mode is intended to transition existing SpaceClaim users to the touch interface. Existing mouse buttons and popular keyboard buttons are placed in an on-screen gizmo, to clearly map existing functions onto the touch interface. The benefits in terms of usability are not as apparent with the Gizmo style, but users are encouraged to experiment with it. Because the gizmo buttons act exactly like the mouse and keyboard buttons, use of the gizmo will not be explicitly described here.

  An exception is that using the gizmo does not allow for flicks, so to select objects that are under other objects, you must place the gizmo over the object, then drag the Select gizmo button around the gizmo circle, and it acts like rotating a wheel (and thus more directly maps to the mouse wheel function.)

  The mouse experience is characterized by a cursor that is always visible, whose default mode is to innocuously move the cursor around the screen. Nothing happens with a mouse until a button is pressed, or a movement is made with a button pressed. Conversely, with touch, there is a lack of an always-visible cursor (and it would be obscured by a finger anyway.) And so in SpaceClaim, the default mode is innocuous pre-selection, until a selection is made (in various ways described below.) In the timing-based paradigm, once a selection is made, then following touch movements act as mouse-button drag actions. Here the important difference in the Gizmo is the most apparent to the user - as ALL touch movements are interpreted as pre-selection actions - and only touching the screen using the gizmo button labeled Left acts as a drag (same as the left mouse button.)

  Additionally, precise sketching is made possible by the gizmo, since it is difficult to draw lines when the endpoint of the line is under the fingertip (in the timing-based scheme.)

Action	Touch or pen gesture	Mouse
Select geometry	Finger: Tap Pen: Hover to preview the selection, tap to select	Click
Add or remove geometry from selection, remove query-selected edge loops	Ctrl + tap	Ctrl + click
Add geometry to selection	Shift + tap In PullTool used to distort or deform geometry. Use the Pull tool to offset, extrude, revolve, sweep, draft, and blend faces; or to round, chamfer, or extrude edges. When converting a sketch to 3D, pulling a line creates a surface and pulling a surface creates a solid. and Select: Drag to prehighlight the object(s), then lift your finger.	Shift + click
Add geometry to alternate reference selection	Alt + tap If you are already dragging geometry, then a long touch with a second finger changes to an alternate selection tool (shown on-screen with a blue touch circle)	Alt + click
Select a tangent chain of edges, tangentially connected faces, successive edge loops, etc.	Double-tap or touch and double-tap If you are preselecting an edge, invoke the Edge3D object composed of a single outside boundary of a feature. A line sketched in 2D becomes an edge when you pull your sketch into 3D. Radial menu to preview and select one of the loops with the menu. If you are using the Gizmo, use the Select gizmo button to scroll to the other loops.	Double-click(s)
Select a solid	Triple-tap or touch and triple-tap	Triple-click
Select the next face or edge (that is behind a face or edge)	Finger: Drag to preselect, then flick one finger up You can change the direction of the flick in Multitouch options If you are using the Gizmo, use the Select gizmo button to scroll to the other objects.	Scroll the mouse wheel
Box-select	Finger or pen: Touch, pause, and drag to the right or left	Click, hold, and then drag to the right or left
Box-select with four fingers	There are two modes: Quick select: Touch with four fingers and lift to select everything inside the box. Preview select: Touch with four fingers and pause to preview the selection. MoveA tool used to translate or rotate geometry. your fingers to change the selection and you will see a new preview when you pause. The selection is confirmed when you lift your fingers. This allows you to preview and change your selection before it becomes final, rather than getting one chance to select the objects you want. Slight finger movements will not interrupt the previewing.	n/a
Lasso-select faces or edges	Invoke lasso selection with the radial menu	Click Select, then click Using Lasso
Paint-select	Invoke paint selection with the radial menu	Click Select, then click Using Paint
Invoke a context-sensitive menu (a right-mouse-button menu)	Finger or pen: Touch long enough to show the multitouch circle, then lift finger or pen Pen: Tap with pen button pressed If using the gizmo, just click the button labeled Right on the gizmo.	Right-click
Use gesture recognition (see Mouse and touch gestures)	Finger: Touch with two fingers, pause, then drag in the gesture pattern. You will know when the gesture can start when two multitouch circles like this pop up under your fingers: Pen: Touch and drag in the gesture pattern with the pen button pressed If using the gizmo, just drag the button labeled Right on the gizmo.	Gesture with the right mouse button
Reset all pen and touch input	Ctrl + Shift + F2	n/a
Invoke magnifying loupe window	Ctrl + Shift + F3 (This slows down drag by 10% for precise selection with tap, double-tap, or up-select.)	n/a
Invoke keypad for Ctrl, Alt, Shift, Tab, Esc, Enter, and Space	Ctrl + Shift + K (This is useful for tablet PCs on which the keyboard is obscured by the rotated screen.)	n/a
Select more while pulling	While something is selected and being pulled with one drag action, pause the drag action (keep the finger down), and use a finger of the other hand to select more geometry with the standard MT selection methods. Continued dragging of the first finger will now pull the new (augmented) selection. If the second selection is started with a Touch-Hold, until the multitouch icon turns blue, and then continued through to the selection, then that second selection is treated as an Alt-reference - and the PullTool used to distort or deform geometry. Use the Pull tool to offset, extrude, revolve, sweep, draft, and blend faces; or to round, chamfer, or extrude edges. When converting a sketch to 3D, pulling a line creates a surface and pulling a surface creates a solid. tool reacts accordingly.	n/a
Navigate while pulling	While something is selected and being pulled with one drag action, pause the drag action (keep the finger down), and use two or three fingers of the other hand to perform SpinTool used to re-orient your design in any direction, allowing you to view it from any angle./PanMove a drawing around by dragging the drawing area around your screen; move the viewpoint laterally relative to the drawing./RotateDesign: Using the Rotate tool to spin a design 90 degrees in the plane of the screen. You can rotate your design clockwise or counterclockwise. Object: Using the Move handle to spin an object around an axis./Zoom actions. Continued dragging of the first finger will now pull the existing selection - at the same time as the model is being navigated visually.	n/a

 

 

• Select and drag geometry to change it.

• Immediately drag to pre-highlight geometry. You can also touch in white space and drag to pre-highlight. This shows you what will be selected before you select it.

• After you pre-highlight geometry, tap with a second finger or raise the first finger to select the geometry.

• Press the spacebar to enter dimensions for an offset face, just like you can when you use a mouse instead of multitouch.

• Starting on whitespace, drag with one finger, then hover over an edge and double-tap with another finger to query select through the available edge loops. This behavior is the same as a simple double-tap.

• Starting on whitespace, drag with one finger, then hover over a face and triple-tap with another finger to select all the faces of the body. This behavior is the same as a simple triple-tap

• Select faces, bodies, or components to move or rotate.

• Select secondary objects to set the direction.

• Re-anchor the move handle by dragging the yellow ball at its center.

• Tap to activate a rotation or linear axis. This is easiest to do using a pen, or if just fingers, by dragging along then up-to-select.
• Drag to move or rotate geometry.

Multitouch devices are automatically detected on computers running Windows Vista™, and SpaceClaim can be run using these devices on Vista™. You may need to configure one display at a time to avoid common problems with multiple displays and multitouch on Vista™ (a symptom of this is dragging a finger across the multitouch screen's desktop, only to see a box made on the other screen).

You should set up the multitouch screen as the only display device first (make it the primary display), then configure your second display device. After this, the setting is remembered and you can drag the SpaceClaim session from one screen to the other, using multitouch as it is available.