As you move the cursor and its rubber line near a significant geometric condition — including parallel, coincidence, tangent and concentric — the system automatically snaps to that condition. Standard graphic symbols and highlighting illustrate the snap condition. To temporarily suspend 2D CoPilot snapping, users can hold down the SHIFT key while dragging. Release the SHIFT key to resume normal snapping.
If 3D projecting is enabled, 3D geometry of the active part or all parts can be projected. The projected geometry can be used for snapping.
Ignore Snaps
When a 2D CoPilot command is active, the visual feedback shows all possible snapping operations (snaps) as you move the cursor over 2D geometry in the viewport. You can skip or ignore specific snaps to reduce the number of snaps.
To skip all active snaps:
• Press S on the keyboard when the snaps are active, or
• Right-click and select Ignore Snaps on the context menu, or
• Press the SPACEBAR (or the assigned key) to open the Option Mini Toolbar (OMT), click (available shortcuts) on the OMT, and select Ignore Snaps.
A specific symbol at the cursor indicates if the skipped snaps exist.
To remove the skipped snaps:
• Press Delete on the keyboard, or
• Right-click and select Clear Visited/Ignored Elems on the context menu, or
• Press the SPACEBAR (or the assigned key) to open the Option Mini Toolbar (OMT), click (available shortcuts) on the OMT, and select Clear Visited/Ignored Elems.
Lock Snap
You can lock an individual snap if it is active in the viewport. Two or more active snaps cannot be locked.
When you move the cursor over 2D geometry in the viewport, a specific lock symbol at the cursor indicates if a snap can be locked.
To lock a snap when the snap is active:
• Press L on the keyboard, or
• Right-click and select Lock Snap on the context menu, or
• Press the SPACEBAR (or the assigned key) to open the Option Mini Toolbar (OMT), click (available shortcuts) on the OMT, and select Lock Snap.
After locking a snap, Creo Elements/Direct Modeling displays an error if you type any of the polar or Cartesian coordinates, which does not produce a valid result (over-constrains geometry).
To remove a locked snap:
• Press L on the keyboard, or
• Right-click and select Lock Snap on the context menu, or
• Press the SPACEBAR (or the assigned key) to open the Option Mini Toolbar (OMT), click (available shortcuts) on the OMT, and select Lock Snap.
Keyboard input
Enter a 2D coordinate at any time to start or end a single line, a rectangle, or to specify the center point of a circle. This coordinate is local to the current workplane and is not snapped.
Entering a single number during straight line creation creates a line of that length in the direction of the current rubber line. If you fix the length of a line and enter a number, it is interpreted as angle value. If you fix the angle of a line and enter a number, it is interpreted as length value. Entering a single number in arc mode fixes the radius of the arc. Entering a number in circle mode fixes the circle radius. If you place the circle center point and enter a number, it is interpreted as a radius and terminates circle creation.
To free the cursor from the rubber line without turning off 2D CoPilot, click on the blue start point and reposition the cursor.
To undo the most-recent geometrical changes, right-click and choose Back on the context menu or press Z.
Alternatively, press the SPACEBAR, click, and select Back.
History
2D CoPilot uses recently visited vertices and curves to assist with snap. Green squares mark recent historic points. Hover over a vertex or the midpoint of a circle to add that point.
Context menu options
All 2D CoPilot options are located on the context menu. Activate 2D CoPilot and right-click in the viewport to select an option.
(available shortcuts) on the OMT, and select Ignore Snaps.
, and select Back.