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Zoom changes the magnification of a model. The following are mouse click and key combinations to control the behavior of the Zoom command:
- Click Click Zoom on a wheel to zoom the current view in by a factor of 25 percent. If you are using the Full Navigation wheel, requires that in the Properties dialog box for the SteeringWheels, incremental zoom is enabled.
- SHIFT+click If you hold down SHIFTkey before you click Zoom on a wheel, the current view zooms out by a factor of 25 percent. Zooming is performed from the current location of the cursor, and not the current pivot point. If you are using the Full Navigation wheel, requires that in the Properties dialog box for the SteeringWheels, incremental zoom is enabled.
- CTRL+click If you hold down CTRLbefore you click Zoom on a wheel, the current view zooms in by a factor of 25 percent. Zooming is performed from the current pivot point, and not the location of the cursor.
- Click and drag To adjust the magnification of the model, click Zoom, hold down the button on your pointing device, and drag up and down.
- CTRL+click and drag When using the Full Navigation wheels or the mini View Object wheel, to control the target point used by Zoom, hold down CTRL. The Zoom command uses the location of the previous pivot point defined by the Zoom, Orbit, or Center command.
- SHIFT+click and drag When using the Full Navigation wheels or the mini View Object wheel, to zoom in to an area of the model, drag a rectangular window around the area. Hold down SHIFT, and then click and drag a window around the area. Note Hold downCTRLandSHIFTto zoom in to an area of a model using a center-based window instead of one defined by opposite corners.
- Mouse wheel When a wheel is displayed, to zoom the view of the model in or out, scroll the mouse wheel up or down.
Note: When you use Zoom from the Full Navigation wheel or the View Object wheel, the point in the view where you click to zoom is the center point for all Orbit operations. It remains the center point until you either use Zoom again, or use the Center command. If you pressCTRLbefore you click the Zoom wedge, the Center point does not change.
When changing the magnification of a model with Zoom, you cannot zoom in any closer than the focus point, or out any further past the extents of the model. The center point set by the Center command controls the direction you can zoom in and out.
Note: Unlike the Zoom command on the big View Object wheel, Zoom on the mini View Object and Full Navigation wheels are not constrained.