Zoom Tool (Concept)

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Zoom Tool

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Concept

Procedure

Quick Reference

The Zoom tool adjusts the magnification of the current view of a model.

You use the Zoom tool to change the zoom magnification of a model. The following mouse click and key combinations are available to control how the Zoom tool behaves:

Click. If you click the Zoom tool on a wheel, the current view is zoomed in by a factor of 25 percent. If you are using the Full Navigation wheel, incremental zoom must be enabled in the properties dialog box for the SteeringWheels.
SHIFT+click. If you hold down the SHIFT key before you click the Zoom tool on a wheel, the current view is zoomed out by a factor of 25 percent. Zooming is performed from the current location of the cursor, and not the current pivot point.
NoteWhen you start the Zoom tool from the Full Navigation wheel, incremental zooming must be enabled in the properties dialog box for the SteeringWheels in order to use CTRL+click and SHIFT+click.
CTRL+click. If you hold down the CTRL key before you click the Zoom tool on a wheel, the current view is zoomed 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. If you click the Zoom tool and hold down the button on your pointing device, you can adjust the magnification of the model by dragging up and down.
CTRL+click and drag. When using the Full Navigation wheels or the mini View Object wheel, you can control the target point used by the Zoom tool. By holding down the CTRL key, the Zoom tool uses the location of the previous pivot point defined by the Zoom, Orbit, or Center tool.

NoteWhen you start the Zoom tool from the Full Navigation wheel, incremental zooming must be enabled in the properties dialog box for the SteeringWheels in order to use CTRL+click and SHIFT+click.

NoteWhen you use the Zoom tool from the Full Navigation wheel or the View Object wheel, the point in the view where you click to zoom becomes the Center point for future Orbit operations until you either use the Zoom tool again or use the Center tool. If you press CTRL before you click the Zoom wedge, the Center point does not change.

Zoom Constraints

When changing the magnification of a model with the Zoom tool, you cannot zoom in any further than the focus point or out past the extents of the model. The direction you can zoom in and out is controlled by the center point set by the Center tool.

When changing the magnification of a model with the Zoom tool, you cannot zoom in any further than the focus point or out past the extents of the model.