Two visual aids in Autodesk VIZ give you information about your current orientation in the workspace.
If no transform tool is active, an axis tripod appears in the viewports whenever you select one or more objects, to assist you visually in your transforms. When a transform tool is active, the transform gizmo appears instead, unless you've turned it off.
The axis tripod consists of three lines, labeled X, Y, and Z, and shows you three things:
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The orientation of the tripod reveals the orientation of the current reference coordinate system.
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The location of the junction of the three axis lines shows you where your transform center is.
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The highlighted red axis lines show you the axis or axes to which the transform is constrained. For example, if only the X axis line is red, you can move objects only along the X axis.
In the lower-left corner of each viewport you can find the world axis, which shows the current orientation of the viewport with respect to world coordinate system. The world axis colors are red for X, green for Y, and blue for Z. You can toggle the display of the world axis in all viewports by turning off Display World Axis, on the Viewports panel of the Preference Settings dialog.
