Importance

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Abstract

A software method allows a user to manipulate a three-dimensional object, particularly a custom designed part to be injection molded, on a computer screen with a mouse. The object or part is manipulatable about a center of rotation. The center of rotation is established on a face of the part, perhaps with a snapping feature to position the center of rotation on an edge of the part. A click-drag-drop rotation of the part is achieved based upon a spherical coordinate map of rotation, allowing the user to repositioning the object rendering. The spherical coordinate map of rotation repositions itself relative to the object based upon a pan command changing the view of the object. The preferred spherical coordinate map of rotation is an orientation globe which appears as an overlay during the click-drag-drop command. The pole of the orientation globe corresponds with a z-axis of the injection molded part or pull direction of the injection mold, and has an initial or default position tilted directly toward the viewer, such as at a 30.degree. tilt.

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First Claim