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Prezentace Turning 2D Shapes into 3D Objects_Košlab Richard

Y04A2L - Anglický jazyk 2-2

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ffect the final result. Finally, performing the Sweep operation extrudes the cross-section along the path to create a 3D object.
Sweeps come in three basic flavors, defined by the path: open, closed, and helical. Although helical could just be considered another open sweep, it is used so often that it deserves special mention.
Open sweeps are created with paths that have two ends, and are ideal for creating a curved extrusion, which the standard Extrude command can't do. Obvious uses are creating wires, rope, and tubing, plant stalks, snakes, or any sort of bent stock used in manufactured items.
Helical (šroubový) sweeps are a form of open sweep in which the path coils around like a spring, which happens to be the most common use for this type. It's also useful for creating screw threads(=metrický závit). Most programs offer controls for generating the helical path for this sweep easily.
Closed sweeps are created by closing the path, so that the cross-section meets up with itself as it is swept along. Closed sweeps are good for creating such things as fan belts, picture frames, trim, or bumpers around other objects.
Skinning (=stahování)
The final common way of converting 2D shapes into 3D objects is by skinning, which is similar to an open sweep, except that you can use different cross-sectional shapes along the path. In essence, the program creates a "skin" to wrap(=zalomiť) over this framework, something like the way fabric or plastic is stretched over metal tines to create an umbrella.

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Vloženo: 28.04.2009

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