Rail Sweep Tangency Controls Quick Help |
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Overview | |||
The Pwr_RailSweep command sweeps one or more shape curves along a set of one or more rail curves with optional tangency constraints. This submenu sets up the tangency controls for the Power Rail Sweep. The tangency controls allow you to control the shape of your rail sweep surface by controling how your profile is modified by the tangency controls along the rails. For further information on using the Power Rail Sweep command, see the Power Rail Sweep documentation. |
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Rail Options | |||
Modify only Selected: Turn
this option on if you want to change the tangency control settings on
specific rails. Without this option turned on, your modifications
will apply to all of the rails in your rail sweep. Use Given Rails: Use the selected rails in the surface construction to exactly interpolate the rail curves. Reapproximate Rails: Re-approximate rails using least squared fitting algorithm to reduce the number of knots. This should be used when there are too many knots in the original rails but some degree of interpolation is required. Don't Use Rails: Ignore the rails when the surface is constructed. It will only approximate the rails. |
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Rail Tangency Options | |||
The rail tangency options
controls how the profile is modified in response to tangent fields along
rails. If you utilize these options with sweep with minimal number of
interior control points the result is equivalent to a blend.
Additional control points may be added to achieve the desired continuity
along the rails. No Tangency:
Ignore any Rail tangency information just utilize standard sweeping
techniques. |
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Rail Control Options | |||
Tangent Strength: This
option controls scales all of the tangent fields which have G1, G2 or G3
continuity. It has no effect on the other cases with don't utilize
magnitude of the tangent field surface.
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