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Description
Creates a spline surface equivalent to IGES entity type 114 by specifying a collection of parametric (u,v) polynomial spline patches. The following table describes the mathematical form of the Spline surface.
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Normalized u, v parameter coordinates
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Un-normalized parameter coordinates
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s, t local patch parameter coordinates
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Patch (i,j)
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Determination of s and t
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Relation of U, V and u, v
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Navigation
This feature can be accessed by selecting Spline Surface (collection of (u,v) polynomial spline patches) as the surface type on the Surface tab of a surface dialog box.
Controls
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Control
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Inputs / Description
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Defaults
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Logical Parent
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Name of Parent entity.
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Custom Element Name
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Name
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Name of surface supplied by user.
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Surf n
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Description
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Description of the surface.
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Traceable
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Surface can be raytraced.
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Checked
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Use for trimming only
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Never raytrace. Surface used for trimming only.
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Unchecked
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Type
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Surface type.
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Spline
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Surface Settings
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UV Degree
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Polynomial degree
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1,1
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UV Breakpoints
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Breakpoints
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(0,1) (0,1)
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Patch
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Patch specifications
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X(0,1) = Y(1,0) = 1, all others zero
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OK
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Accept settings and close dialog box.
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Cancel
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Discard settings and close dialog box.
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Apply
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Accept settings and keep dialog box open.
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Help
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Access this Help page.
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Application Notes
Surface deformation
The Spline Surface is a sagable surface.
Related Topics
Surface types summary
Create a new surface
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Copyright © Photon Engineering, LLC
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