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Action:
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Transforms a surface.
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Prototype:
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void bs3_surface_trans (
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bs3_surface sur,
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// given surface
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SPAtransf const& t
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// transform
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);
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Includes:
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#include "kernel/acis.hxx"
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#include "baseutil/vector/transf.hxx"
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#include "kernel/spline/bs3_srf/bs3surf.hxx"
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#include "kernel/spline/bs3_srf/sp3srtn.hxx"
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Description:
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A transform consists of a 3 x 3 matrix with unit determinant, giving an affine transformation, an overall scaling factor, and a translation vector. There are three logical flags, relating to the matrix.
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Rotate indicates whether the matrix is anything other than the identity.
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Reflect indicates whether the determinant is -1.
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Shear is set if the matrix isn't orthogonal.
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The parameterization of a surface must be independent of transformation. Therefore, the result of evaluating a transformed surface will be the same as evaluating the untransformed surface at the same parameter value, and transforming the result.
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Library:
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kernel
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Filename:
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kern/kernel/spline/bs3_srf/sp3srtn.hxx
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Effect:
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Changes model
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