Navigation: Utilities >
Form Removal Utility
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Navigation: Utilities > Form Removal Utility |
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The Form Removal Utility dialog is used to seperate the form, or nominal shape, of the surface from the texture of the surface. Four methods of form removal are available: Three-Point Plane, Least-Squares Polynomial, and Sphere Fit.
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If the three-point plane method of form removal is selected, three red dots are rendered on the surface image. These three points can then be dragged to any location on the surface. It only takes three points to define a plane. The plane fit through these points is then mathematically removed from the surface. |
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The least-squares polynomial method can be used to compute a "best fit" polynomial curve to the surface data. This is typically used to remove a curved or planar nominal shape from the data to analyze the surface texture (short wavelength components). There are four options available: simple planar surface, bi-linear saddle surface, quadratic surface, and cubic surface. |
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The sphere fit method will compute the "best-fit" sphere through the surface data.
NOTE: Using this option an a surface that is not nominally spherical can cause unpredictable results. |
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