smooth_contours_xldsmooth_contours_xldSmoothContoursXldSmoothContoursXld (Operator)

Name

smooth_contours_xldsmooth_contours_xldSmoothContoursXldSmoothContoursXld — Smooth an XLD contour.

Signature

smooth_contours_xld(Contours : SmoothedContours : NumRegrPoints : )

Herror smooth_contours_xld(const Hobject Contours, Hobject* SmoothedContours, const Hlong NumRegrPoints)

Herror T_smooth_contours_xld(const Hobject Contours, Hobject* SmoothedContours, const Htuple NumRegrPoints)

void SmoothContoursXld(const HObject& Contours, HObject* SmoothedContours, const HTuple& NumRegrPoints)

HXLDCont HXLDCont::SmoothContoursXld(Hlong NumRegrPoints) const

static void HOperatorSet.SmoothContoursXld(HObject contours, out HObject smoothedContours, HTuple numRegrPoints)

HXLDCont HXLDCont.SmoothContoursXld(int numRegrPoints)

Description

smooth_contours_xldsmooth_contours_xldSmoothContoursXldSmoothContoursXldSmoothContoursXld smooths the input XLD contours ContoursContoursContoursContourscontours and returns the smoothed contours in SmoothedContoursSmoothedContoursSmoothedContoursSmoothedContourssmoothedContours. The smoothing is done by projecting the contours' points onto a local regression line (i.e., a least-squares approximating line), which is computed from NumRegrPointsNumRegrPointsNumRegrPointsNumRegrPointsnumRegrPoints on each side of the current contour point. This operator should be called, for example, before contours are scaled.

Execution Information

Parameters

ContoursContoursContoursContourscontours (input_object)  xld_cont-array objectHXLDContHXLDContHobject

Contour to be smoothed.

SmoothedContoursSmoothedContoursSmoothedContoursSmoothedContourssmoothedContours (output_object)  xld_cont-array objectHXLDContHXLDContHobject *

Smoothed contour.

NumRegrPointsNumRegrPointsNumRegrPointsNumRegrPointsnumRegrPoints (input_control)  integer HTupleHTupleHtuple (integer) (int / long) (Hlong) (Hlong)

Number of points used to calculate the regression line.

Default value: 5

Suggested values: 3, 5, 7, 9

Restriction: NumRegrPoints >= 3 && odd(NumRegrPoints)

Possible Predecessors

gen_contours_skeleton_xldgen_contours_skeleton_xldGenContoursSkeletonXldGenContoursSkeletonXldGenContoursSkeletonXld, lines_gausslines_gaussLinesGaussLinesGaussLinesGauss, lines_facetlines_facetLinesFacetLinesFacetLinesFacet, edges_sub_pixedges_sub_pixEdgesSubPixEdgesSubPixEdgesSubPix

Possible Successors

affine_trans_contour_xldaffine_trans_contour_xldAffineTransContourXldAffineTransContourXldAffineTransContourXld, gen_polygons_xldgen_polygons_xldGenPolygonsXldGenPolygonsXldGenPolygonsXld, local_max_contours_xldlocal_max_contours_xldLocalMaxContoursXldLocalMaxContoursXldLocalMaxContoursXld

See also

get_contour_xldget_contour_xldGetContourXldGetContourXldGetContourXld

Module

Foundation