contrib/oxl/osl/osl_break_edge.cxx File Reference

#include "osl_break_edge.h"
#include <vcl_cassert.h>
#include <osl/osl_edge.h>
#include <osl/osl_ortho_regress.h>

Go to the source code of this file.

Functions
void	osl_break_edge (osl_edge const *in, vcl_vector< unsigned > const &where, vcl_list< osl_edge * > *broken)
	Break the given edge at the positions indicated.
void	osl_break_edge (osl_edge const *in, vcl_list< osl_edge * > *out_ptr, double threshold, unsigned nbhd_size)
	Break the given edge at points of "high curvature".

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Detailed Description

Author:

fsm

Definition in file osl_break_edge.cxx.

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Function Documentation

void osl_break_edge	(	osl_edge const *	in,
		vcl_vector< unsigned > const &	where,
		vcl_list< osl_edge * > *	broken
	)

Break the given edge at the positions indicated.

The first element of 'where' must be 0 and the last must be in->size()-1.

The output edges will be in the order of the edgelchain and the first (resp. last) output edge will share its start (resp. end) vertex with the start (resp. end) vertex of the given edge.

The input edge is not modified in any way, though its endpoints will obviously have the reference counts increased.

Definition at line 15 of file osl_break_edge.cxx.

void osl_break_edge	(	osl_edge const *	in,
		vcl_list< osl_edge * > *	broken,
		double	threshold = 0.2,
		unsigned	nbhd_size = 2
	)

Break the given edge at points of "high curvature".

This means edgels where the rms line fitting error over a neighbourhood of the given size exceeds the given threshold.

For a neighbourhood size of k,the number of edgels used in each line fit is 2*k+1 (so the default is 5 edgels). The new edges are pushed onto the end of the given vcl_list in the obvious order.

Definition at line 45 of file osl_break_edge.cxx.