#include <LineSegmentExtraction.h>

Public Member Functions
	LineSegmentExtraction (std::tr1::shared_ptr< ImageType > _img, unsigned int _search_radius_along, unsigned int _search_radius_across, unsigned int _border)
LineSegmentMap_shptr	run ()
Private Member Functions
void	extract_primitives ()
LinearPrimitive_shptr	trace_line_primitive (std::tr1::shared_ptr< ImageType > img, unsigned int x, unsigned int y)
Private Attributes
unsigned int	width
unsigned int	height
std::tr1::shared_ptr< ImageType >	img
std::tr1::shared_ptr< ImageType >	processed
LineSegmentMap_shptr	line_segments
unsigned int	search_radius_along
unsigned int	search_radius_across
unsigned int	border

Detailed Description

template<typename ImageType>
class degate::LineSegmentExtraction< ImageType >

Definition at line 270 of file LineSegmentExtraction.h.

Constructor & Destructor Documentation

template<typename ImageType>

degate::LineSegmentExtraction< ImageType >::LineSegmentExtraction	(	std::tr1::shared_ptr< ImageType >	_img,
		unsigned int	_search_radius_along,
		unsigned int	_search_radius_across,
		unsigned int	_border
	)		`[inline]`

Definition at line 283 of file LineSegmentExtraction.h.

References degate::LineSegmentExtraction< ImageType >::img, and degate::LineSegmentExtraction< ImageType >::processed.

                                              :
      width(_img->get_width()),
      height(_img->get_height()),
      img(_img),
      processed(new ImageType(width, height)),
      line_segments(new LineSegmentMap()),
      search_radius_along(_search_radius_along),
      search_radius_across(_search_radius_across),
      border(_border) {

      copy_image<ImageType, ImageType>(processed, img);
    }

Member Function Documentation

template<typename ImageType>

void degate::LineSegmentExtraction< ImageType >::extract_primitives ( ) [inline, private]

Definition at line 307 of file LineSegmentExtraction.h.

References degate::LineSegmentExtraction< ImageType >::border, degate::LineSegmentExtraction< ImageType >::height, degate::LineSegmentExtraction< ImageType >::line_segments, degate::LineSegmentExtraction< ImageType >::processed, degate::LineSegmentExtraction< ImageType >::trace_line_primitive(), and degate::LineSegmentExtraction< ImageType >::width.

Referenced by degate::LineSegmentExtraction< ImageType >::run().

                              {
      for(unsigned int y = border; y < height - border; y++)
        for(unsigned int x = border; x < width - border; x++) {

          if(processed->get_pixel(x, y) > 0) {
            LinearPrimitive_shptr lp = trace_line_primitive(processed, x, y);
            if(lp != NULL) {
              LineSegment_shptr segment(new LineSegment(lp));
              //segment->print();
              line_segments->add(segment);
            }
          }
        }
    }

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template<typename ImageType>

LineSegmentMap_shptr degate::LineSegmentExtraction< ImageType >::run ( ) [inline]

Definition at line 299 of file LineSegmentExtraction.h.

References degate::LineSegmentExtraction< ImageType >::extract_primitives(), degate::LineSegmentExtraction< ImageType >::line_segments, degate::LineSegmentExtraction< ImageType >::search_radius_across, and degate::LineSegmentExtraction< ImageType >::search_radius_along.

Referenced by degate::WireMatching::run().

                               {
      extract_primitives();
      line_segments->merge(search_radius_along, search_radius_across);
      line_segments->write();
      return line_segments;
    }

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template<typename ImageType>

LinearPrimitive_shptr degate::LineSegmentExtraction< ImageType >::trace_line_primitive	(	std::tr1::shared_ptr< ImageType >	img,
		unsigned int	x,
		unsigned int	y
	)		`[inline, private]`

Definition at line 322 of file LineSegmentExtraction.h.

Referenced by degate::LineSegmentExtraction< ImageType >::extract_primitives().

                                                                               {

      LinearPrimitive_shptr segment;

      unsigned int _x = x;
      while(_x < width && img->get_pixel(_x, y) > 0) _x++;

      if(_x - x > 1) {
        segment = LinearPrimitive_shptr(new LinearPrimitive(x, y, _x, y));
        _x = x;
        while(_x < width && img->get_pixel(_x, y) > 0) {
          img->set_pixel(_x, y, 0);
          _x++;
        }
        return segment;
      }

      unsigned int _y = y;
      while(_y < height && img->get_pixel(x, _y) > 0) _y++;

      if(_y - y > 1) {
        segment = LinearPrimitive_shptr(new LinearPrimitive(x, y, x, _y));
        _y = y;
        while(_y < height && img->get_pixel(x, _y) > 0) {
            img->set_pixel(x, _y, 0);
            _y++;
          }
          return segment;
      }

      return segment;
    }