polygon_intersection_example.cc File Reference

Convex polygon intersection demo (Sutherland-Hodgman). More...

#include <geom_algorithms.H>
#include <cassert>
#include <fstream>
#include <iomanip>
#include <iostream>

Include dependency graph for polygon_intersection_example.cc:

Go to the source code of this file.

Functions
static void	print_banner (const char *title)
static Geom_Number	polygon_area (const Polygon &poly)
static void	write_polygon_wkt (ostream &out, const Polygon &poly)
static bool	export_csv (const char *path, const Polygon &subject, const Polygon &clip, const Polygon &inter)
static void	print_polygon (const char *name, const Polygon &poly)
int	main (int argc, char **argv)

Detailed Description

Convex polygon intersection demo (Sutherland-Hodgman).

Demonstrates:

• ConvexPolygonIntersectionBasic (Sutherland-Hodgman clipping)
• Export of the intersection polygon (text formats)

See also

geom_algorithms.H

ConvexPolygonIntersectionBasic

Definition in file polygon_intersection_example.cc.

Function Documentation

export_csv()

static bool export_csv ( const char *  path, const Polygon &  subject, const Polygon &  clip, const Polygon &  inter  )

static

Definition at line 111 of file polygon_intersection_example.cc.

References Aleph::divide_and_conquer_partition_dp(), file, polygon_area(), and write_polygon_wkt().

Referenced by main().

main()

int main	(	int	argc,
		char **	argv
	)

Definition at line 148 of file polygon_intersection_example.cc.

References Aleph::Polygon::add_vertex(), Aleph::Polygon::close(), Aleph::divide_and_conquer_partition_dp(), export_csv(), polygon_area(), print_banner(), and print_polygon().

polygon_area()

static Geom_Number polygon_area ( const Polygon &  poly )

static

Definition at line 60 of file polygon_intersection_example.cc.

References Aleph::Array< T >::append(), Aleph::divide_and_conquer_partition_dp(), Aleph::Point::get_x(), Aleph::Point::get_y(), Aleph::Dlink::Iterator::has_curr(), Aleph::Polygon::is_closed(), Aleph::Array< T >::reserve(), Aleph::Polygon::size(), and Aleph::Array< T >::size().

Referenced by export_csv(), main(), TEST_F(), TEST_F(), TEST_F(), TEST_F(), TEST_F(), TEST_F(), TEST_F(), TEST_F(), TEST_F(), TEST_F(), TEST_F(), TEST_F(), TEST_F(), TEST_F(), TEST_F(), TEST_F(), TEST_F(), TEST_F(), TEST_F(), and TEST_F().

print_banner()

static void print_banner ( const char *  title )

static

Definition at line 54 of file polygon_intersection_example.cc.

Referenced by main().

print_polygon()

static void print_polygon ( const char *  name, const Polygon &  poly  )

static

Definition at line 136 of file polygon_intersection_example.cc.

References Aleph::divide_and_conquer_partition_dp(), Aleph::geom_number_to_double(), Aleph::Point::get_x(), Aleph::Point::get_y(), Aleph::Dlink::Iterator::has_curr(), Aleph::Polygon::is_closed(), and Aleph::Polygon::size().

Referenced by main().

write_polygon_wkt()

static void write_polygon_wkt ( ostream &  out, const Polygon &  poly  )

static

Definition at line 83 of file polygon_intersection_example.cc.

References Aleph::divide_and_conquer_partition_dp(), Aleph::geom_number_to_double(), Aleph::Point::get_x(), Aleph::Point::get_y(), and Aleph::Dlink::Iterator::has_curr().

Referenced by export_csv().