int i = kt->seg_index;

double tail_x = ktGetSegmentProperty(kt, MAIN_TYPE, CURRENT, KT_SPT_GX);

double tail_y = ktGetSegmentProperty(kt, MAIN_TYPE, CURRENT, KT_SPT_GX);

if (tail_x == tail_y) {

double new_tail_x = tail_x >= 0 ? tail_x + 1 : tail_x - 1;

double new_tail_y = new_tail_x;

// TODO: set segment property && apply correction

kt->polygon->get_segment(i)->get_tail()

->set_point(new_tail_x, new_tail_y);

}

// profiler

Profiler profiler;

profiler.start((char*)"main");

// random generate 1d vector

// assign maximum size =>

const int max = 100;

vector<double> main_1d_points(max);

srand(time(NULL));

for (int i = 0; i < max; i++) {

main_1d_points[i] = rand() % 100;

};

// transform to Points, then sorting

Points main_points;

main_points.parse_1d_points_from(main_1d_points);

main_points.sort_by_y();

main_points.dump();

Points center;

center.create_center_from(main_points);

center.dump();

// create a set of points

Point a, b, c, d, e, f, g, h;

a.set_point( 0, 0);

b.set_point( 5, 0);

c.set_point( 5, 5);

d.set_point( 0, 5);

e.set_point(-5, 5);

f.set_point(-5, 0);

g.set_point(-5, -5);

h.set_point( 0, -5);

// form each segment

Segment ab, bc, cd, de, ef, fg, gh, ha;

ab.set_segment(&a, &b);

bc.set_segment(&b, &c);

cd.set_segment(&c, &d);

de.set_segment(&d, &e);

ef.set_segment(&e, &f);

fg.set_segment(&f, &g);

gh.set_segment(&g, &h);

ha.set_segment(&h, &a);

// try segment copy

Segment copy_test;

copy_test.copy(ab);

printf("copy segment:\n");

copy_test.dump();

copy_test.free();

// form a set of segments

Segments all;

all.append(&ab);

all.append(&bc);

all.append(&cd);

all.append(&de);

all.append(&ef);

all.append(&fg);

all.append(&gh);

all.append(&ha);

all.dump();

// set the set of segments to a polygon

// and test polygon function

Polygon polygon1;

polygon1.set_polygon(&all);

polygon1.dump();

printf("(%d) segments in this polygon\n", polygon1.get_segment_number());

printf("center point of this polygon is (%f, %f)\n",

polygon1.get_center().get_gx(),

polygon1.get_center().get_gy());

// set the set of segments to another polygon

// yet, they reference the same segments set

printf("\nthis is polygon2\n");

Polygon polygon2;

polygon2.set_polygon(&all);

polygon2.dump();

// try polygon copy

printf("\nthis is polygon3\n");

Polygon polygon3;

polygon3.copy(polygon2);

polygon3.dump();

// append the polygons into a set of polygons

Polygons polygons;

polygons.append(&polygon1);

polygons.append(&polygon3);

// set segment function and loop all polygons set

ktSetSegmentFunction(grow_45_degree);

ktLoopSegment(&polygons);

polygons.dump();

// try loop segment without function set

ktLoopSegment(&polygons);

polygon3.free();

profiler.end();

return 0;