Exemplos de find_intersection_point em C++ (Cpp)

Exemplo n.º 1

Arquivo: geometry_problems.cpp Projeto: gautamghose/lessons

//if point of intersection within the line segments
bool is_intersection_within_line_segments(const line& l1, const line& l2)
{
    point intersection;
    if (false == find_intersection_point(l1, l2, intersection)) return false; 
    if (is_point_within_segment(l1, intersection) &&
        is_point_within_segment(l2, intersection)) return true;
    return false;
}

Exemplo n.º 2

Arquivo: triangle.cpp Projeto: anton-kravchenko/Triangles_openGL_cpp

void Triangle::draw_doodle()
{
	float rotate_angle = -1;
	for(int a = 0; a < 100; a++, rotate_angle-= 0.005)
	{
		for(int i = 0; i < 3; i++)
		{

			//[0] init vector from current
			//[1] rotate to some angle
			//[2] find intersection point of V and next line
			//[3] init second point of current with inters point values

			int cur = i;
			int next = i+1;
			if( 3 == next) next = 0;

	//[0]
			Line *vector = edges[cur];

	//[1]
			// can be negative with vx value in rotate point line:81
			rotate_vector(vector, this->center, rotate_angle);

	//[2]
			Point *inters_point = new Point();
			find_intersection_point(edges[cur], edges[next], inters_point);

	//[3]
			edges[next]->a = inters_point;

			//try to find problem with this pointer
			edges[cur]->b->x = inters_point->x;
			edges[cur]->b->y = inters_point->y;

			edges[cur]->draw();

//		sleep(2);
		usleep(10000);
		}
	}
}