Lib 2d - A c++ library for paths defined by points within the 2d space

float  
double  
long double

Point<T> //a point defined with two coordinates (x and y)  
PointCloud<T> //a collection Points, without topological information
OrderedPointCloud<T> //a PointCloud with additional information regarding sorting and filtering of points
KdTree<T> //search tree to quickly find nearest neighbors

//subclasses of PointCloud
LineSegment<T> //a line segment defined by start and end point
Rectangle<T> //a rectangle defined by width, height and center
Arc<T> //an arc defined by diameter, center, start- and end angle
Ellipse<T> //an ellipse
InterpolationBezier<T> //a bezier curve interpolation  
InterpolationLinear<T> //a linear interpolation
InvolutCircle<T> //involut curve of a circle

move_by(...) //moves the Point or PointCloud  
mirror_vertically(...) //mirrors the Point or PointCloud at a vertical line (horizontally and point also supported)  
rotate(...) //rotate by angle around a center  
to_string(...) //write coordinates to a string  
from_string(...) //parse from a string
distance_to(...) //calculate distances between points
load(...) //load coordinates from file
to_file(...) //write coordinates to file  
bounding_box(...)  //the minimum bounding rectangle of a PointCloud  
convex_hull(...) //calculate the convex hull of a PointCloud  
concave_hull(...) //compareable to the convex hull, while better following the shape of a pointcloud
intersections_with(...) //intersections between paths  
sort_x(...) //sort by x (or y)  
range(from,to) //get ranges of PointCloud
and_many(more)  

path.move_by(...).rotate(...).sort_x(...)

vector< Point <T> > vec = vector<Point <T> >(path.begin(), path.end());  
...  
PointCloud<T> path = PointCloud<T>(vec.begin(), vec.end());

== != //equality  
+ += //appending to PointCloud  
[] //access elements of PointCloud
std::cout << PointCloud<T> << Point<T>; //overloads for streams